delete stack locally

Author: skarim

cmd/root.go

@@ -28,6 +28,7 @@ func RootCmd() *cobra.Command {
 	// Remote operations
 	root.AddCommand(CheckoutCmd(cfg))
 	root.AddCommand(PushCmd(cfg))
+	root.AddCommand(UnstackCmd(cfg))
 	root.AddCommand(MergeCmd(cfg))
 
 	// Helper commands

cmd/unstack.go

@@ -0,0 +1,89 @@
+package cmd
+
+import (
+	"github.com/github/gh-stack/internal/config"
+	"github.com/github/gh-stack/internal/git"
+	"github.com/github/gh-stack/internal/stack"
+	"github.com/spf13/cobra"
+)
+
+type unstackOptions struct {
+	target string
+	local  bool
+}
+
+func UnstackCmd(cfg *config.Config) *cobra.Command {
+	opts := &unstackOptions{}
+
+	cmd := &cobra.Command{
+		Use:   "unstack [branch]",
+		Short: "Delete a stack locally and on GitHub",
+		Long:  "Remove a stack from local tracking and delete it on GitHub. Use --local to only remove local tracking.",
+		Args:  cobra.MaximumNArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if len(args) > 0 {
+				opts.target = args[0]
+			}
+			return runUnstack(cfg, opts)
+		},
+	}
+
+	cmd.Flags().BoolVar(&opts.local, "local", false, "Only delete the stack locally")
+
+	return cmd
+}
+
+func runUnstack(cfg *config.Config, opts *unstackOptions) error {
+	gitDir, err := git.GitDir()
+	if err != nil {
+		cfg.Errorf("not a git repository")
+		return nil
+	}
+
+	sf, err := stack.Load(gitDir)
+	if err != nil {
+		cfg.Errorf("failed to load stack state: %s", err)
+		return nil
+	}
+
+	target := opts.target
+	if target == "" {
+		target, err = git.CurrentBranch()
+		if err != nil {
+			cfg.Errorf("unable to determine current branch: %s", err)
+			return nil
+		}
+	}
+
+	s := sf.FindStackForBranch(target)
+	if s == nil {
+		cfg.Errorf("branch %q is not part of a stack", target)
+		return nil
+	}
+
+	cfg.Printf("Stack branches: %v", s.BranchNames())
+
+	// Remove from local tracking
+	sf.RemoveStackForBranch(target)
+	if err := stack.Save(gitDir, sf); err != nil {
+		cfg.Errorf("failed to save stack state: %s", err)
+		return nil
+	}
+	cfg.Successf("Stack removed from local tracking")
+
+	// Delete the stack on GitHub
+	if !opts.local {
+		client, err := cfg.GitHubClient()
+		if err != nil {
+			cfg.Errorf("failed to create GitHub client: %s", err)
+			return nil
+		}
+		if err := client.DeleteStack(); err != nil {
+			cfg.Warningf("%v", err)
+		} else {
+			cfg.Successf("Stack deleted on GitHub")
+		}
+	}
+
+	return nil
+}

internal/github/github.go

@@ -169,6 +169,12 @@ func (c *Client) UpdatePRBase(prID, newBase string) error {
 	return c.gql.Mutate("UpdatePullRequest", &mutation, variables)
 }
 
+// DeleteStack deletes a stack on GitHub.
+// TODO: Implement once the stack API is available.
+func (c *Client) DeleteStack() error {
+	return fmt.Errorf("deleting a stack on GitHub is not yet supported by the API")
+}
+
 func (c *Client) repositoryID() (string, error) {
 	var query struct {
 		Repository struct {