adds option to show pr titles in stack description

config/config.go

@@ -36,6 +36,8 @@ type RepoConfig struct {
 	MergeCheck string `yaml:"mergeCheck,omitempty"`
 
 	ForceFetchTags bool `default:"false" yaml:"forceFetchTags"`
+
+	ShowPrTitlesInStack bool `default:"false" yaml:"showPrTitlesInStack"`
 }
 
 type UserConfig struct {

config/config_test.go

@@ -33,6 +33,7 @@ func TestDefaultConfig(t *testing.T) {
 			PRTemplatePath:        "",
 			PRTemplateInsertStart: "",
 			PRTemplateInsertEnd:   "",
+			ShowPrTitlesInStack:   false,
 		},
 		User: &UserConfig{
 			ShowPRLink:       true,

github/githubclient/client.go

@@ -382,7 +382,7 @@ func (c *client) CreatePullRequest(ctx context.Context, gitcmd git.GitInterface,
 		Str("FromBranch", headRefName).Str("ToBranch", baseRefName).
 		Msg("CreatePullRequest")
 
-	body := formatBody(commit, info.PullRequests)
+	body := formatBody(commit, info.PullRequests, c.config.Repo.ShowPrTitlesInStack)
 	if c.config.Repo.PRTemplatePath != "" {
 		pullRequestTemplate, err := readPRTemplate(gitcmd, c.config.Repo.PRTemplatePath)
 		if err != nil {
@@ -425,7 +425,7 @@ func (c *client) CreatePullRequest(ctx context.Context, gitcmd git.GitInterface,
 	return pr
 }
 
-func formatStackMarkdown(commit git.Commit, stack []*github.PullRequest) string {
+func formatStackMarkdown(commit git.Commit, stack []*github.PullRequest, showPrTitlesInStack bool) string {
 	var buf bytes.Buffer
 	for i := len(stack) - 1; i >= 0; i-- {
 		isCurrent := stack[i].Commit == commit
@@ -435,25 +435,32 @@ func formatStackMarkdown(commit git.Commit, stack []*github.PullRequest) string
 		} else {
 			suffix = ""
 		}
-		buf.WriteString(fmt.Sprintf("- #%d%s\n", stack[i].Number, suffix))
+		var prTitle string
+		if showPrTitlesInStack {
+			prTitle = fmt.Sprintf("%s ", stack[i].Title)
+		} else {
+			prTitle = ""
+		}
+
+		buf.WriteString(fmt.Sprintf("- %s#%d%s\n", prTitle, stack[i].Number, suffix))
 	}
 
 	return buf.String()
 }
 
-func formatBody(commit git.Commit, stack []*github.PullRequest) string {
+func formatBody(commit git.Commit, stack []*github.PullRequest, showPrTitlesInStack bool) string {
 	if len(stack) <= 1 {
 		return strings.TrimSpace(commit.Body)
 	}
 
 	if commit.Body == "" {
 		return fmt.Sprintf("**Stack**:\n%s",
-			addManualMergeNotice(formatStackMarkdown(commit, stack)))
+			addManualMergeNotice(formatStackMarkdown(commit, stack, showPrTitlesInStack)))
 	}
 
 	return fmt.Sprintf("%s\n\n---\n\n**Stack**:\n%s",
 		commit.Body,
-		addManualMergeNotice(formatStackMarkdown(commit, stack)))
+		addManualMergeNotice(formatStackMarkdown(commit, stack, showPrTitlesInStack)))
 }
 
 // Reads the specified PR template file and returns it as a string
@@ -539,7 +546,7 @@ func (c *client) UpdatePullRequest(ctx context.Context, gitcmd git.GitInterface,
 		Str("FromBranch", pr.FromBranch).Str("ToBranch", baseRefName).
 		Interface("PR", pr).Msg("UpdatePullRequest")
 
-	body := formatBody(commit, pullRequests)
+	body := formatBody(commit, pullRequests, c.config.Repo.ShowPrTitlesInStack)
 	if c.config.Repo.PRTemplatePath != "" {
 		pullRequestTemplate, err := readPRTemplate(gitcmd, c.config.Repo.PRTemplatePath)
 		if err != nil {

github/githubclient/client_test.go

@@ -580,7 +580,64 @@ It even includes some **markdown** formatting.
 	}
 
 	for _, tc := range tests {
-		body := formatBody(tc.commit, tc.stack)
+		body := formatBody(tc.commit, tc.stack, false)
+		if body != tc.description {
+			t.Fatalf("expected: '%v', actual: '%v'", tc.description, body)
+		}
+	}
+}
+
+func TestFormatPullRequestBody_ShowPrTitle(t *testing.T) {
+	simpleCommit := git.Commit{
+		CommitID:   "abc123",
+		CommitHash: "abcdef123456",
+	}
+	descriptiveCommit := git.Commit{
+		CommitID:   "def456",
+		CommitHash: "ghijkl7890",
+		Body: `This body describes my nice PR.
+It even includes some **markdown** formatting.`}
+
+	tests := []struct {
+		description string
+		commit      git.Commit
+		stack       []*github.PullRequest
+	}{
+		{
+			description: "",
+			commit:      git.Commit{},
+			stack:       []*github.PullRequest{},
+		},
+		{
+			description: `This body describes my nice PR.
+It even includes some **markdown** formatting.`,
+			commit: descriptiveCommit,
+			stack: []*github.PullRequest{
+				{Number: 2, Commit: descriptiveCommit},
+			},
+		},
+		{
+			description: `This body describes my nice PR.
+It even includes some **markdown** formatting.
+
+---
+
+**Stack**:
+- Title B #2 ⬅
+- Title A #1
+
+
+⚠️ *Part of a stack created by [spr](https://github.com/ejoffe/spr). Do not merge manually using the UI - doing so may have unexpected results.*`,
+			commit: descriptiveCommit,
+			stack: []*github.PullRequest{
+				{Number: 1, Commit: simpleCommit, Title: "Title A"},
+				{Number: 2, Commit: descriptiveCommit, Title: "Title B"},
+			},
+		},
+	}
+
+	for _, tc := range tests {
+		body := formatBody(tc.commit, tc.stack, true)
 		if body != tc.description {
 			t.Fatalf("expected: '%v', actual: '%v'", tc.description, body)
 		}

readme.md

@@ -166,6 +166,7 @@ User specific configuration is saved to .spr.yml in the user home directory.
 | mergeCheck              | str  |            | enforce a pre-merge check using 'git spr check' |
 | forceFetchTags          | bool | false      | also fetch tags when running 'git spr update' |
 | branchNameIncludeTarget | bool | false      | include target branch name in pull request branch name |
+| showPrTitlesInStack     | bool | false      | show PR titles in stack description within pull request body |
 
 
 | User Config          | Type | Default | Description                                                     |