Andrew's git / gitweb.git / builtin/worktree.c
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builtin / worktree.con commit worktree: improve message when creating a new worktree (2c27002)
   1#include "cache.h"
   2#include "checkout.h"
   3#include "config.h"
   4#include "builtin.h"
   5#include "dir.h"
   6#include "parse-options.h"
   7#include "argv-array.h"
   8#include "branch.h"
   9#include "refs.h"
  10#include "run-command.h"
  11#include "sigchain.h"
  12#include "refs.h"
  13#include "utf8.h"
  14#include "worktree.h"
  15
  16static const char * const worktree_usage[] = {
  17        N_("git worktree add [<options>] <path> [<branch>]"),
  18        N_("git worktree list [<options>]"),
  19        N_("git worktree lock [<options>] <path>"),
  20        N_("git worktree prune [<options>]"),
  21        N_("git worktree unlock <path>"),
  22        NULL
  23};
  24
  25struct add_opts {
  26        int force;
  27        int detach;
  28        int checkout;
  29        int keep_locked;
  30};
  31
  32static int show_only;
  33static int verbose;
  34static int guess_remote;
  35static timestamp_t expire;
  36
  37static int git_worktree_config(const char *var, const char *value, void *cb)
  38{
  39        if (!strcmp(var, "worktree.guessremote")) {
  40                guess_remote = git_config_bool(var, value);
  41                return 0;
  42        }
  43
  44        return git_default_config(var, value, cb);
  45}
  46
  47static int prune_worktree(const char *id, struct strbuf *reason)
  48{
  49        struct stat st;
  50        char *path;
  51        int fd;
  52        size_t len;
  53        ssize_t read_result;
  54
  55        if (!is_directory(git_path("worktrees/%s", id))) {
  56                strbuf_addf(reason, _("Removing worktrees/%s: not a valid directory"), id);
  57                return 1;
  58        }
  59        if (file_exists(git_path("worktrees/%s/locked", id)))
  60                return 0;
  61        if (stat(git_path("worktrees/%s/gitdir", id), &st)) {
  62                strbuf_addf(reason, _("Removing worktrees/%s: gitdir file does not exist"), id);
  63                return 1;
  64        }
  65        fd = open(git_path("worktrees/%s/gitdir", id), O_RDONLY);
  66        if (fd < 0) {
  67                strbuf_addf(reason, _("Removing worktrees/%s: unable to read gitdir file (%s)"),
  68                            id, strerror(errno));
  69                return 1;
  70        }
  71        len = xsize_t(st.st_size);
  72        path = xmallocz(len);
  73
  74        read_result = read_in_full(fd, path, len);
  75        if (read_result < 0) {
  76                strbuf_addf(reason, _("Removing worktrees/%s: unable to read gitdir file (%s)"),
  77                            id, strerror(errno));
  78                close(fd);
  79                free(path);
  80                return 1;
  81        }
  82        close(fd);
  83
  84        if (read_result != len) {
  85                strbuf_addf(reason,
  86                            _("Removing worktrees/%s: short read (expected %"PRIuMAX" bytes, read %"PRIuMAX")"),
  87                            id, (uintmax_t)len, (uintmax_t)read_result);
  88                free(path);
  89                return 1;
  90        }
  91        while (len && (path[len - 1] == '\n' || path[len - 1] == '\r'))
  92                len--;
  93        if (!len) {
  94                strbuf_addf(reason, _("Removing worktrees/%s: invalid gitdir file"), id);
  95                free(path);
  96                return 1;
  97        }
  98        path[len] = '\0';
  99        if (!file_exists(path)) {
 100                struct stat st_link;
 101                free(path);
 102                /*
 103                 * the repo is moved manually and has not been
 104                 * accessed since?
 105                 */
 106                if (!stat(git_path("worktrees/%s/link", id), &st_link) &&
 107                    st_link.st_nlink > 1)
 108                        return 0;
 109                if (st.st_mtime <= expire) {
 110                        strbuf_addf(reason, _("Removing worktrees/%s: gitdir file points to non-existent location"), id);
 111                        return 1;
 112                } else {
 113                        return 0;
 114                }
 115        }
 116        free(path);
 117        return 0;
 118}
 119
 120static void prune_worktrees(void)
 121{
 122        struct strbuf reason = STRBUF_INIT;
 123        struct strbuf path = STRBUF_INIT;
 124        DIR *dir = opendir(git_path("worktrees"));
 125        struct dirent *d;
 126        int ret;
 127        if (!dir)
 128                return;
 129        while ((d = readdir(dir)) != NULL) {
 130                if (is_dot_or_dotdot(d->d_name))
 131                        continue;
 132                strbuf_reset(&reason);
 133                if (!prune_worktree(d->d_name, &reason))
 134                        continue;
 135                if (show_only || verbose)
 136                        printf("%s\n", reason.buf);
 137                if (show_only)
 138                        continue;
 139                git_path_buf(&path, "worktrees/%s", d->d_name);
 140                ret = remove_dir_recursively(&path, 0);
 141                if (ret < 0 && errno == ENOTDIR)
 142                        ret = unlink(path.buf);
 143                if (ret)
 144                        error_errno(_("failed to remove '%s'"), path.buf);
 145        }
 146        closedir(dir);
 147        if (!show_only)
 148                rmdir(git_path("worktrees"));
 149        strbuf_release(&reason);
 150        strbuf_release(&path);
 151}
 152
 153static int prune(int ac, const char **av, const char *prefix)
 154{
 155        struct option options[] = {
 156                OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
 157                OPT__VERBOSE(&verbose, N_("report pruned working trees")),
 158                OPT_EXPIRY_DATE(0, "expire", &expire,
 159                                N_("expire working trees older than <time>")),
 160                OPT_END()
 161        };
 162
 163        expire = TIME_MAX;
 164        ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
 165        if (ac)
 166                usage_with_options(worktree_usage, options);
 167        prune_worktrees();
 168        return 0;
 169}
 170
 171static char *junk_work_tree;
 172static char *junk_git_dir;
 173static int is_junk;
 174static pid_t junk_pid;
 175
 176static void remove_junk(void)
 177{
 178        struct strbuf sb = STRBUF_INIT;
 179        if (!is_junk || getpid() != junk_pid)
 180                return;
 181        if (junk_git_dir) {
 182                strbuf_addstr(&sb, junk_git_dir);
 183                remove_dir_recursively(&sb, 0);
 184                strbuf_reset(&sb);
 185        }
 186        if (junk_work_tree) {
 187                strbuf_addstr(&sb, junk_work_tree);
 188                remove_dir_recursively(&sb, 0);
 189        }
 190        strbuf_release(&sb);
 191}
 192
 193static void remove_junk_on_signal(int signo)
 194{
 195        remove_junk();
 196        sigchain_pop(signo);
 197        raise(signo);
 198}
 199
 200static const char *worktree_basename(const char *path, int *olen)
 201{
 202        const char *name;
 203        int len;
 204
 205        len = strlen(path);
 206        while (len && is_dir_sep(path[len - 1]))
 207                len--;
 208
 209        for (name = path + len - 1; name > path; name--)
 210                if (is_dir_sep(*name)) {
 211                        name++;
 212                        break;
 213                }
 214
 215        *olen = len;
 216        return name;
 217}
 218
 219static int add_worktree(const char *path, const char *refname,
 220                        const struct add_opts *opts)
 221{
 222        struct strbuf sb_git = STRBUF_INIT, sb_repo = STRBUF_INIT;
 223        struct strbuf sb = STRBUF_INIT;
 224        const char *name;
 225        struct stat st;
 226        struct child_process cp = CHILD_PROCESS_INIT;
 227        struct argv_array child_env = ARGV_ARRAY_INIT;
 228        int counter = 0, len, ret;
 229        struct strbuf symref = STRBUF_INIT;
 230        struct commit *commit = NULL;
 231        int is_branch = 0;
 232
 233        if (file_exists(path) && !is_empty_dir(path))
 234                die(_("'%s' already exists"), path);
 235
 236        /* is 'refname' a branch or commit? */
 237        if (!opts->detach && !strbuf_check_branch_ref(&symref, refname) &&
 238            ref_exists(symref.buf)) {
 239                is_branch = 1;
 240                if (!opts->force)
 241                        die_if_checked_out(symref.buf, 0);
 242        }
 243        commit = lookup_commit_reference_by_name(refname);
 244        if (!commit)
 245                die(_("invalid reference: %s"), refname);
 246
 247        name = worktree_basename(path, &len);
 248        git_path_buf(&sb_repo, "worktrees/%.*s", (int)(path + len - name), name);
 249        len = sb_repo.len;
 250        if (safe_create_leading_directories_const(sb_repo.buf))
 251                die_errno(_("could not create leading directories of '%s'"),
 252                          sb_repo.buf);
 253        while (!stat(sb_repo.buf, &st)) {
 254                counter++;
 255                strbuf_setlen(&sb_repo, len);
 256                strbuf_addf(&sb_repo, "%d", counter);
 257        }
 258        name = strrchr(sb_repo.buf, '/') + 1;
 259
 260        junk_pid = getpid();
 261        atexit(remove_junk);
 262        sigchain_push_common(remove_junk_on_signal);
 263
 264        if (mkdir(sb_repo.buf, 0777))
 265                die_errno(_("could not create directory of '%s'"), sb_repo.buf);
 266        junk_git_dir = xstrdup(sb_repo.buf);
 267        is_junk = 1;
 268
 269        /*
 270         * lock the incomplete repo so prune won't delete it, unlock
 271         * after the preparation is over.
 272         */
 273        strbuf_addf(&sb, "%s/locked", sb_repo.buf);
 274        if (!opts->keep_locked)
 275                write_file(sb.buf, "initializing");
 276        else
 277                write_file(sb.buf, "added with --lock");
 278
 279        strbuf_addf(&sb_git, "%s/.git", path);
 280        if (safe_create_leading_directories_const(sb_git.buf))
 281                die_errno(_("could not create leading directories of '%s'"),
 282                          sb_git.buf);
 283        junk_work_tree = xstrdup(path);
 284
 285        strbuf_reset(&sb);
 286        strbuf_addf(&sb, "%s/gitdir", sb_repo.buf);
 287        write_file(sb.buf, "%s", real_path(sb_git.buf));
 288        write_file(sb_git.buf, "gitdir: %s/worktrees/%s",
 289                   real_path(get_git_common_dir()), name);
 290        /*
 291         * This is to keep resolve_ref() happy. We need a valid HEAD
 292         * or is_git_directory() will reject the directory. Any value which
 293         * looks like an object ID will do since it will be immediately
 294         * replaced by the symbolic-ref or update-ref invocation in the new
 295         * worktree.
 296         */
 297        strbuf_reset(&sb);
 298        strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
 299        write_file(sb.buf, "%s", sha1_to_hex(null_sha1));
 300        strbuf_reset(&sb);
 301        strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
 302        write_file(sb.buf, "../..");
 303
 304        argv_array_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf);
 305        argv_array_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path);
 306        cp.git_cmd = 1;
 307
 308        if (!is_branch)
 309                argv_array_pushl(&cp.args, "update-ref", "HEAD",
 310                                 oid_to_hex(&commit->object.oid), NULL);
 311        else
 312                argv_array_pushl(&cp.args, "symbolic-ref", "HEAD",
 313                                 symref.buf, NULL);
 314        cp.env = child_env.argv;
 315        ret = run_command(&cp);
 316        if (ret)
 317                goto done;
 318
 319        if (opts->checkout) {
 320                cp.argv = NULL;
 321                argv_array_clear(&cp.args);
 322                argv_array_pushl(&cp.args, "reset", "--hard", NULL);
 323                cp.env = child_env.argv;
 324                ret = run_command(&cp);
 325                if (ret)
 326                        goto done;
 327        }
 328
 329        is_junk = 0;
 330        FREE_AND_NULL(junk_work_tree);
 331        FREE_AND_NULL(junk_git_dir);
 332
 333done:
 334        if (ret || !opts->keep_locked) {
 335                strbuf_reset(&sb);
 336                strbuf_addf(&sb, "%s/locked", sb_repo.buf);
 337                unlink_or_warn(sb.buf);
 338        }
 339
 340        /*
 341         * Hook failure does not warrant worktree deletion, so run hook after
 342         * is_junk is cleared, but do return appropriate code when hook fails.
 343         */
 344        if (!ret && opts->checkout)
 345                ret = run_hook_le(NULL, "post-checkout", oid_to_hex(&null_oid),
 346                                  oid_to_hex(&commit->object.oid), "1", NULL);
 347
 348        argv_array_clear(&child_env);
 349        strbuf_release(&sb);
 350        strbuf_release(&symref);
 351        strbuf_release(&sb_repo);
 352        strbuf_release(&sb_git);
 353        return ret;
 354}
 355
 356static void print_preparing_worktree_line(int detach,
 357                                          const char *branch,
 358                                          const char *new_branch,
 359                                          int force_new_branch)
 360{
 361        if (force_new_branch) {
 362                struct commit *commit = lookup_commit_reference_by_name(new_branch);
 363                if (!commit)
 364                        printf_ln(_("Preparing worktree (new branch '%s')"), new_branch);
 365                else
 366                        printf_ln(_("Preparing worktree (resetting branch '%s'; was at %s)"),
 367                                  new_branch,
 368                                  find_unique_abbrev(commit->object.oid.hash,
 369                                                     DEFAULT_ABBREV));
 370        } else if (new_branch) {
 371                printf_ln(_("Preparing worktree (new branch '%s')"), new_branch);
 372        } else {
 373                struct strbuf s = STRBUF_INIT;
 374                if (!detach && !strbuf_check_branch_ref(&s, branch) &&
 375                    ref_exists(s.buf))
 376                        printf_ln(_("Preparing worktree (checking out '%s')"),
 377                                  branch);
 378                else {
 379                        struct commit *commit = lookup_commit_reference_by_name(branch);
 380                        if (!commit)
 381                                die(_("invalid reference: %s"), branch);
 382                        printf_ln(_("Preparing worktree (detached HEAD %s)"),
 383                                  find_unique_abbrev(commit->object.oid.hash,
 384                                                     DEFAULT_ABBREV));
 385                }
 386                strbuf_release(&s);
 387        }
 388}
 389
 390static int add(int ac, const char **av, const char *prefix)
 391{
 392        struct add_opts opts;
 393        const char *new_branch_force = NULL;
 394        char *path;
 395        const char *branch;
 396        const char *new_branch = NULL;
 397        const char *opt_track = NULL;
 398        struct option options[] = {
 399                OPT__FORCE(&opts.force, N_("checkout <branch> even if already checked out in other worktree")),
 400                OPT_STRING('b', NULL, &new_branch, N_("branch"),
 401                           N_("create a new branch")),
 402                OPT_STRING('B', NULL, &new_branch_force, N_("branch"),
 403                           N_("create or reset a branch")),
 404                OPT_BOOL(0, "detach", &opts.detach, N_("detach HEAD at named commit")),
 405                OPT_BOOL(0, "checkout", &opts.checkout, N_("populate the new working tree")),
 406                OPT_BOOL(0, "lock", &opts.keep_locked, N_("keep the new working tree locked")),
 407                OPT_PASSTHRU(0, "track", &opt_track, NULL,
 408                             N_("set up tracking mode (see git-branch(1))"),
 409                             PARSE_OPT_NOARG | PARSE_OPT_OPTARG),
 410                OPT_BOOL(0, "guess-remote", &guess_remote,
 411                         N_("try to match the new branch name with a remote-tracking branch")),
 412                OPT_END()
 413        };
 414
 415        memset(&opts, 0, sizeof(opts));
 416        opts.checkout = 1;
 417        ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
 418        if (!!opts.detach + !!new_branch + !!new_branch_force > 1)
 419                die(_("-b, -B, and --detach are mutually exclusive"));
 420        if (ac < 1 || ac > 2)
 421                usage_with_options(worktree_usage, options);
 422
 423        path = prefix_filename(prefix, av[0]);
 424        branch = ac < 2 ? "HEAD" : av[1];
 425
 426        if (!strcmp(branch, "-"))
 427                branch = "@{-1}";
 428
 429        if (new_branch_force) {
 430                struct strbuf symref = STRBUF_INIT;
 431
 432                new_branch = new_branch_force;
 433
 434                if (!opts.force &&
 435                    !strbuf_check_branch_ref(&symref, new_branch) &&
 436                    ref_exists(symref.buf))
 437                        die_if_checked_out(symref.buf, 0);
 438                strbuf_release(&symref);
 439        }
 440
 441        if (ac < 2 && !new_branch && !opts.detach) {
 442                int n;
 443                const char *s = worktree_basename(path, &n);
 444                new_branch = xstrndup(s, n);
 445                UNLEAK(new_branch);
 446                if (guess_remote) {
 447                        struct object_id oid;
 448                        const char *remote =
 449                                unique_tracking_name(new_branch, &oid);
 450                        if (remote)
 451                                branch = remote;
 452                }
 453        }
 454
 455        if (ac == 2 && !new_branch && !opts.detach) {
 456                struct object_id oid;
 457                struct commit *commit;
 458                const char *remote;
 459
 460                commit = lookup_commit_reference_by_name(branch);
 461                if (!commit) {
 462                        remote = unique_tracking_name(branch, &oid);
 463                        if (remote) {
 464                                new_branch = branch;
 465                                branch = remote;
 466                        }
 467                }
 468        }
 469
 470        print_preparing_worktree_line(opts.detach, branch, new_branch, !!new_branch_force);
 471
 472        if (new_branch) {
 473                struct child_process cp = CHILD_PROCESS_INIT;
 474                cp.git_cmd = 1;
 475                argv_array_push(&cp.args, "branch");
 476                if (new_branch_force)
 477                        argv_array_push(&cp.args, "--force");
 478                argv_array_push(&cp.args, new_branch);
 479                argv_array_push(&cp.args, branch);
 480                if (opt_track)
 481                        argv_array_push(&cp.args, opt_track);
 482                if (run_command(&cp))
 483                        return -1;
 484                branch = new_branch;
 485        } else if (opt_track) {
 486                die(_("--[no-]track can only be used if a new branch is created"));
 487        }
 488
 489        UNLEAK(path);
 490        UNLEAK(opts);
 491        return add_worktree(path, branch, &opts);
 492}
 493
 494static void show_worktree_porcelain(struct worktree *wt)
 495{
 496        printf("worktree %s\n", wt->path);
 497        if (wt->is_bare)
 498                printf("bare\n");
 499        else {
 500                printf("HEAD %s\n", oid_to_hex(&wt->head_oid));
 501                if (wt->is_detached)
 502                        printf("detached\n");
 503                else if (wt->head_ref)
 504                        printf("branch %s\n", wt->head_ref);
 505        }
 506        printf("\n");
 507}
 508
 509static void show_worktree(struct worktree *wt, int path_maxlen, int abbrev_len)
 510{
 511        struct strbuf sb = STRBUF_INIT;
 512        int cur_path_len = strlen(wt->path);
 513        int path_adj = cur_path_len - utf8_strwidth(wt->path);
 514
 515        strbuf_addf(&sb, "%-*s ", 1 + path_maxlen + path_adj, wt->path);
 516        if (wt->is_bare)
 517                strbuf_addstr(&sb, "(bare)");
 518        else {
 519                strbuf_addf(&sb, "%-*s ", abbrev_len,
 520                                find_unique_abbrev(wt->head_oid.hash, DEFAULT_ABBREV));
 521                if (wt->is_detached)
 522                        strbuf_addstr(&sb, "(detached HEAD)");
 523                else if (wt->head_ref) {
 524                        char *ref = shorten_unambiguous_ref(wt->head_ref, 0);
 525                        strbuf_addf(&sb, "[%s]", ref);
 526                        free(ref);
 527                } else
 528                        strbuf_addstr(&sb, "(error)");
 529        }
 530        printf("%s\n", sb.buf);
 531
 532        strbuf_release(&sb);
 533}
 534
 535static void measure_widths(struct worktree **wt, int *abbrev, int *maxlen)
 536{
 537        int i;
 538
 539        for (i = 0; wt[i]; i++) {
 540                int sha1_len;
 541                int path_len = strlen(wt[i]->path);
 542
 543                if (path_len > *maxlen)
 544                        *maxlen = path_len;
 545                sha1_len = strlen(find_unique_abbrev(wt[i]->head_oid.hash, *abbrev));
 546                if (sha1_len > *abbrev)
 547                        *abbrev = sha1_len;
 548        }
 549}
 550
 551static int list(int ac, const char **av, const char *prefix)
 552{
 553        int porcelain = 0;
 554
 555        struct option options[] = {
 556                OPT_BOOL(0, "porcelain", &porcelain, N_("machine-readable output")),
 557                OPT_END()
 558        };
 559
 560        ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
 561        if (ac)
 562                usage_with_options(worktree_usage, options);
 563        else {
 564                struct worktree **worktrees = get_worktrees(GWT_SORT_LINKED);
 565                int path_maxlen = 0, abbrev = DEFAULT_ABBREV, i;
 566
 567                if (!porcelain)
 568                        measure_widths(worktrees, &abbrev, &path_maxlen);
 569
 570                for (i = 0; worktrees[i]; i++) {
 571                        if (porcelain)
 572                                show_worktree_porcelain(worktrees[i]);
 573                        else
 574                                show_worktree(worktrees[i], path_maxlen, abbrev);
 575                }
 576                free_worktrees(worktrees);
 577        }
 578        return 0;
 579}
 580
 581static int lock_worktree(int ac, const char **av, const char *prefix)
 582{
 583        const char *reason = "", *old_reason;
 584        struct option options[] = {
 585                OPT_STRING(0, "reason", &reason, N_("string"),
 586                           N_("reason for locking")),
 587                OPT_END()
 588        };
 589        struct worktree **worktrees, *wt;
 590
 591        ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
 592        if (ac != 1)
 593                usage_with_options(worktree_usage, options);
 594
 595        worktrees = get_worktrees(0);
 596        wt = find_worktree(worktrees, prefix, av[0]);
 597        if (!wt)
 598                die(_("'%s' is not a working tree"), av[0]);
 599        if (is_main_worktree(wt))
 600                die(_("The main working tree cannot be locked or unlocked"));
 601
 602        old_reason = is_worktree_locked(wt);
 603        if (old_reason) {
 604                if (*old_reason)
 605                        die(_("'%s' is already locked, reason: %s"),
 606                            av[0], old_reason);
 607                die(_("'%s' is already locked"), av[0]);
 608        }
 609
 610        write_file(git_common_path("worktrees/%s/locked", wt->id),
 611                   "%s", reason);
 612        free_worktrees(worktrees);
 613        return 0;
 614}
 615
 616static int unlock_worktree(int ac, const char **av, const char *prefix)
 617{
 618        struct option options[] = {
 619                OPT_END()
 620        };
 621        struct worktree **worktrees, *wt;
 622        int ret;
 623
 624        ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
 625        if (ac != 1)
 626                usage_with_options(worktree_usage, options);
 627
 628        worktrees = get_worktrees(0);
 629        wt = find_worktree(worktrees, prefix, av[0]);
 630        if (!wt)
 631                die(_("'%s' is not a working tree"), av[0]);
 632        if (is_main_worktree(wt))
 633                die(_("The main working tree cannot be locked or unlocked"));
 634        if (!is_worktree_locked(wt))
 635                die(_("'%s' is not locked"), av[0]);
 636        ret = unlink_or_warn(git_common_path("worktrees/%s/locked", wt->id));
 637        free_worktrees(worktrees);
 638        return ret;
 639}
 640
 641int cmd_worktree(int ac, const char **av, const char *prefix)
 642{
 643        struct option options[] = {
 644                OPT_END()
 645        };
 646
 647        git_config(git_worktree_config, NULL);
 648
 649        if (ac < 2)
 650                usage_with_options(worktree_usage, options);
 651        if (!prefix)
 652                prefix = "";
 653        if (!strcmp(av[1], "add"))
 654                return add(ac - 1, av + 1, prefix);
 655        if (!strcmp(av[1], "prune"))
 656                return prune(ac - 1, av + 1, prefix);
 657        if (!strcmp(av[1], "list"))
 658                return list(ac - 1, av + 1, prefix);
 659        if (!strcmp(av[1], "lock"))
 660                return lock_worktree(ac - 1, av + 1, prefix);
 661        if (!strcmp(av[1], "unlock"))
 662                return unlock_worktree(ac - 1, av + 1, prefix);
 663        usage_with_options(worktree_usage, options);
 664}