[thirdparty/git.git] / builtin / worktree.c

#include "cache.h"
#include "builtin.h"
#include "dir.h"
#include "parse-options.h"
#include "argv-array.h"
#include "run-command.h"
#include "sigchain.h"

static const char * const worktree_usage[] = {
	N_("git worktree add [<options>] <path> <branch>"),
	N_("git worktree prune [<options>]"),
	NULL
};

struct add_opts {
	int force;
	int detach;
	const char *new_branch;
	int force_new_branch;
};

static int show_only;
static int verbose;
static unsigned long expire;

static int prune_worktree(const char *id, struct strbuf *reason)
{
	struct stat st;
	char *path;
	int fd, len;

	if (!is_directory(git_path("worktrees/%s", id))) {
		strbuf_addf(reason, _("Removing worktrees/%s: not a valid directory"), id);
		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);
		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));
		return 1;
	}
	len = st.st_size;
	path = xmalloc(len + 1);
	read_in_full(fd, path, len);
	close(fd);
	while (len && (path[len - 1] == '\n' || path[len - 1] == '\r'))
		len--;
	if (!len) {
		strbuf_addf(reason, _("Removing worktrees/%s: invalid gitdir file"), id);
		free(path);
		return 1;
	}
	path[len] = '\0';
	if (!file_exists(path)) {
		struct stat st_link;
		free(path);
		/*
		 * the repo is moved manually and has not been
		 * accessed since?
		 */
		if (!stat(git_path("worktrees/%s/link", id), &st_link) &&
		    st_link.st_nlink > 1)
			return 0;
		if (st.st_mtime <= expire) {
			strbuf_addf(reason, _("Removing worktrees/%s: gitdir file points to non-existent location"), id);
			return 1;
		} else {
			return 0;
		}
	}
	free(path);
	return 0;
}

static void prune_worktrees(void)
{
	struct strbuf reason = STRBUF_INIT;
	struct strbuf path = STRBUF_INIT;
	DIR *dir = opendir(git_path("worktrees"));
	struct dirent *d;
	int ret;
	if (!dir)
		return;
	while ((d = readdir(dir)) != NULL) {
		if (!strcmp(d->d_name, ".") || !strcmp(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;
		strbuf_reset(&path);
		strbuf_addstr(&path, git_path("worktrees/%s", d->d_name));
		ret = remove_dir_recursively(&path, 0);
		if (ret < 0 && errno == ENOTDIR)
			ret = unlink(path.buf);
		if (ret)
			error(_("failed to remove: %s"), strerror(errno));
	}
	closedir(dir);
	if (!show_only)
		rmdir(git_path("worktrees"));
	strbuf_release(&reason);
	strbuf_release(&path);
}

static int prune(int ac, const char **av, const char *prefix)
{
	struct option options[] = {
		OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
		OPT__VERBOSE(&verbose, N_("report pruned objects")),
		OPT_EXPIRY_DATE(0, "expire", &expire,
				N_("expire objects older than <time>")),
		OPT_END()
	};

	expire = ULONG_MAX;
	ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
	if (ac)
		usage_with_options(worktree_usage, options);
	prune_worktrees();
	return 0;
}

static char *junk_work_tree;
static char *junk_git_dir;
static int is_junk;
static pid_t junk_pid;

static void remove_junk(void)
{
	struct strbuf sb = STRBUF_INIT;
	if (!is_junk || getpid() != junk_pid)
		return;
	if (junk_git_dir) {
		strbuf_addstr(&sb, junk_git_dir);
		remove_dir_recursively(&sb, 0);
		strbuf_reset(&sb);
	}
	if (junk_work_tree) {
		strbuf_addstr(&sb, junk_work_tree);
		remove_dir_recursively(&sb, 0);
	}
	strbuf_release(&sb);
}

static void remove_junk_on_signal(int signo)
{
	remove_junk();
	sigchain_pop(signo);
	raise(signo);
}

static const char *worktree_basename(const char *path, int *olen)
{
	const char *name;
	int len;

	len = strlen(path);
	while (len && is_dir_sep(path[len - 1]))
		len--;

	for (name = path + len - 1; name > path; name--)
		if (is_dir_sep(*name)) {
			name++;
			break;
		}

	*olen = len;
	return name;
}

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;
	const char *name;
	struct stat st;
	struct child_process cp;
	struct argv_array child_env = ARGV_ARRAY_INIT;
	int counter = 0, len, ret;
	unsigned char rev[20];

	if (file_exists(path) && !is_empty_dir(path))
		die(_("'%s' already exists"), path);

	name = worktree_basename(path, &len);
	strbuf_addstr(&sb_repo,
		      git_path("worktrees/%.*s", (int)(path + len - name), 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)) {
		counter++;
		strbuf_setlen(&sb_repo, len);
		strbuf_addf(&sb_repo, "%d", counter);
	}
	name = strrchr(sb_repo.buf, '/') + 1;

	junk_pid = getpid();
	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;

	/*
	 * lock the incomplete repo so prune won't delete it, unlock
	 * after the preparation is over.
	 */
	strbuf_addf(&sb, "%s/locked", sb_repo.buf);
	write_file(sb.buf, 1, "initializing\n");

	strbuf_addf(&sb_git, "%s/.git", path);
	if (safe_create_leading_directories_const(sb_git.buf))
		die_errno(_("could not create leading directories of '%s'"),
			  sb_git.buf);
	junk_work_tree = xstrdup(path);

	strbuf_reset(&sb);
	strbuf_addf(&sb, "%s/gitdir", sb_repo.buf);
	write_file(sb.buf, 1, "%s\n", real_path(sb_git.buf));
	write_file(sb_git.buf, 1, "gitdir: %s/worktrees/%s\n",
		   real_path(get_git_common_dir()), name);
	/*
	 * This is to keep resolve_ref() happy. We need a valid HEAD
	 * or is_git_directory() will reject the directory. Moreover, HEAD
	 * in the new worktree must resolve to the same value as HEAD in
	 * the current tree since the command invoked to populate the new
	 * worktree will be handed the branch/ref specified by the user.
	 * For instance, if the user asks for the new worktree to be based
	 * at HEAD~5, then the resolved HEAD~5 in the new worktree must
	 * match the resolved HEAD~5 in the current tree in order to match
	 * the user's expectation.
	 */
	if (!resolve_ref_unsafe("HEAD", 0, rev, NULL))
		die(_("unable to resolve HEAD"));
	strbuf_reset(&sb);
	strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
	write_file(sb.buf, 1, "%s\n", sha1_to_hex(rev));
	strbuf_reset(&sb);
	strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
	write_file(sb.buf, 1, "../..\n");

	fprintf_ln(stderr, _("Preparing %s (identifier %s)"), path, name);

	setenv("GIT_CHECKOUT_NEW_WORKTREE", "1", 1);
	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);
	memset(&cp, 0, sizeof(cp));
	cp.git_cmd = 1;
	argv_array_push(&cp.args, "checkout");
	if (opts->force)
		argv_array_push(&cp.args, "--ignore-other-worktrees");
	if (opts->detach)
		argv_array_push(&cp.args, "--detach");
	argv_array_push(&cp.args, refname);
	cp.env = child_env.argv;
	ret = run_command(&cp);
	if (!ret) {
		is_junk = 0;
		free(junk_work_tree);
		free(junk_git_dir);
		junk_work_tree = NULL;
		junk_git_dir = NULL;
	}
	strbuf_reset(&sb);
	strbuf_addf(&sb, "%s/locked", sb_repo.buf);
	unlink_or_warn(sb.buf);
	argv_array_clear(&child_env);
	strbuf_release(&sb);
	strbuf_release(&sb_repo);
	strbuf_release(&sb_git);
	return ret;
}

static int add(int ac, const char **av, const char *prefix)
{
	struct add_opts opts;
	const char *new_branch_force = NULL;
	const char *path, *branch;
	struct option options[] = {
		OPT__FORCE(&opts.force, N_("checkout <branch> even if already checked out in other worktree")),
		OPT_STRING('b', NULL, &opts.new_branch, N_("branch"),
			   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_END()
	};

	memset(&opts, 0, sizeof(opts));
	ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
	if (!!opts.detach + !!opts.new_branch + !!new_branch_force > 1)
		die(_("-b, -B, and --detach are mutually exclusive"));
	if (ac < 1 || ac > 2)
		usage_with_options(worktree_usage, options);

	path = prefix ? prefix_filename(prefix, strlen(prefix), av[0]) : av[0];
	branch = ac < 2 ? "HEAD" : av[1];

	opts.force_new_branch = !!new_branch_force;
	if (opts.force_new_branch)
		opts.new_branch = new_branch_force;

	if (ac < 2 && !opts.new_branch && !opts.detach) {
		int n;
		const char *s = worktree_basename(path, &n);
		opts.new_branch = xstrndup(s, n);
	}

	if (opts.new_branch) {
		struct child_process cp;
		memset(&cp, 0, sizeof(cp));
		cp.git_cmd = 1;
		argv_array_push(&cp.args, "branch");
		if (opts.force_new_branch)
			argv_array_push(&cp.args, "--force");
		argv_array_push(&cp.args, opts.new_branch);
		argv_array_push(&cp.args, branch);
		if (run_command(&cp))
			return -1;
		branch = opts.new_branch;
	}

	return add_worktree(path, branch, &opts);
}

int cmd_worktree(int ac, const char **av, const char *prefix)
{
	struct option options[] = {
		OPT_END()
	};

	if (ac < 2)
		usage_with_options(worktree_usage, options);
	if (!strcmp(av[1], "add"))
		return add(ac - 1, av + 1, prefix);
	if (!strcmp(av[1], "prune"))
		return prune(ac - 1, av + 1, prefix);
	usage_with_options(worktree_usage, options);
}
Commit	Line	Data
df0b6cfb NTND	1	#include "cache.h"
	2	#include "builtin.h"
	3	#include "dir.h"
	4	#include "parse-options.h"
fc56361f ES	5	#include "argv-array.h"
fc56361f ES	6	#include "run-command.h"
b979d950	7	#include "sigchain.h"
df0b6cfb NTND	8
df0b6cfb NTND	9	static const char * const worktree_usage[] = {
f4325444	10	N_("git worktree add [<options>] <path> <branch>"),
df0b6cfb NTND	11	N_("git worktree prune [<options>]"),
	12	NULL
	13	};
	14
5dd6e234 ES	15	struct add_opts {
	16	int force;
	17	int detach;
	18	const char *new_branch;
	19	int force_new_branch;
	20	};
	21
df0b6cfb NTND	22	static int show_only;
	23	static int verbose;
	24	static unsigned long expire;
	25
	26	static int prune_worktree(const char id, struct strbuf reason)
	27	{
	28	struct stat st;
	29	char *path;
	30	int fd, len;
	31
	32	if (!is_directory(git_path("worktrees/%s", id))) {
	33	strbuf_addf(reason, _("Removing worktrees/%s: not a valid directory"), id);
	34	return 1;
	35	}
	36	if (file_exists(git_path("worktrees/%s/locked", id)))
	37	return 0;
	38	if (stat(git_path("worktrees/%s/gitdir", id), &st)) {
	39	strbuf_addf(reason, _("Removing worktrees/%s: gitdir file does not exist"), id);
	40	return 1;
	41	}
	42	fd = open(git_path("worktrees/%s/gitdir", id), O_RDONLY);
	43	if (fd < 0) {
	44	strbuf_addf(reason, _("Removing worktrees/%s: unable to read gitdir file (%s)"),
	45	id, strerror(errno));
	46	return 1;
	47	}
	48	len = st.st_size;
	49	path = xmalloc(len + 1);
	50	read_in_full(fd, path, len);
	51	close(fd);
	52	while (len && (path[len - 1] == '\n' \|\| path[len - 1] == '\r'))
	53	len--;
	54	if (!len) {
	55	strbuf_addf(reason, _("Removing worktrees/%s: invalid gitdir file"), id);
	56	free(path);
	57	return 1;
	58	}
	59	path[len] = '\0';
	60	if (!file_exists(path)) {
	61	struct stat st_link;
	62	free(path);
	63	/*
	64	* the repo is moved manually and has not been
	65	* accessed since?
	66	*/
	67	if (!stat(git_path("worktrees/%s/link", id), &st_link) &&
	68	st_link.st_nlink > 1)
	69	return 0;
	70	if (st.st_mtime <= expire) {
	71	strbuf_addf(reason, _("Removing worktrees/%s: gitdir file points to non-existent location"), id);
	72	return 1;
	73	} else {
	74	return 0;
	75	}
	76	}
	77	free(path);
	78	return 0;
	79	}
	80
	81	static void prune_worktrees(void)
	82	{
	83	struct strbuf reason = STRBUF_INIT;
	84	struct strbuf path = STRBUF_INIT;
	85	DIR *dir = opendir(git_path("worktrees"));
86	struct dirent *d;
87	int ret;
88	if (!dir)
89	return;
90	while ((d = readdir(dir)) != NULL) {
91	if (!strcmp(d->d_name, ".") \|\| !strcmp(d->d_name, ".."))
92	continue;
93	strbuf_reset(&reason);
94	if (!prune_worktree(d->d_name, &reason))
95	continue;
96	if (show_only \|\| verbose)
97	printf("%s\n", reason.buf);
98	if (show_only)
99	continue;
100	strbuf_reset(&path);
101	strbuf_addstr(&path, git_path("worktrees/%s", d->d_name));
102	ret = remove_dir_recursively(&path, 0);
103	if (ret < 0 && errno == ENOTDIR)
104	ret = unlink(path.buf);
105	if (ret)
106	error(_("failed to remove: %s"), strerror(errno));
107	}
108	closedir(dir);
109	if (!show_only)
110	rmdir(git_path("worktrees"));
111	strbuf_release(&reason);
112	strbuf_release(&path);
113	}
114
115	static int prune(int ac, const char *av, const char prefix)
116	{
117	struct option options[] = {
118	OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
119	OPT__VERBOSE(&verbose, N_("report pruned objects")),
120	OPT_EXPIRY_DATE(0, "expire", &expire,
121	N_("expire objects older than <time>")),
122	OPT_END()
123	};
124
125	expire = ULONG_MAX;
126	ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
127	if (ac)
128	usage_with_options(worktree_usage, options);
129	prune_worktrees();
130	return 0;
131	}
132
b979d950 ES	133	static char *junk_work_tree;
	134	static char *junk_git_dir;
	135	static int is_junk;
	136	static pid_t junk_pid;
	137
	138	static void remove_junk(void)
	139	{
	140	struct strbuf sb = STRBUF_INIT;
	141	if (!is_junk \|\| getpid() != junk_pid)
	142	return;
	143	if (junk_git_dir) {
	144	strbuf_addstr(&sb, junk_git_dir);
	145	remove_dir_recursively(&sb, 0);
	146	strbuf_reset(&sb);
	147	}
	148	if (junk_work_tree) {
	149	strbuf_addstr(&sb, junk_work_tree);
	150	remove_dir_recursively(&sb, 0);
	151	}
	152	strbuf_release(&sb);
	153	}
	154
	155	static void remove_junk_on_signal(int signo)
	156	{
	157	remove_junk();
	158	sigchain_pop(signo);
	159	raise(signo);
	160	}
	161
f5682b2a ES	162	static const char worktree_basename(const char path, int *olen)
	163	{
	164	const char *name;
	165	int len;
	166
	167	len = strlen(path);
	168	while (len && is_dir_sep(path[len - 1]))
	169	len--;
	170
	171	for (name = path + len - 1; name > path; name--)
	172	if (is_dir_sep(*name)) {
	173	name++;
	174	break;
	175	}
	176
	177	*olen = len;
	178	return name;
	179	}
	180
80a0548f	181	static int add_worktree(const char path, const char refname,
5dd6e234	182	const struct add_opts *opts)
b979d950 ES	183	{
	184	struct strbuf sb_git = STRBUF_INIT, sb_repo = STRBUF_INIT;
	185	struct strbuf sb = STRBUF_INIT;
	186	const char *name;
	187	struct stat st;
	188	struct child_process cp;
ae2a3827	189	struct argv_array child_env = ARGV_ARRAY_INIT;
b979d950 ES	190	int counter = 0, len, ret;
	191	unsigned char rev[20];
	192
	193	if (file_exists(path) && !is_empty_dir(path))
	194	die(_("'%s' already exists"), path);
	195
f5682b2a	196	name = worktree_basename(path, &len);
b979d950 ES	197	strbuf_addstr(&sb_repo,
	198	git_path("worktrees/%.*s", (int)(path + len - name), name));
	199	len = sb_repo.len;
	200	if (safe_create_leading_directories_const(sb_repo.buf))
	201	die_errno(_("could not create leading directories of '%s'"),
	202	sb_repo.buf);
	203	while (!stat(sb_repo.buf, &st)) {
	204	counter++;
	205	strbuf_setlen(&sb_repo, len);
	206	strbuf_addf(&sb_repo, "%d", counter);
	207	}
	208	name = strrchr(sb_repo.buf, '/') + 1;
	209
	210	junk_pid = getpid();
	211	atexit(remove_junk);
	212	sigchain_push_common(remove_junk_on_signal);
	213
	214	if (mkdir(sb_repo.buf, 0777))
	215	die_errno(_("could not create directory of '%s'"), sb_repo.buf);
	216	junk_git_dir = xstrdup(sb_repo.buf);
	217	is_junk = 1;
	218
	219	/*
	220	* lock the incomplete repo so prune won't delete it, unlock
	221	* after the preparation is over.
	222	*/
	223	strbuf_addf(&sb, "%s/locked", sb_repo.buf);
	224	write_file(sb.buf, 1, "initializing\n");
	225
	226	strbuf_addf(&sb_git, "%s/.git", path);
	227	if (safe_create_leading_directories_const(sb_git.buf))
	228	die_errno(_("could not create leading directories of '%s'"),
	229	sb_git.buf);
	230	junk_work_tree = xstrdup(path);
	231
	232	strbuf_reset(&sb);
	233	strbuf_addf(&sb, "%s/gitdir", sb_repo.buf);
	234	write_file(sb.buf, 1, "%s\n", real_path(sb_git.buf));
	235	write_file(sb_git.buf, 1, "gitdir: %s/worktrees/%s\n",
	236	real_path(get_git_common_dir()), name);
	237	/*
	238	* This is to keep resolve_ref() happy. We need a valid HEAD
	239	* or is_git_directory() will reject the directory. Moreover, HEAD
	240	* in the new worktree must resolve to the same value as HEAD in
	241	* the current tree since the command invoked to populate the new
	242	* worktree will be handed the branch/ref specified by the user.
	243	* For instance, if the user asks for the new worktree to be based
	244	* at HEAD~5, then the resolved HEAD~5 in the new worktree must
	245	* match the resolved HEAD~5 in the current tree in order to match
	246	* the user's expectation.
	247	*/
	248	if (!resolve_ref_unsafe("HEAD", 0, rev, NULL))
	249	die(_("unable to resolve HEAD"));
	250	strbuf_reset(&sb);
	251	strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
	252	write_file(sb.buf, 1, "%s\n", sha1_to_hex(rev));
	253	strbuf_reset(&sb);
	254	strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
	255	write_file(sb.buf, 1, "../..\n");
	256
cd2f4713	257	fprintf_ln(stderr, _("Preparing %s (identifier %s)"), path, name);
b979d950 ES	258
b979d950 ES	259	setenv("GIT_CHECKOUT_NEW_WORKTREE", "1", 1);
ae2a3827 ES	260	argv_array_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf);
ae2a3827 ES	261	argv_array_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path);
b979d950 ES	262	memset(&cp, 0, sizeof(cp));
b979d950 ES	263	cp.git_cmd = 1;
80a0548f ES	264	argv_array_push(&cp.args, "checkout");
	265	if (opts->force)
	266	argv_array_push(&cp.args, "--ignore-other-worktrees");
	267	if (opts->detach)
	268	argv_array_push(&cp.args, "--detach");
	269	argv_array_push(&cp.args, refname);
ae2a3827	270	cp.env = child_env.argv;
b979d950 ES	271	ret = run_command(&cp);
	272	if (!ret) {
	273	is_junk = 0;
	274	free(junk_work_tree);
	275	free(junk_git_dir);
	276	junk_work_tree = NULL;
	277	junk_git_dir = NULL;
	278	}
	279	strbuf_reset(&sb);
	280	strbuf_addf(&sb, "%s/locked", sb_repo.buf);
	281	unlink_or_warn(sb.buf);
ae2a3827	282	argv_array_clear(&child_env);
b979d950 ES	283	strbuf_release(&sb);
	284	strbuf_release(&sb_repo);
	285	strbuf_release(&sb_git);
	286	return ret;
	287	}
	288
fc56361f ES	289	static int add(int ac, const char *av, const char prefix)
fc56361f ES	290	{
5dd6e234 ES	291	struct add_opts opts;
5dd6e234 ES	292	const char *new_branch_force = NULL;
fc56361f	293	const char path, branch;
fc56361f	294	struct option options[] = {
5dd6e234 ES	295	OPT__FORCE(&opts.force, N_("checkout <branch> even if already checked out in other worktree")),
5dd6e234 ES	296	OPT_STRING('b', NULL, &opts.new_branch, N_("branch"),
cbdf60fa ES	297	N_("create a new branch")),
	298	OPT_STRING('B', NULL, &new_branch_force, N_("branch"),
	299	N_("create or reset a branch")),
5dd6e234	300	OPT_BOOL(0, "detach", &opts.detach, N_("detach HEAD at named commit")),
fc56361f ES	301	OPT_END()
	302	};
	303
5dd6e234	304	memset(&opts, 0, sizeof(opts));
fc56361f	305	ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
ab0b2c53 ES	306	if (!!opts.detach + !!opts.new_branch + !!new_branch_force > 1)
ab0b2c53 ES	307	die(_("-b, -B, and --detach are mutually exclusive"));
0f4af3b9 ES	308	if (ac < 1 \|\| ac > 2)
0f4af3b9 ES	309	usage_with_options(worktree_usage, options);
fc56361f ES	310
fc56361f ES	311	path = prefix ? prefix_filename(prefix, strlen(prefix), av[0]) : av[0];
0f4af3b9	312	branch = ac < 2 ? "HEAD" : av[1];
fc56361f	313
5dd6e234 ES	314	opts.force_new_branch = !!new_branch_force;
	315	if (opts.force_new_branch)
	316	opts.new_branch = new_branch_force;
eef005dc	317
5c942570	318	if (ac < 2 && !opts.new_branch && !opts.detach) {
1eb07d82 ES	319	int n;
1eb07d82 ES	320	const char *s = worktree_basename(path, &n);
5dd6e234	321	opts.new_branch = xstrndup(s, n);
1eb07d82 ES	322	}
1eb07d82 ES	323
c2842439 ES	324	if (opts.new_branch) {
	325	struct child_process cp;
	326	memset(&cp, 0, sizeof(cp));
	327	cp.git_cmd = 1;
	328	argv_array_push(&cp.args, "branch");
	329	if (opts.force_new_branch)
	330	argv_array_push(&cp.args, "--force");
	331	argv_array_push(&cp.args, opts.new_branch);
	332	argv_array_push(&cp.args, branch);
	333	if (run_command(&cp))
	334	return -1;
	335	branch = opts.new_branch;
	336	}
	337
80a0548f	338	return add_worktree(path, branch, &opts);
fc56361f ES	339	}
fc56361f ES	340
df0b6cfb NTND	341	int cmd_worktree(int ac, const char *av, const char prefix)
	342	{
	343	struct option options[] = {
	344	OPT_END()
	345	};
	346
	347	if (ac < 2)
	348	usage_with_options(worktree_usage, options);
fc56361f ES	349	if (!strcmp(av[1], "add"))
fc56361f ES	350	return add(ac - 1, av + 1, prefix);
df0b6cfb NTND	351	if (!strcmp(av[1], "prune"))
	352	return prune(ac - 1, av + 1, prefix);
	353	usage_with_options(worktree_usage, options);
	354	}