feat(cmd/release): allow to delete release with its attached tag

pkg/cmd/release/delete/delete.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/AlecAivazis/survey/v2"
 	"github.com/cli/cli/v2/api"
+	"github.com/cli/cli/v2/internal/ghinstance"
 	"github.com/cli/cli/v2/internal/ghrepo"
 	"github.com/cli/cli/v2/pkg/cmd/release/shared"
 	"github.com/cli/cli/v2/pkg/cmdutil"
@@ -21,6 +22,7 @@ type DeleteOptions struct {
 
 	TagName     string
 	SkipConfirm bool
+	CleanupTag  bool
 }
 
 func NewCmdDelete(f *cmdutil.Factory, runF func(*DeleteOptions) error) *cobra.Command {
@@ -47,6 +49,7 @@ func NewCmdDelete(f *cmdutil.Factory, runF func(*DeleteOptions) error) *cobra.Co
 	}
 
 	cmd.Flags().BoolVarP(&opts.SkipConfirm, "yes", "y", false, "Skip the confirmation prompt")
+	cmd.Flags().BoolVar(&opts.CleanupTag, "cleanup-tag", false, "Delete the tag attached to the release")
 
 	return cmd
 }
@@ -88,13 +91,23 @@ func deleteRun(opts *DeleteOptions) error {
 		return err
 	}
 
+	var cleanupMessage string
+	mustCleanupTag := opts.CleanupTag
+	if mustCleanupTag {
+		err = deleteTag(httpClient, baseRepo, release.TagName)
+		if err != nil {
+			return err
+		}
+		cleanupMessage = " and cleanup the tag"
+	}
+	
 	if !opts.IO.IsStdoutTTY() || !opts.IO.IsStderrTTY() {
 		return nil
 	}
 
 	iofmt := opts.IO.ColorScheme()
-	fmt.Fprintf(opts.IO.ErrOut, "%s Deleted release %s\n", iofmt.SuccessIconWithColor(iofmt.Red), release.TagName)
-	if !release.IsDraft {
+	fmt.Fprintf(opts.IO.ErrOut, "%s Deleted release %s%s\n", iofmt.SuccessIconWithColor(iofmt.Red), release.TagName, cleanupMessage)
+	if !release.IsDraft && !mustCleanupTag {
 		fmt.Fprintf(opts.IO.ErrOut, "%s Note that the %s git tag still remains in the repository\n", iofmt.WarningIcon(), release.TagName)
 	}
 
@@ -118,3 +131,25 @@ func deleteRelease(httpClient *http.Client, releaseURL string) error {
 	}
 	return nil
 }
+
+func deleteTag(httpClient *http.Client, baseRepo ghrepo.Interface, tagName string) error {
+	path := fmt.Sprintf("repos/%s/%s/git/refs/tags/%s", baseRepo.RepoOwner(), baseRepo.RepoName(), tagName)
+	url := ghinstance.RESTPrefix(baseRepo.RepoHost()) + path
+	
+	req, err := http.NewRequest("DELETE", url, nil)
+	if err != nil {
+		return err
+	}
+
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode > 299 {
+		return api.HandleHTTPError(resp)
+	}
+	return nil
+}
+

pkg/cmd/release/delete/delete_test.go

@@ -31,6 +31,7 @@ func Test_NewCmdDelete(t *testing.T) {
 			want: DeleteOptions{
 				TagName:     "v1.2.3",
 				SkipConfirm: false,
+				CleanupTag: false,
 			},
 		},
 		{
@@ -40,6 +41,17 @@ func Test_NewCmdDelete(t *testing.T) {
 			want: DeleteOptions{
 				TagName:     "v1.2.3",
 				SkipConfirm: true,
+				CleanupTag: false,
+			},
+		},
+		{
+			name:  "cleanup tag",
+			args:  "v1.2.3 --cleanup-tag",
+			isTTY: true,
+			want: DeleteOptions{
+				TagName:     "v1.2.3",
+				SkipConfirm: false,
+				CleanupTag: true,
 			},
 		},
 		{
@@ -83,8 +95,10 @@ func Test_NewCmdDelete(t *testing.T) {
 				require.NoError(t, err)
 			}
 
+
 			assert.Equal(t, tt.want.TagName, opts.TagName)
 			assert.Equal(t, tt.want.SkipConfirm, opts.SkipConfirm)
+			assert.Equal(t, tt.want.CleanupTag, opts.CleanupTag)
 		})
 	}
 }
@@ -104,6 +118,7 @@ func Test_deleteRun(t *testing.T) {
 			opts: DeleteOptions{
 				TagName:     "v1.2.3",
 				SkipConfirm: true,
+				CleanupTag: false,
 			},
 			wantStdout: ``,
 			wantStderr: heredoc.Doc(`
@@ -117,6 +132,31 @@ func Test_deleteRun(t *testing.T) {
 			opts: DeleteOptions{
 				TagName:     "v1.2.3",
 				SkipConfirm: false,
+				CleanupTag: false,
+			},
+			wantStdout: ``,
+			wantStderr: ``,
+		},
+		{
+			name:  "cleanup-tag & skipping confirmation",
+			isTTY: true,
+			opts: DeleteOptions{
+				TagName:     "v1.2.3",
+				SkipConfirm: true,
+				CleanupTag: true,
+			},
+			wantStdout: ``,
+			wantStderr: heredoc.Doc(`
+				✓ Deleted release v1.2.3 and cleanup the tag
+			`),
+		},
+		{
+			name:  "cleanup-tag",
+			isTTY: false,
+			opts: DeleteOptions{
+				TagName:     "v1.2.3",
+				SkipConfirm: false,
+				CleanupTag: true,
 			},
 			wantStdout: ``,
 			wantStderr: ``,
@@ -135,7 +175,10 @@ func Test_deleteRun(t *testing.T) {
 				"draft": false,
 				"url": "https://api.github.com/repos/OWNER/REPO/releases/23456"
 			}`))
+
 			fakeHTTP.Register(httpmock.REST("DELETE", "repos/OWNER/REPO/releases/23456"), httpmock.StatusStringResponse(204, ""))
+			fakeHTTP.Register(httpmock.REST("DELETE", "repos/OWNER/REPO/git/refs/tags/v1.2.3"), httpmock.StatusStringResponse(204, ""))
+
 
 			tt.opts.IO = ios
 			tt.opts.HttpClient = func() (*http.Client, error) {