Don't comment back on autoplan no projects.

CHANGELOG.md

@@ -1,3 +1,24 @@
+# v0.4.2
+
+## Features
+* Don't comment on pull request if autoplan determines there are no projects to plan in.
+This was getting very noisy for users who use their repos for more than just Terraform ([#183](https://github.com/runatlantis/atlantis/issues/183)).
+
+## Bugfixes
+None
+
+## Backwards Incompatibilities / Notes:
+None
+
+## Downloads
+* [atlantis_darwin_amd64.zip](https://github.com/runatlantis/atlantis/releases/download/v0.4.2/atlantis_darwin_amd64.zip)
+* [atlantis_linux_386.zip](https://github.com/runatlantis/atlantis/releases/download/v0.4.2/atlantis_linux_386.zip)
+* [atlantis_linux_amd64.zip](https://github.com/runatlantis/atlantis/releases/download/v0.4.2/atlantis_linux_amd64.zip)
+* [atlantis_linux_arm.zip](https://github.com/runatlantis/atlantis/releases/download/v0.4.2/atlantis_linux_arm.zip)
+
+## Docker
+`runatlantis/atlantis:v0.4.2`
+
 # v0.4.1
 
 ## Features

server/events/command_runner.go

@@ -93,6 +93,13 @@ func (c *DefaultCommandRunner) RunAutoplanCommand(baseRepo models.Repo, headRepo
 		c.updatePull(ctx, AutoplanCommand{}, CommandResult{Error: err})
 		return
 	}
+	if len(projectCmds) == 0 {
+		log.Info("determined there was no project to run plan in")
+		if err := c.CommitStatusUpdater.Update(baseRepo, pull, vcs.Success, Plan); err != nil {
+			ctx.Log.Warn("unable to update commit status: %s", err)
+		}
+		return
+	}
 
 	var results []ProjectResult
 	for _, cmd := range projectCmds {

server/events/markdown_renderer.go

@@ -67,9 +67,6 @@ func (m *MarkdownRenderer) Render(res CommandResult, cmdName CommandName, log st
 	if res.Failure != "" {
 		return m.renderTemplate(failureWithLogTmpl, FailureData{res.Failure, common})
 	}
-	if len(res.ProjectResults) == 0 && autoplan {
-		return m.renderTemplate(autoplanNoProjectsWithLogTmpl, common)
-	}
 	return m.renderProjectResults(res.ProjectResults, common)
 }
 
@@ -148,11 +145,9 @@ var errTmplText = "**{{.Command}} Error**\n" +
 	"```\n" +
 	"{{.Error}}\n" +
 	"```\n"
-var autoplanNoProjectsTmplText = "Ran `plan` in 0 projects because Atlantis detected no Terraform changes or could not determine where to run `plan`.\n"
 var errTmpl = template.Must(template.New("").Parse(errTmplText))
 var errWithLogTmpl = template.Must(template.New("").Parse(errTmplText + logTmpl))
 var failureTmplText = "**{{.Command}} Failed**: {{.Failure}}\n"
 var failureTmpl = template.Must(template.New("").Parse(failureTmplText))
 var failureWithLogTmpl = template.Must(template.New("").Parse(failureTmplText + logTmpl))
-var autoplanNoProjectsWithLogTmpl = template.Must(template.New("").Parse(autoplanNoProjectsTmplText + logTmpl))
 var logTmpl = "{{if .Verbose}}\n<details><summary>Log</summary>\n  <p>\n\n```\n{{.Log}}```\n</p></details>{{end}}\n"

server/events/markdown_renderer_test.go

@@ -113,15 +113,6 @@ func TestRenderErrAndFailure(t *testing.T) {
 	Equals(t, "**Plan Error**\n```\nerror\n```\n\n", s)
 }
 
-func TestRenderAutoplanNoResults(t *testing.T) {
-	// If there are no project results during an autoplan we should still comment
-	// back because the user might expect some output.
-	r := events.MarkdownRenderer{}
-	res := events.CommandResult{}
-	s := r.Render(res, events.Plan, "", false, true)
-	Equals(t, "Ran `plan` in 0 projects because Atlantis detected no Terraform changes or could not determine where to run `plan`.\n\n", s)
-}
-
 func TestRenderProjectResults(t *testing.T) {
 	cases := []struct {
 		Description    string
@@ -129,6 +120,12 @@ func TestRenderProjectResults(t *testing.T) {
 		ProjectResults []events.ProjectResult
 		Expected       string
 	}{
+		{
+			"no projects",
+			events.Plan,
+			[]events.ProjectResult{},
+			"Ran Plan for 0 projects:\n\n\n",
+		},
 		{
 			"single successful plan",
 			events.Plan,

server/events_controller_e2e_test.go

@@ -35,8 +35,6 @@ func TestGitHubWorkflow(t *testing.T) {
 	if testing.Short() {
 		t.SkipNow()
 	}
-	RegisterMockTestingT(t)
-
 	cases := []struct {
 		Description string
 		// RepoDir is relative to testfixtures/test-repos.
@@ -105,7 +103,7 @@ func TestGitHubWorkflow(t *testing.T) {
 			Description:            "modules modules only",
 			RepoDir:                "modules",
 			ModifiedFiles:          []string{"modules/null/main.tf"},
-			ExpAutoplanCommentFile: "exp-output-autoplan-only-modules.txt",
+			ExpAutoplanCommentFile: "",
 			CommentAndReplies: []string{
 				"atlantis plan -d staging", "exp-output-plan-staging.txt",
 				"atlantis plan -d production", "exp-output-plan-production.txt",
@@ -152,6 +150,8 @@ func TestGitHubWorkflow(t *testing.T) {
 	}
 	for _, c := range cases {
 		t.Run(c.Description, func(t *testing.T) {
+			RegisterMockTestingT(t)
+
 			ctrl, vcsClient, githubGetter, atlantisWorkspace := setupE2E(t)
 			// Set the repo to be cloned through the testing backdoor.
 			repoDir, headSHA, cleanup := initializeRepo(t, c.RepoDir)
@@ -162,12 +162,14 @@ func TestGitHubWorkflow(t *testing.T) {
 			w := httptest.NewRecorder()
 			When(githubGetter.GetPullRequest(AnyRepo(), AnyInt())).ThenReturn(GitHubPullRequestParsed(headSHA), nil)
 			When(vcsClient.GetModifiedFiles(AnyRepo(), matchers.AnyModelsPullRequest())).ThenReturn(c.ModifiedFiles, nil)
+			expNumTimesCalledCreateComment := 0
 
 			// First, send the open pull request event and trigger an autoplan.
 			pullOpenedReq := GitHubPullRequestOpenedEvent(t, headSHA)
 			ctrl.Post(w, pullOpenedReq)
 			responseContains(t, w, 200, "Processing...")
 			if c.ExpAutoplanCommentFile != "" {
+				expNumTimesCalledCreateComment++
 				_, _, autoplanComment := vcsClient.VerifyWasCalledOnce().CreateComment(AnyRepo(), AnyInt(), AnyString()).GetCapturedArguments()
 				assertCommentEquals(t, c.ExpAutoplanCommentFile, autoplanComment, c.RepoDir)
 			}
@@ -181,7 +183,12 @@ func TestGitHubWorkflow(t *testing.T) {
 				w = httptest.NewRecorder()
 				ctrl.Post(w, commentReq)
 				responseContains(t, w, 200, "Processing...")
-				_, _, atlantisComment := vcsClient.VerifyWasCalled(Times((i/2)+2)).CreateComment(AnyRepo(), AnyInt(), AnyString()).GetCapturedArguments()
+				// Each comment warrants a response. The comments are at the
+				// even indices.
+				if i%2 == 0 {
+					expNumTimesCalledCreateComment++
+				}
+				_, _, atlantisComment := vcsClient.VerifyWasCalled(Times(expNumTimesCalledCreateComment)).CreateComment(AnyRepo(), AnyInt(), AnyString()).GetCapturedArguments()
 				assertCommentEquals(t, expOutputFile, atlantisComment, c.RepoDir)
 			}
 
@@ -190,8 +197,8 @@ func TestGitHubWorkflow(t *testing.T) {
 			w = httptest.NewRecorder()
 			ctrl.Post(w, pullClosedReq)
 			responseContains(t, w, 200, "Pull request cleaned successfully")
-			numPrevComments := (len(c.CommentAndReplies) / 2) + 1
-			_, _, pullClosedComment := vcsClient.VerifyWasCalled(Times(numPrevComments+1)).CreateComment(AnyRepo(), AnyInt(), AnyString()).GetCapturedArguments()
+			expNumTimesCalledCreateComment++
+			_, _, pullClosedComment := vcsClient.VerifyWasCalled(Times(expNumTimesCalledCreateComment)).CreateComment(AnyRepo(), AnyInt(), AnyString()).GetCapturedArguments()
 			assertCommentEquals(t, c.ExpMergeCommentFile, pullClosedComment, c.RepoDir)
 		})
 	}

server/testfixtures/test-repos/modules/exp-output-autoplan-only-modules.txt

@@ -1,2 +0,0 @@
-Ran `plan` in 0 projects because Atlantis detected no Terraform changes or could not determine where to run `plan`.
-