|
| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "errors" |
| 5 | + "fmt" |
| 6 | + "os" |
| 7 | + "path/filepath" |
| 8 | + |
| 9 | + "github.com/go-git/go-billy/v6/memfs" |
| 10 | + "github.com/go-git/go-billy/v6/osfs" |
| 11 | + "github.com/go-git/go-git/v6" |
| 12 | + "github.com/go-git/go-git/v6/plumbing" |
| 13 | + "github.com/go-git/go-git/v6/x/plumbing/worktree" |
| 14 | + xstorage "github.com/go-git/go-git/v6/x/storage" |
| 15 | + "github.com/spf13/cobra" |
| 16 | +) |
| 17 | + |
| 18 | +var ( |
| 19 | + worktreeAddCommit string |
| 20 | + worktreeAddDetach bool |
| 21 | +) |
| 22 | + |
| 23 | +func init() { |
| 24 | + worktreeAddCmd.Flags().StringVarP(&worktreeAddCommit, "commit", "c", "", "Commit hash to checkout in the new worktree") |
| 25 | + worktreeAddCmd.Flags().BoolVarP(&worktreeAddDetach, "detach", "d", false, "Create a detached HEAD worktree") |
| 26 | + worktreeCmd.AddCommand(worktreeAddCmd) |
| 27 | + worktreeCmd.AddCommand(worktreeListCmd) |
| 28 | + worktreeCmd.AddCommand(worktreeRemoveCmd) |
| 29 | + rootCmd.AddCommand(worktreeCmd) |
| 30 | +} |
| 31 | + |
| 32 | +var worktreeCmd = &cobra.Command{ |
| 33 | + Use: "worktree <command>", |
| 34 | + Short: "Manage repository worktrees", |
| 35 | + RunE: func(cmd *cobra.Command, _ []string) error { |
| 36 | + return cmd.Usage() |
| 37 | + }, |
| 38 | + DisableFlagsInUseLine: true, |
| 39 | +} |
| 40 | + |
| 41 | +var worktreeAddCmd = &cobra.Command{ |
| 42 | + Use: "add <path>", |
| 43 | + Short: "Add a new linked worktree", |
| 44 | + Args: cobra.ExactArgs(1), |
| 45 | + RunE: func(cmd *cobra.Command, args []string) error { |
| 46 | + path := args[0] |
| 47 | + name := filepath.Base(path) |
| 48 | + |
| 49 | + r, err := git.PlainOpen(".") |
| 50 | + if err != nil { |
| 51 | + return fmt.Errorf("failed to open repository: %w", err) |
| 52 | + } |
| 53 | + |
| 54 | + w, err := worktree.New(r.Storer) |
| 55 | + if err != nil { |
| 56 | + return fmt.Errorf("failed to create worktree manager: %w", err) |
| 57 | + } |
| 58 | + |
| 59 | + wt := osfs.New(path) |
| 60 | + |
| 61 | + var opts []worktree.Option |
| 62 | + if worktreeAddDetach { |
| 63 | + opts = append(opts, worktree.WithDetachedHead()) |
| 64 | + } |
| 65 | + if worktreeAddCommit != "" { |
| 66 | + hash := plumbing.NewHash(worktreeAddCommit) |
| 67 | + if !hash.IsZero() { |
| 68 | + opts = append(opts, worktree.WithCommit(hash)) |
| 69 | + } |
| 70 | + } |
| 71 | + |
| 72 | + err = w.Add(wt, name, opts...) |
| 73 | + if err != nil { |
| 74 | + return fmt.Errorf("failed to add worktree: %w", err) |
| 75 | + } |
| 76 | + |
| 77 | + fmt.Fprintf(cmd.OutOrStdout(), "Worktree '%s' created at '%s'\n", name, path) |
| 78 | + |
| 79 | + return nil |
| 80 | + }, |
| 81 | + DisableFlagsInUseLine: true, |
| 82 | +} |
| 83 | + |
| 84 | +var worktreeListCmd = &cobra.Command{ |
| 85 | + Use: "list", |
| 86 | + Short: "List all linked worktrees", |
| 87 | + Args: cobra.NoArgs, |
| 88 | + RunE: func(cmd *cobra.Command, _ []string) error { |
| 89 | + r, err := git.PlainOpen(".") |
| 90 | + if err != nil { |
| 91 | + return fmt.Errorf("failed to open repository: %w", err) |
| 92 | + } |
| 93 | + |
| 94 | + w, err := worktree.New(r.Storer) |
| 95 | + if err != nil { |
| 96 | + return fmt.Errorf("failed to create worktree manager: %w", err) |
| 97 | + } |
| 98 | + |
| 99 | + cwd, err := os.Getwd() |
| 100 | + if err != nil { |
| 101 | + return fmt.Errorf("failed to get current directory: %w", err) |
| 102 | + } |
| 103 | + |
| 104 | + ref, err := r.Head() |
| 105 | + if err != nil { |
| 106 | + return fmt.Errorf("failed to get HEAD: %w", err) |
| 107 | + } |
| 108 | + |
| 109 | + fmt.Fprintf(cmd.OutOrStdout(), "%-30s %s %s\n", cwd, ref.Hash().String()[:7], refName(ref)) |
| 110 | + |
| 111 | + worktrees, err := w.List() |
| 112 | + if err != nil { |
| 113 | + return fmt.Errorf("failed to list worktrees: %w", err) |
| 114 | + } |
| 115 | + |
| 116 | + wts, ok := r.Storer.(xstorage.WorktreeStorer) |
| 117 | + if !ok { |
| 118 | + return errors.New("storer does not implement WorktreeStorer") |
| 119 | + } |
| 120 | + |
| 121 | + commonDir := wts.Filesystem() |
| 122 | + for _, name := range worktrees { |
| 123 | + gitdirPath := filepath.Join(commonDir.Root(), "worktrees", name, "gitdir") |
| 124 | + gitdirData, err := os.ReadFile(gitdirPath) |
| 125 | + if err != nil || len(gitdirData) == 0 { |
| 126 | + continue |
| 127 | + } |
| 128 | + |
| 129 | + wtPath := filepath.Dir(string(gitdirData[:len(gitdirData)-1])) |
| 130 | + wt := memfs.New() |
| 131 | + err = w.Init(wt, name) |
| 132 | + if err != nil { |
| 133 | + continue |
| 134 | + } |
| 135 | + |
| 136 | + wtRepo, err := w.Open(wt) |
| 137 | + if err != nil { |
| 138 | + continue |
| 139 | + } |
| 140 | + |
| 141 | + wtRef, err := wtRepo.Head() |
| 142 | + if err != nil { |
| 143 | + return fmt.Errorf("failed to get HEAD: %w", err) |
| 144 | + } |
| 145 | + |
| 146 | + fmt.Fprintf(cmd.OutOrStdout(), "%-30s %s %s\n", wtPath, wtRef.Hash().String()[:7], refName(wtRef)) |
| 147 | + } |
| 148 | + |
| 149 | + return nil |
| 150 | + }, |
| 151 | + DisableFlagsInUseLine: true, |
| 152 | +} |
| 153 | + |
| 154 | +func refName(ref *plumbing.Reference) string { |
| 155 | + name := ref.Name() |
| 156 | + if name.IsBranch() { |
| 157 | + return fmt.Sprintf("[%s]", name.Short()) |
| 158 | + } |
| 159 | + |
| 160 | + return fmt.Sprintf("(detached %s)", string(ref.Name())) |
| 161 | +} |
| 162 | + |
| 163 | +var worktreeRemoveCmd = &cobra.Command{ |
| 164 | + Use: "remove <name>", |
| 165 | + Short: "Remove a linked worktree", |
| 166 | + Args: cobra.ExactArgs(1), |
| 167 | + RunE: func(cmd *cobra.Command, args []string) error { |
| 168 | + name := args[0] |
| 169 | + |
| 170 | + r, err := git.PlainOpen(".") |
| 171 | + if err != nil { |
| 172 | + return fmt.Errorf("failed to open repository: %w", err) |
| 173 | + } |
| 174 | + |
| 175 | + wt, err := worktree.New(r.Storer) |
| 176 | + if err != nil { |
| 177 | + return fmt.Errorf("failed to create worktree manager: %w", err) |
| 178 | + } |
| 179 | + |
| 180 | + err = wt.Remove(name) |
| 181 | + if err != nil { |
| 182 | + return fmt.Errorf("failed to remove worktree: %w", err) |
| 183 | + } |
| 184 | + |
| 185 | + fmt.Fprintf(cmd.OutOrStdout(), "Worktree '%s' removed\n", name) |
| 186 | + |
| 187 | + return nil |
| 188 | + }, |
| 189 | + DisableFlagsInUseLine: true, |
| 190 | +} |
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