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-rw-r--r--builtin/worktree.c338
1 files changed, 235 insertions, 103 deletions
diff --git a/builtin/worktree.c b/builtin/worktree.c
index 5e84026177..197fd24a55 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -4,12 +4,12 @@
#include "builtin.h"
#include "dir.h"
#include "parse-options.h"
-#include "argv-array.h"
+#include "strvec.h"
#include "branch.h"
#include "refs.h"
#include "run-command.h"
#include "sigchain.h"
-#include "refs.h"
+#include "submodule.h"
#include "utf8.h"
#include "worktree.h"
@@ -67,7 +67,12 @@ static void delete_worktrees_dir_if_empty(void)
rmdir(git_path("worktrees")); /* ignore failed removal */
}
-static int prune_worktree(const char *id, struct strbuf *reason)
+/*
+ * Return true if worktree entry should be pruned, along with the reason for
+ * pruning. Otherwise, return false and the worktree's path, or NULL if it
+ * cannot be determined. Caller is responsible for freeing returned path.
+ */
+static int should_prune_worktree(const char *id, struct strbuf *reason, char **wtpath)
{
struct stat st;
char *path;
@@ -75,20 +80,21 @@ static int prune_worktree(const char *id, struct strbuf *reason)
size_t len;
ssize_t read_result;
+ *wtpath = NULL;
if (!is_directory(git_path("worktrees/%s", id))) {
- strbuf_addf(reason, _("Removing worktrees/%s: not a valid directory"), id);
+ strbuf_addstr(reason, _("not a valid directory"));
return 1;
}
if (file_exists(git_path("worktrees/%s/locked", id)))
return 0;
if (stat(git_path("worktrees/%s/gitdir", id), &st)) {
- strbuf_addf(reason, _("Removing worktrees/%s: gitdir file does not exist"), id);
+ strbuf_addstr(reason, _("gitdir file does not exist"));
return 1;
}
fd = open(git_path("worktrees/%s/gitdir", id), O_RDONLY);
if (fd < 0) {
- strbuf_addf(reason, _("Removing worktrees/%s: unable to read gitdir file (%s)"),
- id, strerror(errno));
+ strbuf_addf(reason, _("unable to read gitdir file (%s)"),
+ strerror(errno));
return 1;
}
len = xsize_t(st.st_size);
@@ -96,8 +102,8 @@ static int prune_worktree(const char *id, struct strbuf *reason)
read_result = read_in_full(fd, path, len);
if (read_result < 0) {
- strbuf_addf(reason, _("Removing worktrees/%s: unable to read gitdir file (%s)"),
- id, strerror(errno));
+ strbuf_addf(reason, _("unable to read gitdir file (%s)"),
+ strerror(errno));
close(fd);
free(path);
return 1;
@@ -106,53 +112,103 @@ static int prune_worktree(const char *id, struct strbuf *reason)
if (read_result != len) {
strbuf_addf(reason,
- _("Removing worktrees/%s: short read (expected %"PRIuMAX" bytes, read %"PRIuMAX")"),
- id, (uintmax_t)len, (uintmax_t)read_result);
+ _("short read (expected %"PRIuMAX" bytes, read %"PRIuMAX")"),
+ (uintmax_t)len, (uintmax_t)read_result);
free(path);
return 1;
}
while (len && (path[len - 1] == '\n' || path[len - 1] == '\r'))
len--;
if (!len) {
- strbuf_addf(reason, _("Removing worktrees/%s: invalid gitdir file"), id);
+ strbuf_addstr(reason, _("invalid gitdir file"));
free(path);
return 1;
}
path[len] = '\0';
if (!file_exists(path)) {
- free(path);
if (stat(git_path("worktrees/%s/index", id), &st) ||
st.st_mtime <= expire) {
- strbuf_addf(reason, _("Removing worktrees/%s: gitdir file points to non-existent location"), id);
+ strbuf_addstr(reason, _("gitdir file points to non-existent location"));
+ free(path);
return 1;
} else {
+ *wtpath = path;
return 0;
}
}
- free(path);
+ *wtpath = path;
return 0;
}
+static void prune_worktree(const char *id, const char *reason)
+{
+ if (show_only || verbose)
+ printf_ln(_("Removing %s/%s: %s"), "worktrees", id, reason);
+ if (!show_only)
+ delete_git_dir(id);
+}
+
+static int prune_cmp(const void *a, const void *b)
+{
+ const struct string_list_item *x = a;
+ const struct string_list_item *y = b;
+ int c;
+
+ if ((c = fspathcmp(x->string, y->string)))
+ return c;
+ /*
+ * paths same; prune_dupes() removes all but the first worktree entry
+ * having the same path, so sort main worktree ('util' is NULL) above
+ * linked worktrees ('util' not NULL) since main worktree can't be
+ * removed
+ */
+ if (!x->util)
+ return -1;
+ if (!y->util)
+ return 1;
+ /* paths same; sort by .git/worktrees/<id> */
+ return strcmp(x->util, y->util);
+}
+
+static void prune_dups(struct string_list *l)
+{
+ int i;
+
+ QSORT(l->items, l->nr, prune_cmp);
+ for (i = 1; i < l->nr; i++) {
+ if (!fspathcmp(l->items[i].string, l->items[i - 1].string))
+ prune_worktree(l->items[i].util, "duplicate entry");
+ }
+}
+
static void prune_worktrees(void)
{
struct strbuf reason = STRBUF_INIT;
+ struct strbuf main_path = STRBUF_INIT;
+ struct string_list kept = STRING_LIST_INIT_NODUP;
DIR *dir = opendir(git_path("worktrees"));
struct dirent *d;
if (!dir)
return;
while ((d = readdir(dir)) != NULL) {
+ char *path;
if (is_dot_or_dotdot(d->d_name))
continue;
strbuf_reset(&reason);
- if (!prune_worktree(d->d_name, &reason))
- continue;
- if (show_only || verbose)
- printf("%s\n", reason.buf);
- if (show_only)
- continue;
- delete_git_dir(d->d_name);
+ if (should_prune_worktree(d->d_name, &reason, &path))
+ prune_worktree(d->d_name, reason.buf);
+ else if (path)
+ string_list_append(&kept, path)->util = xstrdup(d->d_name);
}
closedir(dir);
+
+ strbuf_add_absolute_path(&main_path, get_git_common_dir());
+ /* massage main worktree absolute path to match 'gitdir' content */
+ strbuf_strip_suffix(&main_path, "/.");
+ string_list_append(&kept, strbuf_detach(&main_path, NULL));
+ prune_dups(&kept);
+ string_list_clear(&kept, 1);
+
if (!show_only)
delete_worktrees_dir_if_empty();
strbuf_release(&reason);
@@ -224,58 +280,55 @@ static const char *worktree_basename(const char *path, int *olen)
return name;
}
-static void validate_worktree_add(const char *path, const struct add_opts *opts)
+/* check that path is viable location for worktree */
+static void check_candidate_path(const char *path,
+ int force,
+ struct worktree **worktrees,
+ const char *cmd)
{
- struct worktree **worktrees;
struct worktree *wt;
int locked;
if (file_exists(path) && !is_empty_dir(path))
die(_("'%s' already exists"), path);
- worktrees = get_worktrees(0);
- /*
- * find_worktree()'s suffix matching may undesirably find the main
- * rather than a linked worktree (for instance, when the basenames
- * of the main worktree and the one being created are the same).
- * We're only interested in linked worktrees, so skip the main
- * worktree with +1.
- */
- wt = find_worktree(worktrees + 1, NULL, path);
+ wt = find_worktree_by_path(worktrees, path);
if (!wt)
- goto done;
+ return;
locked = !!worktree_lock_reason(wt);
- if ((!locked && opts->force) || (locked && opts->force > 1)) {
+ if ((!locked && force) || (locked && force > 1)) {
if (delete_git_dir(wt->id))
- die(_("unable to re-add worktree '%s'"), path);
- goto done;
+ die(_("unusable worktree destination '%s'"), path);
+ return;
}
if (locked)
- die(_("'%s' is a missing but locked worktree;\nuse 'add -f -f' to override, or 'unlock' and 'prune' or 'remove' to clear"), path);
+ die(_("'%s' is a missing but locked worktree;\nuse '%s -f -f' to override, or 'unlock' and 'prune' or 'remove' to clear"), path, cmd);
else
- die(_("'%s' is a missing but already registered worktree;\nuse 'add -f' to override, or 'prune' or 'remove' to clear"), path);
-
-done:
- free_worktrees(worktrees);
+ die(_("'%s' is a missing but already registered worktree;\nuse '%s -f' to override, or 'prune' or 'remove' to clear"), path, cmd);
}
static int add_worktree(const char *path, const char *refname,
const struct add_opts *opts)
{
struct strbuf sb_git = STRBUF_INIT, sb_repo = STRBUF_INIT;
- struct strbuf sb = STRBUF_INIT;
+ struct strbuf sb = STRBUF_INIT, realpath = STRBUF_INIT;
const char *name;
- struct stat st;
struct child_process cp = CHILD_PROCESS_INIT;
- struct argv_array child_env = ARGV_ARRAY_INIT;
- int counter = 0, len, ret;
+ struct strvec child_env = STRVEC_INIT;
+ unsigned int counter = 0;
+ int len, ret;
struct strbuf symref = STRBUF_INIT;
struct commit *commit = NULL;
int is_branch = 0;
+ struct strbuf sb_name = STRBUF_INIT;
+ struct worktree **worktrees;
- validate_worktree_add(path, opts);
+ worktrees = get_worktrees();
+ check_candidate_path(path, opts->force, worktrees, "add");
+ free_worktrees(worktrees);
+ worktrees = NULL;
/* is 'refname' a branch or commit? */
if (!opts->detach && !strbuf_check_branch_ref(&symref, refname) &&
@@ -289,13 +342,23 @@ static int add_worktree(const char *path, const char *refname,
die(_("invalid reference: %s"), refname);
name = worktree_basename(path, &len);
- git_path_buf(&sb_repo, "worktrees/%.*s", (int)(path + len - name), name);
+ strbuf_add(&sb, name, path + len - name);
+ sanitize_refname_component(sb.buf, &sb_name);
+ if (!sb_name.len)
+ BUG("How come '%s' becomes empty after sanitization?", sb.buf);
+ strbuf_reset(&sb);
+ name = sb_name.buf;
+ git_path_buf(&sb_repo, "worktrees/%s", name);
len = sb_repo.len;
if (safe_create_leading_directories_const(sb_repo.buf))
die_errno(_("could not create leading directories of '%s'"),
sb_repo.buf);
- while (!stat(sb_repo.buf, &st)) {
+
+ while (mkdir(sb_repo.buf, 0777)) {
counter++;
+ if ((errno != EEXIST) || !counter /* overflow */)
+ die_errno(_("could not create directory of '%s'"),
+ sb_repo.buf);
strbuf_setlen(&sb_repo, len);
strbuf_addf(&sb_repo, "%d", counter);
}
@@ -305,8 +368,6 @@ static int add_worktree(const char *path, const char *refname,
atexit(remove_junk);
sigchain_push_common(remove_junk_on_signal);
- if (mkdir(sb_repo.buf, 0777))
- die_errno(_("could not create directory of '%s'"), sb_repo.buf);
junk_git_dir = xstrdup(sb_repo.buf);
is_junk = 1;
@@ -328,9 +389,11 @@ static int add_worktree(const char *path, const char *refname,
strbuf_reset(&sb);
strbuf_addf(&sb, "%s/gitdir", sb_repo.buf);
- write_file(sb.buf, "%s", real_path(sb_git.buf));
+ strbuf_realpath(&realpath, sb_git.buf, 1);
+ write_file(sb.buf, "%s", realpath.buf);
+ strbuf_realpath(&realpath, get_git_common_dir(), 1);
write_file(sb_git.buf, "gitdir: %s/worktrees/%s",
- real_path(get_git_common_dir()), name);
+ realpath.buf, name);
/*
* This is to keep resolve_ref() happy. We need a valid HEAD
* or is_git_directory() will reject the directory. Any value which
@@ -340,37 +403,37 @@ static int add_worktree(const char *path, const char *refname,
*/
strbuf_reset(&sb);
strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
- write_file(sb.buf, "%s", sha1_to_hex(null_sha1));
+ write_file(sb.buf, "%s", oid_to_hex(&null_oid));
strbuf_reset(&sb);
strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
write_file(sb.buf, "../..");
- argv_array_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf);
- argv_array_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path);
+ strvec_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf);
+ strvec_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path);
cp.git_cmd = 1;
if (!is_branch)
- argv_array_pushl(&cp.args, "update-ref", "HEAD",
- oid_to_hex(&commit->object.oid), NULL);
+ strvec_pushl(&cp.args, "update-ref", "HEAD",
+ oid_to_hex(&commit->object.oid), NULL);
else {
- argv_array_pushl(&cp.args, "symbolic-ref", "HEAD",
- symref.buf, NULL);
+ strvec_pushl(&cp.args, "symbolic-ref", "HEAD",
+ symref.buf, NULL);
if (opts->quiet)
- argv_array_push(&cp.args, "--quiet");
+ strvec_push(&cp.args, "--quiet");
}
- cp.env = child_env.argv;
+ cp.env = child_env.v;
ret = run_command(&cp);
if (ret)
goto done;
if (opts->checkout) {
cp.argv = NULL;
- argv_array_clear(&cp.args);
- argv_array_pushl(&cp.args, "reset", "--hard", NULL);
+ strvec_clear(&cp.args);
+ strvec_pushl(&cp.args, "reset", "--hard", "--no-recurse-submodules", NULL);
if (opts->quiet)
- argv_array_push(&cp.args, "--quiet");
- cp.env = child_env.argv;
+ strvec_push(&cp.args, "--quiet");
+ cp.env = child_env.v;
ret = run_command(&cp);
if (ret)
goto done;
@@ -401,19 +464,22 @@ done:
cp.dir = path;
cp.env = env;
cp.argv = NULL;
- argv_array_pushl(&cp.args, absolute_path(hook),
- oid_to_hex(&null_oid),
- oid_to_hex(&commit->object.oid),
- "1", NULL);
+ cp.trace2_hook_name = "post-checkout";
+ strvec_pushl(&cp.args, absolute_path(hook),
+ oid_to_hex(&null_oid),
+ oid_to_hex(&commit->object.oid),
+ "1", NULL);
ret = run_command(&cp);
}
}
- argv_array_clear(&child_env);
+ strvec_clear(&child_env);
strbuf_release(&sb);
strbuf_release(&symref);
strbuf_release(&sb_repo);
strbuf_release(&sb_git);
+ strbuf_release(&sb_name);
+ strbuf_release(&realpath);
return ret;
}
@@ -489,7 +555,7 @@ static int add(int ac, const char **av, const char *prefix)
N_("create a new branch")),
OPT_STRING('B', NULL, &new_branch_force, N_("branch"),
N_("create or reset a branch")),
- OPT_BOOL(0, "detach", &opts.detach, N_("detach HEAD at named commit")),
+ OPT_BOOL('d', "detach", &opts.detach, N_("detach HEAD at named commit")),
OPT_BOOL(0, "checkout", &opts.checkout, N_("populate the new working tree")),
OPT_BOOL(0, "lock", &opts.keep_locked, N_("keep the new working tree locked")),
OPT__QUIET(&opts.quiet, N_("suppress progress reporting")),
@@ -553,15 +619,15 @@ static int add(int ac, const char **av, const char *prefix)
if (new_branch) {
struct child_process cp = CHILD_PROCESS_INIT;
cp.git_cmd = 1;
- argv_array_push(&cp.args, "branch");
+ strvec_push(&cp.args, "branch");
if (new_branch_force)
- argv_array_push(&cp.args, "--force");
+ strvec_push(&cp.args, "--force");
if (opts.quiet)
- argv_array_push(&cp.args, "--quiet");
- argv_array_push(&cp.args, new_branch);
- argv_array_push(&cp.args, branch);
+ strvec_push(&cp.args, "--quiet");
+ strvec_push(&cp.args, new_branch);
+ strvec_push(&cp.args, branch);
if (opt_track)
- argv_array_push(&cp.args, opt_track);
+ strvec_push(&cp.args, opt_track);
if (run_command(&cp))
return -1;
branch = new_branch;
@@ -610,8 +676,11 @@ static void show_worktree(struct worktree *wt, int path_maxlen, int abbrev_len)
} else
strbuf_addstr(&sb, "(error)");
}
- printf("%s\n", sb.buf);
+ if (!is_main_worktree(wt) && worktree_lock_reason(wt))
+ strbuf_addstr(&sb, " locked");
+
+ printf("%s\n", sb.buf);
strbuf_release(&sb);
}
@@ -631,6 +700,23 @@ static void measure_widths(struct worktree **wt, int *abbrev, int *maxlen)
}
}
+static int pathcmp(const void *a_, const void *b_)
+{
+ const struct worktree *const *a = a_;
+ const struct worktree *const *b = b_;
+ return fspathcmp((*a)->path, (*b)->path);
+}
+
+static void pathsort(struct worktree **wt)
+{
+ int n = 0;
+ struct worktree **p = wt;
+
+ while (*p++)
+ n++;
+ QSORT(wt, n, pathcmp);
+}
+
static int list(int ac, const char **av, const char *prefix)
{
int porcelain = 0;
@@ -644,9 +730,12 @@ static int list(int ac, const char **av, const char *prefix)
if (ac)
usage_with_options(worktree_usage, options);
else {
- struct worktree **worktrees = get_worktrees(GWT_SORT_LINKED);
+ struct worktree **worktrees = get_worktrees();
int path_maxlen = 0, abbrev = DEFAULT_ABBREV, i;
+ /* sort worktrees by path but keep main worktree at top */
+ pathsort(worktrees + 1);
+
if (!porcelain)
measure_widths(worktrees, &abbrev, &path_maxlen);
@@ -675,7 +764,7 @@ static int lock_worktree(int ac, const char **av, const char *prefix)
if (ac != 1)
usage_with_options(worktree_usage, options);
- worktrees = get_worktrees(0);
+ worktrees = get_worktrees();
wt = find_worktree(worktrees, prefix, av[0]);
if (!wt)
die(_("'%s' is not a working tree"), av[0]);
@@ -708,7 +797,7 @@ static int unlock_worktree(int ac, const char **av, const char *prefix)
if (ac != 1)
usage_with_options(worktree_usage, options);
- worktrees = get_worktrees(0);
+ worktrees = get_worktrees();
wt = find_worktree(worktrees, prefix, av[0]);
if (!wt)
die(_("'%s' is not a working tree"), av[0]);
@@ -724,20 +813,36 @@ static int unlock_worktree(int ac, const char **av, const char *prefix)
static void validate_no_submodules(const struct worktree *wt)
{
struct index_state istate = { NULL };
+ struct strbuf path = STRBUF_INIT;
int i, found_submodules = 0;
- if (read_index_from(&istate, worktree_git_path(wt, "index"),
- get_worktree_git_dir(wt)) > 0) {
+ if (is_directory(worktree_git_path(wt, "modules"))) {
+ /*
+ * There could be false positives, e.g. the "modules"
+ * directory exists but is empty. But it's a rare case and
+ * this simpler check is probably good enough for now.
+ */
+ found_submodules = 1;
+ } else if (read_index_from(&istate, worktree_git_path(wt, "index"),
+ get_worktree_git_dir(wt)) > 0) {
for (i = 0; i < istate.cache_nr; i++) {
struct cache_entry *ce = istate.cache[i];
+ int err;
- if (S_ISGITLINK(ce->ce_mode)) {
- found_submodules = 1;
- break;
- }
+ if (!S_ISGITLINK(ce->ce_mode))
+ continue;
+
+ strbuf_reset(&path);
+ strbuf_addf(&path, "%s/%s", wt->path, ce->name);
+ if (!is_submodule_populated_gently(path.buf, &err))
+ continue;
+
+ found_submodules = 1;
+ break;
}
}
discard_index(&istate);
+ strbuf_release(&path);
if (found_submodules)
die(_("working trees containing submodules cannot be moved or removed"));
@@ -766,7 +871,7 @@ static int move_worktree(int ac, const char **av, const char *prefix)
strbuf_addstr(&dst, path);
free(path);
- worktrees = get_worktrees(0);
+ worktrees = get_worktrees();
wt = find_worktree(worktrees, prefix, av[0]);
if (!wt)
die(_("'%s' is not a working tree"), av[0]);
@@ -781,8 +886,7 @@ static int move_worktree(int ac, const char **av, const char *prefix)
strbuf_trim_trailing_dir_sep(&dst);
strbuf_addstr(&dst, sep);
}
- if (file_exists(dst.buf))
- die(_("target '%s' already exists"), dst.buf);
+ check_candidate_path(dst.buf, force, worktrees, "move");
validate_no_submodules(wt);
@@ -823,7 +927,6 @@ static int move_worktree(int ac, const char **av, const char *prefix)
static void check_clean_worktree(struct worktree *wt,
const char *original_path)
{
- struct argv_array child_env = ARGV_ARRAY_INIT;
struct child_process cp;
char buf[1];
int ret;
@@ -834,15 +937,14 @@ static void check_clean_worktree(struct worktree *wt,
*/
validate_no_submodules(wt);
- argv_array_pushf(&child_env, "%s=%s/.git",
- GIT_DIR_ENVIRONMENT, wt->path);
- argv_array_pushf(&child_env, "%s=%s",
- GIT_WORK_TREE_ENVIRONMENT, wt->path);
- memset(&cp, 0, sizeof(cp));
- argv_array_pushl(&cp.args, "status",
- "--porcelain", "--ignore-submodules=none",
- NULL);
- cp.env = child_env.argv;
+ child_process_init(&cp);
+ strvec_pushf(&cp.env_array, "%s=%s/.git",
+ GIT_DIR_ENVIRONMENT, wt->path);
+ strvec_pushf(&cp.env_array, "%s=%s",
+ GIT_WORK_TREE_ENVIRONMENT, wt->path);
+ strvec_pushl(&cp.args, "status",
+ "--porcelain", "--ignore-submodules=none",
+ NULL);
cp.git_cmd = 1;
cp.dir = wt->path;
cp.out = -1;
@@ -852,7 +954,7 @@ static void check_clean_worktree(struct worktree *wt,
original_path);
ret = xread(cp.out, buf, sizeof(buf));
if (ret)
- die(_("'%s' is dirty, use --force to delete it"),
+ die(_("'%s' contains modified or untracked files, use --force to delete it"),
original_path);
close(cp.out);
ret = finish_command(&cp);
@@ -893,7 +995,7 @@ static int remove_worktree(int ac, const char **av, const char *prefix)
if (ac != 1)
usage_with_options(worktree_usage, options);
- worktrees = get_worktrees(0);
+ worktrees = get_worktrees();
wt = find_worktree(worktrees, prefix, av[0]);
if (!wt)
die(_("'%s' is not a working tree"), av[0]);
@@ -929,6 +1031,34 @@ static int remove_worktree(int ac, const char **av, const char *prefix)
return ret;
}
+static void report_repair(int iserr, const char *path, const char *msg, void *cb_data)
+{
+ if (!iserr) {
+ printf_ln(_("repair: %s: %s"), msg, path);
+ } else {
+ int *exit_status = (int *)cb_data;
+ fprintf_ln(stderr, _("error: %s: %s"), msg, path);
+ *exit_status = 1;
+ }
+}
+
+static int repair(int ac, const char **av, const char *prefix)
+{
+ const char **p;
+ const char *self[] = { ".", NULL };
+ struct option options[] = {
+ OPT_END()
+ };
+ int rc = 0;
+
+ ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
+ repair_worktrees(report_repair, &rc);
+ p = ac > 0 ? av : self;
+ for (; *p; p++)
+ repair_worktree_at_path(*p, report_repair, &rc);
+ return rc;
+}
+
int cmd_worktree(int ac, const char **av, const char *prefix)
{
struct option options[] = {
@@ -955,5 +1085,7 @@ int cmd_worktree(int ac, const char **av, const char *prefix)
return move_worktree(ac - 1, av + 1, prefix);
if (!strcmp(av[1], "remove"))
return remove_worktree(ac - 1, av + 1, prefix);
+ if (!strcmp(av[1], "repair"))
+ return repair(ac - 1, av + 1, prefix);
usage_with_options(worktree_usage, options);
}