add delete HTTP request and confirmation prompting

pkg/cmd/repo/delete/delete.go

@@ -1,10 +1,18 @@
 package delete
 
 import (
+	"errors"
+	"fmt"
 	"net/http"
+	"strings"
 
+	"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/cmdutil"
+	"github.com/cli/cli/v2/pkg/prompt"
 
+	"github.com/AlecAivazis/survey/v2"
 	"github.com/cli/cli/v2/pkg/iostreams"
 	"github.com/spf13/cobra"
 )
@@ -27,7 +35,8 @@ func NewCmdDelete(f *cmdutil.Factory, runF func(*DeleteOptions) error) *cobra.Co
 		Short: "Delete a repository",
 		Long: `Delete a GitHub repository.
 
-		Ensure that you have authorized the \"delete_repo\" scope:  gh auth refresh -h github.com -s delete_repo"`,
+Deletion requires authorization with the "delete_repo" scope. 
+To authorize, run "gh auth refresh -h github.com -s delete_repo"`,
 		Args: cmdutil.ExactArgs(1, "cannot delete: repository argument required"),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			opts.RepoArg = args[0]
@@ -38,11 +47,68 @@ func NewCmdDelete(f *cmdutil.Factory, runF func(*DeleteOptions) error) *cobra.Co
 		},
 	}
 
-	cmd.Flags().BoolVar(&opts.Confirmed, "yes", false, "Confirm deletion without prompting")
+	cmd.Flags().BoolVar(&opts.Confirmed, "yes", false, "confirm deletion without prompting")
 	return cmd
 }
 
 func deleteRun(opts *DeleteOptions) error {
+	httpClient, err := opts.HttpClient()
+	if err != nil {
+		return err
+	}
+	apiClient := api.NewClientFromHTTP(httpClient)
+
+	deleteURL := opts.RepoArg
+	var toDelete ghrepo.Interface
+
+	if !strings.Contains(deleteURL, "/") {
+		currentUser, err := api.CurrentLoginName(apiClient, ghinstance.Default())
+		if err != nil {
+			return err
+		}
+		deleteURL = currentUser + "/" + deleteURL
+	}
+	toDelete, err = ghrepo.FromFullName(deleteURL)
+	if err != nil {
+		return fmt.Errorf("argument error: %w", err)
+	}
+
+	fullName := ghrepo.FullName(toDelete)
+
+	doPrompt := opts.IO.CanPrompt()
+	if !opts.Confirmed && !doPrompt {
+		return errors.New("could not prompt: confirmation with prompt or --yes flag required")
+	}
+
+	if !opts.Confirmed && doPrompt {
+		var valid string
+		err := prompt.SurveyAskOne(
+			&survey.Input{Message: fmt.Sprintf("Type %s to confirm deletion:", fullName)},
+			&valid,
+			survey.WithValidator(
+				func(val interface{}) error {
+					if str := val.(string); str != fullName {
+						return fmt.Errorf("You entered %s", str)
+					}
+					return nil
+				}))
+		if err != nil {
+			return fmt.Errorf("could not prompt: %w", err)
+		}
+	}
+
+	err = deleteRepo(httpClient, toDelete)
+	if err != nil {
+		return fmt.Errorf("API call failed: %w", err)
+	}
+
+	if opts.IO.IsStdoutTTY() {
+		cs := opts.IO.ColorScheme()
+		fmt.Fprintf(opts.IO.Out,
+			"%s Deleted repository %s\n",
+			cs.SuccessIcon(),
+			fullName)
+	}
 
 	return nil
 }

pkg/cmd/repo/delete/http.go

@@ -1,9 +1,39 @@
 package delete
 
 import (
+	"fmt"
 	"net/http"
+
+	"github.com/cli/cli/v2/api"
+	"github.com/cli/cli/v2/internal/ghinstance"
+	"github.com/cli/cli/v2/internal/ghrepo"
 )
 
-func deleteRepo(client *http.Client) error {
+func deleteRepo(client *http.Client, repo ghrepo.Interface) error {
+	url := fmt.Sprintf("%srepos/%s",
+		ghinstance.RESTPrefix(repo.RepoHost()),
+		ghrepo.FullName(repo))
 
+	request, err := http.NewRequest("DELETE", url, nil)
+	request.Header.Set("Accept", "application/vnd.github.v3+json")
+	if err != nil {
+		return err
+	}
+
+	resp, err := client.Do(request)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	err = api.HandleHTTPError(resp)
+	if resp.StatusCode == 403 {
+		return fmt.Errorf(`%w
+
+Deletion requires authorization with the "delete_repo" scope. To authorize, run "gh auth refresh -s delete_repo"`, err)
+	} else if resp.StatusCode > 204 {
+		return err
+	}
+
+	return nil
 }

pkg/cmd/repo/repo.go

@@ -5,6 +5,7 @@ import (
 	repoCloneCmd "github.com/cli/cli/v2/pkg/cmd/repo/clone"
 	repoCreateCmd "github.com/cli/cli/v2/pkg/cmd/repo/create"
 	creditsCmd "github.com/cli/cli/v2/pkg/cmd/repo/credits"
+	repoDeleteCmd "github.com/cli/cli/v2/pkg/cmd/repo/delete"
 	repoForkCmd "github.com/cli/cli/v2/pkg/cmd/repo/fork"
 	gardenCmd "github.com/cli/cli/v2/pkg/cmd/repo/garden"
 	repoListCmd "github.com/cli/cli/v2/pkg/cmd/repo/list"
@@ -42,6 +43,7 @@ func NewCmdRepo(f *cmdutil.Factory) *cobra.Command {
 	cmd.AddCommand(repoSyncCmd.NewCmdSync(f, nil))
 	cmd.AddCommand(creditsCmd.NewCmdRepoCredits(f, nil))
 	cmd.AddCommand(gardenCmd.NewCmdGarden(f, nil))
+	cmd.AddCommand(repoDeleteCmd.NewCmdDelete(f, nil))
 
 	return cmd
 }