Update go-github library

vendor/github.com/google/go-github/github/pulls.go

@@ -9,6 +9,7 @@ import (
 	"bytes"
 	"context"
 	"fmt"
+	"strings"
 	"time"
 )
 
@@ -20,7 +21,7 @@ type PullRequestsService service
 
 // PullRequest represents a GitHub pull request on a repository.
 type PullRequest struct {
-	ID                  *int       `json:"id,omitempty"`
+	ID                  *int64     `json:"id,omitempty"`
 	Number              *int       `json:"number,omitempty"`
 	State               *string    `json:"state,omitempty"`
 	Title               *string    `json:"title,omitempty"`
@@ -29,9 +30,11 @@ type PullRequest struct {
 	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"`
@@ -45,21 +48,52 @@ type PullRequest struct {
 	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"`
+	// RequestedTeams is populated as part of the PullRequestEvent.
+	// See, https://developer.github.com/v3/activity/events/types/#pullrequestevent for an example.
+	RequestedTeams []*Team `json:"requested_teams,omitempty"`
+
+	Links *PRLinks           `json:"_links,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)
 }
 
+// PRLink represents a single link object from Github pull request _links.
+type PRLink struct {
+	HRef *string `json:"href,omitempty"`
+}
+
+// PRLinks represents the "_links" object in a Github pull request.
+type PRLinks struct {
+	Self           *PRLink `json:"self,omitempty"`
+	HTML           *PRLink `json:"html,omitempty"`
+	Issue          *PRLink `json:"issue,omitempty"`
+	Comments       *PRLink `json:"comments,omitempty"`
+	ReviewComments *PRLink `json:"review_comments,omitempty"`
+	ReviewComment  *PRLink `json:"review_comment,omitempty"`
+	Commits        *PRLink `json:"commits,omitempty"`
+	Statuses       *PRLink `json:"statuses,omitempty"`
+}
+
 // PullRequestBranch represents a base or head branch in a GitHub pull request.
 type PullRequestBranch struct {
 	Label *string     `json:"label,omitempty"`
@@ -73,7 +107,7 @@ type PullRequestBranch struct {
 // PullRequestsService.List method.
 type PullRequestListOptions struct {
 	// State filters pull requests based on their state. Possible values are:
-	// open, closed. Default is "open".
+	// open, closed, all. Default is "open".
 	State string `url:"state,omitempty"`
 
 	// Head filters pull requests by head user and branch name in the format of:
@@ -110,6 +144,10 @@ func (s *PullRequestsService) List(ctx context.Context, owner string, repo strin
 		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 {
@@ -129,6 +167,10 @@ func (s *PullRequestsService) Get(ctx context.Context, owner string, repo string
 		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 {
@@ -138,7 +180,7 @@ func (s *PullRequestsService) Get(ctx context.Context, owner string, repo string
 	return pull, resp, nil
 }
 
-// GetRaw gets raw (diff or patch) format of a pull request.
+// 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)
@@ -155,13 +197,13 @@ func (s *PullRequestsService) GetRaw(ctx context.Context, owner string, repo str
 		return "", nil, fmt.Errorf("unsupported raw type %d", opt.Type)
 	}
 
-	ret := new(bytes.Buffer)
-	resp, err := s.client.Do(ctx, req, ret)
+	var buf bytes.Buffer
+	resp, err := s.client.Do(ctx, req, &buf)
 	if err != nil {
 		return "", resp, err
 	}
 
-	return ret.String(), resp, nil
+	return buf.String(), resp, nil
 }
 
 // NewPullRequest represents a new pull request to be created.
@@ -184,6 +226,9 @@ func (s *PullRequestsService) Create(ctx context.Context, owner string, repo str
 		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 {
@@ -230,6 +275,10 @@ func (s *PullRequestsService) Edit(ctx context.Context, owner string, repo strin
 		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 {