Upgrade to github/v31 for CompleteAppManifest

split fixtures out elsewhere, add working dir test
2026-07-28 23:08:26 +00:00 · 2020-04-06 00:21:59 -04:00
parent 199cdfe192
commit 227ce9cbf4
219 changed files with 35425 additions and 2392 deletions
--- a/cmd/server.go
+++ b/cmd/server.go
@@ -433,7 +433,7 @@ func (s *ServerCmd) Init() *cobra.Command {
 		s.Viper.BindPFlag(name, c.Flags().Lookup(name)) // nolint: errcheck
 	}

-	// Set int flags.
+	// Set int64 flags.
 	for name, f := range int64Flags {
 		usage := f.description
 		if f.defaultValue != 0 {
--- a/go.mod
+++ b/go.mod
@@ -9,10 +9,10 @@ require (
 	github.com/aokoli/goutils v1.0.1 // indirect
 	github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a // indirect
 	github.com/aws/aws-sdk-go v1.17.14 // indirect
-	github.com/boltdb/bolt v1.3.1 // indirect
 	github.com/bradleyfalzon/ghinstallation v1.1.1
 	github.com/briandowns/spinner v0.0.0-20170614154858-48dbb65d7bd5
 	github.com/davecgh/go-spew v1.1.1
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible
 	github.com/docker/docker v0.0.0-20180620051407-e2593239d949
 	github.com/elazarl/go-bindata-assetfs v1.0.0
 	github.com/flynn-archive/go-shlex v0.0.0-20150515145356-3f9db97f8568
@@ -20,8 +20,8 @@ require (
 	github.com/go-playground/locales v0.12.1 // indirect
 	github.com/go-playground/universal-translator v0.16.0 // indirect
 	github.com/go-test/deep v1.0.3
-	github.com/google/go-github/v28 v28.1.1
-	github.com/google/go-github/v31 v31.0.0 // indirect
+	github.com/google/go-github v17.0.0+incompatible
+	github.com/google/go-github/v31 v31.0.0
 	github.com/google/uuid v0.0.0-20161128191214-064e2069ce9c // indirect
 	github.com/gorilla/context v0.0.0-20160226214623-1ea25387ff6f // indirect
 	github.com/gorilla/mux v1.6.2
--- a/go.sum
+++ b/go.sum
@@ -30,7 +30,6 @@ github.com/aws/aws-sdk-go v1.17.14 h1:IjqZDIQoLyZ48A93BxVrZOaIGgZPRi4nXt6WQUMJpl
 github.com/aws/aws-sdk-go v1.17.14/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d h1:xDfNPAt8lFiC1UJrqV3uuy861HCTo708pDMbjHHdCas=
 github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d/go.mod h1:6QX/PXZ00z/TKoufEY6K/a0k6AhaJrQKdFe6OfVXsa4=
-github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps=
 github.com/bradleyfalzon/ghinstallation v1.1.1 h1:pmBXkxgM1WeF8QYvDLT5kuQiHMcmf+X015GI0KM/E3I=
 github.com/bradleyfalzon/ghinstallation v1.1.1/go.mod h1:vyCmHTciHx/uuyN82Zc3rXN3X2KTK8nUTCrTMwAhcug=
 github.com/briandowns/spinner v0.0.0-20170614154858-48dbb65d7bd5 h1:osZyZB7J4kE1tKLeaUjV6+uZVBfS835T0I/RxmwWw1w=
@@ -78,10 +77,10 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.3.1 h1:Xye71clBPdm5HgqGwUkwhbynsUJZhDbS20FvLhQ2izg=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-github v17.0.0+incompatible h1:N0LgJ1j65A7kfXrZnUDaYCs/Sf4rEjNlfyDHW9dolSY=
-github.com/google/go-github/v28 v28.1.1 h1:kORf5ekX5qwXO2mGzXXOjMe/g6ap8ahVe0sBEulhSxo=
-github.com/google/go-github/v28 v28.1.1/go.mod h1:bsqJWQX05omyWVmc00nEUql9mhQyv38lDZ8kPZcQVoM=
+github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
 github.com/google/go-github/v29 v29.0.2 h1:opYN6Wc7DOz7Ku3Oh4l7prmkOMwEcQxpFtxdU8N8Pts=
 github.com/google/go-github/v29 v29.0.2/go.mod h1:CHKiKKPHJ0REzfwc14QMklvtHwCveD0PxlMjLlzAM5E=
+github.com/google/go-github/v31 v31.0.0 h1:JJUxlP9lFK+ziXKimTCprajMApV1ecWD4NB6CCb0plo=
 github.com/google/go-github/v31 v31.0.0/go.mod h1:NQPZol8/1sMoWYGN2yaALIBytu17gAWfhbweiEed3pM=
 github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
--- a/server/events/command_runner.go
+++ b/server/events/command_runner.go
@@ -17,7 +17,7 @@ import (
 	"fmt"
 	"sync"

-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 	"github.com/mcdafydd/go-azuredevops/azuredevops"
 	"github.com/pkg/errors"
 	"github.com/remeh/sizedwaitgroup"
--- a/server/events/command_runner_test.go
+++ b/server/events/command_runner_test.go
@@ -22,7 +22,7 @@ import (
 	"github.com/runatlantis/atlantis/server/events/db"
 	"github.com/runatlantis/atlantis/server/logging"

-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 	. "github.com/petergtz/pegomock"
 	"github.com/runatlantis/atlantis/server/events"
 	"github.com/runatlantis/atlantis/server/events/mocks"
--- a/server/events/event_parser.go
+++ b/server/events/event_parser.go
@@ -20,7 +20,7 @@ import (
 	"path"
 	"strings"

-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 	"github.com/mcdafydd/go-azuredevops/azuredevops"
 	"github.com/pkg/errors"
 	"github.com/runatlantis/atlantis/server/events/models"
--- a/server/events/event_parser_test.go
+++ b/server/events/event_parser_test.go
@@ -21,7 +21,7 @@ import (
 	"strings"
 	"testing"

-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 	"github.com/mcdafydd/go-azuredevops/azuredevops"
 	"github.com/mohae/deepcopy"
 	"github.com/runatlantis/atlantis/server/events"
--- a/server/events/mocks/matchers/ptr_to_github_issuecommentevent.go
+++ b/server/events/mocks/matchers/ptr_to_github_issuecommentevent.go
@@ -3,8 +3,9 @@ package matchers

 import (
 	"reflect"
+
+	github "github.com/google/go-github/v31/github"
 	"github.com/petergtz/pegomock"
-	github "github.com/google/go-github/v28/github"
 )

 func AnyPtrToGithubIssueCommentEvent() *github.IssueCommentEvent {
--- a/server/events/mocks/matchers/ptr_to_github_pullrequest.go
+++ b/server/events/mocks/matchers/ptr_to_github_pullrequest.go
@@ -3,8 +3,9 @@ package matchers

 import (
 	"reflect"
+
+	github "github.com/google/go-github/v31/github"
 	"github.com/petergtz/pegomock"
-	github "github.com/google/go-github/v28/github"
 )

 func AnyPtrToGithubPullRequest() *github.PullRequest {
--- a/server/events/mocks/matchers/ptr_to_github_pullrequestevent.go
+++ b/server/events/mocks/matchers/ptr_to_github_pullrequestevent.go
@@ -3,8 +3,9 @@ package matchers

 import (
 	"reflect"
+
+	github "github.com/google/go-github/v31/github"
 	"github.com/petergtz/pegomock"
-	github "github.com/google/go-github/v28/github"
 )

 func AnyPtrToGithubPullRequestEvent() *github.PullRequestEvent {
--- a/server/events/mocks/matchers/ptr_to_github_repository.go
+++ b/server/events/mocks/matchers/ptr_to_github_repository.go
@@ -3,8 +3,9 @@ package matchers

 import (
 	"reflect"
+
+	github "github.com/google/go-github/v31/github"
 	"github.com/petergtz/pegomock"
-	github "github.com/google/go-github/v28/github"
 )

 func AnyPtrToGithubRepository() *github.Repository {
--- a/server/events/mocks/mock_event_parsing.go
+++ b/server/events/mocks/mock_event_parsing.go
@@ -4,13 +4,14 @@
 package mocks

 import (
-	github "github.com/google/go-github/v28/github"
+	"reflect"
+	"time"
+
+	github "github.com/google/go-github/v31/github"
 	azuredevops "github.com/mcdafydd/go-azuredevops/azuredevops"
 	pegomock "github.com/petergtz/pegomock"
 	models "github.com/runatlantis/atlantis/server/events/models"
 	go_gitlab "github.com/xanzy/go-gitlab"
-	"reflect"
-	"time"
 )

 type MockEventParsing struct {
--- a/server/events/mocks/mock_github_pull_getter.go
+++ b/server/events/mocks/mock_github_pull_getter.go
@@ -4,11 +4,12 @@
 package mocks

 import (
-	github "github.com/google/go-github/v28/github"
-	pegomock "github.com/petergtz/pegomock"
-	models "github.com/runatlantis/atlantis/server/events/models"
 	"reflect"
 	"time"
+
+	github "github.com/google/go-github/v31/github"
+	pegomock "github.com/petergtz/pegomock"
+	models "github.com/runatlantis/atlantis/server/events/models"
 )

 type MockGithubPullGetter struct {
--- a/server/events/vcs/fixtures/fixtures.go
+++ b/server/events/vcs/fixtures/fixtures.go
@@ -14,7 +14,15 @@
 package fixtures

 import (
-	"github.com/google/go-github/v28/github"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+
+	"github.com/dgrijalva/jwt-go"
+	"github.com/google/go-github/github/v31/github"
 	"github.com/mcdafydd/go-azuredevops/azuredevops"
 )

@@ -218,3 +226,304 @@ var ADPullJSON = `{
 	"supportsIterations": true,
 	"artifactId": "vstfs:///Git/PullRequestId/a7573007-bbb3-4341-b726-0c4148a07853%2f3411ebc1-d5aa-464f-9615-0b527bc66719%2f22"
 }`
+
+const GithubPrivateKey = `-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
+`
+
+// https://developer.github.com/v3/apps/#response-9
+var githubConversionJSON = `{
+	"id":      1,
+	"node_id": "MDM6QXBwNTk=",
+	"owner": {
+		"login":               "octocat",
+		"id":                  1,
+		"node_id":             "MDQ6VXNlcjE=",
+		"avatar_url":          "https://github.com/images/error/octocat_happy.gif",
+		"gravatar_id":         "",
+		"url":                 "https://api.github.com/users/octocat",
+		"html_url":            "https://github.com/octocat",
+		"followers_url":       "https://api.github.com/users/octocat/followers",
+		"following_url":       "https://api.github.com/users/octocat/following{/other_user}",
+		"gists_url":           "https://api.github.com/users/octocat/gists{/gist_id}",
+		"starred_url":         "https://api.github.com/users/octocat/starred{/owner}{/repo}",
+		"subscriptions_url":   "https://api.github.com/users/octocat/subscriptions",
+		"organizations_url":   "https://api.github.com/users/octocat/orgs",
+		"repos_url":           "https://api.github.com/users/octocat/repos",
+		"events_url":          "https://api.github.com/users/octocat/events{/privacy}",
+		"received_events_url": "https://api.github.com/users/octocat/received_events",
+		"type":                "User",
+		"site_admin":          false
+	},
+	"name":           "Atlantis",
+	"description":    null,
+	"external_url":   "https://atlantis.example.com",
+	"html_url":       "https://github.com/apps/atlantis",
+	"created_at":     "2018-09-13T12:28:37Z",
+	"updated_at":     "2018-09-13T12:28:37Z",
+	"client_id":      "Iv1.8a61f9b3a7aba766",
+	"client_secret":  "1726be1638095a19edd134c77bde3aa2ece1e5d8",
+	"webhook_secret": "e340154128314309424b7c8e90325147d99fdafa",
+	"pem":            "%s"
+}`
+
+var githubAppInfoJSON = `{
+	"id":      1,
+	"slug":    "atlantis",
+	"node_id": "MDExOkludGVncmF0aW9uMQ==",
+	"owner": {
+		"login":              "github",
+		"id":                 1,
+		"node_id":            "MDEyOk9yZ2FuaXphdGlvbjE=",
+		"url":                "https://api.github.com/orgs/github",
+		"repos_url":          "https://api.github.com/orgs/github/repos",
+		"events_url":         "https://api.github.com/orgs/github/events",
+		"hooks_url":          "https://api.github.com/orgs/github/hooks",
+		"issues_url":         "https://api.github.com/orgs/github/issues",
+		"members_url":        "https://api.github.com/orgs/github/members{/member}",
+		"public_members_url": "https://api.github.com/orgs/github/public_members{/member}",
+		"avatar_url":         "https://github.com/images/error/octocat_happy.gif",
+		"description":        "A great organization"
+	},
+	"name":         "Atlantis",
+	"description":  "atlantis",
+	"external_url": "https://atlantis.example.com",
+	"html_url":     "https://github.com/apps/atlantis",
+	"created_at":   "2017-07-08T16:18:44-04:00",
+	"updated_at":   "2017-07-08T16:18:44-04:00",
+	"permissions":{
+		"checks":           "write",
+		"contents":         "write",
+		"issues":           "write",
+		"pull_requests":    "write",
+		"repository_hooks": "write",
+		"statuses":         "write"
+	},
+	"events": [
+		"check_run",
+		"create",
+		"delete",
+		"pull_request",
+		"push",
+		"issues"
+	],
+	"installations_count": 1
+}`
+
+var githubAppTokenJSON = `{
+	"token":      "v1.1f699f1069f60xx%d",
+	"expires_at": "2050-01-01T00:00:00Z",
+	"permissions": {
+		"issues":   "write",
+		"contents": "read"
+	},
+	"repositories": [
+		{
+			"id":        1296269,
+			"node_id":   "MDEwOlJlcG9zaXRvcnkxMjk2MjY5",
+			"name":      "Hello-World",
+			"full_name": "octocat/Hello-World",
+			"owner": {
+				"login":               "octocat",
+				"id":                  1,
+				"node_id":             "MDQ6VXNlcjE=",
+				"avatar_url":          "https://github.com/images/error/octocat_happy.gif",
+				"gravatar_id":         "",
+				"url":                 "https://api.github.com/users/octocat",
+				"html_url":            "https://github.com/octocat",
+				"followers_url":       "https://api.github.com/users/octocat/followers",
+				"following_url":       "https://api.github.com/users/octocat/following{/other_user}",
+				"gists_url":           "https://api.github.com/users/octocat/gists{/gist_id}",
+				"starred_url":         "https://api.github.com/users/octocat/starred{/owner}{/repo}",
+				"subscriptions_url":   "https://api.github.com/users/octocat/subscriptions",
+				"organizations_url":   "https://api.github.com/users/octocat/orgs",
+				"repos_url":           "https://api.github.com/users/octocat/repos",
+				"events_url":          "https://api.github.com/users/octocat/events{/privacy}",
+				"received_events_url": "https://api.github.com/users/octocat/received_events",
+				"type":                "User",
+				"site_admin":          false
+			},
+			"private":           false,
+			"html_url":          "https://github.com/octocat/Hello-World",
+			"description":       "This your first repo!",
+			"fork":              false,
+			"url":               "https://api.github.com/repos/octocat/Hello-World",
+			"archive_url":       "http://api.github.com/repos/octocat/Hello-World/{archive_format}{/ref}",
+			"assignees_url":     "http://api.github.com/repos/octocat/Hello-World/assignees{/user}",
+			"blobs_url":         "http://api.github.com/repos/octocat/Hello-World/git/blobs{/sha}",
+			"branches_url":      "http://api.github.com/repos/octocat/Hello-World/branches{/branch}",
+			"collaborators_url": "http://api.github.com/repos/octocat/Hello-World/collaborators{/collaborator}",
+			"comments_url":      "http://api.github.com/repos/octocat/Hello-World/comments{/number}",
+			"commits_url":       "http://api.github.com/repos/octocat/Hello-World/commits{/sha}",
+			"compare_url":       "http://api.github.com/repos/octocat/Hello-World/compare/{base}...{head}",
+			"contents_url":      "http://api.github.com/repos/octocat/Hello-World/contents/{+path}",
+			"contributors_url":  "http://api.github.com/repos/octocat/Hello-World/contributors",
+			"deployments_url":   "http://api.github.com/repos/octocat/Hello-World/deployments",
+			"downloads_url":     "http://api.github.com/repos/octocat/Hello-World/downloads",
+			"events_url":        "http://api.github.com/repos/octocat/Hello-World/events",
+			"forks_url":         "http://api.github.com/repos/octocat/Hello-World/forks",
+			"git_commits_url":   "http://api.github.com/repos/octocat/Hello-World/git/commits{/sha}",
+			"git_refs_url":      "http://api.github.com/repos/octocat/Hello-World/git/refs{/sha}",
+			"git_tags_url":      "http://api.github.com/repos/octocat/Hello-World/git/tags{/sha}",
+			"git_url":           "git:github.com/octocat/Hello-World.git",
+			"issue_comment_url": "http://api.github.com/repos/octocat/Hello-World/issues/comments{/number}",
+			"issue_events_url":  "http://api.github.com/repos/octocat/Hello-World/issues/events{/number}",
+			"issues_url":        "http://api.github.com/repos/octocat/Hello-World/issues{/number}",
+			"keys_url":          "http://api.github.com/repos/octocat/Hello-World/keys{/key_id}",
+			"labels_url":        "http://api.github.com/repos/octocat/Hello-World/labels{/name}",
+			"languages_url":     "http://api.github.com/repos/octocat/Hello-World/languages",
+			"merges_url":        "http://api.github.com/repos/octocat/Hello-World/merges",
+			"milestones_url":    "http://api.github.com/repos/octocat/Hello-World/milestones{/number}",
+			"notifications_url": "http://api.github.com/repos/octocat/Hello-World/notifications{?since,all,participating}",
+			"pulls_url":         "http://api.github.com/repos/octocat/Hello-World/pulls{/number}",
+			"releases_url":      "http://api.github.com/repos/octocat/Hello-World/releases{/id}",
+			"ssh_url":           "git@github.com:octocat/Hello-World.git",
+			"stargazers_url":    "http://api.github.com/repos/octocat/Hello-World/stargazers",
+			"statuses_url":      "http://api.github.com/repos/octocat/Hello-World/statuses/{sha}",
+			"subscribers_url":   "http://api.github.com/repos/octocat/Hello-World/subscribers",
+			"subscription_url":  "http://api.github.com/repos/octocat/Hello-World/subscription",
+			"tags_url":          "http://api.github.com/repos/octocat/Hello-World/tags",
+			"teams_url":         "http://api.github.com/repos/octocat/Hello-World/teams",
+			"trees_url":         "http://api.github.com/repos/octocat/Hello-World/git/trees{/sha}",
+			"clone_url":         "https://github.com/octocat/Hello-World.git",
+			"mirror_url":        "git:git.example.com/octocat/Hello-World",
+			"hooks_url":         "http://api.github.com/repos/octocat/Hello-World/hooks",
+			"svn_url":           "https://svn.github.com/octocat/Hello-World",
+			"homepage":          "https://github.com",
+			"language":          null,
+			"forks_count":       9,
+			"stargazers_count":  80,
+			"watchers_count":    80,
+			"size":              108,
+			"default_branch":    "master",
+			"open_issues_count": 0,
+			"is_template":       true,
+			"topics": [
+				"octocat",
+				"atom",
+				"electron",
+				"api"
+			],
+			"has_issues":    true,
+			"has_projects":  true,
+			"has_wiki":      true,
+			"has_pages":     false,
+			"has_downloads": true,
+			"archived":      false,
+			"disabled":      false,
+			"visibility":    "public",
+			"pushed_at":     "2011-01-26T19:06:43Z",
+			"created_at":    "2011-01-26T19:01:12Z",
+			"updated_at":    "2011-01-26T19:14:43Z",
+			"permissions": {
+				"admin": false,
+				"push":  false,
+				"pull":  true
+			},
+			"allow_rebase_merge":  true,
+			"template_repository": null,
+			"temp_clone_token":    "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+			"allow_squash_merge":  true,
+			"allow_merge_commit":  true,
+			"subscribers_count":   42,
+			"network_count":       0
+		}
+	]
+}`
+
+func validateGithubToken(tokenString string) error {
+	key, err := jwt.ParseRSAPrivateKeyFromPEM([]byte(GithubPrivateKey))
+	if err != nil {
+		return fmt.Errorf("could not parse private key: %s", err)
+	}
+
+	token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
+		// Don't forget to validate the alg is what you expect:
+		if _, ok := token.Method.(*jwt.SigningMethodRSA); !ok {
+			err := fmt.Errorf("Unexpected signing method: %v", token.Header["alg"])
+
+			return nil, err
+		}
+
+		return key.Public(), nil
+	})
+
+	if err != nil {
+		return err
+	}
+
+	if claims, ok := token.Claims.(jwt.MapClaims); !ok || !token.Valid || claims["iss"] != "1" {
+		return fmt.Errorf("Invalid token")
+	}
+	return nil
+}
+
+func GithubAppTestServer(t *testing.T) (string, error) {
+	counter := 0
+	testServer := httptest.NewTLSServer(
+		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			switch r.RequestURI {
+			// https://developer.github.com/v3/apps/#get-the-authenticated-github-app
+			case "/api/v3/app":
+				token := strings.Replace(r.Header.Get("Authorization"), "Bearer ", "", 1)
+				if err := validateGithubToken(token); err != nil {
+					w.WriteHeader(403)
+					w.Write([]byte("Invalid token"))
+					return
+				}
+
+				w.Write([]byte(githubAppInfoJSON)) // nolint: errcheck
+				return
+			case "/api/v3/app-manifests/good-code/conversions":
+				encodedKey := strings.Join(strings.Split(GithubPrivateKey, "\n"), "\\n")
+				appInfo := fmt.Sprintf(githubConversionJSON, encodedKey)
+				w.Write([]byte(appInfo)) // nolint: errcheck
+			case "/api/v3/app/installations/1/access_tokens":
+			case "/api/v3//app/installations/1/access_tokens":
+				token := strings.Replace(r.Header.Get("Authorization"), "Bearer ", "", 1)
+				if err := validateGithubToken(token); err != nil {
+					w.WriteHeader(403)
+					w.Write([]byte("Invalid token"))
+					return
+				}
+
+				appToken := fmt.Sprintf(githubAppTokenJSON, counter)
+				counter++
+				w.Write([]byte(appToken)) // nolint: errcheck
+				return
+			default:
+				t.Errorf("got unexpected request at %q", r.RequestURI)
+				http.Error(w, "not found", http.StatusNotFound)
+				return
+			}
+		}))
+
+	testServerURL, err := url.Parse(testServer.URL)
+
+	return testServerURL.Host, err
+}
--- a/server/events/vcs/github_client.go
+++ b/server/events/vcs/github_client.go
@@ -23,7 +23,7 @@ import (
 	"github.com/runatlantis/atlantis/server/logging"

 	"github.com/Laisky/graphql"
-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 	"github.com/pkg/errors"
 	"github.com/shurcooL/githubv4"
 )
@@ -41,17 +41,35 @@ type GithubClient struct {
 	logger         *logging.SimpleLogger
 }

+// GithubAppTemporarySecrets hold app credentials obtained from github after creation
+type GithubAppTemporarySecrets struct {
+	ID            int64
+	Key           string
+	Name          string
+	WebhookSecret string
+}
+
 // NewGithubClient returns a valid GitHub client.
 func NewGithubClient(hostname string, credentials GithubCredentials, logger *logging.SimpleLogger) (*GithubClient, error) {

-	apiURL := githubAPIURL(hostname)
-	transport, err := credentials.Client(apiURL.String())
+	transport, err := credentials.Client()
 	if err != nil {
 		return nil, errors.Wrap(err, "Error initializing github authentication transport")
 	}
-	client := github.NewClient(transport)
-	client.BaseURL = apiURL
-	graphqlURL := fmt.Sprintf("https://%s/graphql", apiURL.Host)
+
+	var graphqlURL string
+	var client *github.Client
+	if hostname == "github.com" {
+		client = github.NewClient(transport)
+		graphqlURL = "https://api.github.com/graphql"
+	} else {
+		apiURL := resolveGithubAPIURL(hostname)
+		client, err = github.NewEnterpriseClient(apiURL.String(), apiURL.String(), transport)
+		if err != nil {
+			return nil, err
+		}
+		graphqlURL = fmt.Sprintf("https://%s/graphql", apiURL.Host)
+	}

 	// shurcooL's githubv4 library has a client ctor, but it doesn't support schema
 	// previews, which need custom Accept headers (https://developer.github.com/v4/previews)
@@ -62,12 +80,11 @@ func NewGithubClient(hostname string, credentials GithubCredentials, logger *log
 	// shurcooL's libraries completely.
 	v4MutateClient := graphql.NewClient(
 		graphqlURL,
-		tp.Client(),
+		transport,
 		graphql.WithHeader("Accept", "application/vnd.github.queen-beryl-preview+json"),
 	)
-
 	return &GithubClient{
-		user:           user,
+		user:           credentials.GetUser(),
 		client:         client,
 		v4MutateClient: v4MutateClient,
 		ctx:            context.Background(),
@@ -135,8 +152,8 @@ func (g *GithubClient) HidePrevPlanComments(repo models.Repo, pullNum int) error
 	for {
 		g.logger.Debug("GET /repos/%v/%v/issues/%d/comments", repo.Owner, repo.Name, pullNum)
 		comments, resp, err := g.client.Issues.ListComments(g.ctx, repo.Owner, repo.Name, pullNum, &github.IssueListCommentsOptions{
-			Sort:        "created",
-			Direction:   "asc",
+			Sort:        github.String("created"),
+			Direction:   github.String("asc"),
 			ListOptions: github.ListOptions{Page: nextPage},
 		})
 		if err != nil {
@@ -320,3 +337,17 @@ func (g *GithubClient) MergePull(pull models.PullRequest) error {
 func (g *GithubClient) MarkdownPullLink(pull models.PullRequest) (string, error) {
 	return fmt.Sprintf("#%d", pull.Num), nil
 }
+
+// ExchangeCode returns a newly created app's info
+func (g *GithubClient) ExchangeCode(code string) (*GithubAppTemporarySecrets, error) {
+	ctx := context.Background()
+	cfg, _, err := g.client.Apps.CompleteAppManifest(ctx, code)
+	data := &GithubAppTemporarySecrets{
+		ID:            cfg.GetID(),
+		Key:           cfg.GetPEM(),
+		WebhookSecret: cfg.GetWebhookSecret(),
+		Name:          cfg.GetName(),
+	}
+
+	return data, err
+}
--- a/server/events/vcs/github_client_test.go
+++ b/server/events/vcs/github_client_test.go
@@ -59,7 +59,7 @@ func TestGithubClient_GetModifiedFiles(t *testing.T) {

 	testServerURL, err := url.Parse(testServer.URL)
 	Ok(t, err)
-	client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"})
+	client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"}, nil)
 	Ok(t, err)
 	defer disableSSLVerification()()

@@ -114,7 +114,7 @@ func TestGithubClient_GetModifiedFilesMovedFile(t *testing.T) {

 	testServerURL, err := url.Parse(testServer.URL)
 	Ok(t, err)
-	client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"})
+	client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"}, nil)
 	Ok(t, err)
 	defer disableSSLVerification()()

@@ -208,7 +208,7 @@ func TestGithubClient_PaginatesComments(t *testing.T) {
 	testServerURL, err := url.Parse(testServer.URL)
 	Ok(t, err)

-	client, err := vcs.NewGithubClient(testServerURL.Host, "user", "pass", nil)
+	client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"}, nil)
 	Ok(t, err)
 	defer disableSSLVerification()()

@@ -294,7 +294,7 @@ func TestGithubClient_HideOldComments(t *testing.T) {
 	testServerURL, err := url.Parse(testServer.URL)
 	Ok(t, err)

-	client, err := vcs.NewGithubClient(testServerURL.Host, "user", "pass", nil)
+	client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"}, nil)
 	Ok(t, err)
 	defer disableSSLVerification()()

@@ -358,7 +358,7 @@ func TestGithubClient_UpdateStatus(t *testing.T) {

 			testServerURL, err := url.Parse(testServer.URL)
 			Ok(t, err)
-			client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"})
+			client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"}, nil)
 			Ok(t, err)
 			defer disableSSLVerification()()

@@ -444,7 +444,7 @@ func TestGithubClient_PullIsApproved(t *testing.T) {

 	testServerURL, err := url.Parse(testServer.URL)
 	Ok(t, err)
-	client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"})
+	client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"}, nil)
 	Ok(t, err)
 	defer disableSSLVerification()()

@@ -535,7 +535,7 @@ func TestGithubClient_PullIsMergeable(t *testing.T) {
 				}))
 			testServerURL, err := url.Parse(testServer.URL)
 			Ok(t, err)
-			client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"})
+			client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"}, nil)
 			Ok(t, err)
 			defer disableSSLVerification()()

@@ -617,7 +617,7 @@ func TestGithubClient_MergePullHandlesError(t *testing.T) {

 			testServerURL, err := url.Parse(testServer.URL)
 			Ok(t, err)
-			client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"})
+			client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"}, nil)
 			Ok(t, err)
 			defer disableSSLVerification()()

@@ -739,7 +739,7 @@ func TestGithubClient_MergePullCorrectMethod(t *testing.T) {

 			testServerURL, err := url.Parse(testServer.URL)
 			Ok(t, err)
-			client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"})
+			client, err := vcs.NewGithubClient(testServerURL.Host, &vcs.GithubUserCredentials{"user", "pass"}, nil)
 			Ok(t, err)
 			defer disableSSLVerification()()

--- a/server/events/vcs/github_credentials.go
+++ b/server/events/vcs/github_credentials.go
@@ -2,35 +2,39 @@ package vcs

 import (
 	"context"
-	"fmt"
+	"log"
 	"net/http"
 	"net/url"
 	"strings"

 	"github.com/bradleyfalzon/ghinstallation"
-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 )

-func githubAPIURL(hostname string) *url.URL {
-	// If we're using github.com then we don't need to do any additional configuration
-	// for the client. It we're using Github Enterprise, then we need to manually
-	// set the base url for the API.
-	baseURL := &url.URL{
-		Scheme: "https",
-		Host:   "api.github.com",
-		Path:   "/",
-	}
-	if hostname != "github.com" {
-		baseURL.Host = hostname
-		baseURL.Path = "/api/v3/"
-	}
-
-	return baseURL
-}
-
 // GithubCredentials handles creating http.Clients that authenticate
 type GithubCredentials interface {
-	Client(hostname string) (*http.Client, error)
+	Client() (*http.Client, error)
+	GetToken() (string, error)
+	GetUser() string
+}
+
+// GithubAnonymousCredentials expose no credentials
+type GithubAnonymousCredentials struct{}
+
+// Client returns a client with no credentials
+func (c *GithubAnonymousCredentials) Client() (*http.Client, error) {
+	tr := http.DefaultTransport
+	return &http.Client{Transport: tr}, nil
+}
+
+// GetUser returns the username for these credentials
+func (c *GithubAnonymousCredentials) GetUser() string {
+	return "anonymous"
+}
+
+// GetToken returns an empty token
+func (c *GithubAnonymousCredentials) GetToken() (string, error) {
+	return "", nil
 }

 // GithubUserCredentials implements GithubCredentials for the personal auth token flow
@@ -40,7 +44,7 @@ type GithubUserCredentials struct {
 }

 // Client returns a client for basic auth user credentials
-func (c *GithubUserCredentials) Client(hostname string) (*http.Client, error) {
+func (c *GithubUserCredentials) Client() (*http.Client, error) {
 	tr := &github.BasicAuthTransport{
 		Username: strings.TrimSpace(c.User),
 		Password: strings.TrimSpace(c.Token),
@@ -48,53 +52,139 @@ func (c *GithubUserCredentials) Client(hostname string) (*http.Client, error) {
 	return tr.Client(), nil
 }

-// GithubAppCredentials implements GithubCredentials for github app installation token flow
-type GithubAppCredentials struct {
-	AppID   int64
-	KeyPath string
+// GetUser returns the username for these credentials
+func (c *GithubUserCredentials) GetUser() string {
+	return c.User
 }

-func (c *GithubAppCredentials) getInstallationID(apiURL string) (int64, error) {
+// GetToken returns the user token
+func (c *GithubUserCredentials) GetToken() (string, error) {
+	return c.Token, nil
+}
+
+// GithubAppCredentials implements GithubCredentials for github app installation token flow
+type GithubAppCredentials struct {
+	AppID          int64
+	KeyPath        string
+	Hostname       string
+	apiURL         *url.URL
+	installationID int64
+	token          *github.InstallationToken
+}
+
+// Client returns a github app installation client
+func (c *GithubAppCredentials) Client() (*http.Client, error) {
+	itr, err := c.transport()
+	if err != nil {
+		return nil, err
+	}
+	return &http.Client{Transport: itr}, nil
+}
+
+// GetUser returns the username for these credentials
+func (c *GithubAppCredentials) GetUser() string {
+	return ""
+}
+
+// GetToken returns a fresh installation token
+func (c *GithubAppCredentials) GetToken() (string, error) {
+	if c.token != nil {
+		log.Println(c.token.GetExpiresAt())
+		return c.token.GetToken(), nil
+	}
+
+	transport, err := c.Client()
+	if err != nil {
+		return "", err
+	}
+
+	apiURL := c.getAPIURL()
+	var client *github.Client
+
+	if apiURL.Hostname() == "github.com" {
+		client = github.NewClient(transport)
+	} else {
+		client, _ = github.NewEnterpriseClient(apiURL.String(), apiURL.String(), transport)
+	}
+
+	installationID, err := c.getInstallationID()
+	if err != nil {
+		return "", err
+	}
+
+	token, _, err := client.Apps.CreateInstallationToken(context.Background(), installationID, &github.InstallationTokenOptions{})
+
+	if err != nil {
+		return "", err
+	}
+
+	c.token = token
+	return token.GetToken(), nil
+}
+
+func (c *GithubAppCredentials) getInstallationID() (int64, error) {
+	if c.installationID != 0 {
+		return c.installationID, nil
+	}
+
 	tr := http.DefaultTransport
 	// A non-installation transport
 	t, err := ghinstallation.NewAppsTransportKeyFromFile(tr, c.AppID, c.KeyPath)
+	t.BaseURL = c.getAPIURL().String()
 	if err != nil {
 		return 0, err
 	}

 	// Query github with the app's JWT
 	client := github.NewClient(&http.Client{Transport: t})
+	client.BaseURL = c.getAPIURL()
 	ctx := context.Background()
-	app := &struct {
-		ID int64 `json:"id"`
-	}{}
-
-	url := fmt.Sprintf("%sapp", apiURL)
-	req, err := http.NewRequest("GET", url, nil)
+	app, _, err := client.Apps.Get(ctx, "")
 	if err != nil {
 		return 0, err
 	}

-	_, err = client.Do(ctx, req, app)
-	if err != nil {
-		return 0, err
-	}
-
-	return app.ID, nil
+	c.installationID = app.GetID()
+	return c.installationID, nil
 }

-// Client returns a github app installation client
-func (c *GithubAppCredentials) Client(hostname string) (*http.Client, error) {
-	installationID, err := c.getInstallationID(githubAPIURL(hostname).String())
+func (c *GithubAppCredentials) transport() (*ghinstallation.Transport, error) {
+	installationID, err := c.getInstallationID()
 	if err != nil {
 		return nil, err
 	}

 	tr := http.DefaultTransport
 	itr, err := ghinstallation.NewKeyFromFile(tr, c.AppID, installationID, c.KeyPath)
-	if err != nil {
-		return nil, err
+	if err == nil {
+		itr.BaseURL = c.getAPIURL().String()
+	}
+	return itr, err
+}
+
+func (c *GithubAppCredentials) getAPIURL() *url.URL {
+	if c.apiURL != nil {
+		return c.apiURL
 	}

-	return &http.Client{Transport: itr}, nil
+	c.apiURL = resolveGithubAPIURL(c.Hostname)
+	return c.apiURL
+}
+
+func resolveGithubAPIURL(hostname string) *url.URL {
+	// If we're using github.com then we don't need to do any additional configuration
+	// for the client. It we're using Github Enterprise, then we need to manually
+	// set the base url for the API.
+	baseURL := &url.URL{
+		Scheme: "https",
+		Host:   "api.github.com",
+		Path:   "/",
+	}
+
+	if hostname != "github.com" {
+		baseURL.Host = hostname
+		baseURL.Path = "/api/v3/"
+	}
+
+	return baseURL
 }
--- a/server/events/vcs/github_credentials_test.go
+++ b/server/events/vcs/github_credentials_test.go
@@ -0,0 +1,46 @@
+package vcs_test
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/runatlantis/atlantis/server/events/vcs"
+	"github.com/runatlantis/atlantis/server/events/vcs/fixtures"
+	. "github.com/runatlantis/atlantis/testing"
+)
+
+func TestGithubClient_AppAuthentication(t *testing.T) {
+	defer disableSSLVerification()()
+	testServer, err := fixtures.GithubAppTestServer(t)
+	Ok(t, err)
+
+	anonCreds := &vcs.GithubAnonymousCredentials{}
+	anonClient, err := vcs.NewGithubClient(testServer, anonCreds)
+	Ok(t, err)
+	tempSecrets, err := anonClient.ExchangeCode("good-code")
+	Ok(t, err)
+
+	tmpDir, cleanup := DirStructure(t, map[string]interface{}{
+		"key.pem": tempSecrets.Key,
+	})
+	defer cleanup()
+	keyPath := fmt.Sprintf("%v/key.pem", tmpDir)
+
+	appCreds := &vcs.GithubAppCredentials{
+		AppID:    tempSecrets.ID,
+		KeyPath:  keyPath,
+		Hostname: testServer,
+	}
+	_, err = vcs.NewGithubClient(testServer, appCreds)
+	Ok(t, err)
+
+	token, err := appCreds.GetToken()
+	Ok(t, err)
+
+	newToken, err := appCreds.GetToken()
+	Ok(t, err)
+
+	if token != newToken {
+		t.Errorf("app token was not cached")
+	}
+}
--- a/server/events/working_dir.go
+++ b/server/events/working_dir.go
@@ -14,7 +14,6 @@
 package events

 import (
-	"context"
 	"fmt"
 	"os"
 	"os/exec"
@@ -22,7 +21,6 @@ import (
 	"strconv"
 	"strings"

-	"github.com/bradleyfalzon/ghinstallation"
 	"github.com/mitchellh/go-homedir"
 	"github.com/pkg/errors"
 	"github.com/runatlantis/atlantis/server/events/models"
@@ -297,17 +295,14 @@ type GithubAppWorkingDir struct {
 	GithubHostname string
 }

+// Clone writes a fresh token for Github App authentication
 func (g *GithubAppWorkingDir) Clone(log *logging.SimpleLogger, baseRepo models.Repo, headRepo models.Repo, p models.PullRequest, workspace string) (string, bool, error) {

 	log.Info("Refreshing git tokens for Github App")

-	client, err := g.Credentials.Client(g.GithubHostname)
+	token, err := g.Credentials.GetToken()
 	if err != nil {
-		return "", false, err
-	}
-	token, err := client.Transport.(*ghinstallation.Transport).Token(context.Background())
-	if err != nil {
-		return "", false, err
+		return "", false, errors.Wrap(err, "getting github token")
 	}

 	home, err := homedir.Dir()
--- a/server/events/working_dir_test.go
+++ b/server/events/working_dir_test.go
@@ -1,16 +1,31 @@
 package events_test

 import (
+	"crypto/tls"
 	"fmt"
+	"net/http"
 	"os"
 	"path/filepath"
 	"testing"

 	"github.com/runatlantis/atlantis/server/events"
 	"github.com/runatlantis/atlantis/server/events/models"
+	"github.com/runatlantis/atlantis/server/events/vcs"
+	"github.com/runatlantis/atlantis/server/events/vcs/fixtures"
 	. "github.com/runatlantis/atlantis/testing"
 )

+// disableSSLVerification disables ssl verification for the global http client
+// and returns a function to be called in a defer that will re-enable it.
+func disableSSLVerification() func() {
+	orig := http.DefaultTransport.(*http.Transport).TLSClientConfig
+	// nolint: gosec
+	http.DefaultTransport.(*http.Transport).TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
+	return func() {
+		http.DefaultTransport.(*http.Transport).TLSClientConfig = orig
+	}
+}
+
 // Test that if we don't have any existing files, we check out the repo.
 func TestClone_NoneExisting(t *testing.T) {
 	// Initialize the git repo.
@@ -37,6 +52,50 @@ func TestClone_NoneExisting(t *testing.T) {
 	Equals(t, expCommit, actCommit)
 }

+// Test that if we don't have any existing files, we check out the repo.
+func TestClone_GithubAppNoneExisting(t *testing.T) {
+	// Initialize the git repo.
+	repoDir, cleanup := initRepo(t)
+	defer cleanup()
+	expCommit := runCmd(t, repoDir, "git", "rev-parse", "HEAD")
+
+	dataDir, cleanup2 := TempDir(t)
+	defer cleanup2()
+
+	wd := &events.FileWorkspace{
+		DataDir:                     dataDir,
+		CheckoutMerge:               false,
+		TestingOverrideHeadCloneURL: fmt.Sprintf("file://%s", repoDir),
+	}
+
+	tmpDir, cleanup3 := DirStructure(t, map[string]interface{}{
+		"key.pem": fixtures.GithubPrivateKey,
+	})
+	defer cleanup3()
+
+	defer disableSSLVerification()()
+	testServer, err := fixtures.GithubAppTestServer(t)
+	Ok(t, err)
+
+	gwd := &events.GithubAppWorkingDir{
+		WorkingDir: wd,
+		Credentials: &vcs.GithubAppCredentials{
+			KeyPath:  fmt.Sprintf("%v/key.pem", tmpDir),
+			AppID:    1,
+			Hostname: testServer,
+		},
+	}
+
+	cloneDir, _, err := gwd.Clone(nil, models.Repo{}, models.Repo{}, models.PullRequest{
+		HeadBranch: "branch",
+	}, "default")
+	Ok(t, err)
+
+	// Use rev-parse to verify at correct commit.
+	actCommit := runCmd(t, cloneDir, "git", "rev-parse", "HEAD")
+	Equals(t, expCommit, actCommit)
+}
+
 // Test that if we don't have any existing files, we check out the repo
 // successfully when we're using the merge method.
 func TestClone_CheckoutMergeNoneExisting(t *testing.T) {
--- a/server/events_controller.go
+++ b/server/events_controller.go
@@ -19,7 +19,7 @@ import (
 	"net/http"
 	"strings"

-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 	"github.com/mcdafydd/go-azuredevops/azuredevops"
 	"github.com/microcosm-cc/bluemonday"
 	"github.com/pkg/errors"
--- a/server/events_controller_e2e_test.go
+++ b/server/events_controller_e2e_test.go
@@ -13,7 +13,7 @@ import (
 	"strings"
 	"testing"

-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 	"github.com/hashicorp/go-getter"
 	"github.com/hashicorp/go-version"
 	. "github.com/petergtz/pegomock"
--- a/server/github_app_controller.go
+++ b/server/github_app_controller.go
@@ -1,13 +1,12 @@
 package server

 import (
-	"context"
 	"encoding/json"
 	"fmt"
 	"net/http"
 	"net/url"

-	"github.com/google/go-github/v28/github"
+	"github.com/runatlantis/atlantis/server/events/vcs"
 	"github.com/runatlantis/atlantis/server/logging"
 )

@@ -54,27 +53,16 @@ func (g *GithubAppController) ExchangeCode(w http.ResponseWriter, r *http.Reques
 	}

 	g.Logger.Debug("Exchanging GitHub app code for app credentials")
-	tr := http.DefaultTransport
-	client := github.NewClient(&http.Client{Transport: tr})
-
-	ctx := context.Background()
-	app := &struct {
-		ID            int64  `json:"id"`
-		Key           string `json:"pem"`
-		WebhookSecret string `json:"webhook_secret"`
-		Name          string `json:"name"`
-	}{}
-	url := fmt.Sprintf("https://api.%s/app-manifests/%s/conversions", g.GithubHostname, code)
-	req, err := http.NewRequest("POST", url, nil)
-	req.Header.Add("Accept", "application/vnd.github.fury-preview+json")
+	creds := &vcs.GithubAnonymousCredentials{}
+	client, err := vcs.NewGithubClient(g.GithubHostname, creds)
 	if err != nil {
-		g.respond(w, logging.Error, http.StatusBadGateway, "Error creating http request to exchange token: %s", err)
+		g.respond(w, logging.Error, http.StatusInternalServerError, "Failed to exchange code for github app: %s", err)
 		return
 	}

-	_, err = client.Do(ctx, req, app)
+	app, err := client.ExchangeCode(code)
 	if err != nil {
-		g.respond(w, logging.Error, http.StatusBadGateway, "Error exchanging code for token: %s", err)
+		g.respond(w, logging.Error, http.StatusInternalServerError, "Failed to exchange code for github app: %s", err)
 		return
 	}

@@ -101,7 +89,7 @@ func (g *GithubAppController) New(w http.ResponseWriter, r *http.Request) {
 	}

 	manifest := &githubAppRequest{
-		Name:        "Atlantis",
+		Name:        fmt.Sprintf("Atlantis for %s", g.AtlantisURL.Hostname()),
 		Description: fmt.Sprintf("Terraform Pull Request Automation at %s", g.AtlantisURL),
 		URL:         g.AtlantisURL.String(),
 		RedirectURL: fmt.Sprintf("%s/github-app/exchange-code", g.AtlantisURL),
--- a/server/github_request_validator.go
+++ b/server/github_request_validator.go
@@ -19,7 +19,7 @@ import (
 	"io/ioutil"
 	"net/http"

-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 )

 //go:generate pegomock generate -m --use-experimental-model-gen --package mocks -o mocks/mock_github_request_validator.go GithubRequestValidator
--- a/server/server.go
+++ b/server/server.go
@@ -131,8 +131,9 @@ func NewServer(userConfig UserConfig, config Config) (*Server, error) {
 			}
 		} else if userConfig.GithubAppID != 0 {
 			githubCredentials = &vcs.GithubAppCredentials{
-				AppID:   userConfig.GithubAppID,
-				KeyPath: userConfig.GithubAppKey,
+				AppID:    userConfig.GithubAppID,
+				KeyPath:  userConfig.GithubAppKey,
+				Hostname: userConfig.GithubHostname,
 			}
 			githubAppEnabled = true
 		}
--- a/testdrive/github.go
+++ b/testdrive/github.go
@@ -18,7 +18,7 @@ import (
 	"strings"
 	"time"

-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 )

 var githubUsername string
--- a/testdrive/testdrive.go
+++ b/testdrive/testdrive.go
@@ -30,7 +30,7 @@ import (
 	"time"

 	"github.com/briandowns/spinner"
-	"github.com/google/go-github/v28/github"
+	"github.com/google/go-github/v31/github"
 	"github.com/mitchellh/colorstring"
 	"github.com/pkg/errors"
 )
--- a/vendor/github.com/google/go-github/AUTHORS
+++ b/vendor/github.com/google/go-github/AUTHORS
@@ -0,0 +1,174 @@
+# This is the official list of go-github authors for copyright purposes.
+#
+# This does not necessarily list everyone who has contributed code, since in
+# some cases, their employer may be the copyright holder. To see the full list
+# of contributors, see the revision history in source control or
+# https://github.com/google/go-github/graphs/contributors.
+#
+# Authors who wish to be recognized in this file should add themselves (or
+# their employer, as appropriate).
+
+178inaba <masahiro.furudate@gmail.com>
+Abhinav Gupta <mail@abhinavg.net>
+Ahmed Hagy <a.akram93@gmail.com>
+Ainsley Chong <ainsley.chong@gmail.com>
+Akeda Bagus <akeda@x-team.com>
+Alec Thomas <alec@swapoff.org>
+Aleks Clark <aleks.clark@gmail.com>
+Alex Bramley <a.bramley@gmail.com>
+Alexander Harkness <me@bearbin.net>
+Allen Sun <shlallen1990@gmail.com>
+Amey Sakhadeo <me@ameyms.com>
+Andreas Garnæs <https://github.com/andreas>
+Andrew Ryabchun <aryabchun@mail.ua>
+Andy Hume <andyhume@gmail.com>
+Andy Lindeman <andy@lindeman.io>
+Anshuman Bhartiya <anshuman.bhartiya@gmail.com>
+Antoine Pelisse <apelisse@gmail.com>
+Anubha Kushwaha <anubha_bt2k14@dtu.ac.in>
+Aravind <aravindkp@outlook.in>
+Arıl Bozoluk <arilbozoluk@hotmail.com>
+Austin Dizzy <dizzy@wow.com>
+Beshr Kayali <beshrkayali@gmail.com>
+Beyang Liu <beyang.liu@gmail.com>
+Billy Lynch <wlynch92@gmail.com>
+Björn Häuser <b.haeuser@rebuy.de>
+Brad Harris <bmharris@gmail.com>
+Bradley Falzon <brad@teambrad.net>
+Brian Egizi <brian@mojotech.com>
+Bryan Boreham <bryan@weave.works>
+Cami Diez <diezcami@gmail.com>
+Carlos Alexandro Becker <caarlos0@gmail.com>
+chandresh-pancholi <chandreshpancholi007@gmail.com>
+Charles Fenwick Elliott <Charles@FenwickElliott.io>
+Charlie Yan <charlieyan08@gmail.com>
+Chris King <chriskingnet@gmail.com>
+Chris Roche <chris@vsco.co>
+Chris Schaefer <chris@dtzq.com>
+Christoph Sassenberg <defsprite@gmail.com>
+Colin Misare <github.com/cmisare>
+Craig Peterson <cpeterson@stackoverflow.com>
+Cristian Maglie <c.maglie@bug.st>
+Daehyeok Mun <daehyeok@gmail.com>
+Daniel Leavitt <daniel.leavitt@gmail.com>
+Dave Du Cros <davidducros@gmail.com>
+Dave Henderson <dhenderson@gmail.com>
+David Deng <daviddengcn@gmail.com>
+Dennis Webb <dennis@bluesentryit.com>
+Diego Lapiduz <diego.lapiduz@cfpb.gov>
+Dmitri Shuralyov <shurcooL@gmail.com>
+dmnlk <seikima2demon@gmail.com>
+Don Petersen <don@donpetersen.net>
+Doug Turner <doug.turner@gmail.com>
+Drew Fradette <drew.fradette@gmail.com>
+Eli Uriegas <seemethere101@gmail.com>
+Elliott Beach <elliott2.71828@gmail.com>
+erwinvaneyk <erwinvaneyk@gmail.com>
+Fabrice <fabrice.vaillant@student.ecp.fr>
+Filippo Valsorda <hi@filippo.io>
+Florian Forster <ff@octo.it>
+Francesc Gil <xescugil@gmail.com>
+Francis <hello@francismakes.com>
+Fredrik Jönsson <fredrik.jonsson@izettle.com>
+Garrett Squire <garrettsquire@gmail.com>
+Georgy Buranov <gburanov@gmail.com>
+Gnahz <p@oath.pl>
+Google Inc.
+griffin_stewie <panterathefamilyguy@gmail.com>
+Guz Alexander <kalimatas@gmail.com>
+Hanno Hecker <hanno.hecker@zalando.de>
+Hari haran <hariharan.uno@gmail.com>
+haya14busa <hayabusa1419@gmail.com>
+Huy Tr <kingbazoka@gmail.com>
+huydx <doxuanhuy@gmail.com>
+i2bskn <i2bskn@gmail.com>
+Isao Jonas <isao.jonas@gmail.com>
+isqua <isqua@isqua.ru>
+Jameel Haffejee <RC1140@republiccommandos.co.za>
+Jan Kosecki <jan.kosecki91@gmail.com>
+Jeremy Morris <jeremylevanmorris@gmail.com>
+Jihoon Chung <j.c@navercorp.com>
+Jimmi Dyson <jimmidyson@gmail.com>
+Joe Tsai <joetsai@digital-static.net>
+John Barton <jrbarton@gmail.com>
+John Engelman <john.r.engelman@gmail.com>
+jpbelanger-mtl <jp.belanger@gmail.com>
+Juan Basso <jrbasso@gmail.com>
+Julien Rostand <jrostand@users.noreply.github.com>
+Justin Abrahms <justin@abrah.ms>
+jzhoucliqr <jzhou@cliqr.com>
+Katrina Owen <kytrinyx@github.com>
+Keita Urashima <ursm@ursm.jp>
+Kevin Burke <kev@inburke.com>
+Konrad Malawski <konrad.malawski@project13.pl>
+Kookheon Kwon <kucuny@gmail.com>
+Krzysztof Kowalczyk <kkowalczyk@gmail.com>
+Kshitij Saraogi <KshitijSaraogi@gmail.com>
+kyokomi <kyoko1220adword@gmail.com>
+Lucas Alcantara <lucasalcantaraf@gmail.com>
+Luke Evers <me@lukevers.com>
+Luke Kysow <lkysow@gmail.com>
+Luke Roberts <email@luke-roberts.co.uk>
+Luke Young <luke@hydrantlabs.org>
+Maksim Zhylinski <uzzable@gmail.com>
+Martin-Louis Bright <mlbright@gmail.com>
+Mat Geist <matgeist@gmail.com>
+Matt Brender <mjbrender@gmail.com>
+Matt Landis <landis.matt@gmail.com>
+Maxime Bury <maxime.bury@gmail.com>
+Michael Tiller <michael.tiller@gmail.com>
+Michał Glapa <michal.glapa@gmail.com>
+Nathan VanBenschoten <nvanbenschoten@gmail.com>
+Neil O'Toole <neilotoole@apache.org>
+Nick Miyake <nmiyake@palantir.com>
+Nick Spragg <nick.spragg@bbc.co.uk>
+Nikhita Raghunath <nikitaraghunath@gmail.com>
+Noah Zoschke <noah+sso2@convox.com>
+ns-cweber <cweber@narrativescience.com>
+Ondřej Kupka <ondra.cap@gmail.com>
+Panagiotis Moustafellos <pmoust@gmail.com>
+Parker Moore <parkrmoore@gmail.com>
+Pavel Shtanko <pavel.shtanko@gmail.com>
+Petr Shevtsov <petr.shevtsov@gmail.com>
+Pierre Carrier <pierre@meteor.com>
+Piotr Zurek <p.zurek@gmail.com>
+Quinn Slack <qslack@qslack.com>
+Rackspace US, Inc.
+Rajendra arora <rajendraarora16@yahoo.com>
+RaviTeja Pothana <ravi-teja@live.com>
+rc1140 <jameel@republiccommandos.co.za>
+Red Hat, Inc.
+Rob Figueiredo <robfig@yext.com>
+Ronak Jain <ronakjain@outlook.in>
+Ruben Vereecken <rubenvereecken@gmail.com>
+Ryan Lower <rpjlower@gmail.com>
+Sahil Dua <sahildua2305@gmail.com>
+saisi <saisi@users.noreply.github.com>
+Sam Minnée <sam@silverstripe.com>
+Sander van Harmelen <svanharmelen@schubergphilis.com>
+Sanket Payghan <sanket.payghan8@gmail.com>
+Sarasa Kisaragi <lingsamuelgrace@gmail.com>
+Sean Wang <sean@decrypted.org>
+Sebastian Mandrean <sebastian.mandrean@gmail.com>
+Sebastian Mæland Pedersen <sem.pedersen@stud.uis.no>
+Sevki <s@sevki.org>
+Shawn Catanzarite <me@shawncatz.com>
+Shawn Smith <shawnpsmith@gmail.com>
+sona-tar <sona.zip@gmail.com>
+SoundCloud, Ltd.
+Stian Eikeland <stian@eikeland.se>
+Thomas Bruyelle <thomas.bruyelle@gmail.com>
+Timothée Peignier <timothee.peignier@tryphon.org>
+Trey Tacon <ttacon@gmail.com>
+ttacon <ttacon@gmail.com>
+Varadarajan Aravamudhan <varadaraajan@gmail.com>
+Victor Castell <victor@victorcastell.com>
+Victor Vrantchan <vrancean+github@gmail.com>
+Vlad Ungureanu <vladu@palantir.com>
+Will Maier <wcmaier@gmail.com>
+William Bailey <mail@williambailey.org.uk>
+Yann Malet <yann.malet@gmail.com>
+Yannick Utard <yannickutard@gmail.com>
+Yicheng Qin <qycqycqycqycqyc@gmail.com>
+Yumikiyo Osanai <yumios.art@gmail.com>
+Zach Latta <zach@zachlatta.com>
--- a/vendor/github.com/google/go-github/v28/LICENSE
+++ b/vendor/github.com/google/go-github/v28/LICENSE
--- a/vendor/github.com/google/go-github/v28/github/activity.go
+++ b/vendor/github.com/google/go-github/v28/github/activity.go
--- a/vendor/github.com/google/go-github/github/activity_events.go
+++ b/vendor/github.com/google/go-github/github/activity_events.go
@@ -0,0 +1,328 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"time"
+)
+
+// Event represents a GitHub event.
+type Event struct {
+	Type       *string          `json:"type,omitempty"`
+	Public     *bool            `json:"public,omitempty"`
+	RawPayload *json.RawMessage `json:"payload,omitempty"`
+	Repo       *Repository      `json:"repo,omitempty"`
+	Actor      *User            `json:"actor,omitempty"`
+	Org        *Organization    `json:"org,omitempty"`
+	CreatedAt  *time.Time       `json:"created_at,omitempty"`
+	ID         *string          `json:"id,omitempty"`
+}
+
+func (e Event) String() string {
+	return Stringify(e)
+}
+
+// ParsePayload parses the event payload. For recognized event types,
+// a value of the corresponding struct type will be returned.
+func (e *Event) ParsePayload() (payload interface{}, err error) {
+	switch *e.Type {
+	case "CheckRunEvent":
+		payload = &CheckRunEvent{}
+	case "CheckSuiteEvent":
+		payload = &CheckSuiteEvent{}
+	case "CommitCommentEvent":
+		payload = &CommitCommentEvent{}
+	case "CreateEvent":
+		payload = &CreateEvent{}
+	case "DeleteEvent":
+		payload = &DeleteEvent{}
+	case "DeploymentEvent":
+		payload = &DeploymentEvent{}
+	case "DeploymentStatusEvent":
+		payload = &DeploymentStatusEvent{}
+	case "ForkEvent":
+		payload = &ForkEvent{}
+	case "GollumEvent":
+		payload = &GollumEvent{}
+	case "InstallationEvent":
+		payload = &InstallationEvent{}
+	case "InstallationRepositoriesEvent":
+		payload = &InstallationRepositoriesEvent{}
+	case "IssueCommentEvent":
+		payload = &IssueCommentEvent{}
+	case "IssuesEvent":
+		payload = &IssuesEvent{}
+	case "LabelEvent":
+		payload = &LabelEvent{}
+	case "MarketplacePurchaseEvent":
+		payload = &MarketplacePurchaseEvent{}
+	case "MemberEvent":
+		payload = &MemberEvent{}
+	case "MembershipEvent":
+		payload = &MembershipEvent{}
+	case "MilestoneEvent":
+		payload = &MilestoneEvent{}
+	case "OrganizationEvent":
+		payload = &OrganizationEvent{}
+	case "OrgBlockEvent":
+		payload = &OrgBlockEvent{}
+	case "PageBuildEvent":
+		payload = &PageBuildEvent{}
+	case "PingEvent":
+		payload = &PingEvent{}
+	case "ProjectEvent":
+		payload = &ProjectEvent{}
+	case "ProjectCardEvent":
+		payload = &ProjectCardEvent{}
+	case "ProjectColumnEvent":
+		payload = &ProjectColumnEvent{}
+	case "PublicEvent":
+		payload = &PublicEvent{}
+	case "PullRequestEvent":
+		payload = &PullRequestEvent{}
+	case "PullRequestReviewEvent":
+		payload = &PullRequestReviewEvent{}
+	case "PullRequestReviewCommentEvent":
+		payload = &PullRequestReviewCommentEvent{}
+	case "PushEvent":
+		payload = &PushEvent{}
+	case "ReleaseEvent":
+		payload = &ReleaseEvent{}
+	case "RepositoryEvent":
+		payload = &RepositoryEvent{}
+	case "StatusEvent":
+		payload = &StatusEvent{}
+	case "TeamEvent":
+		payload = &TeamEvent{}
+	case "TeamAddEvent":
+		payload = &TeamAddEvent{}
+	case "WatchEvent":
+		payload = &WatchEvent{}
+	}
+	err = json.Unmarshal(*e.RawPayload, &payload)
+	return payload, err
+}
+
+// Payload returns the parsed event payload. For recognized event types,
+// a value of the corresponding struct type will be returned.
+//
+// Deprecated: Use ParsePayload instead, which returns an error
+// rather than panics if JSON unmarshaling raw payload fails.
+func (e *Event) Payload() (payload interface{}) {
+	var err error
+	payload, err = e.ParsePayload()
+	if err != nil {
+		panic(err)
+	}
+	return payload
+}
+
+// ListEvents drinks from the firehose of all public events across GitHub.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/#list-public-events
+func (s *ActivityService) ListEvents(ctx context.Context, opt *ListOptions) ([]*Event, *Response, error) {
+	u, err := addOptions("events", opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var events []*Event
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
+
+// ListRepositoryEvents lists events for a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/#list-repository-events
+func (s *ActivityService) ListRepositoryEvents(ctx context.Context, owner, repo string, opt *ListOptions) ([]*Event, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/events", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var events []*Event
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
+
+// ListIssueEventsForRepository lists issue events for a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/#list-issue-events-for-a-repository
+func (s *ActivityService) ListIssueEventsForRepository(ctx context.Context, owner, repo string, opt *ListOptions) ([]*IssueEvent, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/issues/events", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var events []*IssueEvent
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
+
+// ListEventsForRepoNetwork lists public events for a network of repositories.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/#list-public-events-for-a-network-of-repositories
+func (s *ActivityService) ListEventsForRepoNetwork(ctx context.Context, owner, repo string, opt *ListOptions) ([]*Event, *Response, error) {
+	u := fmt.Sprintf("networks/%v/%v/events", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var events []*Event
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
+
+// ListEventsForOrganization lists public events for an organization.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/#list-public-events-for-an-organization
+func (s *ActivityService) ListEventsForOrganization(ctx context.Context, org string, opt *ListOptions) ([]*Event, *Response, error) {
+	u := fmt.Sprintf("orgs/%v/events", org)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var events []*Event
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
+
+// ListEventsPerformedByUser lists the events performed by a user. If publicOnly is
+// true, only public events will be returned.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/#list-events-performed-by-a-user
+func (s *ActivityService) ListEventsPerformedByUser(ctx context.Context, user string, publicOnly bool, opt *ListOptions) ([]*Event, *Response, error) {
+	var u string
+	if publicOnly {
+		u = fmt.Sprintf("users/%v/events/public", user)
+	} else {
+		u = fmt.Sprintf("users/%v/events", user)
+	}
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var events []*Event
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
+
+// ListEventsReceivedByUser lists the events received by a user. If publicOnly is
+// true, only public events will be returned.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/#list-events-that-a-user-has-received
+func (s *ActivityService) ListEventsReceivedByUser(ctx context.Context, user string, publicOnly bool, opt *ListOptions) ([]*Event, *Response, error) {
+	var u string
+	if publicOnly {
+		u = fmt.Sprintf("users/%v/received_events/public", user)
+	} else {
+		u = fmt.Sprintf("users/%v/received_events", user)
+	}
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var events []*Event
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
+
+// ListUserEventsForOrganization provides the user’s organization dashboard. You
+// must be authenticated as the user to view this.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/#list-events-for-an-organization
+func (s *ActivityService) ListUserEventsForOrganization(ctx context.Context, org, user string, opt *ListOptions) ([]*Event, *Response, error) {
+	u := fmt.Sprintf("users/%v/events/orgs/%v", user, org)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var events []*Event
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
--- a/vendor/github.com/google/go-github/v28/github/activity_notifications.go
+++ b/vendor/github.com/google/go-github/v28/github/activity_notifications.go
--- a/vendor/github.com/google/go-github/v28/github/activity_star.go
+++ b/vendor/github.com/google/go-github/v28/github/activity_star.go
@@ -8,7 +8,6 @@ package github
 import (
 	"context"
 	"fmt"
-	"strings"
 )

 // StarredRepository is returned by ListStarred.
@@ -85,9 +84,8 @@ func (s *ActivityService) ListStarred(ctx context.Context, user string, opt *Act
 		return nil, nil, err
 	}

-	// TODO: remove custom Accept header when APIs fully launch
-	acceptHeaders := []string{mediaTypeStarringPreview, mediaTypeTopicsPreview}
-	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))
+	// TODO: remove custom Accept header when this API fully launches
+	req.Header.Set("Accept", mediaTypeStarringPreview)

 	var repos []*StarredRepository
 	resp, err := s.client.Do(ctx, req, &repos)
--- a/vendor/github.com/google/go-github/v28/github/activity_watching.go
+++ b/vendor/github.com/google/go-github/v28/github/activity_watching.go
--- a/vendor/github.com/google/go-github/v28/github/admin.go
+++ b/vendor/github.com/google/go-github/v28/github/admin.go
--- a/vendor/github.com/google/go-github/github/admin_stats.go
+++ b/vendor/github.com/google/go-github/github/admin_stats.go
@@ -0,0 +1,171 @@
+// Copyright 2017 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+)
+
+// AdminStats represents a variety of stats of a Github Enterprise
+// installation.
+type AdminStats struct {
+	Issues     *IssueStats     `json:"issues,omitempty"`
+	Hooks      *HookStats      `json:"hooks,omitempty"`
+	Milestones *MilestoneStats `json:"milestones,omitempty"`
+	Orgs       *OrgStats       `json:"orgs,omitempty"`
+	Comments   *CommentStats   `json:"comments,omitempty"`
+	Pages      *PageStats      `json:"pages,omitempty"`
+	Users      *UserStats      `json:"users,omitempty"`
+	Gists      *GistStats      `json:"gists,omitempty"`
+	Pulls      *PullStats      `json:"pulls,omitempty"`
+	Repos      *RepoStats      `json:"repos,omitempty"`
+}
+
+func (s AdminStats) String() string {
+	return Stringify(s)
+}
+
+// IssueStats represents the number of total, open and closed issues.
+type IssueStats struct {
+	TotalIssues  *int `json:"total_issues,omitempty"`
+	OpenIssues   *int `json:"open_issues,omitempty"`
+	ClosedIssues *int `json:"closed_issues,omitempty"`
+}
+
+func (s IssueStats) String() string {
+	return Stringify(s)
+}
+
+// HookStats represents the number of total, active and inactive hooks.
+type HookStats struct {
+	TotalHooks    *int `json:"total_hooks,omitempty"`
+	ActiveHooks   *int `json:"active_hooks,omitempty"`
+	InactiveHooks *int `json:"inactive_hooks,omitempty"`
+}
+
+func (s HookStats) String() string {
+	return Stringify(s)
+}
+
+// MilestoneStats represents the number of total, open and close milestones.
+type MilestoneStats struct {
+	TotalMilestones  *int `json:"total_milestones,omitempty"`
+	OpenMilestones   *int `json:"open_milestones,omitempty"`
+	ClosedMilestones *int `json:"closed_milestones,omitempty"`
+}
+
+func (s MilestoneStats) String() string {
+	return Stringify(s)
+}
+
+// OrgStats represents the number of total, disabled organizations and the team
+// and team member count.
+type OrgStats struct {
+	TotalOrgs        *int `json:"total_orgs,omitempty"`
+	DisabledOrgs     *int `json:"disabled_orgs,omitempty"`
+	TotalTeams       *int `json:"total_teams,omitempty"`
+	TotalTeamMembers *int `json:"total_team_members,omitempty"`
+}
+
+func (s OrgStats) String() string {
+	return Stringify(s)
+}
+
+// CommentStats represents the number of total comments on commits, gists, issues
+// and pull requests.
+type CommentStats struct {
+	TotalCommitComments      *int `json:"total_commit_comments,omitempty"`
+	TotalGistComments        *int `json:"total_gist_comments,omitempty"`
+	TotalIssueComments       *int `json:"total_issue_comments,omitempty"`
+	TotalPullRequestComments *int `json:"total_pull_request_comments,omitempty"`
+}
+
+func (s CommentStats) String() string {
+	return Stringify(s)
+}
+
+// PageStats represents the total number of github pages.
+type PageStats struct {
+	TotalPages *int `json:"total_pages,omitempty"`
+}
+
+func (s PageStats) String() string {
+	return Stringify(s)
+}
+
+// UserStats represents the number of total, admin and suspended users.
+type UserStats struct {
+	TotalUsers     *int `json:"total_users,omitempty"`
+	AdminUsers     *int `json:"admin_users,omitempty"`
+	SuspendedUsers *int `json:"suspended_users,omitempty"`
+}
+
+func (s UserStats) String() string {
+	return Stringify(s)
+}
+
+// GistStats represents the number of total, private and public gists.
+type GistStats struct {
+	TotalGists   *int `json:"total_gists,omitempty"`
+	PrivateGists *int `json:"private_gists,omitempty"`
+	PublicGists  *int `json:"public_gists,omitempty"`
+}
+
+func (s GistStats) String() string {
+	return Stringify(s)
+}
+
+// PullStats represents the number of total, merged, mergable and unmergeable
+// pull-requests.
+type PullStats struct {
+	TotalPulls      *int `json:"total_pulls,omitempty"`
+	MergedPulls     *int `json:"merged_pulls,omitempty"`
+	MergablePulls   *int `json:"mergeable_pulls,omitempty"`
+	UnmergablePulls *int `json:"unmergeable_pulls,omitempty"`
+}
+
+func (s PullStats) String() string {
+	return Stringify(s)
+}
+
+// RepoStats represents the number of total, root, fork, organization repositories
+// together with the total number of pushes and wikis.
+type RepoStats struct {
+	TotalRepos  *int `json:"total_repos,omitempty"`
+	RootRepos   *int `json:"root_repos,omitempty"`
+	ForkRepos   *int `json:"fork_repos,omitempty"`
+	OrgRepos    *int `json:"org_repos,omitempty"`
+	TotalPushes *int `json:"total_pushes,omitempty"`
+	TotalWikis  *int `json:"total_wikis,omitempty"`
+}
+
+func (s RepoStats) String() string {
+	return Stringify(s)
+}
+
+// GetAdminStats returns a variety of metrics about a Github Enterprise
+// installation.
+//
+// Please note that this is only available to site administrators,
+// otherwise it will error with a 404 not found (instead of 401 or 403).
+//
+// GitHub API docs: https://developer.github.com/v3/enterprise-admin/admin_stats/
+func (s *AdminService) GetAdminStats(ctx context.Context) (*AdminStats, *Response, error) {
+	u := fmt.Sprintf("enterprise/stats/all")
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	m := new(AdminStats)
+	resp, err := s.client.Do(ctx, req, m)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return m, resp, nil
+}
--- a/vendor/github.com/google/go-github/github/apps.go
+++ b/vendor/github.com/google/go-github/github/apps.go
@@ -0,0 +1,223 @@
+// Copyright 2016 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+	"time"
+)
+
+// AppsService provides access to the installation related functions
+// in the GitHub API.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/
+type AppsService service
+
+// App represents a GitHub App.
+type App struct {
+	ID          *int64     `json:"id,omitempty"`
+	NodeID      *string    `json:"node_id,omitempty"`
+	Owner       *User      `json:"owner,omitempty"`
+	Name        *string    `json:"name,omitempty"`
+	Description *string    `json:"description,omitempty"`
+	ExternalURL *string    `json:"external_url,omitempty"`
+	HTMLURL     *string    `json:"html_url,omitempty"`
+	CreatedAt   *time.Time `json:"created_at,omitempty"`
+	UpdatedAt   *time.Time `json:"updated_at,omitempty"`
+}
+
+// InstallationToken represents an installation token.
+type InstallationToken struct {
+	Token     *string    `json:"token,omitempty"`
+	ExpiresAt *time.Time `json:"expires_at,omitempty"`
+}
+
+// InstallationPermissions lists the permissions for metadata, contents, issues and single file for an installation.
+type InstallationPermissions struct {
+	Metadata   *string `json:"metadata,omitempty"`
+	Contents   *string `json:"contents,omitempty"`
+	Issues     *string `json:"issues,omitempty"`
+	SingleFile *string `json:"single_file,omitempty"`
+}
+
+// Installation represents a GitHub Apps installation.
+type Installation struct {
+	ID                  *int64                   `json:"id,omitempty"`
+	AppID               *int64                   `json:"app_id,omitempty"`
+	TargetID            *int64                   `json:"target_id,omitempty"`
+	Account             *User                    `json:"account,omitempty"`
+	AccessTokensURL     *string                  `json:"access_tokens_url,omitempty"`
+	RepositoriesURL     *string                  `json:"repositories_url,omitempty"`
+	HTMLURL             *string                  `json:"html_url,omitempty"`
+	TargetType          *string                  `json:"target_type,omitempty"`
+	SingleFileName      *string                  `json:"single_file_name,omitempty"`
+	RepositorySelection *string                  `json:"repository_selection,omitempty"`
+	Events              []string                 `json:"events,omitempty"`
+	Permissions         *InstallationPermissions `json:"permissions,omitempty"`
+	CreatedAt           *Timestamp               `json:"created_at,omitempty"`
+	UpdatedAt           *Timestamp               `json:"updated_at,omitempty"`
+}
+
+func (i Installation) String() string {
+	return Stringify(i)
+}
+
+// Get a single GitHub App. Passing the empty string will get
+// the authenticated GitHub App.
+//
+// Note: appSlug is just the URL-friendly name of your GitHub App.
+// You can find this on the settings page for your GitHub App
+// (e.g., https://github.com/settings/apps/:app_slug).
+//
+// GitHub API docs: https://developer.github.com/v3/apps/#get-a-single-github-app
+func (s *AppsService) Get(ctx context.Context, appSlug string) (*App, *Response, error) {
+	var u string
+	if appSlug != "" {
+		u = fmt.Sprintf("apps/%v", appSlug)
+	} else {
+		u = "app"
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeIntegrationPreview)
+
+	app := new(App)
+	resp, err := s.client.Do(ctx, req, app)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return app, resp, nil
+}
+
+// ListInstallations lists the installations that the current GitHub App has.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/#find-installations
+func (s *AppsService) ListInstallations(ctx context.Context, opt *ListOptions) ([]*Installation, *Response, error) {
+	u, err := addOptions("app/installations", opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeIntegrationPreview)
+
+	var i []*Installation
+	resp, err := s.client.Do(ctx, req, &i)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return i, resp, nil
+}
+
+// GetInstallation returns the specified installation.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/#get-a-single-installation
+func (s *AppsService) GetInstallation(ctx context.Context, id int64) (*Installation, *Response, error) {
+	return s.getInstallation(ctx, fmt.Sprintf("app/installations/%v", id))
+}
+
+// ListUserInstallations lists installations that are accessible to the authenticated user.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/#list-installations-for-user
+func (s *AppsService) ListUserInstallations(ctx context.Context, opt *ListOptions) ([]*Installation, *Response, error) {
+	u, err := addOptions("user/installations", opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeIntegrationPreview)
+
+	var i struct {
+		Installations []*Installation `json:"installations"`
+	}
+	resp, err := s.client.Do(ctx, req, &i)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return i.Installations, resp, nil
+}
+
+// CreateInstallationToken creates a new installation token.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/#create-a-new-installation-token
+func (s *AppsService) CreateInstallationToken(ctx context.Context, id int64) (*InstallationToken, *Response, error) {
+	u := fmt.Sprintf("installations/%v/access_tokens", id)
+
+	req, err := s.client.NewRequest("POST", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeIntegrationPreview)
+
+	t := new(InstallationToken)
+	resp, err := s.client.Do(ctx, req, t)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return t, resp, nil
+}
+
+// FindOrganizationInstallation finds the organization's installation information.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/#find-organization-installation
+func (s *AppsService) FindOrganizationInstallation(ctx context.Context, org string) (*Installation, *Response, error) {
+	return s.getInstallation(ctx, fmt.Sprintf("orgs/%v/installation", org))
+}
+
+// FindRepositoryInstallation finds the repository's installation information.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/#find-repository-installation
+func (s *AppsService) FindRepositoryInstallation(ctx context.Context, owner, repo string) (*Installation, *Response, error) {
+	return s.getInstallation(ctx, fmt.Sprintf("repos/%v/%v/installation", owner, repo))
+}
+
+// FindUserInstallation finds the user's installation information.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/#find-repository-installation
+func (s *AppsService) FindUserInstallation(ctx context.Context, user string) (*Installation, *Response, error) {
+	return s.getInstallation(ctx, fmt.Sprintf("users/%v/installation", user))
+}
+
+func (s *AppsService) getInstallation(ctx context.Context, url string) (*Installation, *Response, error) {
+	req, err := s.client.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeIntegrationPreview)
+
+	i := new(Installation)
+	resp, err := s.client.Do(ctx, req, i)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return i, resp, nil
+}
--- a/vendor/github.com/google/go-github/v28/github/apps_installation.go
+++ b/vendor/github.com/google/go-github/v28/github/apps_installation.go
@@ -72,12 +72,11 @@ func (s *AppsService) ListUserRepos(ctx context.Context, id int64, opt *ListOpti
 //
 // GitHub API docs: https://developer.github.com/v3/apps/installations/#add-repository-to-installation
 func (s *AppsService) AddRepository(ctx context.Context, instID, repoID int64) (*Repository, *Response, error) {
-	u := fmt.Sprintf("user/installations/%v/repositories/%v", instID, repoID)
+	u := fmt.Sprintf("apps/installations/%v/repositories/%v", instID, repoID)
 	req, err := s.client.NewRequest("PUT", u, nil)
 	if err != nil {
 		return nil, nil, err
 	}
-	req.Header.Set("Accept", mediaTypeIntegrationPreview)

 	r := new(Repository)
 	resp, err := s.client.Do(ctx, req, r)
@@ -92,12 +91,11 @@ func (s *AppsService) AddRepository(ctx context.Context, instID, repoID int64) (
 //
 // GitHub docs: https://developer.github.com/v3/apps/installations/#remove-repository-from-installation
 func (s *AppsService) RemoveRepository(ctx context.Context, instID, repoID int64) (*Response, error) {
-	u := fmt.Sprintf("user/installations/%v/repositories/%v", instID, repoID)
+	u := fmt.Sprintf("apps/installations/%v/repositories/%v", instID, repoID)
 	req, err := s.client.NewRequest("DELETE", u, nil)
 	if err != nil {
 		return nil, err
 	}
-	req.Header.Set("Accept", mediaTypeIntegrationPreview)

 	return s.client.Do(ctx, req, nil)
 }
--- a/vendor/github.com/google/go-github/github/apps_marketplace.go
+++ b/vendor/github.com/google/go-github/github/apps_marketplace.go
@@ -0,0 +1,168 @@
+// Copyright 2017 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+)
+
+// MarketplaceService handles communication with the marketplace related
+// methods of the GitHub API.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/marketplace/
+type MarketplaceService struct {
+	client *Client
+	// Stubbed controls whether endpoints that return stubbed data are used
+	// instead of production endpoints. Stubbed data is fake data that's useful
+	// for testing your GitHub Apps. Stubbed data is hard-coded and will not
+	// change based on actual subscriptions.
+	//
+	// GitHub API docs: https://developer.github.com/v3/apps/marketplace/
+	Stubbed bool
+}
+
+// MarketplacePlan represents a GitHub Apps Marketplace Listing Plan.
+type MarketplacePlan struct {
+	URL                 *string   `json:"url,omitempty"`
+	AccountsURL         *string   `json:"accounts_url,omitempty"`
+	ID                  *int64    `json:"id,omitempty"`
+	Name                *string   `json:"name,omitempty"`
+	Description         *string   `json:"description,omitempty"`
+	MonthlyPriceInCents *int      `json:"monthly_price_in_cents,omitempty"`
+	YearlyPriceInCents  *int      `json:"yearly_price_in_cents,omitempty"`
+	PriceModel          *string   `json:"price_model,omitempty"`
+	UnitName            *string   `json:"unit_name,omitempty"`
+	Bullets             *[]string `json:"bullets,omitempty"`
+}
+
+// MarketplacePurchase represents a GitHub Apps Marketplace Purchase.
+type MarketplacePurchase struct {
+	BillingCycle    *string                 `json:"billing_cycle,omitempty"`
+	NextBillingDate *string                 `json:"next_billing_date,omitempty"`
+	UnitCount       *int                    `json:"unit_count,omitempty"`
+	Plan            *MarketplacePlan        `json:"plan,omitempty"`
+	Account         *MarketplacePlanAccount `json:"account,omitempty"`
+}
+
+// MarketplacePlanAccount represents a GitHub Account (user or organization) on a specific plan.
+type MarketplacePlanAccount struct {
+	URL                      *string              `json:"url,omitempty"`
+	Type                     *string              `json:"type,omitempty"`
+	ID                       *int64               `json:"id,omitempty"`
+	Login                    *string              `json:"login,omitempty"`
+	Email                    *string              `json:"email,omitempty"`
+	OrganizationBillingEmail *string              `json:"organization_billing_email,omitempty"`
+	MarketplacePurchase      *MarketplacePurchase `json:"marketplace_purchase,omitempty"`
+}
+
+// ListPlans lists all plans for your Marketplace listing.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/marketplace/#list-all-plans-for-your-marketplace-listing
+func (s *MarketplaceService) ListPlans(ctx context.Context, opt *ListOptions) ([]*MarketplacePlan, *Response, error) {
+	uri := s.marketplaceURI("plans")
+	u, err := addOptions(uri, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var plans []*MarketplacePlan
+	resp, err := s.client.Do(ctx, req, &plans)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return plans, resp, nil
+}
+
+// ListPlanAccountsForPlan lists all GitHub accounts (user or organization) on a specific plan.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/marketplace/#list-all-github-accounts-user-or-organization-on-a-specific-plan
+func (s *MarketplaceService) ListPlanAccountsForPlan(ctx context.Context, planID int64, opt *ListOptions) ([]*MarketplacePlanAccount, *Response, error) {
+	uri := s.marketplaceURI(fmt.Sprintf("plans/%v/accounts", planID))
+	u, err := addOptions(uri, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var accounts []*MarketplacePlanAccount
+	resp, err := s.client.Do(ctx, req, &accounts)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return accounts, resp, nil
+}
+
+// ListPlanAccountsForAccount lists all GitHub accounts (user or organization) associated with an account.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/marketplace/#check-if-a-github-account-is-associated-with-any-marketplace-listing
+func (s *MarketplaceService) ListPlanAccountsForAccount(ctx context.Context, accountID int64, opt *ListOptions) ([]*MarketplacePlanAccount, *Response, error) {
+	uri := s.marketplaceURI(fmt.Sprintf("accounts/%v", accountID))
+	u, err := addOptions(uri, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var accounts []*MarketplacePlanAccount
+	resp, err := s.client.Do(ctx, req, &accounts)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return accounts, resp, nil
+}
+
+// ListMarketplacePurchasesForUser lists all GitHub marketplace purchases made by a user.
+//
+// GitHub API docs: https://developer.github.com/v3/apps/marketplace/#get-a-users-marketplace-purchases
+func (s *MarketplaceService) ListMarketplacePurchasesForUser(ctx context.Context, opt *ListOptions) ([]*MarketplacePurchase, *Response, error) {
+	uri := "user/marketplace_purchases"
+	if s.Stubbed {
+		uri = "user/marketplace_purchases/stubbed"
+	}
+
+	u, err := addOptions(uri, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var purchases []*MarketplacePurchase
+	resp, err := s.client.Do(ctx, req, &purchases)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return purchases, resp, nil
+}
+
+func (s *MarketplaceService) marketplaceURI(endpoint string) string {
+	url := "marketplace_listing"
+	if s.Stubbed {
+		url = "marketplace_listing/stubbed"
+	}
+	return url + "/" + endpoint
+}
--- a/vendor/github.com/google/go-github/v28/github/authorizations.go
+++ b/vendor/github.com/google/go-github/v28/github/authorizations.go
@@ -403,7 +403,7 @@ func (s *AuthorizationsService) DeleteGrant(ctx context.Context, id int64) (*Res
 // you can e.g. create or delete a user's public SSH key. NOTE: creating a
 // new token automatically revokes an existing one.
 //
-// GitHub API docs: https://developer.github.com/enterprise/v3/enterprise-admin/users/#create-an-impersonation-oauth-token
+// GitHub API docs: https://developer.github.com/enterprise/2.5/v3/users/administration/#create-an-impersonation-oauth-token
 func (s *AuthorizationsService) CreateImpersonation(ctx context.Context, username string, authReq *AuthorizationRequest) (*Authorization, *Response, error) {
 	u := fmt.Sprintf("admin/users/%v/authorizations", username)
 	req, err := s.client.NewRequest("POST", u, authReq)
@@ -423,7 +423,7 @@ func (s *AuthorizationsService) CreateImpersonation(ctx context.Context, usernam
 //
 // NOTE: there can be only one at a time.
 //
-// GitHub API docs: https://developer.github.com/enterprise/v3/enterprise-admin/users/#delete-an-impersonation-oauth-token
+// GitHub API docs: https://developer.github.com/enterprise/2.5/v3/users/administration/#delete-an-impersonation-oauth-token
 func (s *AuthorizationsService) DeleteImpersonation(ctx context.Context, username string) (*Response, error) {
 	u := fmt.Sprintf("admin/users/%v/authorizations", username)
 	req, err := s.client.NewRequest("DELETE", u, nil)
--- a/vendor/github.com/google/go-github/github/checks.go
+++ b/vendor/github.com/google/go-github/github/checks.go
@@ -0,0 +1,428 @@
+// Copyright 2018 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+)
+
+// ChecksService provides access to the Checks API in the
+// GitHub API.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/
+type ChecksService service
+
+// CheckRun represents a GitHub check run on a repository associated with a GitHub app.
+type CheckRun struct {
+	ID           *int64          `json:"id,omitempty"`
+	HeadSHA      *string         `json:"head_sha,omitempty"`
+	ExternalID   *string         `json:"external_id,omitempty"`
+	URL          *string         `json:"url,omitempty"`
+	HTMLURL      *string         `json:"html_url,omitempty"`
+	Status       *string         `json:"status,omitempty"`
+	Conclusion   *string         `json:"conclusion,omitempty"`
+	StartedAt    *Timestamp      `json:"started_at,omitempty"`
+	CompletedAt  *Timestamp      `json:"completed_at,omitempty"`
+	Output       *CheckRunOutput `json:"output,omitempty"`
+	Name         *string         `json:"name,omitempty"`
+	CheckSuite   *CheckSuite     `json:"check_suite,omitempty"`
+	App          *App            `json:"app,omitempty"`
+	PullRequests []*PullRequest  `json:"pull_requests,omitempty"`
+}
+
+// CheckRunOutput represents the output of a CheckRun.
+type CheckRunOutput struct {
+	Title            *string               `json:"title,omitempty"`
+	Summary          *string               `json:"summary,omitempty"`
+	Text             *string               `json:"text,omitempty"`
+	AnnotationsCount *int                  `json:"annotations_count,omitempty"`
+	AnnotationsURL   *string               `json:"annotations_url,omitempty"`
+	Annotations      []*CheckRunAnnotation `json:"annotations,omitempty"`
+	Images           []*CheckRunImage      `json:"images,omitempty"`
+}
+
+// CheckRunAnnotation represents an annotation object for a CheckRun output.
+type CheckRunAnnotation struct {
+	FileName     *string `json:"filename,omitempty"`
+	BlobHRef     *string `json:"blob_href,omitempty"`
+	StartLine    *int    `json:"start_line,omitempty"`
+	EndLine      *int    `json:"end_line,omitempty"`
+	WarningLevel *string `json:"warning_level,omitempty"`
+	Message      *string `json:"message,omitempty"`
+	Title        *string `json:"title,omitempty"`
+	RawDetails   *string `json:"raw_details,omitempty"`
+}
+
+// CheckRunImage represents an image object for a CheckRun output.
+type CheckRunImage struct {
+	Alt      *string `json:"alt,omitempty"`
+	ImageURL *string `json:"image_url,omitempty"`
+	Caption  *string `json:"caption,omitempty"`
+}
+
+// CheckSuite represents a suite of check runs.
+type CheckSuite struct {
+	ID           *int64         `json:"id,omitempty"`
+	HeadBranch   *string        `json:"head_branch,omitempty"`
+	HeadSHA      *string        `json:"head_sha,omitempty"`
+	URL          *string        `json:"url,omitempty"`
+	BeforeSHA    *string        `json:"before,omitempty"`
+	AfterSHA     *string        `json:"after,omitempty"`
+	Status       *string        `json:"status,omitempty"`
+	Conclusion   *string        `json:"conclusion,omitempty"`
+	App          *App           `json:"app,omitempty"`
+	Repository   *Repository    `json:"repository,omitempty"`
+	PullRequests []*PullRequest `json:"pull_requests,omitempty"`
+}
+
+func (c CheckRun) String() string {
+	return Stringify(c)
+}
+
+func (c CheckSuite) String() string {
+	return Stringify(c)
+}
+
+// GetCheckRun gets a check-run for a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/runs/#get-a-single-check-run
+func (s *ChecksService) GetCheckRun(ctx context.Context, owner, repo string, checkRunID int64) (*CheckRun, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/check-runs/%v", owner, repo, checkRunID)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	checkRun := new(CheckRun)
+	resp, err := s.client.Do(ctx, req, checkRun)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkRun, resp, nil
+}
+
+// GetCheckSuite gets a single check suite.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/suites/#get-a-single-check-suite
+func (s *ChecksService) GetCheckSuite(ctx context.Context, owner, repo string, checkSuiteID int64) (*CheckSuite, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/check-suites/%v", owner, repo, checkSuiteID)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	checkSuite := new(CheckSuite)
+	resp, err := s.client.Do(ctx, req, checkSuite)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkSuite, resp, nil
+}
+
+// CreateCheckRunOptions sets up parameters needed to create a CheckRun.
+type CreateCheckRunOptions struct {
+	Name        string          `json:"name"`                   // The name of the check (e.g., "code-coverage"). (Required.)
+	HeadBranch  string          `json:"head_branch"`            // The name of the branch to perform a check against. (Required.)
+	HeadSHA     string          `json:"head_sha"`               // The SHA of the commit. (Required.)
+	DetailsURL  *string         `json:"details_url,omitempty"`  // The URL of the integrator's site that has the full details of the check. (Optional.)
+	ExternalID  *string         `json:"external_id,omitempty"`  // A reference for the run on the integrator's system. (Optional.)
+	Status      *string         `json:"status,omitempty"`       // The current status. Can be one of "queued", "in_progress", or "completed". Default: "queued". (Optional.)
+	Conclusion  *string         `json:"conclusion,omitempty"`   // Can be one of "success", "failure", "neutral", "cancelled", "timed_out", or "action_required". (Optional. Required if you provide a status of "completed".)
+	StartedAt   *Timestamp      `json:"started_at,omitempty"`   // The time that the check run began. (Optional.)
+	CompletedAt *Timestamp      `json:"completed_at,omitempty"` // The time the check completed. (Optional. Required if you provide conclusion.)
+	Output      *CheckRunOutput `json:"output,omitempty"`       // Provide descriptive details about the run. (Optional)
+}
+
+// CreateCheckRun creates a check run for repository.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/runs/#create-a-check-run
+func (s *ChecksService) CreateCheckRun(ctx context.Context, owner, repo string, opt CreateCheckRunOptions) (*CheckRun, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/check-runs", owner, repo)
+	req, err := s.client.NewRequest("POST", u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	checkRun := new(CheckRun)
+	resp, err := s.client.Do(ctx, req, checkRun)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkRun, resp, nil
+}
+
+// UpdateCheckRunOptions sets up parameters needed to update a CheckRun.
+type UpdateCheckRunOptions struct {
+	Name        string          `json:"name"`                   // The name of the check (e.g., "code-coverage"). (Required.)
+	HeadBranch  *string         `json:"head_branch,omitempty"`  // The name of the branch to perform a check against. (Optional.)
+	HeadSHA     *string         `json:"head_sha,omitempty"`     // The SHA of the commit. (Optional.)
+	DetailsURL  *string         `json:"details_url,omitempty"`  // The URL of the integrator's site that has the full details of the check. (Optional.)
+	ExternalID  *string         `json:"external_id,omitempty"`  // A reference for the run on the integrator's system. (Optional.)
+	Status      *string         `json:"status,omitempty"`       // The current status. Can be one of "queued", "in_progress", or "completed". Default: "queued". (Optional.)
+	Conclusion  *string         `json:"conclusion,omitempty"`   // Can be one of "success", "failure", "neutral", "cancelled", "timed_out", or "action_required". (Optional. Required if you provide a status of "completed".)
+	CompletedAt *Timestamp      `json:"completed_at,omitempty"` // The time the check completed. (Optional. Required if you provide conclusion.)
+	Output      *CheckRunOutput `json:"output,omitempty"`       // Provide descriptive details about the run. (Optional)
+}
+
+// UpdateCheckRun updates a check run for a specific commit in a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/runs/#update-a-check-run
+func (s *ChecksService) UpdateCheckRun(ctx context.Context, owner, repo string, checkRunID int64, opt UpdateCheckRunOptions) (*CheckRun, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/check-runs/%v", owner, repo, checkRunID)
+	req, err := s.client.NewRequest("PATCH", u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	checkRun := new(CheckRun)
+	resp, err := s.client.Do(ctx, req, checkRun)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkRun, resp, nil
+}
+
+// ListCheckRunAnnotations lists the annotations for a check run.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/runs/#list-annotations-for-a-check-run
+func (s *ChecksService) ListCheckRunAnnotations(ctx context.Context, owner, repo string, checkRunID int64, opt *ListOptions) ([]*CheckRunAnnotation, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/check-runs/%v/annotations", owner, repo, checkRunID)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	var checkRunAnnotations []*CheckRunAnnotation
+	resp, err := s.client.Do(ctx, req, &checkRunAnnotations)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkRunAnnotations, resp, nil
+}
+
+// ListCheckRunsOptions represents parameters to list check runs.
+type ListCheckRunsOptions struct {
+	CheckName *string `url:"check_name,omitempty"` // Returns check runs with the specified name.
+	Status    *string `url:"status,omitempty"`     // Returns check runs with the specified status. Can be one of "queued", "in_progress", or "completed".
+	Filter    *string `url:"filter,omitempty"`     // Filters check runs by their completed_at timestamp. Can be one of "latest" (returning the most recent check runs) or "all". Default: "latest"
+
+	ListOptions
+}
+
+// ListCheckRunsResults represents the result of a check run list.
+type ListCheckRunsResults struct {
+	Total     *int        `json:"total_count,omitempty"`
+	CheckRuns []*CheckRun `json:"check_runs,omitempty"`
+}
+
+// ListCheckRunsForRef lists check runs for a specific ref.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/runs/#list-check-runs-for-a-specific-ref
+func (s *ChecksService) ListCheckRunsForRef(ctx context.Context, owner, repo, ref string, opt *ListCheckRunsOptions) (*ListCheckRunsResults, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/commits/%v/check-runs", owner, repo, ref)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	var checkRunResults *ListCheckRunsResults
+	resp, err := s.client.Do(ctx, req, &checkRunResults)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkRunResults, resp, nil
+}
+
+// ListCheckRunsCheckSuite lists check runs for a check suite.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/runs/#list-check-runs-in-a-check-suite
+func (s *ChecksService) ListCheckRunsCheckSuite(ctx context.Context, owner, repo string, checkSuiteID int64, opt *ListCheckRunsOptions) (*ListCheckRunsResults, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/check-suites/%v/check-runs", owner, repo, checkSuiteID)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	var checkRunResults *ListCheckRunsResults
+	resp, err := s.client.Do(ctx, req, &checkRunResults)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkRunResults, resp, nil
+}
+
+// ListCheckSuiteOptions represents parameters to list check suites.
+type ListCheckSuiteOptions struct {
+	CheckName *string `url:"check_name,omitempty"` // Filters checks suites by the name of the check run.
+	AppID     *int    `url:"app_id,omitempty"`     // Filters check suites by GitHub App id.
+
+	ListOptions
+}
+
+// ListCheckSuiteResults represents the result of a check run list.
+type ListCheckSuiteResults struct {
+	Total       *int          `json:"total_count,omitempty"`
+	CheckSuites []*CheckSuite `json:"check_suites,omitempty"`
+}
+
+// ListCheckSuitesForRef lists check suite for a specific ref.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/suites/#list-check-suites-for-a-specific-ref
+func (s *ChecksService) ListCheckSuitesForRef(ctx context.Context, owner, repo, ref string, opt *ListCheckSuiteOptions) (*ListCheckSuiteResults, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/commits/%v/check-suites", owner, repo, ref)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	var checkSuiteResults *ListCheckSuiteResults
+	resp, err := s.client.Do(ctx, req, &checkSuiteResults)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkSuiteResults, resp, nil
+}
+
+// AutoTriggerCheck enables or disables automatic creation of CheckSuite events upon pushes to the repository.
+type AutoTriggerCheck struct {
+	AppID   *int64 `json:"app_id,omitempty"`  // The id of the GitHub App. (Required.)
+	Setting *bool  `json:"setting,omitempty"` // Set to "true" to enable automatic creation of CheckSuite events upon pushes to the repository, or "false" to disable them. Default: "true" (Required.)
+}
+
+// CheckSuitePreferenceOptions set options for check suite preferences for a repository.
+type CheckSuitePreferenceOptions struct {
+	PreferenceList *PreferenceList `json:"auto_trigger_checks,omitempty"` // A list of auto trigger checks that can be set for a check suite in a repository.
+}
+
+// CheckSuitePreferenceResults represents the results of the preference set operation.
+type CheckSuitePreferenceResults struct {
+	Preferences *PreferenceList `json:"preferences,omitempty"`
+	Repository  *Repository     `json:"repository,omitempty"`
+}
+
+// PreferenceList represents a list of auto trigger checks for  repository
+type PreferenceList struct {
+	AutoTriggerChecks []*AutoTriggerCheck `json:"auto_trigger_checks,omitempty"` // A slice of auto trigger checks that can be set for a check suite in a repository.
+}
+
+// SetCheckSuitePreferences changes the default automatic flow when creating check suites.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/suites/#set-preferences-for-check-suites-on-a-repository
+func (s *ChecksService) SetCheckSuitePreferences(ctx context.Context, owner, repo string, opt CheckSuitePreferenceOptions) (*CheckSuitePreferenceResults, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/check-suites/preferences", owner, repo)
+	req, err := s.client.NewRequest("PATCH", u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	var checkSuitePrefResults *CheckSuitePreferenceResults
+	resp, err := s.client.Do(ctx, req, &checkSuitePrefResults)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkSuitePrefResults, resp, nil
+}
+
+// CreateCheckSuiteOptions sets up parameters to manually create a check suites
+type CreateCheckSuiteOptions struct {
+	HeadSHA    string  `json:"head_sha"`              // The sha of the head commit. (Required.)
+	HeadBranch *string `json:"head_branch,omitempty"` // The name of the head branch where the code changes are implemented.
+}
+
+// CreateCheckSuite manually creates a check suite for a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/suites/#create-a-check-suite
+func (s *ChecksService) CreateCheckSuite(ctx context.Context, owner, repo string, opt CreateCheckSuiteOptions) (*CheckSuite, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/check-suites", owner, repo)
+	req, err := s.client.NewRequest("POST", u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	checkSuite := new(CheckSuite)
+	resp, err := s.client.Do(ctx, req, checkSuite)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return checkSuite, resp, nil
+}
+
+// RequestCheckSuiteOptions sets up the parameters for a request check suite endpoint.
+type RequestCheckSuiteOptions struct {
+	HeadSHA string `json:"head_sha"` // The sha of the head commit. (Required.)
+}
+
+// RequestCheckSuite triggers GitHub to create a new check suite, without pushing new code to a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/checks/suites/#request-check-suites
+func (s *ChecksService) RequestCheckSuite(ctx context.Context, owner, repo string, opt RequestCheckSuiteOptions) (*Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/check-suite-requests", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := s.client.NewRequest("POST", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
+
+	resp, err := s.client.Do(ctx, req, nil)
+	return resp, err
+}
--- a/vendor/github.com/google/go-github/github/doc.go
+++ b/vendor/github.com/google/go-github/github/doc.go
@@ -0,0 +1,187 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/*
+Package github provides a client for using the GitHub API.
+
+Usage:
+
+	import "github.com/google/go-github/github"
+
+Construct a new GitHub client, then use the various services on the client to
+access different parts of the GitHub API. For example:
+
+	client := github.NewClient(nil)
+
+	// list all organizations for user "willnorris"
+	orgs, _, err := client.Organizations.List(ctx, "willnorris", nil)
+
+Some API methods have optional parameters that can be passed. For example:
+
+	client := github.NewClient(nil)
+
+	// list public repositories for org "github"
+	opt := &github.RepositoryListByOrgOptions{Type: "public"}
+	repos, _, err := client.Repositories.ListByOrg(ctx, "github", opt)
+
+The services of a client divide the API into logical chunks and correspond to
+the structure of the GitHub API documentation at
+https://developer.github.com/v3/.
+
+NOTE: Using the https://godoc.org/context package, one can easily
+pass cancelation signals and deadlines to various services of the client for
+handling a request. In case there is no context available, then context.Background()
+can be used as a starting point.
+
+For more sample code snippets, head over to the https://github.com/google/go-github/tree/master/example directory.
+
+Authentication
+
+The go-github library does not directly handle authentication. Instead, when
+creating a new client, pass an http.Client that can handle authentication for
+you. The easiest and recommended way to do this is using the golang.org/x/oauth2
+library, but you can always use any other library that provides an http.Client.
+If you have an OAuth2 access token (for example, a personal API token), you can
+use it with the oauth2 library using:
+
+	import "golang.org/x/oauth2"
+
+	func main() {
+		ctx := context.Background()
+		ts := oauth2.StaticTokenSource(
+			&oauth2.Token{AccessToken: "... your access token ..."},
+		)
+		tc := oauth2.NewClient(ctx, ts)
+
+		client := github.NewClient(tc)
+
+		// list all repositories for the authenticated user
+		repos, _, err := client.Repositories.List(ctx, "", nil)
+	}
+
+Note that when using an authenticated Client, all calls made by the client will
+include the specified OAuth token. Therefore, authenticated clients should
+almost never be shared between different users.
+
+See the oauth2 docs for complete instructions on using that library.
+
+For API methods that require HTTP Basic Authentication, use the
+BasicAuthTransport.
+
+GitHub Apps authentication can be provided by the
+https://github.com/bradleyfalzon/ghinstallation package.
+
+	import "github.com/bradleyfalzon/ghinstallation"
+
+	func main() {
+		// Wrap the shared transport for use with the integration ID 1 authenticating with installation ID 99.
+		itr, err := ghinstallation.NewKeyFromFile(http.DefaultTransport, 1, 99, "2016-10-19.private-key.pem")
+		if err != nil {
+			// Handle error.
+		}
+
+		// Use installation transport with client
+		client := github.NewClient(&http.Client{Transport: itr})
+
+		// Use client...
+	}
+
+Rate Limiting
+
+GitHub imposes a rate limit on all API clients. Unauthenticated clients are
+limited to 60 requests per hour, while authenticated clients can make up to
+5,000 requests per hour. The Search API has a custom rate limit. Unauthenticated
+clients are limited to 10 requests per minute, while authenticated clients
+can make up to 30 requests per minute. To receive the higher rate limit when
+making calls that are not issued on behalf of a user,
+use UnauthenticatedRateLimitedTransport.
+
+The returned Response.Rate value contains the rate limit information
+from the most recent API call. If a recent enough response isn't
+available, you can use RateLimits to fetch the most up-to-date rate
+limit data for the client.
+
+To detect an API rate limit error, you can check if its type is *github.RateLimitError:
+
+	repos, _, err := client.Repositories.List(ctx, "", nil)
+	if _, ok := err.(*github.RateLimitError); ok {
+		log.Println("hit rate limit")
+	}
+
+Learn more about GitHub rate limiting at
+https://developer.github.com/v3/#rate-limiting.
+
+Accepted Status
+
+Some endpoints may return a 202 Accepted status code, meaning that the
+information required is not yet ready and was scheduled to be gathered on
+the GitHub side. Methods known to behave like this are documented specifying
+this behavior.
+
+To detect this condition of error, you can check if its type is
+*github.AcceptedError:
+
+	stats, _, err := client.Repositories.ListContributorsStats(ctx, org, repo)
+	if _, ok := err.(*github.AcceptedError); ok {
+		log.Println("scheduled on GitHub side")
+	}
+
+Conditional Requests
+
+The GitHub API has good support for conditional requests which will help
+prevent you from burning through your rate limit, as well as help speed up your
+application. go-github does not handle conditional requests directly, but is
+instead designed to work with a caching http.Transport. We recommend using
+https://github.com/gregjones/httpcache for that.
+
+Learn more about GitHub conditional requests at
+https://developer.github.com/v3/#conditional-requests.
+
+Creating and Updating Resources
+
+All structs for GitHub resources use pointer values for all non-repeated fields.
+This allows distinguishing between unset fields and those set to a zero-value.
+Helper functions have been provided to easily create these pointers for string,
+bool, and int values. For example:
+
+	// create a new private repository named "foo"
+	repo := &github.Repository{
+		Name:    github.String("foo"),
+		Private: github.Bool(true),
+	}
+	client.Repositories.Create(ctx, "", repo)
+
+Users who have worked with protocol buffers should find this pattern familiar.
+
+Pagination
+
+All requests for resource collections (repos, pull requests, issues, etc.)
+support pagination. Pagination options are described in the
+github.ListOptions struct and passed to the list methods directly or as an
+embedded type of a more specific list options struct (for example
+github.PullRequestListOptions). Pages information is available via the
+github.Response struct.
+
+	client := github.NewClient(nil)
+
+	opt := &github.RepositoryListByOrgOptions{
+		ListOptions: github.ListOptions{PerPage: 10},
+	}
+	// get all pages of results
+	var allRepos []*github.Repository
+	for {
+		repos, resp, err := client.Repositories.ListByOrg(ctx, "github", opt)
+		if err != nil {
+			return err
+		}
+		allRepos = append(allRepos, repos...)
+		if resp.NextPage == 0 {
+			break
+		}
+		opt.Page = resp.NextPage
+	}
+
+*/
+package github
--- a/vendor/github.com/google/go-github/github/event_types.go
+++ b/vendor/github.com/google/go-github/github/event_types.go
@@ -0,0 +1,786 @@
+// Copyright 2016 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// These event types are shared between the Events API and used as Webhook payloads.
+
+package github
+
+// CheckRunEvent is triggered when a check run is "created", "updated", or "re-requested".
+// The Webhook event name is "check_run".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#checkrunevent
+type CheckRunEvent struct {
+	CheckRun *CheckRun `json:"check_run,omitempty"`
+	// The action performed. Can be "created", "updated" or "re-requested".
+	Action *string `json:"action,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Org          *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// CheckSuiteEvent is triggered when a check suite is "completed", "requested", or "re-requested".
+// The Webhook event name is "check_suite".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#checksuiteevent
+type CheckSuiteEvent struct {
+	CheckSuite *CheckSuite `json:"check_suite,omitempty"`
+	// The action performed. Can be "completed", "requested" or "re-requested".
+	Action *string `json:"action,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Org          *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// CommitCommentEvent is triggered when a commit comment is created.
+// The Webhook event name is "commit_comment".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#commitcommentevent
+type CommitCommentEvent struct {
+	Comment *RepositoryComment `json:"comment,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Action       *string       `json:"action,omitempty"`
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// CreateEvent represents a created repository, branch, or tag.
+// The Webhook event name is "create".
+//
+// Note: webhooks will not receive this event for created repositories.
+// Additionally, webhooks will not receive this event for tags if more
+// than three tags are pushed at once.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#createevent
+type CreateEvent struct {
+	Ref *string `json:"ref,omitempty"`
+	// RefType is the object that was created. Possible values are: "repository", "branch", "tag".
+	RefType      *string `json:"ref_type,omitempty"`
+	MasterBranch *string `json:"master_branch,omitempty"`
+	Description  *string `json:"description,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	PusherType   *string       `json:"pusher_type,omitempty"`
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// DeleteEvent represents a deleted branch or tag.
+// The Webhook event name is "delete".
+//
+// Note: webhooks will not receive this event for tags if more than three tags
+// are deleted at once.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#deleteevent
+type DeleteEvent struct {
+	Ref *string `json:"ref,omitempty"`
+	// RefType is the object that was deleted. Possible values are: "branch", "tag".
+	RefType *string `json:"ref_type,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	PusherType   *string       `json:"pusher_type,omitempty"`
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// DeploymentEvent represents a deployment.
+// The Webhook event name is "deployment".
+//
+// Events of this type are not visible in timelines, they are only used to trigger hooks.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#deploymentevent
+type DeploymentEvent struct {
+	Deployment *Deployment `json:"deployment,omitempty"`
+	Repo       *Repository `json:"repository,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// DeploymentStatusEvent represents a deployment status.
+// The Webhook event name is "deployment_status".
+//
+// Events of this type are not visible in timelines, they are only used to trigger hooks.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#deploymentstatusevent
+type DeploymentStatusEvent struct {
+	Deployment       *Deployment       `json:"deployment,omitempty"`
+	DeploymentStatus *DeploymentStatus `json:"deployment_status,omitempty"`
+	Repo             *Repository       `json:"repository,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// ForkEvent is triggered when a user forks a repository.
+// The Webhook event name is "fork".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#forkevent
+type ForkEvent struct {
+	// Forkee is the created repository.
+	Forkee *Repository `json:"forkee,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// Page represents a single Wiki page.
+type Page struct {
+	PageName *string `json:"page_name,omitempty"`
+	Title    *string `json:"title,omitempty"`
+	Summary  *string `json:"summary,omitempty"`
+	Action   *string `json:"action,omitempty"`
+	SHA      *string `json:"sha,omitempty"`
+	HTMLURL  *string `json:"html_url,omitempty"`
+}
+
+// GollumEvent is triggered when a Wiki page is created or updated.
+// The Webhook event name is "gollum".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#gollumevent
+type GollumEvent struct {
+	Pages []*Page `json:"pages,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// EditChange represents the changes when an issue, pull request, or comment has
+// been edited.
+type EditChange struct {
+	Title *struct {
+		From *string `json:"from,omitempty"`
+	} `json:"title,omitempty"`
+	Body *struct {
+		From *string `json:"from,omitempty"`
+	} `json:"body,omitempty"`
+}
+
+// ProjectChange represents the changes when a project has been edited.
+type ProjectChange struct {
+	Name *struct {
+		From *string `json:"from,omitempty"`
+	} `json:"name,omitempty"`
+	Body *struct {
+		From *string `json:"from,omitempty"`
+	} `json:"body,omitempty"`
+}
+
+// ProjectCardChange represents the changes when a project card has been edited.
+type ProjectCardChange struct {
+	Note *struct {
+		From *string `json:"from,omitempty"`
+	} `json:"note,omitempty"`
+}
+
+// ProjectColumnChange represents the changes when a project column has been edited.
+type ProjectColumnChange struct {
+	Name *struct {
+		From *string `json:"from,omitempty"`
+	} `json:"name,omitempty"`
+}
+
+// TeamChange represents the changes when a team has been edited.
+type TeamChange struct {
+	Description *struct {
+		From *string `json:"from,omitempty"`
+	} `json:"description,omitempty"`
+	Name *struct {
+		From *string `json:"from,omitempty"`
+	} `json:"name,omitempty"`
+	Privacy *struct {
+		From *string `json:"from,omitempty"`
+	} `json:"privacy,omitempty"`
+	Repository *struct {
+		Permissions *struct {
+			From *struct {
+				Admin *bool `json:"admin,omitempty"`
+				Pull  *bool `json:"pull,omitempty"`
+				Push  *bool `json:"push,omitempty"`
+			} `json:"from,omitempty"`
+		} `json:"permissions,omitempty"`
+	} `json:"repository,omitempty"`
+}
+
+// InstallationEvent is triggered when a GitHub App has been installed or uninstalled.
+// The Webhook event name is "installation".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#installationevent
+type InstallationEvent struct {
+	// The action that was performed. Can be either "created" or "deleted".
+	Action       *string       `json:"action,omitempty"`
+	Repositories []*Repository `json:"repositories,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// InstallationRepositoriesEvent is triggered when a repository is added or
+// removed from an installation. The Webhook event name is "installation_repositories".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#installationrepositoriesevent
+type InstallationRepositoriesEvent struct {
+	// The action that was performed. Can be either "added" or "removed".
+	Action              *string       `json:"action,omitempty"`
+	RepositoriesAdded   []*Repository `json:"repositories_added,omitempty"`
+	RepositoriesRemoved []*Repository `json:"repositories_removed,omitempty"`
+	RepositorySelection *string       `json:"repository_selection,omitempty"`
+	Sender              *User         `json:"sender,omitempty"`
+	Installation        *Installation `json:"installation,omitempty"`
+}
+
+// IssueCommentEvent is triggered when an issue comment is created on an issue
+// or pull request.
+// The Webhook event name is "issue_comment".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#issuecommentevent
+type IssueCommentEvent struct {
+	// Action is the action that was performed on the comment.
+	// Possible values are: "created", "edited", "deleted".
+	Action  *string       `json:"action,omitempty"`
+	Issue   *Issue        `json:"issue,omitempty"`
+	Comment *IssueComment `json:"comment,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Changes      *EditChange   `json:"changes,omitempty"`
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// IssuesEvent is triggered when an issue is assigned, unassigned, labeled,
+// unlabeled, opened, closed, or reopened.
+// The Webhook event name is "issues".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#issuesevent
+type IssuesEvent struct {
+	// Action is the action that was performed. Possible values are: "assigned",
+	// "unassigned", "labeled", "unlabeled", "opened", "closed", "reopened", "edited".
+	Action   *string `json:"action,omitempty"`
+	Issue    *Issue  `json:"issue,omitempty"`
+	Assignee *User   `json:"assignee,omitempty"`
+	Label    *Label  `json:"label,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Changes      *EditChange   `json:"changes,omitempty"`
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// LabelEvent is triggered when a repository's label is created, edited, or deleted.
+// The Webhook event name is "label"
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#labelevent
+type LabelEvent struct {
+	// Action is the action that was performed. Possible values are:
+	// "created", "edited", "deleted"
+	Action *string `json:"action,omitempty"`
+	Label  *Label  `json:"label,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Changes      *EditChange   `json:"changes,omitempty"`
+	Repo         *Repository   `json:"repository,omitempty"`
+	Org          *Organization `json:"organization,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// MarketplacePurchaseEvent is triggered when a user purchases, cancels, or changes
+// their GitHub Marketplace plan.
+// Webhook event name "marketplace_purchase".
+//
+// Github API docs: https://developer.github.com/v3/activity/events/types/#marketplacepurchaseevent
+type MarketplacePurchaseEvent struct {
+	// Action is the action that was performed. Possible values are:
+	// "purchased", "cancelled", "changed".
+	Action *string `json:"action,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	EffectiveDate               *Timestamp           `json:"effective_date,omitempty"`
+	MarketplacePurchase         *MarketplacePurchase `json:"marketplace_purchase,omitempty"`
+	PreviousMarketplacePurchase *MarketplacePurchase `json:"previous_marketplace_purchase,omitempty"`
+	Sender                      *User                `json:"sender,omitempty"`
+	Installation                *Installation        `json:"installation,omitempty"`
+}
+
+// MemberEvent is triggered when a user is added as a collaborator to a repository.
+// The Webhook event name is "member".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#memberevent
+type MemberEvent struct {
+	// Action is the action that was performed. Possible value is: "added".
+	Action *string `json:"action,omitempty"`
+	Member *User   `json:"member,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// MembershipEvent is triggered when a user is added or removed from a team.
+// The Webhook event name is "membership".
+//
+// Events of this type are not visible in timelines, they are only used to
+// trigger organization webhooks.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#membershipevent
+type MembershipEvent struct {
+	// Action is the action that was performed. Possible values are: "added", "removed".
+	Action *string `json:"action,omitempty"`
+	// Scope is the scope of the membership. Possible value is: "team".
+	Scope  *string `json:"scope,omitempty"`
+	Member *User   `json:"member,omitempty"`
+	Team   *Team   `json:"team,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Org          *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// MilestoneEvent is triggered when a milestone is created, closed, opened, edited, or deleted.
+// The Webhook event name is "milestone".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#milestoneevent
+type MilestoneEvent struct {
+	// Action is the action that was performed. Possible values are:
+	// "created", "closed", "opened", "edited", "deleted"
+	Action    *string    `json:"action,omitempty"`
+	Milestone *Milestone `json:"milestone,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Changes      *EditChange   `json:"changes,omitempty"`
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Org          *Organization `json:"organization,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// OrganizationEvent is triggered when a user is added, removed, or invited to an organization.
+// Events of this type are not visible in timelines. These events are only used to trigger organization hooks.
+// Webhook event name is "organization".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#organizationevent
+type OrganizationEvent struct {
+	// Action is the action that was performed.
+	// Can be one of "member_added", "member_removed", or "member_invited".
+	Action *string `json:"action,omitempty"`
+
+	// Invitaion is the invitation for the user or email if the action is "member_invited".
+	Invitation *Invitation `json:"invitation,omitempty"`
+
+	// Membership is the membership between the user and the organization.
+	// Not present when the action is "member_invited".
+	Membership *Membership `json:"membership,omitempty"`
+
+	Organization *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// OrgBlockEvent is triggered when an organization blocks or unblocks a user.
+// The Webhook event name is "org_block".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#orgblockevent
+type OrgBlockEvent struct {
+	// Action is the action that was performed.
+	// Can be "blocked" or "unblocked".
+	Action       *string       `json:"action,omitempty"`
+	BlockedUser  *User         `json:"blocked_user,omitempty"`
+	Organization *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// PageBuildEvent represents an attempted build of a GitHub Pages site, whether
+// successful or not.
+// The Webhook event name is "page_build".
+//
+// This event is triggered on push to a GitHub Pages enabled branch (gh-pages
+// for project pages, master for user and organization pages).
+//
+// Events of this type are not visible in timelines, they are only used to trigger hooks.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#pagebuildevent
+type PageBuildEvent struct {
+	Build *PagesBuild `json:"build,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	ID           *int64        `json:"id,omitempty"`
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// PingEvent is triggered when a Webhook is added to GitHub.
+//
+// GitHub API docs: https://developer.github.com/webhooks/#ping-event
+type PingEvent struct {
+	// Random string of GitHub zen.
+	Zen *string `json:"zen,omitempty"`
+	// The ID of the webhook that triggered the ping.
+	HookID *int64 `json:"hook_id,omitempty"`
+	// The webhook configuration.
+	Hook         *Hook         `json:"hook,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// ProjectEvent is triggered when project is created, modified or deleted.
+// The webhook event name is "project".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#projectevent
+type ProjectEvent struct {
+	Action  *string        `json:"action,omitempty"`
+	Changes *ProjectChange `json:"changes,omitempty"`
+	Project *Project       `json:"project,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Org          *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// ProjectCardEvent is triggered when a project card is created, updated, moved, converted to an issue, or deleted.
+// The webhook event name is "project_card".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#projectcardevent
+type ProjectCardEvent struct {
+	Action      *string            `json:"action,omitempty"`
+	Changes     *ProjectCardChange `json:"changes,omitempty"`
+	AfterID     *int64             `json:"after_id,omitempty"`
+	ProjectCard *ProjectCard       `json:"project_card,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Org          *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// ProjectColumnEvent is triggered when a project column is created, updated, moved, or deleted.
+// The webhook event name is "project_column".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#projectcolumnevent
+type ProjectColumnEvent struct {
+	Action        *string              `json:"action,omitempty"`
+	Changes       *ProjectColumnChange `json:"changes,omitempty"`
+	AfterID       *int64               `json:"after_id,omitempty"`
+	ProjectColumn *ProjectColumn       `json:"project_column,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Org          *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// PublicEvent is triggered when a private repository is open sourced.
+// According to GitHub: "Without a doubt: the best GitHub event."
+// The Webhook event name is "public".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#publicevent
+type PublicEvent struct {
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// PullRequestEvent is triggered when a pull request is assigned, unassigned,
+// labeled, unlabeled, opened, closed, reopened, or synchronized.
+// The Webhook event name is "pull_request".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#pullrequestevent
+type PullRequestEvent struct {
+	// Action is the action that was performed. Possible values are:
+	// "assigned", "unassigned", "review_requested", "review_request_removed", "labeled", "unlabeled",
+	// "opened", "closed", "reopened", "synchronize", "edited".
+	// If the action is "closed" and the merged key is false,
+	// the pull request was closed with unmerged commits. If the action is "closed"
+	// and the merged key is true, the pull request was merged.
+	Action      *string      `json:"action,omitempty"`
+	Number      *int         `json:"number,omitempty"`
+	PullRequest *PullRequest `json:"pull_request,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Changes *EditChange `json:"changes,omitempty"`
+	// RequestedReviewer is populated in "review_requested", "review_request_removed" event deliveries.
+	// A request affecting multiple reviewers at once is split into multiple
+	// such event deliveries, each with a single, different RequestedReviewer.
+	RequestedReviewer *User         `json:"requested_reviewer,omitempty"`
+	Repo              *Repository   `json:"repository,omitempty"`
+	Sender            *User         `json:"sender,omitempty"`
+	Installation      *Installation `json:"installation,omitempty"`
+	Label             *Label        `json:"label,omitempty"` // Populated in "labeled" event deliveries.
+}
+
+// PullRequestReviewEvent is triggered when a review is submitted on a pull
+// request.
+// The Webhook event name is "pull_request_review".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#pullrequestreviewevent
+type PullRequestReviewEvent struct {
+	// Action is always "submitted".
+	Action      *string            `json:"action,omitempty"`
+	Review      *PullRequestReview `json:"review,omitempty"`
+	PullRequest *PullRequest       `json:"pull_request,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+
+	// The following field is only present when the webhook is triggered on
+	// a repository belonging to an organization.
+	Organization *Organization `json:"organization,omitempty"`
+}
+
+// PullRequestReviewCommentEvent is triggered when a comment is created on a
+// portion of the unified diff of a pull request.
+// The Webhook event name is "pull_request_review_comment".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#pullrequestreviewcommentevent
+type PullRequestReviewCommentEvent struct {
+	// Action is the action that was performed on the comment.
+	// Possible values are: "created", "edited", "deleted".
+	Action      *string             `json:"action,omitempty"`
+	PullRequest *PullRequest        `json:"pull_request,omitempty"`
+	Comment     *PullRequestComment `json:"comment,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Changes      *EditChange   `json:"changes,omitempty"`
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// PushEvent represents a git push to a GitHub repository.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#pushevent
+type PushEvent struct {
+	PushID       *int64            `json:"push_id,omitempty"`
+	Head         *string           `json:"head,omitempty"`
+	Ref          *string           `json:"ref,omitempty"`
+	Size         *int              `json:"size,omitempty"`
+	Commits      []PushEventCommit `json:"commits,omitempty"`
+	Before       *string           `json:"before,omitempty"`
+	DistinctSize *int              `json:"distinct_size,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	After        *string              `json:"after,omitempty"`
+	Created      *bool                `json:"created,omitempty"`
+	Deleted      *bool                `json:"deleted,omitempty"`
+	Forced       *bool                `json:"forced,omitempty"`
+	BaseRef      *string              `json:"base_ref,omitempty"`
+	Compare      *string              `json:"compare,omitempty"`
+	Repo         *PushEventRepository `json:"repository,omitempty"`
+	HeadCommit   *PushEventCommit     `json:"head_commit,omitempty"`
+	Pusher       *User                `json:"pusher,omitempty"`
+	Sender       *User                `json:"sender,omitempty"`
+	Installation *Installation        `json:"installation,omitempty"`
+}
+
+func (p PushEvent) String() string {
+	return Stringify(p)
+}
+
+// PushEventCommit represents a git commit in a GitHub PushEvent.
+type PushEventCommit struct {
+	Message  *string       `json:"message,omitempty"`
+	Author   *CommitAuthor `json:"author,omitempty"`
+	URL      *string       `json:"url,omitempty"`
+	Distinct *bool         `json:"distinct,omitempty"`
+
+	// The following fields are only populated by Events API.
+	SHA *string `json:"sha,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	ID        *string       `json:"id,omitempty"`
+	TreeID    *string       `json:"tree_id,omitempty"`
+	Timestamp *Timestamp    `json:"timestamp,omitempty"`
+	Committer *CommitAuthor `json:"committer,omitempty"`
+	Added     []string      `json:"added,omitempty"`
+	Removed   []string      `json:"removed,omitempty"`
+	Modified  []string      `json:"modified,omitempty"`
+}
+
+func (p PushEventCommit) String() string {
+	return Stringify(p)
+}
+
+// PushEventRepository represents the repo object in a PushEvent payload.
+type PushEventRepository struct {
+	ID              *int64              `json:"id,omitempty"`
+	NodeID          *string             `json:"node_id,omitempty"`
+	Name            *string             `json:"name,omitempty"`
+	FullName        *string             `json:"full_name,omitempty"`
+	Owner           *PushEventRepoOwner `json:"owner,omitempty"`
+	Private         *bool               `json:"private,omitempty"`
+	Description     *string             `json:"description,omitempty"`
+	Fork            *bool               `json:"fork,omitempty"`
+	CreatedAt       *Timestamp          `json:"created_at,omitempty"`
+	PushedAt        *Timestamp          `json:"pushed_at,omitempty"`
+	UpdatedAt       *Timestamp          `json:"updated_at,omitempty"`
+	Homepage        *string             `json:"homepage,omitempty"`
+	Size            *int                `json:"size,omitempty"`
+	StargazersCount *int                `json:"stargazers_count,omitempty"`
+	WatchersCount   *int                `json:"watchers_count,omitempty"`
+	Language        *string             `json:"language,omitempty"`
+	HasIssues       *bool               `json:"has_issues,omitempty"`
+	HasDownloads    *bool               `json:"has_downloads,omitempty"`
+	HasWiki         *bool               `json:"has_wiki,omitempty"`
+	HasPages        *bool               `json:"has_pages,omitempty"`
+	ForksCount      *int                `json:"forks_count,omitempty"`
+	OpenIssuesCount *int                `json:"open_issues_count,omitempty"`
+	DefaultBranch   *string             `json:"default_branch,omitempty"`
+	MasterBranch    *string             `json:"master_branch,omitempty"`
+	Organization    *string             `json:"organization,omitempty"`
+	URL             *string             `json:"url,omitempty"`
+	ArchiveURL      *string             `json:"archive_url,omitempty"`
+	HTMLURL         *string             `json:"html_url,omitempty"`
+	StatusesURL     *string             `json:"statuses_url,omitempty"`
+	GitURL          *string             `json:"git_url,omitempty"`
+	SSHURL          *string             `json:"ssh_url,omitempty"`
+	CloneURL        *string             `json:"clone_url,omitempty"`
+	SVNURL          *string             `json:"svn_url,omitempty"`
+}
+
+// PushEventRepoOwner is a basic representation of user/org in a PushEvent payload.
+type PushEventRepoOwner struct {
+	Name  *string `json:"name,omitempty"`
+	Email *string `json:"email,omitempty"`
+}
+
+// ReleaseEvent is triggered when a release is published.
+// The Webhook event name is "release".
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#releaseevent
+type ReleaseEvent struct {
+	// Action is the action that was performed. Possible value is: "published".
+	Action  *string            `json:"action,omitempty"`
+	Release *RepositoryRelease `json:"release,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// RepositoryEvent is triggered when a repository is created.
+// The Webhook event name is "repository".
+//
+// Events of this type are not visible in timelines, they are only used to
+// trigger organization webhooks.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#repositoryevent
+type RepositoryEvent struct {
+	// Action is the action that was performed. Possible values are: "created", "deleted",
+	// "publicized", "privatized".
+	Action *string     `json:"action,omitempty"`
+	Repo   *Repository `json:"repository,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Org          *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// StatusEvent is triggered when the status of a Git commit changes.
+// The Webhook event name is "status".
+//
+// Events of this type are not visible in timelines, they are only used to
+// trigger hooks.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#statusevent
+type StatusEvent struct {
+	SHA *string `json:"sha,omitempty"`
+	// State is the new state. Possible values are: "pending", "success", "failure", "error".
+	State       *string   `json:"state,omitempty"`
+	Description *string   `json:"description,omitempty"`
+	TargetURL   *string   `json:"target_url,omitempty"`
+	Branches    []*Branch `json:"branches,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	ID           *int64            `json:"id,omitempty"`
+	Name         *string           `json:"name,omitempty"`
+	Context      *string           `json:"context,omitempty"`
+	Commit       *RepositoryCommit `json:"commit,omitempty"`
+	CreatedAt    *Timestamp        `json:"created_at,omitempty"`
+	UpdatedAt    *Timestamp        `json:"updated_at,omitempty"`
+	Repo         *Repository       `json:"repository,omitempty"`
+	Sender       *User             `json:"sender,omitempty"`
+	Installation *Installation     `json:"installation,omitempty"`
+}
+
+// TeamEvent is triggered when an organization's team is created, modified or deleted.
+// The Webhook event name is "team".
+//
+// Events of this type are not visible in timelines. These events are only used
+// to trigger hooks.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#teamevent
+type TeamEvent struct {
+	Action  *string     `json:"action,omitempty"`
+	Team    *Team       `json:"team,omitempty"`
+	Changes *TeamChange `json:"changes,omitempty"`
+	Repo    *Repository `json:"repository,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Org          *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// TeamAddEvent is triggered when a repository is added to a team.
+// The Webhook event name is "team_add".
+//
+// Events of this type are not visible in timelines. These events are only used
+// to trigger hooks.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#teamaddevent
+type TeamAddEvent struct {
+	Team *Team       `json:"team,omitempty"`
+	Repo *Repository `json:"repository,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Org          *Organization `json:"organization,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
+
+// WatchEvent is related to starring a repository, not watching. See this API
+// blog post for an explanation: https://developer.github.com/changes/2012-09-05-watcher-api/
+//
+// The event’s actor is the user who starred a repository, and the event’s
+// repository is the repository that was starred.
+//
+// GitHub API docs: https://developer.github.com/v3/activity/events/types/#watchevent
+type WatchEvent struct {
+	// Action is the action that was performed. Possible value is: "started".
+	Action *string `json:"action,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo         *Repository   `json:"repository,omitempty"`
+	Sender       *User         `json:"sender,omitempty"`
+	Installation *Installation `json:"installation,omitempty"`
+}
--- a/vendor/github.com/google/go-github/v28/github/gists.go
+++ b/vendor/github.com/google/go-github/v28/github/gists.go
@@ -341,13 +341,8 @@ func (s *GistsService) Fork(ctx context.Context, id string) (*Gist, *Response, e
 // ListForks lists forks of a gist.
 //
 // GitHub API docs: https://developer.github.com/v3/gists/#list-gist-forks
-func (s *GistsService) ListForks(ctx context.Context, id string, opt *ListOptions) ([]*GistFork, *Response, error) {
+func (s *GistsService) ListForks(ctx context.Context, id string) ([]*GistFork, *Response, error) {
 	u := fmt.Sprintf("gists/%v/forks", id)
-	u, err := addOptions(u, opt)
-	if err != nil {
-		return nil, nil, err
-	}
-
 	req, err := s.client.NewRequest("GET", u, nil)
 	if err != nil {
 		return nil, nil, err
--- a/vendor/github.com/google/go-github/v28/github/gists_comments.go
+++ b/vendor/github.com/google/go-github/v28/github/gists_comments.go
--- a/vendor/github.com/google/go-github/v28/github/git.go
+++ b/vendor/github.com/google/go-github/v28/github/git.go
--- a/vendor/github.com/google/go-github/v28/github/git_blobs.go
+++ b/vendor/github.com/google/go-github/v28/github/git_blobs.go
--- a/vendor/github.com/google/go-github/github/git_commits.go
+++ b/vendor/github.com/google/go-github/github/git_commits.go
@@ -0,0 +1,134 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+	"time"
+)
+
+// SignatureVerification represents GPG signature verification.
+type SignatureVerification struct {
+	Verified  *bool   `json:"verified,omitempty"`
+	Reason    *string `json:"reason,omitempty"`
+	Signature *string `json:"signature,omitempty"`
+	Payload   *string `json:"payload,omitempty"`
+}
+
+// Commit represents a GitHub commit.
+type Commit struct {
+	SHA          *string                `json:"sha,omitempty"`
+	Author       *CommitAuthor          `json:"author,omitempty"`
+	Committer    *CommitAuthor          `json:"committer,omitempty"`
+	Message      *string                `json:"message,omitempty"`
+	Tree         *Tree                  `json:"tree,omitempty"`
+	Parents      []Commit               `json:"parents,omitempty"`
+	Stats        *CommitStats           `json:"stats,omitempty"`
+	HTMLURL      *string                `json:"html_url,omitempty"`
+	URL          *string                `json:"url,omitempty"`
+	Verification *SignatureVerification `json:"verification,omitempty"`
+	NodeID       *string                `json:"node_id,omitempty"`
+
+	// CommentCount is the number of GitHub comments on the commit. This
+	// is only populated for requests that fetch GitHub data like
+	// Pulls.ListCommits, Repositories.ListCommits, etc.
+	CommentCount *int `json:"comment_count,omitempty"`
+}
+
+func (c Commit) String() string {
+	return Stringify(c)
+}
+
+// CommitAuthor represents the author or committer of a commit. The commit
+// author may not correspond to a GitHub User.
+type CommitAuthor struct {
+	Date  *time.Time `json:"date,omitempty"`
+	Name  *string    `json:"name,omitempty"`
+	Email *string    `json:"email,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Login *string `json:"username,omitempty"` // Renamed for go-github consistency.
+}
+
+func (c CommitAuthor) String() string {
+	return Stringify(c)
+}
+
+// GetCommit fetchs the Commit object for a given SHA.
+//
+// GitHub API docs: https://developer.github.com/v3/git/commits/#get-a-commit
+func (s *GitService) GetCommit(ctx context.Context, owner string, repo string, sha string) (*Commit, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/git/commits/%v", owner, repo, sha)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeGitSigningPreview)
+
+	c := new(Commit)
+	resp, err := s.client.Do(ctx, req, c)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return c, resp, nil
+}
+
+// createCommit represents the body of a CreateCommit request.
+type createCommit struct {
+	Author    *CommitAuthor `json:"author,omitempty"`
+	Committer *CommitAuthor `json:"committer,omitempty"`
+	Message   *string       `json:"message,omitempty"`
+	Tree      *string       `json:"tree,omitempty"`
+	Parents   []string      `json:"parents,omitempty"`
+}
+
+// CreateCommit creates a new commit in a repository.
+// commit must not be nil.
+//
+// The commit.Committer is optional and will be filled with the commit.Author
+// data if omitted. If the commit.Author is omitted, it will be filled in with
+// the authenticated user’s information and the current date.
+//
+// GitHub API docs: https://developer.github.com/v3/git/commits/#create-a-commit
+func (s *GitService) CreateCommit(ctx context.Context, owner string, repo string, commit *Commit) (*Commit, *Response, error) {
+	if commit == nil {
+		return nil, nil, fmt.Errorf("commit must be provided")
+	}
+
+	u := fmt.Sprintf("repos/%v/%v/git/commits", owner, repo)
+
+	parents := make([]string, len(commit.Parents))
+	for i, parent := range commit.Parents {
+		parents[i] = *parent.SHA
+	}
+
+	body := &createCommit{
+		Author:    commit.Author,
+		Committer: commit.Committer,
+		Message:   commit.Message,
+		Parents:   parents,
+	}
+	if commit.Tree != nil {
+		body.Tree = commit.Tree.SHA
+	}
+
+	req, err := s.client.NewRequest("POST", u, body)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	c := new(Commit)
+	resp, err := s.client.Do(ctx, req, c)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return c, resp, nil
+}
--- a/vendor/github.com/google/go-github/v28/github/git_refs.go
+++ b/vendor/github.com/google/go-github/v28/github/git_refs.go
@@ -10,7 +10,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"net/url"
 	"strings"
 )

@@ -58,7 +57,7 @@ type updateRefRequest struct {
 // GitHub API docs: https://developer.github.com/v3/git/refs/#get-a-reference
 func (s *GitService) GetRef(ctx context.Context, owner string, repo string, ref string) (*Reference, *Response, error) {
 	ref = strings.TrimPrefix(ref, "refs/")
-	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, url.QueryEscape(ref))
+	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, ref)
 	req, err := s.client.NewRequest("GET", u, nil)
 	if err != nil {
 		return nil, nil, err
@@ -68,10 +67,7 @@ func (s *GitService) GetRef(ctx context.Context, owner string, repo string, ref
 	resp, err := s.client.Do(ctx, req, r)
 	if _, ok := err.(*json.UnmarshalTypeError); ok {
 		// Multiple refs, means there wasn't an exact match.
-		return nil, resp, errors.New("multiple matches found for this ref")
-	} else if _, ok := err.(*ErrorResponse); ok && resp.StatusCode == 404 {
-		// No ref, there was no match for the ref
-		return nil, resp, errors.New("no match found for this ref")
+		return nil, resp, errors.New("no exact match found for this ref")
 	} else if err != nil {
 		return nil, resp, err
 	}
@@ -92,7 +88,7 @@ func (s *GitService) GetRef(ctx context.Context, owner string, repo string, ref
 // GitHub API docs: https://developer.github.com/v3/git/refs/#get-a-reference
 func (s *GitService) GetRefs(ctx context.Context, owner string, repo string, ref string) ([]*Reference, *Response, error) {
 	ref = strings.TrimPrefix(ref, "refs/")
-	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, url.QueryEscape(ref))
+	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, ref)
 	req, err := s.client.NewRequest("GET", u, nil)
 	if err != nil {
 		return nil, nil, err
@@ -212,7 +208,7 @@ func (s *GitService) UpdateRef(ctx context.Context, owner string, repo string, r
 // GitHub API docs: https://developer.github.com/v3/git/refs/#delete-a-reference
 func (s *GitService) DeleteRef(ctx context.Context, owner string, repo string, ref string) (*Response, error) {
 	ref = strings.TrimPrefix(ref, "refs/")
-	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, url.QueryEscape(ref))
+	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, ref)
 	req, err := s.client.NewRequest("DELETE", u, nil)
 	if err != nil {
 		return nil, err
--- a/vendor/github.com/google/go-github/github/git_tags.go
+++ b/vendor/github.com/google/go-github/github/git_tags.go
@@ -0,0 +1,79 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+)
+
+// Tag represents a tag object.
+type Tag struct {
+	Tag          *string                `json:"tag,omitempty"`
+	SHA          *string                `json:"sha,omitempty"`
+	URL          *string                `json:"url,omitempty"`
+	Message      *string                `json:"message,omitempty"`
+	Tagger       *CommitAuthor          `json:"tagger,omitempty"`
+	Object       *GitObject             `json:"object,omitempty"`
+	Verification *SignatureVerification `json:"verification,omitempty"`
+	NodeID       *string                `json:"node_id,omitempty"`
+}
+
+// createTagRequest represents the body of a CreateTag request. This is mostly
+// identical to Tag with the exception that the object SHA and Type are
+// top-level fields, rather than being nested inside a JSON object.
+type createTagRequest struct {
+	Tag     *string       `json:"tag,omitempty"`
+	Message *string       `json:"message,omitempty"`
+	Object  *string       `json:"object,omitempty"`
+	Type    *string       `json:"type,omitempty"`
+	Tagger  *CommitAuthor `json:"tagger,omitempty"`
+}
+
+// GetTag fetchs a tag from a repo given a SHA.
+//
+// GitHub API docs: https://developer.github.com/v3/git/tags/#get-a-tag
+func (s *GitService) GetTag(ctx context.Context, owner string, repo string, sha string) (*Tag, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/git/tags/%v", owner, repo, sha)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeGitSigningPreview)
+
+	tag := new(Tag)
+	resp, err := s.client.Do(ctx, req, tag)
+	return tag, resp, err
+}
+
+// CreateTag creates a tag object.
+//
+// GitHub API docs: https://developer.github.com/v3/git/tags/#create-a-tag-object
+func (s *GitService) CreateTag(ctx context.Context, owner string, repo string, tag *Tag) (*Tag, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/git/tags", owner, repo)
+
+	// convert Tag into a createTagRequest
+	tagRequest := &createTagRequest{
+		Tag:     tag.Tag,
+		Message: tag.Message,
+		Tagger:  tag.Tagger,
+	}
+	if tag.Object != nil {
+		tagRequest.Object = tag.Object.SHA
+		tagRequest.Type = tag.Object.Type
+	}
+
+	req, err := s.client.NewRequest("POST", u, tagRequest)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	t := new(Tag)
+	resp, err := s.client.Do(ctx, req, t)
+	return t, resp, err
+}
--- a/vendor/github.com/google/go-github/v28/github/git_trees.go
+++ b/vendor/github.com/google/go-github/v28/github/git_trees.go
--- a/vendor/github.com/google/go-github/v28/github/github-accessors.go
+++ b/vendor/github.com/google/go-github/v28/github/github-accessors.go
--- a/vendor/github.com/google/go-github/v28/github/github.go
+++ b/vendor/github.com/google/go-github/v28/github/github.go
@@ -4,7 +4,6 @@
 // license that can be found in the LICENSE file.

 //go:generate go run gen-accessors.go
-//go:generate go run gen-stringify-test.go

 package github

@@ -55,18 +54,21 @@ const (
 	// https://developer.github.com/changes/2016-04-06-deployment-and-deployment-status-enhancements/
 	mediaTypeDeploymentStatusPreview = "application/vnd.github.ant-man-preview+json"

-	// https://developer.github.com/changes/2018-10-16-deployments-environments-states-and-auto-inactive-updates/
-	mediaTypeExpandDeploymentStatusPreview = "application/vnd.github.flash-preview+json"
-
 	// https://developer.github.com/changes/2016-02-19-source-import-preview-api/
 	mediaTypeImportPreview = "application/vnd.github.barred-rock-preview"

 	// https://developer.github.com/changes/2016-05-12-reactions-api-preview/
 	mediaTypeReactionsPreview = "application/vnd.github.squirrel-girl-preview"

+	// https://developer.github.com/changes/2016-04-04-git-signing-api-preview/
+	mediaTypeGitSigningPreview = "application/vnd.github.cryptographer-preview+json"
+
 	// https://developer.github.com/changes/2016-05-23-timeline-preview-api/
 	mediaTypeTimelinePreview = "application/vnd.github.mockingbird-preview+json"

+	// https://developer.github.com/changes/2016-06-14-repository-invitations/
+	mediaTypeRepositoryInvitationsPreview = "application/vnd.github.swamp-thing-preview+json"
+
 	// https://developer.github.com/changes/2016-07-06-github-pages-preiew-api/
 	mediaTypePagesPreview = "application/vnd.github.mister-fantastic-preview+json"

@@ -120,42 +122,6 @@ const (

 	// https://developer.github.com/enterprise/2.13/v3/repos/pre_receive_hooks/
 	mediaTypePreReceiveHooksPreview = "application/vnd.github.eye-scream-preview"
-
-	// https://developer.github.com/changes/2018-02-22-protected-branches-required-signatures/
-	mediaTypeSignaturePreview = "application/vnd.github.zzzax-preview+json"
-
-	// https://developer.github.com/changes/2018-09-05-project-card-events/
-	mediaTypeProjectCardDetailsPreview = "application/vnd.github.starfox-preview+json"
-
-	// https://developer.github.com/changes/2018-12-18-interactions-preview/
-	mediaTypeInteractionRestrictionsPreview = "application/vnd.github.sombra-preview+json"
-
-	// https://developer.github.com/changes/2019-02-14-draft-pull-requests/
-	mediaTypeDraftPreview = "application/vnd.github.shadow-cat-preview+json"
-
-	// https://developer.github.com/changes/2019-03-14-enabling-disabling-pages/
-	mediaTypeEnablePagesAPIPreview = "application/vnd.github.switcheroo-preview+json"
-
-	// https://developer.github.com/changes/2019-04-24-vulnerability-alerts/
-	mediaTypeRequiredVulnerabilityAlertsPreview = "application/vnd.github.dorian-preview+json"
-
-	// https://developer.github.com/changes/2019-06-04-automated-security-fixes/
-	mediaTypeRequiredAutomatedSecurityFixesPreview = "application/vnd.github.london-preview+json"
-
-	// https://developer.github.com/changes/2019-05-29-update-branch-api/
-	mediaTypeUpdatePullRequestBranchPreview = "application/vnd.github.lydian-preview+json"
-
-	// https://developer.github.com/changes/2019-04-11-pulls-branches-for-commit/
-	mediaTypeListPullsOrBranchesForCommitPreview = "application/vnd.github.groot-preview+json"
-
-	// https://developer.github.com/changes/2019-06-12-team-sync/
-	mediaTypeTeamSyncPreview = "application/vnd.github.team-sync-preview+json"
-
-	// https://developer.github.com/v3/previews/#repository-creation-permissions
-	mediaTypeMemberAllowedRepoCreationTypePreview = "application/vnd.github.surtur-preview+json"
-
-	// https://developer.github.com/v3/previews/#create-and-use-repository-templates
-	mediaTypeRepositoryTemplatePreview = "application/vnd.github.baptiste-preview+json"
 )

 // A Client manages communication with the GitHub API.
@@ -188,7 +154,6 @@ type Client struct {
 	Gists          *GistsService
 	Git            *GitService
 	Gitignores     *GitignoresService
-	Interactions   *InteractionsService
 	Issues         *IssuesService
 	Licenses       *LicensesService
 	Marketplace    *MarketplaceService
@@ -219,9 +184,7 @@ type ListOptions struct {

 // UploadOptions specifies the parameters to methods that support uploads.
 type UploadOptions struct {
-	Name      string `url:"name,omitempty"`
-	Label     string `url:"label,omitempty"`
-	MediaType string `url:"-"`
+	Name string `url:"name,omitempty"`
 }

 // RawType represents type of raw format of a request instead of JSON.
@@ -263,12 +226,12 @@ func addOptions(s string, opt interface{}) (string, error) {
 }

 // NewClient returns a new GitHub API client. If a nil httpClient is
-// provided, a new http.Client will be used. To use API methods which require
+// provided, http.DefaultClient will be used. To use API methods which require
 // authentication, provide an http.Client that will perform the authentication
 // for you (such as that provided by the golang.org/x/oauth2 library).
 func NewClient(httpClient *http.Client) *Client {
 	if httpClient == nil {
-		httpClient = &http.Client{}
+		httpClient = http.DefaultClient
 	}
 	baseURL, _ := url.Parse(defaultBaseURL)
 	uploadURL, _ := url.Parse(uploadBaseURL)
@@ -283,7 +246,6 @@ func NewClient(httpClient *http.Client) *Client {
 	c.Gists = (*GistsService)(&c.common)
 	c.Git = (*GitService)(&c.common)
 	c.Gitignores = (*GitignoresService)(&c.common)
-	c.Interactions = (*InteractionsService)(&c.common)
 	c.Issues = (*IssuesService)(&c.common)
 	c.Licenses = (*LicensesService)(&c.common)
 	c.Marketplace = &MarketplaceService{client: c}
@@ -302,7 +264,7 @@ func NewClient(httpClient *http.Client) *Client {
 // NewEnterpriseClient returns a new GitHub API client with provided
 // base URL and upload URL (often the same URL).
 // If either URL does not have a trailing slash, one is added automatically.
-// If a nil httpClient is provided, a new http.Client will be used.
+// If a nil httpClient is provided, http.DefaultClient will be used.
 //
 // Note that NewEnterpriseClient is a convenience helper only;
 // its behavior is equivalent to using NewClient, followed by setting
@@ -413,9 +375,7 @@ type Response struct {
 	FirstPage int
 	LastPage  int

-	// Explicitly specify the Rate type so Rate's String() receiver doesn't
-	// propagate to Response.
-	Rate Rate
+	Rate
 }

 // newResponse creates a new Response for the provided http.Response.
@@ -540,23 +500,13 @@ func (c *Client) Do(ctx context.Context, req *http.Request, v interface{}) (*Res

 	err = CheckResponse(resp)
 	if err != nil {
-		// Special case for AcceptedErrors. If an AcceptedError
-		// has been encountered, the response's payload will be
-		// added to the AcceptedError and returned.
-		//
-		// Issue #1022
-		aerr, ok := err.(*AcceptedError)
-		if ok {
-			b, readErr := ioutil.ReadAll(resp.Body)
-			if readErr != nil {
-				return response, readErr
-			}
-
-			aerr.Raw = b
-			return response, aerr
+		// Even though there was an error, we still return the response
+		// in case the caller wants to inspect it further.
+		// However, if the error is AcceptedError, decode it below before
+		// returning from this function and closing the response body.
+		if _, ok := err.(*AcceptedError); !ok {
+			return response, err
 		}
-
-		return response, err
 	}

 	if v != nil {
@@ -649,7 +599,7 @@ type RateLimitError struct {
 func (r *RateLimitError) Error() string {
 	return fmt.Sprintf("%v %v: %d %v %v",
 		r.Response.Request.Method, sanitizeURL(r.Response.Request.URL),
-		r.Response.StatusCode, r.Message, formatRateReset(time.Until(r.Rate.Reset.Time)))
+		r.Response.StatusCode, r.Message, formatRateReset(r.Rate.Reset.Time.Sub(time.Now())))
 }

 // AcceptedError occurs when GitHub returns 202 Accepted response with an
@@ -658,10 +608,7 @@ func (r *RateLimitError) Error() string {
 // Technically, 202 Accepted is not a real error, it's just used to
 // indicate that results are not ready yet, but should be available soon.
 // The request can be repeated after some time.
-type AcceptedError struct {
-	// Raw contains the response body.
-	Raw []byte
-}
+type AcceptedError struct{}

 func (*AcceptedError) Error() string {
 	return "job scheduled on GitHub side; try again later"
--- a/vendor/github.com/google/go-github/v28/github/gitignore.go
+++ b/vendor/github.com/google/go-github/v28/github/gitignore.go
--- a/vendor/github.com/google/go-github/v28/github/issues.go
+++ b/vendor/github.com/google/go-github/v28/github/issues.go
@@ -228,7 +228,7 @@ func (s *IssuesService) ListByRepo(ctx context.Context, owner string, repo strin
 	}

 	// TODO: remove custom Accept headers when APIs fully launch.
-	acceptHeaders := []string{mediaTypeReactionsPreview, mediaTypeLabelDescriptionSearchPreview, mediaTypeIntegrationPreview}
+	acceptHeaders := []string{mediaTypeReactionsPreview, mediaTypeLabelDescriptionSearchPreview, mediaTypeLockReasonPreview}
 	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))

 	var issues []*Issue
--- a/vendor/github.com/google/go-github/v28/github/issues_assignees.go
+++ b/vendor/github.com/google/go-github/v28/github/issues_assignees.go
--- a/vendor/github.com/google/go-github/v28/github/issues_comments.go
+++ b/vendor/github.com/google/go-github/v28/github/issues_comments.go
@@ -14,7 +14,6 @@ import (
 // IssueComment represents a comment left on an issue.
 type IssueComment struct {
 	ID        *int64     `json:"id,omitempty"`
-	NodeID    *string    `json:"node_id,omitempty"`
 	Body      *string    `json:"body,omitempty"`
 	User      *User      `json:"user,omitempty"`
 	Reactions *Reactions `json:"reactions,omitempty"`
--- a/vendor/github.com/google/go-github/github/issues_events.go
+++ b/vendor/github.com/google/go-github/github/issues_events.go
@@ -0,0 +1,158 @@
+// Copyright 2014 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+	"time"
+)
+
+// IssueEvent represents an event that occurred around an Issue or Pull Request.
+type IssueEvent struct {
+	ID  *int64  `json:"id,omitempty"`
+	URL *string `json:"url,omitempty"`
+
+	// The User that generated this event.
+	Actor *User `json:"actor,omitempty"`
+
+	// Event identifies the actual type of Event that occurred. Possible
+	// values are:
+	//
+	//     closed
+	//       The Actor closed the issue.
+	//       If the issue was closed by commit message, CommitID holds the SHA1 hash of the commit.
+	//
+	//     merged
+	//       The Actor merged into master a branch containing a commit mentioning the issue.
+	//       CommitID holds the SHA1 of the merge commit.
+	//
+	//     referenced
+	//       The Actor committed to master a commit mentioning the issue in its commit message.
+	//       CommitID holds the SHA1 of the commit.
+	//
+	//     reopened, unlocked
+	//       The Actor did that to the issue.
+	//
+	//     locked
+	//       The Actor locked the issue.
+	//       LockReason holds the reason of locking the issue (if provided while locking).
+	//
+	//     renamed
+	//       The Actor changed the issue title from Rename.From to Rename.To.
+	//
+	//     mentioned
+	//       Someone unspecified @mentioned the Actor [sic] in an issue comment body.
+	//
+	//     assigned, unassigned
+	//       The Assigner assigned the issue to or removed the assignment from the Assignee.
+	//
+	//     labeled, unlabeled
+	//       The Actor added or removed the Label from the issue.
+	//
+	//     milestoned, demilestoned
+	//       The Actor added or removed the issue from the Milestone.
+	//
+	//     subscribed, unsubscribed
+	//       The Actor subscribed to or unsubscribed from notifications for an issue.
+	//
+	//     head_ref_deleted, head_ref_restored
+	//       The pull request’s branch was deleted or restored.
+	//
+	Event *string `json:"event,omitempty"`
+
+	CreatedAt *time.Time `json:"created_at,omitempty"`
+	Issue     *Issue     `json:"issue,omitempty"`
+
+	// Only present on certain events; see above.
+	Assignee   *User      `json:"assignee,omitempty"`
+	Assigner   *User      `json:"assigner,omitempty"`
+	CommitID   *string    `json:"commit_id,omitempty"`
+	Milestone  *Milestone `json:"milestone,omitempty"`
+	Label      *Label     `json:"label,omitempty"`
+	Rename     *Rename    `json:"rename,omitempty"`
+	LockReason *string    `json:"lock_reason,omitempty"`
+}
+
+// ListIssueEvents lists events for the specified issue.
+//
+// GitHub API docs: https://developer.github.com/v3/issues/events/#list-events-for-an-issue
+func (s *IssuesService) ListIssueEvents(ctx context.Context, owner, repo string, number int, opt *ListOptions) ([]*IssueEvent, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/issues/%v/events", owner, repo, number)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req.Header.Set("Accept", mediaTypeLockReasonPreview)
+
+	var events []*IssueEvent
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
+
+// ListRepositoryEvents lists events for the specified repository.
+//
+// GitHub API docs: https://developer.github.com/v3/issues/events/#list-events-for-a-repository
+func (s *IssuesService) ListRepositoryEvents(ctx context.Context, owner, repo string, opt *ListOptions) ([]*IssueEvent, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/issues/events", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var events []*IssueEvent
+	resp, err := s.client.Do(ctx, req, &events)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return events, resp, nil
+}
+
+// GetEvent returns the specified issue event.
+//
+// GitHub API docs: https://developer.github.com/v3/issues/events/#get-a-single-event
+func (s *IssuesService) GetEvent(ctx context.Context, owner, repo string, id int64) (*IssueEvent, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/issues/events/%v", owner, repo, id)
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	event := new(IssueEvent)
+	resp, err := s.client.Do(ctx, req, event)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return event, resp, nil
+}
+
+// Rename contains details for 'renamed' events.
+type Rename struct {
+	From *string `json:"from,omitempty"`
+	To   *string `json:"to,omitempty"`
+}
+
+func (r Rename) String() string {
+	return Stringify(r)
+}
--- a/vendor/github.com/google/go-github/v28/github/issues_labels.go
+++ b/vendor/github.com/google/go-github/v28/github/issues_labels.go
--- a/vendor/github.com/google/go-github/v28/github/issues_milestones.go
+++ b/vendor/github.com/google/go-github/v28/github/issues_milestones.go
--- a/vendor/github.com/google/go-github/github/issues_timeline.go
+++ b/vendor/github.com/google/go-github/github/issues_timeline.go
@@ -0,0 +1,149 @@
+// Copyright 2016 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+	"time"
+)
+
+// Timeline represents an event that occurred around an Issue or Pull Request.
+//
+// It is similar to an IssueEvent but may contain more information.
+// GitHub API docs: https://developer.github.com/v3/issues/timeline/
+type Timeline struct {
+	ID        *int64  `json:"id,omitempty"`
+	URL       *string `json:"url,omitempty"`
+	CommitURL *string `json:"commit_url,omitempty"`
+
+	// The User object that generated the event.
+	Actor *User `json:"actor,omitempty"`
+
+	// Event identifies the actual type of Event that occurred. Possible values
+	// are:
+	//
+	//     assigned
+	//       The issue was assigned to the assignee.
+	//
+	//     closed
+	//       The issue was closed by the actor. When the commit_id is present, it
+	//       identifies the commit that closed the issue using "closes / fixes #NN"
+	//       syntax.
+	//
+	//     commented
+	//       A comment was added to the issue.
+	//
+	//     committed
+	//       A commit was added to the pull request's 'HEAD' branch. Only provided
+	//       for pull requests.
+	//
+	//     cross-referenced
+	//       The issue was referenced from another issue. The 'source' attribute
+	//       contains the 'id', 'actor', and 'url' of the reference's source.
+	//
+	//     demilestoned
+	//       The issue was removed from a milestone.
+	//
+	//     head_ref_deleted
+	//       The pull request's branch was deleted.
+	//
+	//     head_ref_restored
+	//       The pull request's branch was restored.
+	//
+	//     labeled
+	//       A label was added to the issue.
+	//
+	//     locked
+	//       The issue was locked by the actor.
+	//
+	//     mentioned
+	//       The actor was @mentioned in an issue body.
+	//
+	//     merged
+	//       The issue was merged by the actor. The 'commit_id' attribute is the
+	//       SHA1 of the HEAD commit that was merged.
+	//
+	//     milestoned
+	//       The issue was added to a milestone.
+	//
+	//     referenced
+	//       The issue was referenced from a commit message. The 'commit_id'
+	//       attribute is the commit SHA1 of where that happened.
+	//
+	//     renamed
+	//       The issue title was changed.
+	//
+	//     reopened
+	//       The issue was reopened by the actor.
+	//
+	//     subscribed
+	//       The actor subscribed to receive notifications for an issue.
+	//
+	//     unassigned
+	//       The assignee was unassigned from the issue.
+	//
+	//     unlabeled
+	//       A label was removed from the issue.
+	//
+	//     unlocked
+	//       The issue was unlocked by the actor.
+	//
+	//     unsubscribed
+	//       The actor unsubscribed to stop receiving notifications for an issue.
+	//
+	Event *string `json:"event,omitempty"`
+
+	// The string SHA of a commit that referenced this Issue or Pull Request.
+	CommitID *string `json:"commit_id,omitempty"`
+	// The timestamp indicating when the event occurred.
+	CreatedAt *time.Time `json:"created_at,omitempty"`
+	// The Label object including `name` and `color` attributes. Only provided for
+	// 'labeled' and 'unlabeled' events.
+	Label *Label `json:"label,omitempty"`
+	// The User object which was assigned to (or unassigned from) this Issue or
+	// Pull Request. Only provided for 'assigned' and 'unassigned' events.
+	Assignee *User `json:"assignee,omitempty"`
+	// The Milestone object including a 'title' attribute.
+	// Only provided for 'milestoned' and 'demilestoned' events.
+	Milestone *Milestone `json:"milestone,omitempty"`
+	// The 'id', 'actor', and 'url' for the source of a reference from another issue.
+	// Only provided for 'cross-referenced' events.
+	Source *Source `json:"source,omitempty"`
+	// An object containing rename details including 'from' and 'to' attributes.
+	// Only provided for 'renamed' events.
+	Rename *Rename `json:"rename,omitempty"`
+}
+
+// Source represents a reference's source.
+type Source struct {
+	ID    *int64  `json:"id,omitempty"`
+	URL   *string `json:"url,omitempty"`
+	Actor *User   `json:"actor,omitempty"`
+}
+
+// ListIssueTimeline lists events for the specified issue.
+//
+// GitHub API docs: https://developer.github.com/v3/issues/timeline/#list-events-for-an-issue
+func (s *IssuesService) ListIssueTimeline(ctx context.Context, owner, repo string, number int, opt *ListOptions) ([]*Timeline, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/issues/%v/timeline", owner, repo, number)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeTimelinePreview)
+
+	var events []*Timeline
+	resp, err := s.client.Do(ctx, req, &events)
+	return events, resp, err
+}
--- a/vendor/github.com/google/go-github/v28/github/licenses.go
+++ b/vendor/github.com/google/go-github/v28/github/licenses.go
--- a/vendor/github.com/google/go-github/github/messages.go
+++ b/vendor/github.com/google/go-github/github/messages.go
@@ -0,0 +1,247 @@
+// Copyright 2016 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This file provides functions for validating payloads from GitHub Webhooks.
+// GitHub API docs: https://developer.github.com/webhooks/securing/#validating-payloads-from-github
+
+package github
+
+import (
+	"crypto/hmac"
+	"crypto/sha1"
+	"crypto/sha256"
+	"crypto/sha512"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"hash"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strings"
+)
+
+const (
+	// sha1Prefix is the prefix used by GitHub before the HMAC hexdigest.
+	sha1Prefix = "sha1"
+	// sha256Prefix and sha512Prefix are provided for future compatibility.
+	sha256Prefix = "sha256"
+	sha512Prefix = "sha512"
+	// signatureHeader is the GitHub header key used to pass the HMAC hexdigest.
+	signatureHeader = "X-Hub-Signature"
+	// eventTypeHeader is the GitHub header key used to pass the event type.
+	eventTypeHeader = "X-Github-Event"
+	// deliveryIDHeader is the GitHub header key used to pass the unique ID for the webhook event.
+	deliveryIDHeader = "X-Github-Delivery"
+)
+
+var (
+	// eventTypeMapping maps webhooks types to their corresponding go-github struct types.
+	eventTypeMapping = map[string]string{
+		"check_run":                   "CheckRunEvent",
+		"check_suite":                 "CheckSuiteEvent",
+		"commit_comment":              "CommitCommentEvent",
+		"create":                      "CreateEvent",
+		"delete":                      "DeleteEvent",
+		"deployment":                  "DeploymentEvent",
+		"deployment_status":           "DeploymentStatusEvent",
+		"fork":                        "ForkEvent",
+		"gollum":                      "GollumEvent",
+		"installation":                "InstallationEvent",
+		"installation_repositories":   "InstallationRepositoriesEvent",
+		"issue_comment":               "IssueCommentEvent",
+		"issues":                      "IssuesEvent",
+		"label":                       "LabelEvent",
+		"marketplace_purchase":        "MarketplacePurchaseEvent",
+		"member":                      "MemberEvent",
+		"membership":                  "MembershipEvent",
+		"milestone":                   "MilestoneEvent",
+		"organization":                "OrganizationEvent",
+		"org_block":                   "OrgBlockEvent",
+		"page_build":                  "PageBuildEvent",
+		"ping":                        "PingEvent",
+		"project":                     "ProjectEvent",
+		"project_card":                "ProjectCardEvent",
+		"project_column":              "ProjectColumnEvent",
+		"public":                      "PublicEvent",
+		"pull_request_review":         "PullRequestReviewEvent",
+		"pull_request_review_comment": "PullRequestReviewCommentEvent",
+		"pull_request":                "PullRequestEvent",
+		"push":                        "PushEvent",
+		"repository":                  "RepositoryEvent",
+		"release":                     "ReleaseEvent",
+		"status":                      "StatusEvent",
+		"team":                        "TeamEvent",
+		"team_add":                    "TeamAddEvent",
+		"watch":                       "WatchEvent",
+	}
+)
+
+// genMAC generates the HMAC signature for a message provided the secret key
+// and hashFunc.
+func genMAC(message, key []byte, hashFunc func() hash.Hash) []byte {
+	mac := hmac.New(hashFunc, key)
+	mac.Write(message)
+	return mac.Sum(nil)
+}
+
+// checkMAC reports whether messageMAC is a valid HMAC tag for message.
+func checkMAC(message, messageMAC, key []byte, hashFunc func() hash.Hash) bool {
+	expectedMAC := genMAC(message, key, hashFunc)
+	return hmac.Equal(messageMAC, expectedMAC)
+}
+
+// messageMAC returns the hex-decoded HMAC tag from the signature and its
+// corresponding hash function.
+func messageMAC(signature string) ([]byte, func() hash.Hash, error) {
+	if signature == "" {
+		return nil, nil, errors.New("missing signature")
+	}
+	sigParts := strings.SplitN(signature, "=", 2)
+	if len(sigParts) != 2 {
+		return nil, nil, fmt.Errorf("error parsing signature %q", signature)
+	}
+
+	var hashFunc func() hash.Hash
+	switch sigParts[0] {
+	case sha1Prefix:
+		hashFunc = sha1.New
+	case sha256Prefix:
+		hashFunc = sha256.New
+	case sha512Prefix:
+		hashFunc = sha512.New
+	default:
+		return nil, nil, fmt.Errorf("unknown hash type prefix: %q", sigParts[0])
+	}
+
+	buf, err := hex.DecodeString(sigParts[1])
+	if err != nil {
+		return nil, nil, fmt.Errorf("error decoding signature %q: %v", signature, err)
+	}
+	return buf, hashFunc, nil
+}
+
+// ValidatePayload validates an incoming GitHub Webhook event request
+// and returns the (JSON) payload.
+// The Content-Type header of the payload can be "application/json" or "application/x-www-form-urlencoded".
+// If the Content-Type is neither then an error is returned.
+// secretKey is the GitHub Webhook secret message.
+//
+// Example usage:
+//
+//     func (s *GitHubEventMonitor) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+//       payload, err := github.ValidatePayload(r, s.webhookSecretKey)
+//       if err != nil { ... }
+//       // Process payload...
+//     }
+//
+func ValidatePayload(r *http.Request, secretKey []byte) (payload []byte, err error) {
+	var body []byte // Raw body that GitHub uses to calculate the signature.
+
+	switch ct := r.Header.Get("Content-Type"); ct {
+	case "application/json":
+		var err error
+		if body, err = ioutil.ReadAll(r.Body); err != nil {
+			return nil, err
+		}
+
+		// If the content type is application/json,
+		// the JSON payload is just the original body.
+		payload = body
+
+	case "application/x-www-form-urlencoded":
+		// payloadFormParam is the name of the form parameter that the JSON payload
+		// will be in if a webhook has its content type set to application/x-www-form-urlencoded.
+		const payloadFormParam = "payload"
+
+		var err error
+		if body, err = ioutil.ReadAll(r.Body); err != nil {
+			return nil, err
+		}
+
+		// If the content type is application/x-www-form-urlencoded,
+		// the JSON payload will be under the "payload" form param.
+		form, err := url.ParseQuery(string(body))
+		if err != nil {
+			return nil, err
+		}
+		payload = []byte(form.Get(payloadFormParam))
+
+	default:
+		return nil, fmt.Errorf("Webhook request has unsupported Content-Type %q", ct)
+	}
+
+	sig := r.Header.Get(signatureHeader)
+	if err := validateSignature(sig, body, secretKey); err != nil {
+		return nil, err
+	}
+	return payload, nil
+}
+
+// validateSignature validates the signature for the given payload.
+// signature is the GitHub hash signature delivered in the X-Hub-Signature header.
+// payload is the JSON payload sent by GitHub Webhooks.
+// secretKey is the GitHub Webhook secret message.
+//
+// GitHub API docs: https://developer.github.com/webhooks/securing/#validating-payloads-from-github
+func validateSignature(signature string, payload, secretKey []byte) error {
+	messageMAC, hashFunc, err := messageMAC(signature)
+	if err != nil {
+		return err
+	}
+	if !checkMAC(payload, messageMAC, secretKey, hashFunc) {
+		return errors.New("payload signature check failed")
+	}
+	return nil
+}
+
+// WebHookType returns the event type of webhook request r.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/hooks/#webhook-headers
+func WebHookType(r *http.Request) string {
+	return r.Header.Get(eventTypeHeader)
+}
+
+// DeliveryID returns the unique delivery ID of webhook request r.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/hooks/#webhook-headers
+func DeliveryID(r *http.Request) string {
+	return r.Header.Get(deliveryIDHeader)
+}
+
+// ParseWebHook parses the event payload. For recognized event types, a
+// value of the corresponding struct type will be returned (as returned
+// by Event.ParsePayload()). An error will be returned for unrecognized event
+// types.
+//
+// Example usage:
+//
+//     func (s *GitHubEventMonitor) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+//       payload, err := github.ValidatePayload(r, s.webhookSecretKey)
+//       if err != nil { ... }
+//       event, err := github.ParseWebHook(github.WebHookType(r), payload)
+//       if err != nil { ... }
+//       switch event := event.(type) {
+//       case *github.CommitCommentEvent:
+//           processCommitCommentEvent(event)
+//       case *github.CreateEvent:
+//           processCreateEvent(event)
+//       ...
+//       }
+//     }
+//
+func ParseWebHook(messageType string, payload []byte) (interface{}, error) {
+	eventType, ok := eventTypeMapping[messageType]
+	if !ok {
+		return nil, fmt.Errorf("unknown X-Github-Event in message: %v", messageType)
+	}
+
+	event := Event{
+		Type:       &eventType,
+		RawPayload: (*json.RawMessage)(&payload),
+	}
+	return event.ParsePayload()
+}
--- a/vendor/github.com/google/go-github/v28/github/migrations.go
+++ b/vendor/github.com/google/go-github/v28/github/migrations.go
--- a/vendor/github.com/google/go-github/v28/github/migrations_source_import.go
+++ b/vendor/github.com/google/go-github/v28/github/migrations_source_import.go
--- a/vendor/github.com/google/go-github/v28/github/migrations_user.go
+++ b/vendor/github.com/google/go-github/v28/github/migrations_user.go
@@ -193,7 +193,7 @@ func (s *MigrationService) DeleteUserMigration(ctx context.Context, id int64) (*
 	return s.client.Do(ctx, req, nil)
 }

-// UnlockUserRepo will unlock a repo that was locked for migration.
+// UnlockUserRepository will unlock a repo that was locked for migration.
 // id is migration ID.
 // You should unlock each migrated repository and delete them when the migration
 // is complete and you no longer need the source data.
--- a/vendor/github.com/google/go-github/v28/github/misc.go
+++ b/vendor/github.com/google/go-github/v28/github/misc.go
--- a/vendor/github.com/google/go-github/github/orgs.go
+++ b/vendor/github.com/google/go-github/github/orgs.go
@@ -0,0 +1,197 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+	"time"
+)
+
+// OrganizationsService provides access to the organization related functions
+// in the GitHub API.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/
+type OrganizationsService service
+
+// Organization represents a GitHub organization account.
+type Organization struct {
+	Login             *string    `json:"login,omitempty"`
+	ID                *int64     `json:"id,omitempty"`
+	NodeID            *string    `json:"node_id,omitempty"`
+	AvatarURL         *string    `json:"avatar_url,omitempty"`
+	HTMLURL           *string    `json:"html_url,omitempty"`
+	Name              *string    `json:"name,omitempty"`
+	Company           *string    `json:"company,omitempty"`
+	Blog              *string    `json:"blog,omitempty"`
+	Location          *string    `json:"location,omitempty"`
+	Email             *string    `json:"email,omitempty"`
+	Description       *string    `json:"description,omitempty"`
+	PublicRepos       *int       `json:"public_repos,omitempty"`
+	PublicGists       *int       `json:"public_gists,omitempty"`
+	Followers         *int       `json:"followers,omitempty"`
+	Following         *int       `json:"following,omitempty"`
+	CreatedAt         *time.Time `json:"created_at,omitempty"`
+	UpdatedAt         *time.Time `json:"updated_at,omitempty"`
+	TotalPrivateRepos *int       `json:"total_private_repos,omitempty"`
+	OwnedPrivateRepos *int       `json:"owned_private_repos,omitempty"`
+	PrivateGists      *int       `json:"private_gists,omitempty"`
+	DiskUsage         *int       `json:"disk_usage,omitempty"`
+	Collaborators     *int       `json:"collaborators,omitempty"`
+	BillingEmail      *string    `json:"billing_email,omitempty"`
+	Type              *string    `json:"type,omitempty"`
+	Plan              *Plan      `json:"plan,omitempty"`
+
+	// API URLs
+	URL              *string `json:"url,omitempty"`
+	EventsURL        *string `json:"events_url,omitempty"`
+	HooksURL         *string `json:"hooks_url,omitempty"`
+	IssuesURL        *string `json:"issues_url,omitempty"`
+	MembersURL       *string `json:"members_url,omitempty"`
+	PublicMembersURL *string `json:"public_members_url,omitempty"`
+	ReposURL         *string `json:"repos_url,omitempty"`
+}
+
+func (o Organization) String() string {
+	return Stringify(o)
+}
+
+// Plan represents the payment plan for an account. See plans at https://github.com/plans.
+type Plan struct {
+	Name          *string `json:"name,omitempty"`
+	Space         *int    `json:"space,omitempty"`
+	Collaborators *int    `json:"collaborators,omitempty"`
+	PrivateRepos  *int    `json:"private_repos,omitempty"`
+}
+
+func (p Plan) String() string {
+	return Stringify(p)
+}
+
+// OrganizationsListOptions specifies the optional parameters to the
+// OrganizationsService.ListAll method.
+type OrganizationsListOptions struct {
+	// Since filters Organizations by ID.
+	Since int64 `url:"since,omitempty"`
+
+	// Note: Pagination is powered exclusively by the Since parameter,
+	// ListOptions.Page has no effect.
+	// ListOptions.PerPage controls an undocumented GitHub API parameter.
+	ListOptions
+}
+
+// ListAll lists all organizations, in the order that they were created on GitHub.
+//
+// Note: Pagination is powered exclusively by the since parameter. To continue
+// listing the next set of organizations, use the ID of the last-returned organization
+// as the opts.Since parameter for the next call.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/#list-all-organizations
+func (s *OrganizationsService) ListAll(ctx context.Context, opt *OrganizationsListOptions) ([]*Organization, *Response, error) {
+	u, err := addOptions("organizations", opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	orgs := []*Organization{}
+	resp, err := s.client.Do(ctx, req, &orgs)
+	if err != nil {
+		return nil, resp, err
+	}
+	return orgs, resp, nil
+}
+
+// List the organizations for a user. Passing the empty string will list
+// organizations for the authenticated user.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/#list-user-organizations
+func (s *OrganizationsService) List(ctx context.Context, user string, opt *ListOptions) ([]*Organization, *Response, error) {
+	var u string
+	if user != "" {
+		u = fmt.Sprintf("users/%v/orgs", user)
+	} else {
+		u = "user/orgs"
+	}
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var orgs []*Organization
+	resp, err := s.client.Do(ctx, req, &orgs)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return orgs, resp, nil
+}
+
+// Get fetches an organization by name.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/#get-an-organization
+func (s *OrganizationsService) Get(ctx context.Context, org string) (*Organization, *Response, error) {
+	u := fmt.Sprintf("orgs/%v", org)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	organization := new(Organization)
+	resp, err := s.client.Do(ctx, req, organization)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return organization, resp, nil
+}
+
+// GetByID fetches an organization.
+//
+// Note: GetByID uses the undocumented GitHub API endpoint /organizations/:id.
+func (s *OrganizationsService) GetByID(ctx context.Context, id int64) (*Organization, *Response, error) {
+	u := fmt.Sprintf("organizations/%d", id)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	organization := new(Organization)
+	resp, err := s.client.Do(ctx, req, organization)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return organization, resp, nil
+}
+
+// Edit an organization.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/#edit-an-organization
+func (s *OrganizationsService) Edit(ctx context.Context, name string, org *Organization) (*Organization, *Response, error) {
+	u := fmt.Sprintf("orgs/%v", name)
+	req, err := s.client.NewRequest("PATCH", u, org)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	o := new(Organization)
+	resp, err := s.client.Do(ctx, req, o)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return o, resp, nil
+}
--- a/vendor/github.com/google/go-github/github/orgs_hooks.go
+++ b/vendor/github.com/google/go-github/github/orgs_hooks.go
@@ -0,0 +1,107 @@
+// Copyright 2015 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+)
+
+// ListHooks lists all Hooks for the specified organization.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/hooks/#list-hooks
+func (s *OrganizationsService) ListHooks(ctx context.Context, org string, opt *ListOptions) ([]*Hook, *Response, error) {
+	u := fmt.Sprintf("orgs/%v/hooks", org)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var hooks []*Hook
+	resp, err := s.client.Do(ctx, req, &hooks)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return hooks, resp, nil
+}
+
+// GetHook returns a single specified Hook.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/hooks/#get-single-hook
+func (s *OrganizationsService) GetHook(ctx context.Context, org string, id int64) (*Hook, *Response, error) {
+	u := fmt.Sprintf("orgs/%v/hooks/%d", org, id)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+	hook := new(Hook)
+	resp, err := s.client.Do(ctx, req, hook)
+	return hook, resp, err
+}
+
+// CreateHook creates a Hook for the specified org.
+// Name and Config are required fields.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/hooks/#create-a-hook
+func (s *OrganizationsService) CreateHook(ctx context.Context, org string, hook *Hook) (*Hook, *Response, error) {
+	u := fmt.Sprintf("orgs/%v/hooks", org)
+	req, err := s.client.NewRequest("POST", u, hook)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	h := new(Hook)
+	resp, err := s.client.Do(ctx, req, h)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return h, resp, nil
+}
+
+// EditHook updates a specified Hook.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/hooks/#edit-a-hook
+func (s *OrganizationsService) EditHook(ctx context.Context, org string, id int64, hook *Hook) (*Hook, *Response, error) {
+	u := fmt.Sprintf("orgs/%v/hooks/%d", org, id)
+	req, err := s.client.NewRequest("PATCH", u, hook)
+	if err != nil {
+		return nil, nil, err
+	}
+	h := new(Hook)
+	resp, err := s.client.Do(ctx, req, h)
+	return h, resp, err
+}
+
+// PingHook triggers a 'ping' event to be sent to the Hook.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/hooks/#ping-a-hook
+func (s *OrganizationsService) PingHook(ctx context.Context, org string, id int64) (*Response, error) {
+	u := fmt.Sprintf("orgs/%v/hooks/%d/pings", org, id)
+	req, err := s.client.NewRequest("POST", u, nil)
+	if err != nil {
+		return nil, err
+	}
+	return s.client.Do(ctx, req, nil)
+}
+
+// DeleteHook deletes a specified Hook.
+//
+// GitHub API docs: https://developer.github.com/v3/orgs/hooks/#delete-a-hook
+func (s *OrganizationsService) DeleteHook(ctx context.Context, org string, id int64) (*Response, error) {
+	u := fmt.Sprintf("orgs/%v/hooks/%d", org, id)
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+	return s.client.Do(ctx, req, nil)
+}
--- a/vendor/github.com/google/go-github/v28/github/orgs_members.go
+++ b/vendor/github.com/google/go-github/v28/github/orgs_members.go
--- a/vendor/github.com/google/go-github/v28/github/orgs_outside_collaborators.go
+++ b/vendor/github.com/google/go-github/v28/github/orgs_outside_collaborators.go
--- a/vendor/github.com/google/go-github/v28/github/orgs_projects.go
+++ b/vendor/github.com/google/go-github/v28/github/orgs_projects.go
--- a/vendor/github.com/google/go-github/v28/github/orgs_users_blocking.go
+++ b/vendor/github.com/google/go-github/v28/github/orgs_users_blocking.go
--- a/vendor/github.com/google/go-github/github/projects.go
+++ b/vendor/github.com/google/go-github/github/projects.go
@@ -0,0 +1,448 @@
+// Copyright 2016 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+)
+
+// ProjectsService provides access to the projects functions in the
+// GitHub API.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/
+type ProjectsService service
+
+// Project represents a GitHub Project.
+type Project struct {
+	ID        *int64     `json:"id,omitempty"`
+	URL       *string    `json:"url,omitempty"`
+	OwnerURL  *string    `json:"owner_url,omitempty"`
+	Name      *string    `json:"name,omitempty"`
+	Body      *string    `json:"body,omitempty"`
+	Number    *int       `json:"number,omitempty"`
+	CreatedAt *Timestamp `json:"created_at,omitempty"`
+	UpdatedAt *Timestamp `json:"updated_at,omitempty"`
+	NodeID    *string    `json:"node_id,omitempty"`
+
+	// The User object that generated the project.
+	Creator *User `json:"creator,omitempty"`
+}
+
+func (p Project) String() string {
+	return Stringify(p)
+}
+
+// GetProject gets a GitHub Project for a repo.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/#get-a-project
+func (s *ProjectsService) GetProject(ctx context.Context, id int64) (*Project, *Response, error) {
+	u := fmt.Sprintf("projects/%v", id)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	project := &Project{}
+	resp, err := s.client.Do(ctx, req, project)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return project, resp, nil
+}
+
+// ProjectOptions specifies the parameters to the
+// RepositoriesService.CreateProject and
+// ProjectsService.UpdateProject methods.
+type ProjectOptions struct {
+	// The name of the project. (Required for creation; optional for update.)
+	Name string `json:"name,omitempty"`
+	// The body of the project. (Optional.)
+	Body string `json:"body,omitempty"`
+
+	// The following field(s) are only applicable for update.
+	// They should be left with zero values for creation.
+
+	// State of the project. Either "open" or "closed". (Optional.)
+	State string `json:"state,omitempty"`
+}
+
+// UpdateProject updates a repository project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/#update-a-project
+func (s *ProjectsService) UpdateProject(ctx context.Context, id int64, opt *ProjectOptions) (*Project, *Response, error) {
+	u := fmt.Sprintf("projects/%v", id)
+	req, err := s.client.NewRequest("PATCH", u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	project := &Project{}
+	resp, err := s.client.Do(ctx, req, project)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return project, resp, nil
+}
+
+// DeleteProject deletes a GitHub Project from a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/#delete-a-project
+func (s *ProjectsService) DeleteProject(ctx context.Context, id int64) (*Response, error) {
+	u := fmt.Sprintf("projects/%v", id)
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	return s.client.Do(ctx, req, nil)
+}
+
+// ProjectColumn represents a column of a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/projects/
+type ProjectColumn struct {
+	ID         *int64     `json:"id,omitempty"`
+	Name       *string    `json:"name,omitempty"`
+	ProjectURL *string    `json:"project_url,omitempty"`
+	CreatedAt  *Timestamp `json:"created_at,omitempty"`
+	UpdatedAt  *Timestamp `json:"updated_at,omitempty"`
+	NodeID     *string    `json:"node_id,omitempty"`
+}
+
+// ListProjectColumns lists the columns of a GitHub Project for a repo.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/columns/#list-project-columns
+func (s *ProjectsService) ListProjectColumns(ctx context.Context, projectID int64, opt *ListOptions) ([]*ProjectColumn, *Response, error) {
+	u := fmt.Sprintf("projects/%v/columns", projectID)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	columns := []*ProjectColumn{}
+	resp, err := s.client.Do(ctx, req, &columns)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return columns, resp, nil
+}
+
+// GetProjectColumn gets a column of a GitHub Project for a repo.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/columns/#get-a-project-column
+func (s *ProjectsService) GetProjectColumn(ctx context.Context, id int64) (*ProjectColumn, *Response, error) {
+	u := fmt.Sprintf("projects/columns/%v", id)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	column := &ProjectColumn{}
+	resp, err := s.client.Do(ctx, req, column)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return column, resp, nil
+}
+
+// ProjectColumnOptions specifies the parameters to the
+// ProjectsService.CreateProjectColumn and
+// ProjectsService.UpdateProjectColumn methods.
+type ProjectColumnOptions struct {
+	// The name of the project column. (Required for creation and update.)
+	Name string `json:"name"`
+}
+
+// CreateProjectColumn creates a column for the specified (by number) project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/columns/#create-a-project-column
+func (s *ProjectsService) CreateProjectColumn(ctx context.Context, projectID int64, opt *ProjectColumnOptions) (*ProjectColumn, *Response, error) {
+	u := fmt.Sprintf("projects/%v/columns", projectID)
+	req, err := s.client.NewRequest("POST", u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	column := &ProjectColumn{}
+	resp, err := s.client.Do(ctx, req, column)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return column, resp, nil
+}
+
+// UpdateProjectColumn updates a column of a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/columns/#update-a-project-column
+func (s *ProjectsService) UpdateProjectColumn(ctx context.Context, columnID int64, opt *ProjectColumnOptions) (*ProjectColumn, *Response, error) {
+	u := fmt.Sprintf("projects/columns/%v", columnID)
+	req, err := s.client.NewRequest("PATCH", u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	column := &ProjectColumn{}
+	resp, err := s.client.Do(ctx, req, column)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return column, resp, nil
+}
+
+// DeleteProjectColumn deletes a column from a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/columns/#delete-a-project-column
+func (s *ProjectsService) DeleteProjectColumn(ctx context.Context, columnID int64) (*Response, error) {
+	u := fmt.Sprintf("projects/columns/%v", columnID)
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	return s.client.Do(ctx, req, nil)
+}
+
+// ProjectColumnMoveOptions specifies the parameters to the
+// ProjectsService.MoveProjectColumn method.
+type ProjectColumnMoveOptions struct {
+	// Position can be one of "first", "last", or "after:<column-id>", where
+	// <column-id> is the ID of a column in the same project. (Required.)
+	Position string `json:"position"`
+}
+
+// MoveProjectColumn moves a column within a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/columns/#move-a-project-column
+func (s *ProjectsService) MoveProjectColumn(ctx context.Context, columnID int64, opt *ProjectColumnMoveOptions) (*Response, error) {
+	u := fmt.Sprintf("projects/columns/%v/moves", columnID)
+	req, err := s.client.NewRequest("POST", u, opt)
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	return s.client.Do(ctx, req, nil)
+}
+
+// ProjectCard represents a card in a column of a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/cards/#get-a-project-card
+type ProjectCard struct {
+	URL        *string    `json:"url,omitempty"`
+	ColumnURL  *string    `json:"column_url,omitempty"`
+	ContentURL *string    `json:"content_url,omitempty"`
+	ID         *int64     `json:"id,omitempty"`
+	Note       *string    `json:"note,omitempty"`
+	Creator    *User      `json:"creator,omitempty"`
+	CreatedAt  *Timestamp `json:"created_at,omitempty"`
+	UpdatedAt  *Timestamp `json:"updated_at,omitempty"`
+	NodeID     *string    `json:"node_id,omitempty"`
+	Archived   *bool      `json:"archived,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	ColumnID *int64 `json:"column_id,omitempty"`
+}
+
+// ProjectCardListOptions specifies the optional parameters to the
+// ProjectsService.ListProjectCards method.
+type ProjectCardListOptions struct {
+	// ArchivedState is used to list all, archived, or not_archived project cards.
+	// Defaults to not_archived when you omit this parameter.
+	ArchivedState *string `url:"archived_state,omitempty"`
+
+	ListOptions
+}
+
+// ListProjectCards lists the cards in a column of a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/cards/#list-project-cards
+func (s *ProjectsService) ListProjectCards(ctx context.Context, columnID int64, opt *ProjectCardListOptions) ([]*ProjectCard, *Response, error) {
+	u := fmt.Sprintf("projects/columns/%v/cards", columnID)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	cards := []*ProjectCard{}
+	resp, err := s.client.Do(ctx, req, &cards)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return cards, resp, nil
+}
+
+// GetProjectCard gets a card in a column of a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/cards/#get-a-project-card
+func (s *ProjectsService) GetProjectCard(ctx context.Context, columnID int64) (*ProjectCard, *Response, error) {
+	u := fmt.Sprintf("projects/columns/cards/%v", columnID)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	card := &ProjectCard{}
+	resp, err := s.client.Do(ctx, req, card)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return card, resp, nil
+}
+
+// ProjectCardOptions specifies the parameters to the
+// ProjectsService.CreateProjectCard and
+// ProjectsService.UpdateProjectCard methods.
+type ProjectCardOptions struct {
+	// The note of the card. Note and ContentID are mutually exclusive.
+	Note string `json:"note,omitempty"`
+	// The ID (not Number) of the Issue to associate with this card.
+	// Note and ContentID are mutually exclusive.
+	ContentID int64 `json:"content_id,omitempty"`
+	// The type of content to associate with this card. Possible values are: "Issue".
+	ContentType string `json:"content_type,omitempty"`
+	// Use true to archive a project card.
+	// Specify false if you need to restore a previously archived project card.
+	Archived *bool `json:"archived,omitempty"`
+}
+
+// CreateProjectCard creates a card in the specified column of a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/cards/#create-a-project-card
+func (s *ProjectsService) CreateProjectCard(ctx context.Context, columnID int64, opt *ProjectCardOptions) (*ProjectCard, *Response, error) {
+	u := fmt.Sprintf("projects/columns/%v/cards", columnID)
+	req, err := s.client.NewRequest("POST", u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	card := &ProjectCard{}
+	resp, err := s.client.Do(ctx, req, card)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return card, resp, nil
+}
+
+// UpdateProjectCard updates a card of a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/cards/#update-a-project-card
+func (s *ProjectsService) UpdateProjectCard(ctx context.Context, cardID int64, opt *ProjectCardOptions) (*ProjectCard, *Response, error) {
+	u := fmt.Sprintf("projects/columns/cards/%v", cardID)
+	req, err := s.client.NewRequest("PATCH", u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept headers when APIs fully launch.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	card := &ProjectCard{}
+	resp, err := s.client.Do(ctx, req, card)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return card, resp, nil
+}
+
+// DeleteProjectCard deletes a card from a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/cards/#delete-a-project-card
+func (s *ProjectsService) DeleteProjectCard(ctx context.Context, cardID int64) (*Response, error) {
+	u := fmt.Sprintf("projects/columns/cards/%v", cardID)
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	return s.client.Do(ctx, req, nil)
+}
+
+// ProjectCardMoveOptions specifies the parameters to the
+// ProjectsService.MoveProjectCard method.
+type ProjectCardMoveOptions struct {
+	// Position can be one of "top", "bottom", or "after:<card-id>", where
+	// <card-id> is the ID of a card in the same project.
+	Position string `json:"position"`
+	// ColumnID is the ID of a column in the same project. Note that ColumnID
+	// is required when using Position "after:<card-id>" when that card is in
+	// another column; otherwise it is optional.
+	ColumnID int64 `json:"column_id,omitempty"`
+}
+
+// MoveProjectCard moves a card within a GitHub Project.
+//
+// GitHub API docs: https://developer.github.com/v3/projects/cards/#move-a-project-card
+func (s *ProjectsService) MoveProjectCard(ctx context.Context, cardID int64, opt *ProjectCardMoveOptions) (*Response, error) {
+	u := fmt.Sprintf("projects/columns/cards/%v/moves", cardID)
+	req, err := s.client.NewRequest("POST", u, opt)
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeProjectsPreview)
+
+	return s.client.Do(ctx, req, nil)
+}
--- a/vendor/github.com/google/go-github/github/pulls.go
+++ b/vendor/github.com/google/go-github/github/pulls.go
@@ -0,0 +1,383 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"strings"
+	"time"
+)
+
+// PullRequestsService handles communication with the pull request related
+// methods of the GitHub API.
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/
+type PullRequestsService service
+
+// PullRequest represents a GitHub pull request on a repository.
+type PullRequest struct {
+	ID                  *int64     `json:"id,omitempty"`
+	Number              *int       `json:"number,omitempty"`
+	State               *string    `json:"state,omitempty"`
+	Title               *string    `json:"title,omitempty"`
+	Body                *string    `json:"body,omitempty"`
+	CreatedAt           *time.Time `json:"created_at,omitempty"`
+	UpdatedAt           *time.Time `json:"updated_at,omitempty"`
+	ClosedAt            *time.Time `json:"closed_at,omitempty"`
+	MergedAt            *time.Time `json:"merged_at,omitempty"`
+	Labels              []*Label   `json:"labels,omitempty"`
+	User                *User      `json:"user,omitempty"`
+	Merged              *bool      `json:"merged,omitempty"`
+	Mergeable           *bool      `json:"mergeable,omitempty"`
+	MergeableState      *string    `json:"mergeable_state,omitempty"`
+	MergedBy            *User      `json:"merged_by,omitempty"`
+	MergeCommitSHA      *string    `json:"merge_commit_sha,omitempty"`
+	Comments            *int       `json:"comments,omitempty"`
+	Commits             *int       `json:"commits,omitempty"`
+	Additions           *int       `json:"additions,omitempty"`
+	Deletions           *int       `json:"deletions,omitempty"`
+	ChangedFiles        *int       `json:"changed_files,omitempty"`
+	URL                 *string    `json:"url,omitempty"`
+	HTMLURL             *string    `json:"html_url,omitempty"`
+	IssueURL            *string    `json:"issue_url,omitempty"`
+	StatusesURL         *string    `json:"statuses_url,omitempty"`
+	DiffURL             *string    `json:"diff_url,omitempty"`
+	PatchURL            *string    `json:"patch_url,omitempty"`
+	CommitsURL          *string    `json:"commits_url,omitempty"`
+	CommentsURL         *string    `json:"comments_url,omitempty"`
+	ReviewCommentsURL   *string    `json:"review_comments_url,omitempty"`
+	ReviewCommentURL    *string    `json:"review_comment_url,omitempty"`
+	Assignee            *User      `json:"assignee,omitempty"`
+	Assignees           []*User    `json:"assignees,omitempty"`
+	Milestone           *Milestone `json:"milestone,omitempty"`
+	MaintainerCanModify *bool      `json:"maintainer_can_modify,omitempty"`
+	AuthorAssociation   *string    `json:"author_association,omitempty"`
+	NodeID              *string    `json:"node_id,omitempty"`
+	RequestedReviewers  []*User    `json:"requested_reviewers,omitempty"`
+
+	Head *PullRequestBranch `json:"head,omitempty"`
+	Base *PullRequestBranch `json:"base,omitempty"`
+
+	// ActiveLockReason is populated only when LockReason is provided while locking the pull request.
+	// Possible values are: "off-topic", "too heated", "resolved", and "spam".
+	ActiveLockReason *string `json:"active_lock_reason,omitempty"`
+}
+
+func (p PullRequest) String() string {
+	return Stringify(p)
+}
+
+// PullRequestBranch represents a base or head branch in a GitHub pull request.
+type PullRequestBranch struct {
+	Label *string     `json:"label,omitempty"`
+	Ref   *string     `json:"ref,omitempty"`
+	SHA   *string     `json:"sha,omitempty"`
+	Repo  *Repository `json:"repo,omitempty"`
+	User  *User       `json:"user,omitempty"`
+}
+
+// PullRequestListOptions specifies the optional parameters to the
+// PullRequestsService.List method.
+type PullRequestListOptions struct {
+	// State filters pull requests based on their state. Possible values are:
+	// open, closed. Default is "open".
+	State string `url:"state,omitempty"`
+
+	// Head filters pull requests by head user and branch name in the format of:
+	// "user:ref-name".
+	Head string `url:"head,omitempty"`
+
+	// Base filters pull requests by base branch name.
+	Base string `url:"base,omitempty"`
+
+	// Sort specifies how to sort pull requests. Possible values are: created,
+	// updated, popularity, long-running. Default is "created".
+	Sort string `url:"sort,omitempty"`
+
+	// Direction in which to sort pull requests. Possible values are: asc, desc.
+	// If Sort is "created" or not specified, Default is "desc", otherwise Default
+	// is "asc"
+	Direction string `url:"direction,omitempty"`
+
+	ListOptions
+}
+
+// List the pull requests for the specified repository.
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/#list-pull-requests
+func (s *PullRequestsService) List(ctx context.Context, owner string, repo string, opt *PullRequestListOptions) ([]*PullRequest, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	acceptHeaders := []string{mediaTypeLabelDescriptionSearchPreview, mediaTypeLockReasonPreview}
+	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))
+
+	var pulls []*PullRequest
+	resp, err := s.client.Do(ctx, req, &pulls)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return pulls, resp, nil
+}
+
+// Get a single pull request.
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/#get-a-single-pull-request
+func (s *PullRequestsService) Get(ctx context.Context, owner string, repo string, number int) (*PullRequest, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d", owner, repo, number)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	acceptHeaders := []string{mediaTypeLabelDescriptionSearchPreview, mediaTypeLockReasonPreview}
+	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))
+
+	pull := new(PullRequest)
+	resp, err := s.client.Do(ctx, req, pull)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return pull, resp, nil
+}
+
+// GetRaw gets a single pull request in raw (diff or patch) format.
+func (s *PullRequestsService) GetRaw(ctx context.Context, owner string, repo string, number int, opt RawOptions) (string, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d", owner, repo, number)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return "", nil, err
+	}
+
+	switch opt.Type {
+	case Diff:
+		req.Header.Set("Accept", mediaTypeV3Diff)
+	case Patch:
+		req.Header.Set("Accept", mediaTypeV3Patch)
+	default:
+		return "", nil, fmt.Errorf("unsupported raw type %d", opt.Type)
+	}
+
+	var buf bytes.Buffer
+	resp, err := s.client.Do(ctx, req, &buf)
+	if err != nil {
+		return "", resp, err
+	}
+
+	return buf.String(), resp, nil
+}
+
+// NewPullRequest represents a new pull request to be created.
+type NewPullRequest struct {
+	Title               *string `json:"title,omitempty"`
+	Head                *string `json:"head,omitempty"`
+	Base                *string `json:"base,omitempty"`
+	Body                *string `json:"body,omitempty"`
+	Issue               *int    `json:"issue,omitempty"`
+	MaintainerCanModify *bool   `json:"maintainer_can_modify,omitempty"`
+}
+
+// Create a new pull request on the specified repository.
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/#create-a-pull-request
+func (s *PullRequestsService) Create(ctx context.Context, owner string, repo string, pull *NewPullRequest) (*PullRequest, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls", owner, repo)
+	req, err := s.client.NewRequest("POST", u, pull)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeLabelDescriptionSearchPreview)
+
+	p := new(PullRequest)
+	resp, err := s.client.Do(ctx, req, p)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return p, resp, nil
+}
+
+type pullRequestUpdate struct {
+	Title               *string `json:"title,omitempty"`
+	Body                *string `json:"body,omitempty"`
+	State               *string `json:"state,omitempty"`
+	Base                *string `json:"base,omitempty"`
+	MaintainerCanModify *bool   `json:"maintainer_can_modify,omitempty"`
+}
+
+// Edit a pull request.
+// pull must not be nil.
+//
+// The following fields are editable: Title, Body, State, Base.Ref and MaintainerCanModify.
+// Base.Ref updates the base branch of the pull request.
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/#update-a-pull-request
+func (s *PullRequestsService) Edit(ctx context.Context, owner string, repo string, number int, pull *PullRequest) (*PullRequest, *Response, error) {
+	if pull == nil {
+		return nil, nil, fmt.Errorf("pull must be provided")
+	}
+
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d", owner, repo, number)
+
+	update := &pullRequestUpdate{
+		Title:               pull.Title,
+		Body:                pull.Body,
+		State:               pull.State,
+		MaintainerCanModify: pull.MaintainerCanModify,
+	}
+	if pull.Base != nil {
+		update.Base = pull.Base.Ref
+	}
+
+	req, err := s.client.NewRequest("PATCH", u, update)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	acceptHeaders := []string{mediaTypeLabelDescriptionSearchPreview, mediaTypeLockReasonPreview}
+	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))
+
+	p := new(PullRequest)
+	resp, err := s.client.Do(ctx, req, p)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return p, resp, nil
+}
+
+// ListCommits lists the commits in a pull request.
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/#list-commits-on-a-pull-request
+func (s *PullRequestsService) ListCommits(ctx context.Context, owner string, repo string, number int, opt *ListOptions) ([]*RepositoryCommit, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/commits", owner, repo, number)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeGitSigningPreview)
+
+	var commits []*RepositoryCommit
+	resp, err := s.client.Do(ctx, req, &commits)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return commits, resp, nil
+}
+
+// ListFiles lists the files in a pull request.
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/#list-pull-requests-files
+func (s *PullRequestsService) ListFiles(ctx context.Context, owner string, repo string, number int, opt *ListOptions) ([]*CommitFile, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/files", owner, repo, number)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var commitFiles []*CommitFile
+	resp, err := s.client.Do(ctx, req, &commitFiles)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return commitFiles, resp, nil
+}
+
+// IsMerged checks if a pull request has been merged.
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/#get-if-a-pull-request-has-been-merged
+func (s *PullRequestsService) IsMerged(ctx context.Context, owner string, repo string, number int) (bool, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/merge", owner, repo, number)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return false, nil, err
+	}
+
+	resp, err := s.client.Do(ctx, req, nil)
+	merged, err := parseBoolResponse(err)
+	return merged, resp, err
+}
+
+// PullRequestMergeResult represents the result of merging a pull request.
+type PullRequestMergeResult struct {
+	SHA     *string `json:"sha,omitempty"`
+	Merged  *bool   `json:"merged,omitempty"`
+	Message *string `json:"message,omitempty"`
+}
+
+// PullRequestOptions lets you define how a pull request will be merged.
+type PullRequestOptions struct {
+	CommitTitle string // Extra detail to append to automatic commit message. (Optional.)
+	SHA         string // SHA that pull request head must match to allow merge. (Optional.)
+
+	// The merge method to use. Possible values include: "merge", "squash", and "rebase" with the default being merge. (Optional.)
+	MergeMethod string
+}
+
+type pullRequestMergeRequest struct {
+	CommitMessage string `json:"commit_message"`
+	CommitTitle   string `json:"commit_title,omitempty"`
+	MergeMethod   string `json:"merge_method,omitempty"`
+	SHA           string `json:"sha,omitempty"`
+}
+
+// Merge a pull request (Merge Button™).
+// commitMessage is the title for the automatic commit message.
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/#merge-a-pull-request-merge-buttontrade
+func (s *PullRequestsService) Merge(ctx context.Context, owner string, repo string, number int, commitMessage string, options *PullRequestOptions) (*PullRequestMergeResult, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/merge", owner, repo, number)
+
+	pullRequestBody := &pullRequestMergeRequest{CommitMessage: commitMessage}
+	if options != nil {
+		pullRequestBody.CommitTitle = options.CommitTitle
+		pullRequestBody.MergeMethod = options.MergeMethod
+		pullRequestBody.SHA = options.SHA
+	}
+	req, err := s.client.NewRequest("PUT", u, pullRequestBody)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	mergeResult := new(PullRequestMergeResult)
+	resp, err := s.client.Do(ctx, req, mergeResult)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return mergeResult, resp, nil
+}
--- a/vendor/github.com/google/go-github/v28/github/pulls_comments.go
+++ b/vendor/github.com/google/go-github/v28/github/pulls_comments.go
@@ -14,7 +14,6 @@ import (
 // PullRequestComment represents a comment left on a pull request.
 type PullRequestComment struct {
 	ID                  *int64     `json:"id,omitempty"`
-	NodeID              *string    `json:"node_id,omitempty"`
 	InReplyTo           *int64     `json:"in_reply_to_id,omitempty"`
 	Body                *string    `json:"body,omitempty"`
 	Path                *string    `json:"path,omitempty"`
--- a/vendor/github.com/google/go-github/v28/github/pulls_reviewers.go
+++ b/vendor/github.com/google/go-github/v28/github/pulls_reviewers.go
@@ -12,7 +12,6 @@ import (

 // ReviewersRequest specifies users and teams for a pull request review request.
 type ReviewersRequest struct {
-	NodeID        *string  `json:"node_id,omitempty"`
 	Reviewers     []string `json:"reviewers,omitempty"`
 	TeamReviewers []string `json:"team_reviewers,omitempty"`
 }
--- a/vendor/github.com/google/go-github/github/pulls_reviews.go
+++ b/vendor/github.com/google/go-github/github/pulls_reviews.go
@@ -0,0 +1,236 @@
+// Copyright 2016 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+	"time"
+)
+
+// PullRequestReview represents a review of a pull request.
+type PullRequestReview struct {
+	ID             *int64     `json:"id,omitempty"`
+	User           *User      `json:"user,omitempty"`
+	Body           *string    `json:"body,omitempty"`
+	SubmittedAt    *time.Time `json:"submitted_at,omitempty"`
+	CommitID       *string    `json:"commit_id,omitempty"`
+	HTMLURL        *string    `json:"html_url,omitempty"`
+	PullRequestURL *string    `json:"pull_request_url,omitempty"`
+	State          *string    `json:"state,omitempty"`
+}
+
+func (p PullRequestReview) String() string {
+	return Stringify(p)
+}
+
+// DraftReviewComment represents a comment part of the review.
+type DraftReviewComment struct {
+	Path     *string `json:"path,omitempty"`
+	Position *int    `json:"position,omitempty"`
+	Body     *string `json:"body,omitempty"`
+}
+
+func (c DraftReviewComment) String() string {
+	return Stringify(c)
+}
+
+// PullRequestReviewRequest represents a request to create a review.
+type PullRequestReviewRequest struct {
+	CommitID *string               `json:"commit_id,omitempty"`
+	Body     *string               `json:"body,omitempty"`
+	Event    *string               `json:"event,omitempty"`
+	Comments []*DraftReviewComment `json:"comments,omitempty"`
+}
+
+func (r PullRequestReviewRequest) String() string {
+	return Stringify(r)
+}
+
+// PullRequestReviewDismissalRequest represents a request to dismiss a review.
+type PullRequestReviewDismissalRequest struct {
+	Message *string `json:"message,omitempty"`
+}
+
+func (r PullRequestReviewDismissalRequest) String() string {
+	return Stringify(r)
+}
+
+// ListReviews lists all reviews on the specified pull request.
+//
+// TODO: Follow up with GitHub support about an issue with this method's
+// returned error format and remove this comment once it's fixed.
+// Read more about it here - https://github.com/google/go-github/issues/540
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/reviews/#list-reviews-on-a-pull-request
+func (s *PullRequestsService) ListReviews(ctx context.Context, owner, repo string, number int, opt *ListOptions) ([]*PullRequestReview, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/reviews", owner, repo, number)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var reviews []*PullRequestReview
+	resp, err := s.client.Do(ctx, req, &reviews)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return reviews, resp, nil
+}
+
+// GetReview fetches the specified pull request review.
+//
+// TODO: Follow up with GitHub support about an issue with this method's
+// returned error format and remove this comment once it's fixed.
+// Read more about it here - https://github.com/google/go-github/issues/540
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/reviews/#get-a-single-review
+func (s *PullRequestsService) GetReview(ctx context.Context, owner, repo string, number int, reviewID int64) (*PullRequestReview, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/reviews/%d", owner, repo, number, reviewID)
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	review := new(PullRequestReview)
+	resp, err := s.client.Do(ctx, req, review)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return review, resp, nil
+}
+
+// DeletePendingReview deletes the specified pull request pending review.
+//
+// TODO: Follow up with GitHub support about an issue with this method's
+// returned error format and remove this comment once it's fixed.
+// Read more about it here - https://github.com/google/go-github/issues/540
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/reviews/#delete-a-pending-review
+func (s *PullRequestsService) DeletePendingReview(ctx context.Context, owner, repo string, number int, reviewID int64) (*PullRequestReview, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/reviews/%d", owner, repo, number, reviewID)
+
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	review := new(PullRequestReview)
+	resp, err := s.client.Do(ctx, req, review)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return review, resp, nil
+}
+
+// ListReviewComments lists all the comments for the specified review.
+//
+// TODO: Follow up with GitHub support about an issue with this method's
+// returned error format and remove this comment once it's fixed.
+// Read more about it here - https://github.com/google/go-github/issues/540
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/reviews/#get-comments-for-a-single-review
+func (s *PullRequestsService) ListReviewComments(ctx context.Context, owner, repo string, number int, reviewID int64, opt *ListOptions) ([]*PullRequestComment, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/reviews/%d/comments", owner, repo, number, reviewID)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var comments []*PullRequestComment
+	resp, err := s.client.Do(ctx, req, &comments)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return comments, resp, nil
+}
+
+// CreateReview creates a new review on the specified pull request.
+//
+// TODO: Follow up with GitHub support about an issue with this method's
+// returned error format and remove this comment once it's fixed.
+// Read more about it here - https://github.com/google/go-github/issues/540
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/reviews/#create-a-pull-request-review
+func (s *PullRequestsService) CreateReview(ctx context.Context, owner, repo string, number int, review *PullRequestReviewRequest) (*PullRequestReview, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/reviews", owner, repo, number)
+
+	req, err := s.client.NewRequest("POST", u, review)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	r := new(PullRequestReview)
+	resp, err := s.client.Do(ctx, req, r)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return r, resp, nil
+}
+
+// SubmitReview submits a specified review on the specified pull request.
+//
+// TODO: Follow up with GitHub support about an issue with this method's
+// returned error format and remove this comment once it's fixed.
+// Read more about it here - https://github.com/google/go-github/issues/540
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/reviews/#submit-a-pull-request-review
+func (s *PullRequestsService) SubmitReview(ctx context.Context, owner, repo string, number int, reviewID int64, review *PullRequestReviewRequest) (*PullRequestReview, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/reviews/%d/events", owner, repo, number, reviewID)
+
+	req, err := s.client.NewRequest("POST", u, review)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	r := new(PullRequestReview)
+	resp, err := s.client.Do(ctx, req, r)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return r, resp, nil
+}
+
+// DismissReview dismisses a specified review on the specified pull request.
+//
+// TODO: Follow up with GitHub support about an issue with this method's
+// returned error format and remove this comment once it's fixed.
+// Read more about it here - https://github.com/google/go-github/issues/540
+//
+// GitHub API docs: https://developer.github.com/v3/pulls/reviews/#dismiss-a-pull-request-review
+func (s *PullRequestsService) DismissReview(ctx context.Context, owner, repo string, number int, reviewID int64, review *PullRequestReviewDismissalRequest) (*PullRequestReview, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pulls/%d/reviews/%d/dismissals", owner, repo, number, reviewID)
+
+	req, err := s.client.NewRequest("PUT", u, review)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	r := new(PullRequestReview)
+	resp, err := s.client.Do(ctx, req, r)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return r, resp, nil
+}
--- a/vendor/github.com/google/go-github/v28/github/reactions.go
+++ b/vendor/github.com/google/go-github/v28/github/reactions.go
@@ -74,7 +74,6 @@ func (s *ReactionsService) ListCommentReactions(ctx context.Context, owner, repo
 // CreateCommentReaction creates a reaction for a commit comment.
 // Note that if you have already created a reaction of type content, the
 // previously created reaction will be returned with Status: 200 OK.
-// The content should have one of the following values: "+1", "-1", "laugh", "confused", "heart", "hooray".
 //
 // GitHub API docs: https://developer.github.com/v3/reactions/#create-reaction-for-a-commit-comment
 func (s ReactionsService) CreateCommentReaction(ctx context.Context, owner, repo string, id int64, content string) (*Reaction, *Response, error) {
@@ -128,7 +127,6 @@ func (s *ReactionsService) ListIssueReactions(ctx context.Context, owner, repo s
 // CreateIssueReaction creates a reaction for an issue.
 // Note that if you have already created a reaction of type content, the
 // previously created reaction will be returned with Status: 200 OK.
-// The content should have one of the following values: "+1", "-1", "laugh", "confused", "heart", "hooray".
 //
 // GitHub API docs: https://developer.github.com/v3/reactions/#create-reaction-for-an-issue
 func (s ReactionsService) CreateIssueReaction(ctx context.Context, owner, repo string, number int, content string) (*Reaction, *Response, error) {
@@ -182,7 +180,6 @@ func (s *ReactionsService) ListIssueCommentReactions(ctx context.Context, owner,
 // CreateIssueCommentReaction creates a reaction for an issue comment.
 // Note that if you have already created a reaction of type content, the
 // previously created reaction will be returned with Status: 200 OK.
-// The content should have one of the following values: "+1", "-1", "laugh", "confused", "heart", "hooray".
 //
 // GitHub API docs: https://developer.github.com/v3/reactions/#create-reaction-for-an-issue-comment
 func (s ReactionsService) CreateIssueCommentReaction(ctx context.Context, owner, repo string, id int64, content string) (*Reaction, *Response, error) {
@@ -236,7 +233,6 @@ func (s *ReactionsService) ListPullRequestCommentReactions(ctx context.Context,
 // CreatePullRequestCommentReaction creates a reaction for a pull request review comment.
 // Note that if you have already created a reaction of type content, the
 // previously created reaction will be returned with Status: 200 OK.
-// The content should have one of the following values: "+1", "-1", "laugh", "confused", "heart", "hooray".
 //
 // GitHub API docs: https://developer.github.com/v3/reactions/#create-reaction-for-an-issue-comment
 func (s ReactionsService) CreatePullRequestCommentReaction(ctx context.Context, owner, repo string, id int64, content string) (*Reaction, *Response, error) {
@@ -260,105 +256,6 @@ func (s ReactionsService) CreatePullRequestCommentReaction(ctx context.Context,
 	return m, resp, nil
 }

-// ListTeamDiscussionReactions lists the reactions for a team discussion.
-//
-// GitHub API docs: https://developer.github.com/v3/reactions/#list-reactions-for-a-team-discussion
-func (s *ReactionsService) ListTeamDiscussionReactions(ctx context.Context, teamID int64, discussionNumber int, opt *ListOptions) ([]*Reaction, *Response, error) {
-	u := fmt.Sprintf("teams/%v/discussions/%v/reactions", teamID, discussionNumber)
-	u, err := addOptions(u, opt)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	req, err := s.client.NewRequest("GET", u, nil)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	req.Header.Set("Accept", mediaTypeReactionsPreview)
-
-	var m []*Reaction
-	resp, err := s.client.Do(ctx, req, &m)
-	if err != nil {
-		return nil, resp, err
-	}
-
-	return m, resp, nil
-}
-
-// CreateTeamDiscussionReaction creates a reaction for a team discussion.
-// The content should have one of the following values: "+1", "-1", "laugh", "confused", "heart", "hooray".
-//
-// GitHub API docs: https://developer.github.com/v3/reactions/#create-reaction-for-a-team-discussion
-func (s *ReactionsService) CreateTeamDiscussionReaction(ctx context.Context, teamID int64, discussionNumber int, content string) (*Reaction, *Response, error) {
-	u := fmt.Sprintf("teams/%v/discussions/%v/reactions", teamID, discussionNumber)
-
-	body := &Reaction{Content: String(content)}
-	req, err := s.client.NewRequest("POST", u, body)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	req.Header.Set("Accept", mediaTypeReactionsPreview)
-
-	m := &Reaction{}
-	resp, err := s.client.Do(ctx, req, m)
-	if err != nil {
-		return nil, resp, err
-	}
-
-	return m, resp, nil
-}
-
-// ListTeamDiscussionCommentReactions lists the reactions for a team discussion comment.
-//
-// GitHub API docs: https://developer.github.com/v3/reactions/#list-reactions-for-a-team-discussion-comment
-func (s *ReactionsService) ListTeamDiscussionCommentReactions(ctx context.Context, teamID int64, discussionNumber, commentNumber int, opt *ListOptions) ([]*Reaction, *Response, error) {
-	u := fmt.Sprintf("teams/%v/discussions/%v/comments/%v/reactions", teamID, discussionNumber, commentNumber)
-	u, err := addOptions(u, opt)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	req, err := s.client.NewRequest("GET", u, nil)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	req.Header.Set("Accept", mediaTypeReactionsPreview)
-
-	var m []*Reaction
-	resp, err := s.client.Do(ctx, req, &m)
-	if err != nil {
-		return nil, nil, err
-	}
-	return m, resp, nil
-}
-
-// CreateTeamDiscussionCommentReaction creates a reaction for a team discussion comment.
-// The content should have one of the following values: "+1", "-1", "laugh", "confused", "heart", "hooray".
-//
-// GitHub API docs: https://developer.github.com/v3/reactions/#create-reaction-for-a-team-discussion-comment
-func (s *ReactionsService) CreateTeamDiscussionCommentReaction(ctx context.Context, teamID int64, discussionNumber, commentNumber int, content string) (*Reaction, *Response, error) {
-	u := fmt.Sprintf("teams/%v/discussions/%v/comments/%v/reactions", teamID, discussionNumber, commentNumber)
-
-	body := &Reaction{Content: String(content)}
-	req, err := s.client.NewRequest("POST", u, body)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	req.Header.Set("Accept", mediaTypeReactionsPreview)
-
-	m := &Reaction{}
-	resp, err := s.client.Do(ctx, req, m)
-	if err != nil {
-		return nil, resp, err
-	}
-
-	return m, resp, nil
-}
-
 // DeleteReaction deletes a reaction.
 //
 // GitHub API docs: https://developer.github.com/v3/reaction/reactions/#delete-a-reaction-archive
--- a/vendor/github.com/google/go-github/v28/github/repos.go
+++ b/vendor/github.com/google/go-github/v28/github/repos.go
@@ -19,46 +19,43 @@ type RepositoriesService service

 // Repository represents a GitHub repository.
 type Repository struct {
-	ID                 *int64           `json:"id,omitempty"`
-	NodeID             *string          `json:"node_id,omitempty"`
-	Owner              *User            `json:"owner,omitempty"`
-	Name               *string          `json:"name,omitempty"`
-	FullName           *string          `json:"full_name,omitempty"`
-	Description        *string          `json:"description,omitempty"`
-	Homepage           *string          `json:"homepage,omitempty"`
-	CodeOfConduct      *CodeOfConduct   `json:"code_of_conduct,omitempty"`
-	DefaultBranch      *string          `json:"default_branch,omitempty"`
-	MasterBranch       *string          `json:"master_branch,omitempty"`
-	CreatedAt          *Timestamp       `json:"created_at,omitempty"`
-	PushedAt           *Timestamp       `json:"pushed_at,omitempty"`
-	UpdatedAt          *Timestamp       `json:"updated_at,omitempty"`
-	HTMLURL            *string          `json:"html_url,omitempty"`
-	CloneURL           *string          `json:"clone_url,omitempty"`
-	GitURL             *string          `json:"git_url,omitempty"`
-	MirrorURL          *string          `json:"mirror_url,omitempty"`
-	SSHURL             *string          `json:"ssh_url,omitempty"`
-	SVNURL             *string          `json:"svn_url,omitempty"`
-	Language           *string          `json:"language,omitempty"`
-	Fork               *bool            `json:"fork,omitempty"`
-	ForksCount         *int             `json:"forks_count,omitempty"`
-	NetworkCount       *int             `json:"network_count,omitempty"`
-	OpenIssuesCount    *int             `json:"open_issues_count,omitempty"`
-	StargazersCount    *int             `json:"stargazers_count,omitempty"`
-	SubscribersCount   *int             `json:"subscribers_count,omitempty"`
-	WatchersCount      *int             `json:"watchers_count,omitempty"`
-	Size               *int             `json:"size,omitempty"`
-	AutoInit           *bool            `json:"auto_init,omitempty"`
-	Parent             *Repository      `json:"parent,omitempty"`
-	Source             *Repository      `json:"source,omitempty"`
-	TemplateRepository *Repository      `json:"template_repository,omitempty"`
-	Organization       *Organization    `json:"organization,omitempty"`
-	Permissions        *map[string]bool `json:"permissions,omitempty"`
-	AllowRebaseMerge   *bool            `json:"allow_rebase_merge,omitempty"`
-	AllowSquashMerge   *bool            `json:"allow_squash_merge,omitempty"`
-	AllowMergeCommit   *bool            `json:"allow_merge_commit,omitempty"`
-	Topics             []string         `json:"topics,omitempty"`
-	Archived           *bool            `json:"archived,omitempty"`
-	Disabled           *bool            `json:"disabled,omitempty"`
+	ID               *int64           `json:"id,omitempty"`
+	NodeID           *string          `json:"node_id,omitempty"`
+	Owner            *User            `json:"owner,omitempty"`
+	Name             *string          `json:"name,omitempty"`
+	FullName         *string          `json:"full_name,omitempty"`
+	Description      *string          `json:"description,omitempty"`
+	Homepage         *string          `json:"homepage,omitempty"`
+	CodeOfConduct    *CodeOfConduct   `json:"code_of_conduct,omitempty"`
+	DefaultBranch    *string          `json:"default_branch,omitempty"`
+	MasterBranch     *string          `json:"master_branch,omitempty"`
+	CreatedAt        *Timestamp       `json:"created_at,omitempty"`
+	PushedAt         *Timestamp       `json:"pushed_at,omitempty"`
+	UpdatedAt        *Timestamp       `json:"updated_at,omitempty"`
+	HTMLURL          *string          `json:"html_url,omitempty"`
+	CloneURL         *string          `json:"clone_url,omitempty"`
+	GitURL           *string          `json:"git_url,omitempty"`
+	MirrorURL        *string          `json:"mirror_url,omitempty"`
+	SSHURL           *string          `json:"ssh_url,omitempty"`
+	SVNURL           *string          `json:"svn_url,omitempty"`
+	Language         *string          `json:"language,omitempty"`
+	Fork             *bool            `json:"fork,omitempty"`
+	ForksCount       *int             `json:"forks_count,omitempty"`
+	NetworkCount     *int             `json:"network_count,omitempty"`
+	OpenIssuesCount  *int             `json:"open_issues_count,omitempty"`
+	StargazersCount  *int             `json:"stargazers_count,omitempty"`
+	SubscribersCount *int             `json:"subscribers_count,omitempty"`
+	WatchersCount    *int             `json:"watchers_count,omitempty"`
+	Size             *int             `json:"size,omitempty"`
+	AutoInit         *bool            `json:"auto_init,omitempty"`
+	Parent           *Repository      `json:"parent,omitempty"`
+	Source           *Repository      `json:"source,omitempty"`
+	Organization     *Organization    `json:"organization,omitempty"`
+	Permissions      *map[string]bool `json:"permissions,omitempty"`
+	AllowRebaseMerge *bool            `json:"allow_rebase_merge,omitempty"`
+	AllowSquashMerge *bool            `json:"allow_squash_merge,omitempty"`
+	AllowMergeCommit *bool            `json:"allow_merge_commit,omitempty"`
+	Topics           []string         `json:"topics,omitempty"`

 	// Only provided when using RepositoriesService.Get while in preview
 	License *License `json:"license,omitempty"`
@@ -70,9 +67,9 @@ type Repository struct {
 	HasPages          *bool   `json:"has_pages,omitempty"`
 	HasProjects       *bool   `json:"has_projects,omitempty"`
 	HasDownloads      *bool   `json:"has_downloads,omitempty"`
-	IsTemplate        *bool   `json:"is_template,omitempty"`
 	LicenseTemplate   *string `json:"license_template,omitempty"`
 	GitignoreTemplate *string `json:"gitignore_template,omitempty"`
+	Archived          *bool   `json:"archived,omitempty"`

 	// Creating an organization repository. Required for non-owners.
 	TeamID *int64 `json:"team_id,omitempty"`
@@ -182,7 +179,7 @@ func (s *RepositoriesService) List(ctx context.Context, user string, opt *Reposi
 	}

 	// TODO: remove custom Accept headers when APIs fully launch.
-	acceptHeaders := []string{mediaTypeTopicsPreview}
+	acceptHeaders := []string{mediaTypeCodesOfConductPreview, mediaTypeTopicsPreview}
 	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))

 	var repos []*Repository
@@ -220,7 +217,7 @@ func (s *RepositoriesService) ListByOrg(ctx context.Context, org string, opt *Re
 	}

 	// TODO: remove custom Accept headers when APIs fully launch.
-	acceptHeaders := []string{mediaTypeTopicsPreview}
+	acceptHeaders := []string{mediaTypeCodesOfConductPreview, mediaTypeTopicsPreview}
 	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))

 	var repos []*Repository
@@ -262,41 +259,10 @@ func (s *RepositoriesService) ListAll(ctx context.Context, opt *RepositoryListAl
 	return repos, resp, nil
 }

-// createRepoRequest is a subset of Repository and is used internally
-// by Create to pass only the known fields for the endpoint.
-//
-// See https://github.com/google/go-github/issues/1014 for more
-// information.
-type createRepoRequest struct {
-	// Name is required when creating a repo.
-	Name        *string `json:"name,omitempty"`
-	Description *string `json:"description,omitempty"`
-	Homepage    *string `json:"homepage,omitempty"`
-
-	Private     *bool `json:"private,omitempty"`
-	HasIssues   *bool `json:"has_issues,omitempty"`
-	HasProjects *bool `json:"has_projects,omitempty"`
-	HasWiki     *bool `json:"has_wiki,omitempty"`
-	IsTemplate  *bool `json:"is_template,omitempty"`
-
-	// Creating an organization repository. Required for non-owners.
-	TeamID *int64 `json:"team_id,omitempty"`
-
-	AutoInit          *bool   `json:"auto_init,omitempty"`
-	GitignoreTemplate *string `json:"gitignore_template,omitempty"`
-	LicenseTemplate   *string `json:"license_template,omitempty"`
-	AllowSquashMerge  *bool   `json:"allow_squash_merge,omitempty"`
-	AllowMergeCommit  *bool   `json:"allow_merge_commit,omitempty"`
-	AllowRebaseMerge  *bool   `json:"allow_rebase_merge,omitempty"`
-}
-
 // Create a new repository. If an organization is specified, the new
 // repository will be created under that org. If the empty string is
 // specified, it will be created for the authenticated user.
 //
-// Note that only a subset of the repo fields are used and repo must
-// not be nil.
-//
 // GitHub API docs: https://developer.github.com/v3/repos/#create
 func (s *RepositoriesService) Create(ctx context.Context, org string, repo *Repository) (*Repository, *Response, error) {
 	var u string
@@ -306,61 +272,11 @@ func (s *RepositoriesService) Create(ctx context.Context, org string, repo *Repo
 		u = "user/repos"
 	}

-	repoReq := &createRepoRequest{
-		Name:              repo.Name,
-		Description:       repo.Description,
-		Homepage:          repo.Homepage,
-		Private:           repo.Private,
-		HasIssues:         repo.HasIssues,
-		HasProjects:       repo.HasProjects,
-		HasWiki:           repo.HasWiki,
-		IsTemplate:        repo.IsTemplate,
-		TeamID:            repo.TeamID,
-		AutoInit:          repo.AutoInit,
-		GitignoreTemplate: repo.GitignoreTemplate,
-		LicenseTemplate:   repo.LicenseTemplate,
-		AllowSquashMerge:  repo.AllowSquashMerge,
-		AllowMergeCommit:  repo.AllowMergeCommit,
-		AllowRebaseMerge:  repo.AllowRebaseMerge,
-	}
-
-	req, err := s.client.NewRequest("POST", u, repoReq)
+	req, err := s.client.NewRequest("POST", u, repo)
 	if err != nil {
 		return nil, nil, err
 	}

-	req.Header.Set("Accept", mediaTypeRepositoryTemplatePreview)
-	r := new(Repository)
-	resp, err := s.client.Do(ctx, req, r)
-	if err != nil {
-		return nil, resp, err
-	}
-
-	return r, resp, nil
-}
-
-// TemplateRepoRequest represents a request to create a repository from a template.
-type TemplateRepoRequest struct {
-	// Name is required when creating a repo.
-	Name        *string `json:"name,omitempty"`
-	Owner       *string `json:"owner,omitempty"`
-	Description *string `json:"description,omitempty"`
-
-	Private *bool `json:"private,omitempty"`
-}
-
-// CreateFromTemplate generates a repository from a template.
-//
-// GitHub API docs: https://developer.github.com/v3/repos/#create-repository-using-a-repository-template
-func (s *RepositoriesService) CreateFromTemplate(ctx context.Context, templateOwner, templateRepo string, templateRepoReq *TemplateRepoRequest) (*Repository, *Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/generate", templateOwner, templateRepo)
-
-	req, err := s.client.NewRequest("POST", u, templateRepoReq)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	req.Header.Set("Accept", mediaTypeRepositoryTemplatePreview)
 	r := new(Repository)
 	resp, err := s.client.Do(ctx, req, r)
 	if err != nil {
@@ -382,7 +298,7 @@ func (s *RepositoriesService) Get(ctx context.Context, owner, repo string) (*Rep

 	// TODO: remove custom Accept header when the license support fully launches
 	// https://developer.github.com/v3/licenses/#get-a-repositorys-license
-	acceptHeaders := []string{mediaTypeCodesOfConductPreview, mediaTypeTopicsPreview, mediaTypeRepositoryTemplatePreview}
+	acceptHeaders := []string{mediaTypeCodesOfConductPreview, mediaTypeTopicsPreview}
 	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))

 	repository := new(Repository)
@@ -445,7 +361,6 @@ func (s *RepositoriesService) Edit(ctx context.Context, owner, repo string, repo
 		return nil, nil, err
 	}

-	req.Header.Set("Accept", mediaTypeRepositoryTemplatePreview)
 	r := new(Repository)
 	resp, err := s.client.Do(ctx, req, r)
 	if err != nil {
@@ -499,74 +414,6 @@ type ListContributorsOptions struct {
 	ListOptions
 }

-// EnableVulnerabilityAlerts enables vulnerability alerts and the dependency graph for a repository.
-//
-// GitHub API docs: https://developer.github.com/v3/repos/#enable-vulnerability-alerts
-func (s *RepositoriesService) EnableVulnerabilityAlerts(ctx context.Context, owner, repository string) (*Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/vulnerability-alerts", owner, repository)
-
-	req, err := s.client.NewRequest("PUT", u, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	// TODO: remove custom Accept header when this API fully launches
-	req.Header.Set("Accept", mediaTypeRequiredVulnerabilityAlertsPreview)
-
-	return s.client.Do(ctx, req, nil)
-}
-
-// DisableVulnerabilityAlerts disables vulnerability alerts and the dependency graph for a repository.
-//
-// GitHub API docs: https://developer.github.com/v3/repos/#disable-vulnerability-alerts
-func (s *RepositoriesService) DisableVulnerabilityAlerts(ctx context.Context, owner, repository string) (*Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/vulnerability-alerts", owner, repository)
-
-	req, err := s.client.NewRequest("DELETE", u, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	// TODO: remove custom Accept header when this API fully launches
-	req.Header.Set("Accept", mediaTypeRequiredVulnerabilityAlertsPreview)
-
-	return s.client.Do(ctx, req, nil)
-}
-
-// EnableAutomatedSecurityFixes enables the automated security fixes for a repository.
-//
-// GitHub API docs: https://developer.github.com/v3/repos/#enable-automated-security-fixes
-func (s *RepositoriesService) EnableAutomatedSecurityFixes(ctx context.Context, owner, repository string) (*Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/automated-security-fixes", owner, repository)
-
-	req, err := s.client.NewRequest("PUT", u, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	// TODO: remove custom Accept header when this API fully launches
-	req.Header.Set("Accept", mediaTypeRequiredAutomatedSecurityFixesPreview)
-
-	return s.client.Do(ctx, req, nil)
-}
-
-// DisableAutomatedSecurityFixes disables vulnerability alerts and the dependency graph for a repository.
-//
-// GitHub API docs: https://developer.github.com/v3/repos/#disable-automated-security-fixes
-func (s *RepositoriesService) DisableAutomatedSecurityFixes(ctx context.Context, owner, repository string) (*Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/automated-security-fixes", owner, repository)
-
-	req, err := s.client.NewRequest("DELETE", u, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	// TODO: remove custom Accept header when this API fully launches
-	req.Header.Set("Accept", mediaTypeRequiredAutomatedSecurityFixesPreview)
-
-	return s.client.Do(ctx, req, nil)
-}
-
 // ListContributors lists contributors for a repository.
 //
 // GitHub API docs: https://developer.github.com/v3/repos/#list-contributors
@@ -804,13 +651,6 @@ type DismissalRestrictionsRequest struct {
 	Teams *[]string `json:"teams,omitempty"`
 }

-// SignaturesProtectedBranch represents the protection status of an individual branch.
-type SignaturesProtectedBranch struct {
-	URL *string `json:"url,omitempty"`
-	// Commits pushed to matching branches must have verified signatures.
-	Enabled *bool `json:"enabled,omitempty"`
-}
-
 // ListBranches lists branches for the specified repository.
 //
 // GitHub API docs: https://developer.github.com/v3/repos/#list-branches
@@ -963,67 +803,6 @@ func (s *RepositoriesService) RemoveBranchProtection(ctx context.Context, owner,
 	return s.client.Do(ctx, req, nil)
 }

-// GetSignaturesProtectedBranch gets required signatures of protected branch.
-//
-// GitHub API docs: https://developer.github.com/v3/repos/branches/#get-required-signatures-of-protected-branch
-func (s *RepositoriesService) GetSignaturesProtectedBranch(ctx context.Context, owner, repo, branch string) (*SignaturesProtectedBranch, *Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/branches/%v/protection/required_signatures", owner, repo, branch)
-	req, err := s.client.NewRequest("GET", u, nil)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	// TODO: remove custom Accept header when this API fully launches
-	req.Header.Set("Accept", mediaTypeSignaturePreview)
-
-	p := new(SignaturesProtectedBranch)
-	resp, err := s.client.Do(ctx, req, p)
-	if err != nil {
-		return nil, resp, err
-	}
-
-	return p, resp, nil
-}
-
-// RequireSignaturesOnProtectedBranch makes signed commits required on a protected branch.
-// It requires admin access and branch protection to be enabled.
-//
-// GitHub API docs: https://developer.github.com/v3/repos/branches/#add-required-signatures-of-protected-branch
-func (s *RepositoriesService) RequireSignaturesOnProtectedBranch(ctx context.Context, owner, repo, branch string) (*SignaturesProtectedBranch, *Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/branches/%v/protection/required_signatures", owner, repo, branch)
-	req, err := s.client.NewRequest("POST", u, nil)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	// TODO: remove custom Accept header when this API fully launches
-	req.Header.Set("Accept", mediaTypeSignaturePreview)
-
-	r := new(SignaturesProtectedBranch)
-	resp, err := s.client.Do(ctx, req, r)
-	if err != nil {
-		return nil, resp, err
-	}
-
-	return r, resp, err
-}
-
-// OptionalSignaturesOnProtectedBranch removes required signed commits on a given branch.
-//
-// GitHub API docs: https://developer.github.com/v3/repos/branches/#remove-required-signatures-of-protected-branch
-func (s *RepositoriesService) OptionalSignaturesOnProtectedBranch(ctx context.Context, owner, repo, branch string) (*Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/branches/%v/protection/required_signatures", owner, repo, branch)
-	req, err := s.client.NewRequest("DELETE", u, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	// TODO: remove custom Accept header when this API fully launches
-	req.Header.Set("Accept", mediaTypeSignaturePreview)
-
-	return s.client.Do(ctx, req, nil)
-}
-
 // UpdateRequiredStatusChecks updates the required status checks for a given protected branch.
 //
 // GitHub API docs: https://developer.github.com/v3/repos/branches/#update-required-status-checks-of-protected-branch
--- a/vendor/github.com/google/go-github/v28/github/repos_collaborators.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_collaborators.go
@@ -120,6 +120,9 @@ func (s *RepositoriesService) AddCollaborator(ctx context.Context, owner, repo,
 		return nil, err
 	}

+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeRepositoryInvitationsPreview)
+
 	return s.client.Do(ctx, req, nil)
 }

--- a/vendor/github.com/google/go-github/v28/github/repos_comments.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_comments.go
@@ -16,7 +16,6 @@ type RepositoryComment struct {
 	HTMLURL   *string    `json:"html_url,omitempty"`
 	URL       *string    `json:"url,omitempty"`
 	ID        *int64     `json:"id,omitempty"`
-	NodeID    *string    `json:"node_id,omitempty"`
 	CommitID  *string    `json:"commit_id,omitempty"`
 	User      *User      `json:"user,omitempty"`
 	Reactions *Reactions `json:"reactions,omitempty"`
--- a/vendor/github.com/google/go-github/github/repos_commits.go
+++ b/vendor/github.com/google/go-github/github/repos_commits.go
@@ -0,0 +1,237 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"time"
+)
+
+// RepositoryCommit represents a commit in a repo.
+// Note that it's wrapping a Commit, so author/committer information is in two places,
+// but contain different details about them: in RepositoryCommit "github details", in Commit - "git details".
+type RepositoryCommit struct {
+	SHA         *string  `json:"sha,omitempty"`
+	Commit      *Commit  `json:"commit,omitempty"`
+	Author      *User    `json:"author,omitempty"`
+	Committer   *User    `json:"committer,omitempty"`
+	Parents     []Commit `json:"parents,omitempty"`
+	HTMLURL     *string  `json:"html_url,omitempty"`
+	URL         *string  `json:"url,omitempty"`
+	CommentsURL *string  `json:"comments_url,omitempty"`
+
+	// Details about how many changes were made in this commit. Only filled in during GetCommit!
+	Stats *CommitStats `json:"stats,omitempty"`
+	// Details about which files, and how this commit touched. Only filled in during GetCommit!
+	Files []CommitFile `json:"files,omitempty"`
+}
+
+func (r RepositoryCommit) String() string {
+	return Stringify(r)
+}
+
+// CommitStats represents the number of additions / deletions from a file in a given RepositoryCommit or GistCommit.
+type CommitStats struct {
+	Additions *int `json:"additions,omitempty"`
+	Deletions *int `json:"deletions,omitempty"`
+	Total     *int `json:"total,omitempty"`
+}
+
+func (c CommitStats) String() string {
+	return Stringify(c)
+}
+
+// CommitFile represents a file modified in a commit.
+type CommitFile struct {
+	SHA         *string `json:"sha,omitempty"`
+	Filename    *string `json:"filename,omitempty"`
+	Additions   *int    `json:"additions,omitempty"`
+	Deletions   *int    `json:"deletions,omitempty"`
+	Changes     *int    `json:"changes,omitempty"`
+	Status      *string `json:"status,omitempty"`
+	Patch       *string `json:"patch,omitempty"`
+	BlobURL     *string `json:"blob_url,omitempty"`
+	RawURL      *string `json:"raw_url,omitempty"`
+	ContentsURL *string `json:"contents_url,omitempty"`
+}
+
+func (c CommitFile) String() string {
+	return Stringify(c)
+}
+
+// CommitsComparison is the result of comparing two commits.
+// See CompareCommits() for details.
+type CommitsComparison struct {
+	BaseCommit      *RepositoryCommit `json:"base_commit,omitempty"`
+	MergeBaseCommit *RepositoryCommit `json:"merge_base_commit,omitempty"`
+
+	// Head can be 'behind' or 'ahead'
+	Status       *string `json:"status,omitempty"`
+	AheadBy      *int    `json:"ahead_by,omitempty"`
+	BehindBy     *int    `json:"behind_by,omitempty"`
+	TotalCommits *int    `json:"total_commits,omitempty"`
+
+	Commits []RepositoryCommit `json:"commits,omitempty"`
+
+	Files []CommitFile `json:"files,omitempty"`
+
+	HTMLURL      *string `json:"html_url,omitempty"`
+	PermalinkURL *string `json:"permalink_url,omitempty"`
+	DiffURL      *string `json:"diff_url,omitempty"`
+	PatchURL     *string `json:"patch_url,omitempty"`
+	URL          *string `json:"url,omitempty"` // API URL.
+}
+
+func (c CommitsComparison) String() string {
+	return Stringify(c)
+}
+
+// CommitsListOptions specifies the optional parameters to the
+// RepositoriesService.ListCommits method.
+type CommitsListOptions struct {
+	// SHA or branch to start listing Commits from.
+	SHA string `url:"sha,omitempty"`
+
+	// Path that should be touched by the returned Commits.
+	Path string `url:"path,omitempty"`
+
+	// Author of by which to filter Commits.
+	Author string `url:"author,omitempty"`
+
+	// Since when should Commits be included in the response.
+	Since time.Time `url:"since,omitempty"`
+
+	// Until when should Commits be included in the response.
+	Until time.Time `url:"until,omitempty"`
+
+	ListOptions
+}
+
+// ListCommits lists the commits of a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/commits/#list
+func (s *RepositoriesService) ListCommits(ctx context.Context, owner, repo string, opt *CommitsListOptions) ([]*RepositoryCommit, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/commits", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeGitSigningPreview)
+
+	var commits []*RepositoryCommit
+	resp, err := s.client.Do(ctx, req, &commits)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return commits, resp, nil
+}
+
+// GetCommit fetches the specified commit, including all details about it.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/commits/#get-a-single-commit
+// See also: https://developer.github.com/v3/git/commits/#get-a-single-commit provides the same functionality
+func (s *RepositoriesService) GetCommit(ctx context.Context, owner, repo, sha string) (*RepositoryCommit, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/commits/%v", owner, repo, sha)
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeGitSigningPreview)
+
+	commit := new(RepositoryCommit)
+	resp, err := s.client.Do(ctx, req, commit)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return commit, resp, nil
+}
+
+// GetCommitRaw fetches the specified commit in raw (diff or patch) format.
+func (s *RepositoriesService) GetCommitRaw(ctx context.Context, owner string, repo string, sha string, opt RawOptions) (string, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/commits/%v", owner, repo, sha)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return "", nil, err
+	}
+
+	switch opt.Type {
+	case Diff:
+		req.Header.Set("Accept", mediaTypeV3Diff)
+	case Patch:
+		req.Header.Set("Accept", mediaTypeV3Patch)
+	default:
+		return "", nil, fmt.Errorf("unsupported raw type %d", opt.Type)
+	}
+
+	var buf bytes.Buffer
+	resp, err := s.client.Do(ctx, req, &buf)
+	if err != nil {
+		return "", resp, err
+	}
+
+	return buf.String(), resp, nil
+}
+
+// GetCommitSHA1 gets the SHA-1 of a commit reference. If a last-known SHA1 is
+// supplied and no new commits have occurred, a 304 Unmodified response is returned.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/commits/#get-the-sha-1-of-a-commit-reference
+func (s *RepositoriesService) GetCommitSHA1(ctx context.Context, owner, repo, ref, lastSHA string) (string, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/commits/%v", owner, repo, ref)
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return "", nil, err
+	}
+	if lastSHA != "" {
+		req.Header.Set("If-None-Match", `"`+lastSHA+`"`)
+	}
+
+	req.Header.Set("Accept", mediaTypeV3SHA)
+
+	var buf bytes.Buffer
+	resp, err := s.client.Do(ctx, req, &buf)
+	if err != nil {
+		return "", resp, err
+	}
+
+	return buf.String(), resp, nil
+}
+
+// CompareCommits compares a range of commits with each other.
+// todo: support media formats - https://github.com/google/go-github/issues/6
+//
+// GitHub API docs: https://developer.github.com/v3/repos/commits/#compare-two-commits
+func (s *RepositoriesService) CompareCommits(ctx context.Context, owner, repo string, base, head string) (*CommitsComparison, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/compare/%v...%v", owner, repo, base, head)
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	comp := new(CommitsComparison)
+	resp, err := s.client.Do(ctx, req, comp)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return comp, resp, nil
+}
--- a/vendor/github.com/google/go-github/v28/github/repos_community_health.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_community_health.go
--- a/vendor/github.com/google/go-github/v28/github/repos_contents.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_contents.go
@@ -21,10 +21,7 @@ import (

 // RepositoryContent represents a file or directory in a github repository.
 type RepositoryContent struct {
-	Type *string `json:"type,omitempty"`
-	// Target is only set if the type is "symlink" and the target is not a normal file.
-	// If Target is set, Path will be the symlink path.
-	Target   *string `json:"target,omitempty"`
+	Type     *string `json:"type,omitempty"`
 	Encoding *string `json:"encoding,omitempty"`
 	Size     *int    `json:"size,omitempty"`
 	Name     *string `json:"name,omitempty"`
--- a/vendor/github.com/google/go-github/v28/github/repos_deployments.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_deployments.go
@@ -9,7 +9,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"strings"
 )

 // Deployment represents a deployment in a repo
@@ -117,8 +116,7 @@ func (s *RepositoriesService) CreateDeployment(ctx context.Context, owner, repo
 	}

 	// TODO: remove custom Accept headers when APIs fully launch.
-	acceptHeaders := []string{mediaTypeDeploymentStatusPreview, mediaTypeExpandDeploymentStatusPreview}
-	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))
+	req.Header.Set("Accept", mediaTypeDeploymentStatusPreview)

 	d := new(Deployment)
 	resp, err := s.client.Do(ctx, req, d)
@@ -151,7 +149,6 @@ type DeploymentStatusRequest struct {
 	State          *string `json:"state,omitempty"`
 	LogURL         *string `json:"log_url,omitempty"`
 	Description    *string `json:"description,omitempty"`
-	Environment    *string `json:"environment,omitempty"`
 	EnvironmentURL *string `json:"environment_url,omitempty"`
 	AutoInactive   *bool   `json:"auto_inactive,omitempty"`
 }
@@ -192,8 +189,7 @@ func (s *RepositoriesService) GetDeploymentStatus(ctx context.Context, owner, re
 	}

 	// TODO: remove custom Accept headers when APIs fully launch.
-	acceptHeaders := []string{mediaTypeDeploymentStatusPreview, mediaTypeExpandDeploymentStatusPreview}
-	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))
+	req.Header.Set("Accept", mediaTypeDeploymentStatusPreview)

 	d := new(DeploymentStatus)
 	resp, err := s.client.Do(ctx, req, d)
@@ -216,8 +212,7 @@ func (s *RepositoriesService) CreateDeploymentStatus(ctx context.Context, owner,
 	}

 	// TODO: remove custom Accept headers when APIs fully launch.
-	acceptHeaders := []string{mediaTypeDeploymentStatusPreview, mediaTypeExpandDeploymentStatusPreview}
-	req.Header.Set("Accept", strings.Join(acceptHeaders, ", "))
+	req.Header.Set("Accept", mediaTypeDeploymentStatusPreview)

 	d := new(DeploymentStatus)
 	resp, err := s.client.Do(ctx, req, d)
--- a/vendor/github.com/google/go-github/github/repos_forks.go
+++ b/vendor/github.com/google/go-github/github/repos_forks.go
@@ -0,0 +1,89 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+)
+
+// RepositoryListForksOptions specifies the optional parameters to the
+// RepositoriesService.ListForks method.
+type RepositoryListForksOptions struct {
+	// How to sort the forks list. Possible values are: newest, oldest,
+	// watchers. Default is "newest".
+	Sort string `url:"sort,omitempty"`
+
+	ListOptions
+}
+
+// ListForks lists the forks of the specified repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/forks/#list-forks
+func (s *RepositoriesService) ListForks(ctx context.Context, owner, repo string, opt *RepositoryListForksOptions) ([]*Repository, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/forks", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when topics API fully launches.
+	req.Header.Set("Accept", mediaTypeTopicsPreview)
+
+	var repos []*Repository
+	resp, err := s.client.Do(ctx, req, &repos)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return repos, resp, nil
+}
+
+// RepositoryCreateForkOptions specifies the optional parameters to the
+// RepositoriesService.CreateFork method.
+type RepositoryCreateForkOptions struct {
+	// The organization to fork the repository into.
+	Organization string `url:"organization,omitempty"`
+}
+
+// CreateFork creates a fork of the specified repository.
+//
+// This method might return an *AcceptedError and a status code of
+// 202. This is because this is the status that GitHub returns to signify that
+// it is now computing creating the fork in a background task. In this event,
+// the Repository value will be returned, which includes the details about the pending fork.
+// A follow up request, after a delay of a second or so, should result
+// in a successful request.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/forks/#create-a-fork
+func (s *RepositoriesService) CreateFork(ctx context.Context, owner, repo string, opt *RepositoryCreateForkOptions) (*Repository, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/forks", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("POST", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	fork := new(Repository)
+	resp, err := s.client.Do(ctx, req, fork)
+	if _, ok := err.(*AcceptedError); ok {
+		return fork, resp, err
+	}
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return fork, resp, nil
+}
--- a/vendor/github.com/google/go-github/github/repos_hooks.go
+++ b/vendor/github.com/google/go-github/github/repos_hooks.go
@@ -0,0 +1,200 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+	"time"
+)
+
+// WebHookPayload represents the data that is received from GitHub when a push
+// event hook is triggered. The format of these payloads pre-date most of the
+// GitHub v3 API, so there are lots of minor incompatibilities with the types
+// defined in the rest of the API. Therefore, several types are duplicated
+// here to account for these differences.
+//
+// GitHub API docs: https://help.github.com/articles/post-receive-hooks
+type WebHookPayload struct {
+	After      *string         `json:"after,omitempty"`
+	Before     *string         `json:"before,omitempty"`
+	Commits    []WebHookCommit `json:"commits,omitempty"`
+	Compare    *string         `json:"compare,omitempty"`
+	Created    *bool           `json:"created,omitempty"`
+	Deleted    *bool           `json:"deleted,omitempty"`
+	Forced     *bool           `json:"forced,omitempty"`
+	HeadCommit *WebHookCommit  `json:"head_commit,omitempty"`
+	Pusher     *User           `json:"pusher,omitempty"`
+	Ref        *string         `json:"ref,omitempty"`
+	Repo       *Repository     `json:"repository,omitempty"`
+	Sender     *User           `json:"sender,omitempty"`
+}
+
+func (w WebHookPayload) String() string {
+	return Stringify(w)
+}
+
+// WebHookCommit represents the commit variant we receive from GitHub in a
+// WebHookPayload.
+type WebHookCommit struct {
+	Added     []string       `json:"added,omitempty"`
+	Author    *WebHookAuthor `json:"author,omitempty"`
+	Committer *WebHookAuthor `json:"committer,omitempty"`
+	Distinct  *bool          `json:"distinct,omitempty"`
+	ID        *string        `json:"id,omitempty"`
+	Message   *string        `json:"message,omitempty"`
+	Modified  []string       `json:"modified,omitempty"`
+	Removed   []string       `json:"removed,omitempty"`
+	Timestamp *time.Time     `json:"timestamp,omitempty"`
+}
+
+func (w WebHookCommit) String() string {
+	return Stringify(w)
+}
+
+// WebHookAuthor represents the author or committer of a commit, as specified
+// in a WebHookCommit. The commit author may not correspond to a GitHub User.
+type WebHookAuthor struct {
+	Email    *string `json:"email,omitempty"`
+	Name     *string `json:"name,omitempty"`
+	Username *string `json:"username,omitempty"`
+}
+
+func (w WebHookAuthor) String() string {
+	return Stringify(w)
+}
+
+// Hook represents a GitHub (web and service) hook for a repository.
+type Hook struct {
+	CreatedAt *time.Time             `json:"created_at,omitempty"`
+	UpdatedAt *time.Time             `json:"updated_at,omitempty"`
+	Name      *string                `json:"name,omitempty"`
+	URL       *string                `json:"url,omitempty"`
+	Events    []string               `json:"events,omitempty"`
+	Active    *bool                  `json:"active,omitempty"`
+	Config    map[string]interface{} `json:"config,omitempty"`
+	ID        *int64                 `json:"id,omitempty"`
+}
+
+func (h Hook) String() string {
+	return Stringify(h)
+}
+
+// CreateHook creates a Hook for the specified repository.
+// Name and Config are required fields.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/hooks/#create-a-hook
+func (s *RepositoriesService) CreateHook(ctx context.Context, owner, repo string, hook *Hook) (*Hook, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/hooks", owner, repo)
+	req, err := s.client.NewRequest("POST", u, hook)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	h := new(Hook)
+	resp, err := s.client.Do(ctx, req, h)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return h, resp, nil
+}
+
+// ListHooks lists all Hooks for the specified repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/hooks/#list
+func (s *RepositoriesService) ListHooks(ctx context.Context, owner, repo string, opt *ListOptions) ([]*Hook, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/hooks", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var hooks []*Hook
+	resp, err := s.client.Do(ctx, req, &hooks)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return hooks, resp, nil
+}
+
+// GetHook returns a single specified Hook.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/hooks/#get-single-hook
+func (s *RepositoriesService) GetHook(ctx context.Context, owner, repo string, id int64) (*Hook, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/hooks/%d", owner, repo, id)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+	h := new(Hook)
+	resp, err := s.client.Do(ctx, req, h)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return h, resp, nil
+}
+
+// EditHook updates a specified Hook.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/hooks/#edit-a-hook
+func (s *RepositoriesService) EditHook(ctx context.Context, owner, repo string, id int64, hook *Hook) (*Hook, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/hooks/%d", owner, repo, id)
+	req, err := s.client.NewRequest("PATCH", u, hook)
+	if err != nil {
+		return nil, nil, err
+	}
+	h := new(Hook)
+	resp, err := s.client.Do(ctx, req, h)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return h, resp, nil
+}
+
+// DeleteHook deletes a specified Hook.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/hooks/#delete-a-hook
+func (s *RepositoriesService) DeleteHook(ctx context.Context, owner, repo string, id int64) (*Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/hooks/%d", owner, repo, id)
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+	return s.client.Do(ctx, req, nil)
+}
+
+// PingHook triggers a 'ping' event to be sent to the Hook.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/hooks/#ping-a-hook
+func (s *RepositoriesService) PingHook(ctx context.Context, owner, repo string, id int64) (*Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/hooks/%d/pings", owner, repo, id)
+	req, err := s.client.NewRequest("POST", u, nil)
+	if err != nil {
+		return nil, err
+	}
+	return s.client.Do(ctx, req, nil)
+}
+
+// TestHook triggers a test Hook by github.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/hooks/#test-a-push-hook
+func (s *RepositoriesService) TestHook(ctx context.Context, owner, repo string, id int64) (*Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/hooks/%d/tests", owner, repo, id)
+	req, err := s.client.NewRequest("POST", u, nil)
+	if err != nil {
+		return nil, err
+	}
+	return s.client.Do(ctx, req, nil)
+}
--- a/vendor/github.com/google/go-github/github/repos_invitations.go
+++ b/vendor/github.com/google/go-github/github/repos_invitations.go
@@ -0,0 +1,98 @@
+// Copyright 2016 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+)
+
+// RepositoryInvitation represents an invitation to collaborate on a repo.
+type RepositoryInvitation struct {
+	ID      *int64      `json:"id,omitempty"`
+	Repo    *Repository `json:"repository,omitempty"`
+	Invitee *User       `json:"invitee,omitempty"`
+	Inviter *User       `json:"inviter,omitempty"`
+
+	// Permissions represents the permissions that the associated user will have
+	// on the repository. Possible values are: "read", "write", "admin".
+	Permissions *string    `json:"permissions,omitempty"`
+	CreatedAt   *Timestamp `json:"created_at,omitempty"`
+	URL         *string    `json:"url,omitempty"`
+	HTMLURL     *string    `json:"html_url,omitempty"`
+}
+
+// ListInvitations lists all currently-open repository invitations.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/invitations/#list-invitations-for-a-repository
+func (s *RepositoriesService) ListInvitations(ctx context.Context, owner, repo string, opt *ListOptions) ([]*RepositoryInvitation, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/invitations", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeRepositoryInvitationsPreview)
+
+	invites := []*RepositoryInvitation{}
+	resp, err := s.client.Do(ctx, req, &invites)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return invites, resp, nil
+}
+
+// DeleteInvitation deletes a repository invitation.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/invitations/#delete-a-repository-invitation
+func (s *RepositoriesService) DeleteInvitation(ctx context.Context, owner, repo string, invitationID int64) (*Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/invitations/%v", owner, repo, invitationID)
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeRepositoryInvitationsPreview)
+
+	return s.client.Do(ctx, req, nil)
+}
+
+// UpdateInvitation updates the permissions associated with a repository
+// invitation.
+//
+// permissions represents the permissions that the associated user will have
+// on the repository. Possible values are: "read", "write", "admin".
+//
+// GitHub API docs: https://developer.github.com/v3/repos/invitations/#update-a-repository-invitation
+func (s *RepositoriesService) UpdateInvitation(ctx context.Context, owner, repo string, invitationID int64, permissions string) (*RepositoryInvitation, *Response, error) {
+	opts := &struct {
+		Permissions string `json:"permissions"`
+	}{Permissions: permissions}
+	u := fmt.Sprintf("repos/%v/%v/invitations/%v", owner, repo, invitationID)
+	req, err := s.client.NewRequest("PATCH", u, opts)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeRepositoryInvitationsPreview)
+
+	invite := &RepositoryInvitation{}
+	resp, err := s.client.Do(ctx, req, invite)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return invite, resp, nil
+}
--- a/vendor/github.com/google/go-github/v28/github/repos_keys.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_keys.go
--- a/vendor/github.com/google/go-github/v28/github/repos_merging.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_merging.go
--- a/vendor/github.com/google/go-github/github/repos_pages.go
+++ b/vendor/github.com/google/go-github/github/repos_pages.go
@@ -0,0 +1,143 @@
+// Copyright 2014 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"fmt"
+)
+
+// Pages represents a GitHub Pages site configuration.
+type Pages struct {
+	URL       *string `json:"url,omitempty"`
+	Status    *string `json:"status,omitempty"`
+	CNAME     *string `json:"cname,omitempty"`
+	Custom404 *bool   `json:"custom_404,omitempty"`
+	HTMLURL   *string `json:"html_url,omitempty"`
+}
+
+// PagesError represents a build error for a GitHub Pages site.
+type PagesError struct {
+	Message *string `json:"message,omitempty"`
+}
+
+// PagesBuild represents the build information for a GitHub Pages site.
+type PagesBuild struct {
+	URL       *string     `json:"url,omitempty"`
+	Status    *string     `json:"status,omitempty"`
+	Error     *PagesError `json:"error,omitempty"`
+	Pusher    *User       `json:"pusher,omitempty"`
+	Commit    *string     `json:"commit,omitempty"`
+	Duration  *int        `json:"duration,omitempty"`
+	CreatedAt *Timestamp  `json:"created_at,omitempty"`
+	UpdatedAt *Timestamp  `json:"updated_at,omitempty"`
+}
+
+// GetPagesInfo fetches information about a GitHub Pages site.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/pages/#get-information-about-a-pages-site
+func (s *RepositoriesService) GetPagesInfo(ctx context.Context, owner, repo string) (*Pages, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pages", owner, repo)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypePagesPreview)
+
+	site := new(Pages)
+	resp, err := s.client.Do(ctx, req, site)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return site, resp, nil
+}
+
+// ListPagesBuilds lists the builds for a GitHub Pages site.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/pages/#list-pages-builds
+func (s *RepositoriesService) ListPagesBuilds(ctx context.Context, owner, repo string, opt *ListOptions) ([]*PagesBuild, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pages/builds", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var pages []*PagesBuild
+	resp, err := s.client.Do(ctx, req, &pages)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return pages, resp, nil
+}
+
+// GetLatestPagesBuild fetches the latest build information for a GitHub pages site.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/pages/#list-latest-pages-build
+func (s *RepositoriesService) GetLatestPagesBuild(ctx context.Context, owner, repo string) (*PagesBuild, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pages/builds/latest", owner, repo)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	build := new(PagesBuild)
+	resp, err := s.client.Do(ctx, req, build)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return build, resp, nil
+}
+
+// GetPageBuild fetches the specific build information for a GitHub pages site.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/pages/#list-a-specific-pages-build
+func (s *RepositoriesService) GetPageBuild(ctx context.Context, owner, repo string, id int64) (*PagesBuild, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pages/builds/%v", owner, repo, id)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	build := new(PagesBuild)
+	resp, err := s.client.Do(ctx, req, build)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return build, resp, nil
+}
+
+// RequestPageBuild requests a build of a GitHub Pages site without needing to push new commit.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/pages/#request-a-page-build
+func (s *RepositoriesService) RequestPageBuild(ctx context.Context, owner, repo string) (*PagesBuild, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/pages/builds", owner, repo)
+	req, err := s.client.NewRequest("POST", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypePagesPreview)
+
+	build := new(PagesBuild)
+	resp, err := s.client.Do(ctx, req, build)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return build, resp, nil
+}
--- a/vendor/github.com/google/go-github/v28/github/repos_prereceive_hooks.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_prereceive_hooks.go
--- a/vendor/github.com/google/go-github/v28/github/repos_projects.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_projects.go
--- a/vendor/github.com/google/go-github/github/repos_releases.go
+++ b/vendor/github.com/google/go-github/github/repos_releases.go
@@ -0,0 +1,329 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"mime"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// RepositoryRelease represents a GitHub release in a repository.
+type RepositoryRelease struct {
+	ID              *int64         `json:"id,omitempty"`
+	TagName         *string        `json:"tag_name,omitempty"`
+	TargetCommitish *string        `json:"target_commitish,omitempty"`
+	Name            *string        `json:"name,omitempty"`
+	Body            *string        `json:"body,omitempty"`
+	Draft           *bool          `json:"draft,omitempty"`
+	Prerelease      *bool          `json:"prerelease,omitempty"`
+	CreatedAt       *Timestamp     `json:"created_at,omitempty"`
+	PublishedAt     *Timestamp     `json:"published_at,omitempty"`
+	URL             *string        `json:"url,omitempty"`
+	HTMLURL         *string        `json:"html_url,omitempty"`
+	AssetsURL       *string        `json:"assets_url,omitempty"`
+	Assets          []ReleaseAsset `json:"assets,omitempty"`
+	UploadURL       *string        `json:"upload_url,omitempty"`
+	ZipballURL      *string        `json:"zipball_url,omitempty"`
+	TarballURL      *string        `json:"tarball_url,omitempty"`
+	Author          *User          `json:"author,omitempty"`
+	NodeID          *string        `json:"node_id,omitempty"`
+}
+
+func (r RepositoryRelease) String() string {
+	return Stringify(r)
+}
+
+// ReleaseAsset represents a GitHub release asset in a repository.
+type ReleaseAsset struct {
+	ID                 *int64     `json:"id,omitempty"`
+	URL                *string    `json:"url,omitempty"`
+	Name               *string    `json:"name,omitempty"`
+	Label              *string    `json:"label,omitempty"`
+	State              *string    `json:"state,omitempty"`
+	ContentType        *string    `json:"content_type,omitempty"`
+	Size               *int       `json:"size,omitempty"`
+	DownloadCount      *int       `json:"download_count,omitempty"`
+	CreatedAt          *Timestamp `json:"created_at,omitempty"`
+	UpdatedAt          *Timestamp `json:"updated_at,omitempty"`
+	BrowserDownloadURL *string    `json:"browser_download_url,omitempty"`
+	Uploader           *User      `json:"uploader,omitempty"`
+	NodeID             *string    `json:"node_id,omitempty"`
+}
+
+func (r ReleaseAsset) String() string {
+	return Stringify(r)
+}
+
+// ListReleases lists the releases for a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#list-releases-for-a-repository
+func (s *RepositoriesService) ListReleases(ctx context.Context, owner, repo string, opt *ListOptions) ([]*RepositoryRelease, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var releases []*RepositoryRelease
+	resp, err := s.client.Do(ctx, req, &releases)
+	if err != nil {
+		return nil, resp, err
+	}
+	return releases, resp, nil
+}
+
+// GetRelease fetches a single release.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#get-a-single-release
+func (s *RepositoriesService) GetRelease(ctx context.Context, owner, repo string, id int64) (*RepositoryRelease, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/%d", owner, repo, id)
+	return s.getSingleRelease(ctx, u)
+}
+
+// GetLatestRelease fetches the latest published release for the repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#get-the-latest-release
+func (s *RepositoriesService) GetLatestRelease(ctx context.Context, owner, repo string) (*RepositoryRelease, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/latest", owner, repo)
+	return s.getSingleRelease(ctx, u)
+}
+
+// GetReleaseByTag fetches a release with the specified tag.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#get-a-release-by-tag-name
+func (s *RepositoriesService) GetReleaseByTag(ctx context.Context, owner, repo, tag string) (*RepositoryRelease, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/tags/%s", owner, repo, tag)
+	return s.getSingleRelease(ctx, u)
+}
+
+func (s *RepositoriesService) getSingleRelease(ctx context.Context, url string) (*RepositoryRelease, *Response, error) {
+	req, err := s.client.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	release := new(RepositoryRelease)
+	resp, err := s.client.Do(ctx, req, release)
+	if err != nil {
+		return nil, resp, err
+	}
+	return release, resp, nil
+}
+
+// CreateRelease adds a new release for a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#create-a-release
+func (s *RepositoriesService) CreateRelease(ctx context.Context, owner, repo string, release *RepositoryRelease) (*RepositoryRelease, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases", owner, repo)
+
+	req, err := s.client.NewRequest("POST", u, release)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	r := new(RepositoryRelease)
+	resp, err := s.client.Do(ctx, req, r)
+	if err != nil {
+		return nil, resp, err
+	}
+	return r, resp, nil
+}
+
+// EditRelease edits a repository release.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#edit-a-release
+func (s *RepositoriesService) EditRelease(ctx context.Context, owner, repo string, id int64, release *RepositoryRelease) (*RepositoryRelease, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/%d", owner, repo, id)
+
+	req, err := s.client.NewRequest("PATCH", u, release)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	r := new(RepositoryRelease)
+	resp, err := s.client.Do(ctx, req, r)
+	if err != nil {
+		return nil, resp, err
+	}
+	return r, resp, nil
+}
+
+// DeleteRelease delete a single release from a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#delete-a-release
+func (s *RepositoriesService) DeleteRelease(ctx context.Context, owner, repo string, id int64) (*Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/%d", owner, repo, id)
+
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+	return s.client.Do(ctx, req, nil)
+}
+
+// ListReleaseAssets lists the release's assets.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#list-assets-for-a-release
+func (s *RepositoriesService) ListReleaseAssets(ctx context.Context, owner, repo string, id int64, opt *ListOptions) ([]*ReleaseAsset, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/%d/assets", owner, repo, id)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var assets []*ReleaseAsset
+	resp, err := s.client.Do(ctx, req, &assets)
+	if err != nil {
+		return nil, resp, err
+	}
+	return assets, resp, nil
+}
+
+// GetReleaseAsset fetches a single release asset.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#get-a-single-release-asset
+func (s *RepositoriesService) GetReleaseAsset(ctx context.Context, owner, repo string, id int64) (*ReleaseAsset, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/assets/%d", owner, repo, id)
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	asset := new(ReleaseAsset)
+	resp, err := s.client.Do(ctx, req, asset)
+	if err != nil {
+		return nil, resp, err
+	}
+	return asset, resp, nil
+}
+
+// DownloadReleaseAsset downloads a release asset or returns a redirect URL.
+//
+// DownloadReleaseAsset returns an io.ReadCloser that reads the contents of the
+// specified release asset. It is the caller's responsibility to close the ReadCloser.
+// If a redirect is returned, the redirect URL will be returned as a string instead
+// of the io.ReadCloser. Exactly one of rc and redirectURL will be zero.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#get-a-single-release-asset
+func (s *RepositoriesService) DownloadReleaseAsset(ctx context.Context, owner, repo string, id int64) (rc io.ReadCloser, redirectURL string, err error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/assets/%d", owner, repo, id)
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, "", err
+	}
+	req.Header.Set("Accept", defaultMediaType)
+
+	s.client.clientMu.Lock()
+	defer s.client.clientMu.Unlock()
+
+	var loc string
+	saveRedirect := s.client.client.CheckRedirect
+	s.client.client.CheckRedirect = func(req *http.Request, via []*http.Request) error {
+		loc = req.URL.String()
+		return errors.New("disable redirect")
+	}
+	defer func() { s.client.client.CheckRedirect = saveRedirect }()
+
+	req = withContext(ctx, req)
+	resp, err := s.client.client.Do(req)
+	if err != nil {
+		if !strings.Contains(err.Error(), "disable redirect") {
+			return nil, "", err
+		}
+		return nil, loc, nil // Intentionally return no error with valid redirect URL.
+	}
+
+	if err := CheckResponse(resp); err != nil {
+		resp.Body.Close()
+		return nil, "", err
+	}
+
+	return resp.Body, "", nil
+}
+
+// EditReleaseAsset edits a repository release asset.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#edit-a-release-asset
+func (s *RepositoriesService) EditReleaseAsset(ctx context.Context, owner, repo string, id int64, release *ReleaseAsset) (*ReleaseAsset, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/assets/%d", owner, repo, id)
+
+	req, err := s.client.NewRequest("PATCH", u, release)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	asset := new(ReleaseAsset)
+	resp, err := s.client.Do(ctx, req, asset)
+	if err != nil {
+		return nil, resp, err
+	}
+	return asset, resp, nil
+}
+
+// DeleteReleaseAsset delete a single release asset from a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#delete-a-release-asset
+func (s *RepositoriesService) DeleteReleaseAsset(ctx context.Context, owner, repo string, id int64) (*Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/assets/%d", owner, repo, id)
+
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+	return s.client.Do(ctx, req, nil)
+}
+
+// UploadReleaseAsset creates an asset by uploading a file into a release repository.
+// To upload assets that cannot be represented by an os.File, call NewUploadRequest directly.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/releases/#upload-a-release-asset
+func (s *RepositoriesService) UploadReleaseAsset(ctx context.Context, owner, repo string, id int64, opt *UploadOptions, file *os.File) (*ReleaseAsset, *Response, error) {
+	u := fmt.Sprintf("repos/%s/%s/releases/%d/assets", owner, repo, id)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	stat, err := file.Stat()
+	if err != nil {
+		return nil, nil, err
+	}
+	if stat.IsDir() {
+		return nil, nil, errors.New("the asset to upload can't be a directory")
+	}
+
+	mediaType := mime.TypeByExtension(filepath.Ext(file.Name()))
+	req, err := s.client.NewUploadRequest(u, file, stat.Size(), mediaType)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	asset := new(ReleaseAsset)
+	resp, err := s.client.Do(ctx, req, asset)
+	if err != nil {
+		return nil, resp, err
+	}
+	return asset, resp, nil
+}
--- a/vendor/github.com/google/go-github/v28/github/repos_stats.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_stats.go
--- a/vendor/github.com/google/go-github/v28/github/repos_statuses.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_statuses.go
@@ -8,15 +8,13 @@ package github
 import (
 	"context"
 	"fmt"
-	"net/url"
 	"time"
 )

 // RepoStatus represents the status of a repository at a particular reference.
 type RepoStatus struct {
-	ID     *int64  `json:"id,omitempty"`
-	NodeID *string `json:"node_id,omitempty"`
-	URL    *string `json:"url,omitempty"`
+	ID  *int64  `json:"id,omitempty"`
+	URL *string `json:"url,omitempty"`

 	// State is the current state of the repository. Possible values are:
 	// pending, success, error, or failure.
@@ -46,7 +44,7 @@ func (r RepoStatus) String() string {
 //
 // GitHub API docs: https://developer.github.com/v3/repos/statuses/#list-statuses-for-a-specific-ref
 func (s *RepositoriesService) ListStatuses(ctx context.Context, owner, repo, ref string, opt *ListOptions) ([]*RepoStatus, *Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/commits/%v/statuses", owner, repo, url.QueryEscape(ref))
+	u := fmt.Sprintf("repos/%v/%v/commits/%v/statuses", owner, repo, ref)
 	u, err := addOptions(u, opt)
 	if err != nil {
 		return nil, nil, err
@@ -71,7 +69,7 @@ func (s *RepositoriesService) ListStatuses(ctx context.Context, owner, repo, ref
 //
 // GitHub API docs: https://developer.github.com/v3/repos/statuses/#create-a-status
 func (s *RepositoriesService) CreateStatus(ctx context.Context, owner, repo, ref string, status *RepoStatus) (*RepoStatus, *Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/statuses/%v", owner, repo, url.QueryEscape(ref))
+	u := fmt.Sprintf("repos/%v/%v/statuses/%v", owner, repo, ref)
 	req, err := s.client.NewRequest("POST", u, status)
 	if err != nil {
 		return nil, nil, err
@@ -110,7 +108,7 @@ func (s CombinedStatus) String() string {
 //
 // GitHub API docs: https://developer.github.com/v3/repos/statuses/#get-the-combined-status-for-a-specific-ref
 func (s *RepositoriesService) GetCombinedStatus(ctx context.Context, owner, repo, ref string, opt *ListOptions) (*CombinedStatus, *Response, error) {
-	u := fmt.Sprintf("repos/%v/%v/commits/%v/status", owner, repo, url.QueryEscape(ref))
+	u := fmt.Sprintf("repos/%v/%v/commits/%v/status", owner, repo, ref)
 	u, err := addOptions(u, opt)
 	if err != nil {
 		return nil, nil, err
--- a/vendor/github.com/google/go-github/v28/github/repos_traffic.go
+++ b/vendor/github.com/google/go-github/v28/github/repos_traffic.go
--- a/vendor/github.com/google/go-github/v28/github/search.go
+++ b/vendor/github.com/google/go-github/v28/github/search.go
@@ -8,7 +8,9 @@ package github
 import (
 	"context"
 	"fmt"
+	"net/url"
 	"strconv"
+	"strings"

 	qs "github.com/google/go-querystring/query"
 )
@@ -216,19 +218,20 @@ func (s *SearchService) Labels(ctx context.Context, repoID int64, query string,

 // Helper function that executes search queries against different
 // GitHub search types (repositories, commits, code, issues, users, labels)
-//
-// If searchParameters.Query includes multiple condition, it MUST NOT include "+" as condition separator.
-// For example, querying with "language:c++" and "leveldb", then searchParameters.Query should be "language:c++ leveldb" but not "language:c+++leveldb".
 func (s *SearchService) search(ctx context.Context, searchType string, parameters *searchParameters, opt *SearchOptions, result interface{}) (*Response, error) {
 	params, err := qs.Values(opt)
 	if err != nil {
 		return nil, err
 	}
+	q := strings.Replace(parameters.Query, " ", "+", -1)
 	if parameters.RepositoryID != nil {
 		params.Set("repository_id", strconv.FormatInt(*parameters.RepositoryID, 10))
 	}
-	params.Set("q", parameters.Query)
-	u := fmt.Sprintf("search/%s?%s", searchType, params.Encode())
+	query := "q=" + url.PathEscape(q)
+	if v := params.Encode(); v != "" {
+		query = query + "&" + v
+	}
+	u := fmt.Sprintf("search/%s?%s", searchType, query)

 	req, err := s.client.NewRequest("GET", u, nil)
 	if err != nil {
--- a/vendor/github.com/google/go-github/v28/github/strings.go
+++ b/vendor/github.com/google/go-github/v28/github/strings.go
--- a/Show More
+++ b/Show More