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

/*
 * git gc builtin command
 *
 * Cleanup unreachable files and optimize the repository.
 *
 * Copyright (c) 2007 James Bowes
 *
 * Based on git-gc.sh, which is
 *
 * Copyright (c) 2006 Shawn O. Pearce
 */

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

#define FAILED_RUN "failed to run %s"

static const char * const builtin_gc_usage[] = {
	N_("git gc [options]"),
	NULL
};

static int pack_refs = 1;
static int aggressive_window = 250;
static int gc_auto_threshold = 6700;
static int gc_auto_pack_limit = 50;
static const char *prune_expire = "2.weeks.ago";

static struct argv_array pack_refs_cmd = ARGV_ARRAY_INIT;
static struct argv_array reflog = ARGV_ARRAY_INIT;
static struct argv_array repack = ARGV_ARRAY_INIT;
static struct argv_array prune = ARGV_ARRAY_INIT;
static struct argv_array rerere = ARGV_ARRAY_INIT;

static char *pidfile;

static void remove_pidfile(void)
{
	if (pidfile)
		unlink(pidfile);
}

static void remove_pidfile_on_signal(int signo)
{
	remove_pidfile();
	sigchain_pop(signo);
	raise(signo);
}

static int gc_config(const char *var, const char *value, void *cb)
{
	if (!strcmp(var, "gc.packrefs")) {
		if (value && !strcmp(value, "notbare"))
			pack_refs = -1;
		else
			pack_refs = git_config_bool(var, value);
		return 0;
	}
	if (!strcmp(var, "gc.aggressivewindow")) {
		aggressive_window = git_config_int(var, value);
		return 0;
	}
	if (!strcmp(var, "gc.auto")) {
		gc_auto_threshold = git_config_int(var, value);
		return 0;
	}
	if (!strcmp(var, "gc.autopacklimit")) {
		gc_auto_pack_limit = git_config_int(var, value);
		return 0;
	}
	if (!strcmp(var, "gc.pruneexpire")) {
		if (value && strcmp(value, "now")) {
			unsigned long now = approxidate("now");
			if (approxidate(value) >= now)
				return error(_("Invalid %s: '%s'"), var, value);
		}
		return git_config_string(&prune_expire, var, value);
	}
	return git_default_config(var, value, cb);
}

static int too_many_loose_objects(void)
{
	/*
	 * Quickly check if a "gc" is needed, by estimating how
	 * many loose objects there are.  Because SHA-1 is evenly
	 * distributed, we can check only one and get a reasonable
	 * estimate.
	 */
	char path[PATH_MAX];
	const char *objdir = get_object_directory();
	DIR *dir;
	struct dirent *ent;
	int auto_threshold;
	int num_loose = 0;
	int needed = 0;

	if (gc_auto_threshold <= 0)
		return 0;

	if (sizeof(path) <= snprintf(path, sizeof(path), "%s/17", objdir)) {
		warning(_("insanely long object directory %.*s"), 50, objdir);
		return 0;
	}
	dir = opendir(path);
	if (!dir)
		return 0;

	auto_threshold = (gc_auto_threshold + 255) / 256;
	while ((ent = readdir(dir)) != NULL) {
		if (strspn(ent->d_name, "0123456789abcdef") != 38 ||
		    ent->d_name[38] != '\0')
			continue;
		if (++num_loose > auto_threshold) {
			needed = 1;
			break;
		}
	}
	closedir(dir);
	return needed;
}

static int too_many_packs(void)
{
	struct packed_git *p;
	int cnt;

	if (gc_auto_pack_limit <= 0)
		return 0;

	prepare_packed_git();
	for (cnt = 0, p = packed_git; p; p = p->next) {
		if (!p->pack_local)
			continue;
		if (p->pack_keep)
			continue;
		/*
		 * Perhaps check the size of the pack and count only
		 * very small ones here?
		 */
		cnt++;
	}
	return gc_auto_pack_limit <= cnt;
}

static void add_repack_all_option(void)
{
	if (prune_expire && !strcmp(prune_expire, "now"))
		argv_array_push(&repack, "-a");
	else {
		argv_array_push(&repack, "-A");
		if (prune_expire)
			argv_array_pushf(&repack, "--unpack-unreachable=%s", prune_expire);
	}
}

static int need_to_gc(void)
{
	/*
	 * Setting gc.auto to 0 or negative can disable the
	 * automatic gc.
	 */
	if (gc_auto_threshold <= 0)
		return 0;

	/*
	 * If there are too many loose objects, but not too many
	 * packs, we run "repack -d -l".  If there are too many packs,
	 * we run "repack -A -d -l".  Otherwise we tell the caller
	 * there is no need.
	 */
	if (too_many_packs())
		add_repack_all_option();
	else if (!too_many_loose_objects())
		return 0;

	if (run_hook(NULL, "pre-auto-gc", NULL))
		return 0;
	return 1;
}

/* return NULL on success, else hostname running the gc */
static const char *lock_repo_for_gc(int force, pid_t* ret_pid)
{
	static struct lock_file lock;
	static char locking_host[128];
	char my_host[128];
	struct strbuf sb = STRBUF_INIT;
	struct stat st;
	uintmax_t pid;
	FILE *fp;
	int fd, should_exit;

	if (pidfile)
		/* already locked */
		return NULL;

	if (gethostname(my_host, sizeof(my_host)))
		strcpy(my_host, "unknown");

	fd = hold_lock_file_for_update(&lock, git_path("gc.pid"),
				       LOCK_DIE_ON_ERROR);
	if (!force) {
		fp = fopen(git_path("gc.pid"), "r");
		memset(locking_host, 0, sizeof(locking_host));
		should_exit =
			fp != NULL &&
			!fstat(fileno(fp), &st) &&
			/*
			 * 12 hour limit is very generous as gc should
			 * never take that long. On the other hand we
			 * don't really need a strict limit here,
			 * running gc --auto one day late is not a big
			 * problem. --force can be used in manual gc
			 * after the user verifies that no gc is
			 * running.
			 */
			time(NULL) - st.st_mtime <= 12 * 3600 &&
			fscanf(fp, "%"PRIuMAX" %127c", &pid, locking_host) == 2 &&
			/* be gentle to concurrent "gc" on remote hosts */
			(strcmp(locking_host, my_host) || !kill(pid, 0) || errno == EPERM);
		if (fp != NULL)
			fclose(fp);
		if (should_exit) {
			if (fd >= 0)
				rollback_lock_file(&lock);
			*ret_pid = pid;
			return locking_host;
		}
	}

	strbuf_addf(&sb, "%"PRIuMAX" %s",
		    (uintmax_t) getpid(), my_host);
	write_in_full(fd, sb.buf, sb.len);
	strbuf_release(&sb);
	commit_lock_file(&lock);

	pidfile = git_pathdup("gc.pid");
	sigchain_push_common(remove_pidfile_on_signal);
	atexit(remove_pidfile);

	return NULL;
}

int cmd_gc(int argc, const char **argv, const char *prefix)
{
	int aggressive = 0;
	int auto_gc = 0;
	int quiet = 0;
	int force = 0;
	const char *name;
	pid_t pid;

	struct option builtin_gc_options[] = {
		OPT__QUIET(&quiet, N_("suppress progress reporting")),
		{ OPTION_STRING, 0, "prune", &prune_expire, N_("date"),
			N_("prune unreferenced objects"),
			PARSE_OPT_OPTARG, NULL, (intptr_t)prune_expire },
		OPT_BOOL(0, "aggressive", &aggressive, N_("be more thorough (increased runtime)")),
		OPT_BOOL(0, "auto", &auto_gc, N_("enable auto-gc mode")),
		OPT_BOOL(0, "force", &force, N_("force running gc even if there may be another gc running")),
		OPT_END()
	};

	if (argc == 2 && !strcmp(argv[1], "-h"))
		usage_with_options(builtin_gc_usage, builtin_gc_options);

	argv_array_pushl(&pack_refs_cmd, "pack-refs", "--all", "--prune", NULL);
	argv_array_pushl(&reflog, "reflog", "expire", "--all", NULL);
	argv_array_pushl(&repack, "repack", "-d", "-l", NULL);
	argv_array_pushl(&prune, "prune", "--expire", NULL );
	argv_array_pushl(&rerere, "rerere", "gc", NULL);

	git_config(gc_config, NULL);

	if (pack_refs < 0)
		pack_refs = !is_bare_repository();

	argc = parse_options(argc, argv, prefix, builtin_gc_options,
			     builtin_gc_usage, 0);
	if (argc > 0)
		usage_with_options(builtin_gc_usage, builtin_gc_options);

	if (aggressive) {
		argv_array_push(&repack, "-f");
		argv_array_push(&repack, "--depth=250");
		if (aggressive_window > 0)
			argv_array_pushf(&repack, "--window=%d", aggressive_window);
	}
	if (quiet)
		argv_array_push(&repack, "-q");

	if (auto_gc) {
		/*
		 * Auto-gc should be least intrusive as possible.
		 */
		if (!need_to_gc())
			return 0;
		if (!quiet)
			fprintf(stderr,
					_("Auto packing the repository for optimum performance. You may also\n"
					"run \"git gc\" manually. See "
					"\"git help gc\" for more information.\n"));
	} else
		add_repack_all_option();

	name = lock_repo_for_gc(force, &pid);
	if (name) {
		if (auto_gc)
			return 0; /* be quiet on --auto */
		die(_("gc is already running on machine '%s' pid %"PRIuMAX" (use --force if not)"),
		    name, (uintmax_t)pid);
	}

	if (pack_refs && run_command_v_opt(pack_refs_cmd.argv, RUN_GIT_CMD))
		return error(FAILED_RUN, pack_refs_cmd.argv[0]);

	if (run_command_v_opt(reflog.argv, RUN_GIT_CMD))
		return error(FAILED_RUN, reflog.argv[0]);

	if (run_command_v_opt(repack.argv, RUN_GIT_CMD))
		return error(FAILED_RUN, repack.argv[0]);

	if (prune_expire) {
		argv_array_push(&prune, prune_expire);
		if (quiet)
			argv_array_push(&prune, "--no-progress");
		if (run_command_v_opt(prune.argv, RUN_GIT_CMD))
			return error(FAILED_RUN, prune.argv[0]);
	}

	if (run_command_v_opt(rerere.argv, RUN_GIT_CMD))
		return error(FAILED_RUN, rerere.argv[0]);

	if (auto_gc && too_many_loose_objects())
		warning(_("There are too many unreachable loose objects; "
			"run 'git prune' to remove them."));

	return 0;
}
Commit	Line	Data
6757ada4 JB	1	/*
	2	* git gc builtin command
	3	*
	4	* Cleanup unreachable files and optimize the repository.
	5	*
	6	* Copyright (c) 2007 James Bowes
	7	*
	8	* Based on git-gc.sh, which is
	9	*
	10	* Copyright (c) 2006 Shawn O. Pearce
	11	*/
	12
baffc0e7	13	#include "builtin.h"
6757ada4	14	#include "cache.h"
44c637c8	15	#include "parse-options.h"
6757ada4	16	#include "run-command.h"
4c5baf02	17	#include "sigchain.h"
234587fc	18	#include "argv-array.h"
eab3296c	19	#include "commit.h"
6757ada4 JB	20
	21	#define FAILED_RUN "failed to run %s"
	22
44c637c8	23	static const char * const builtin_gc_usage[] = {
6705c162	24	N_("git gc [options]"),
44c637c8 JB	25	NULL
44c637c8 JB	26	};
6757ada4	27
56752391	28	static int pack_refs = 1;
1c192f34	29	static int aggressive_window = 250;
2c3c4399	30	static int gc_auto_threshold = 6700;
97063974	31	static int gc_auto_pack_limit = 50;
d3154b44	32	static const char *prune_expire = "2.weeks.ago";
6757ada4	33
234587fc JK	34	static struct argv_array pack_refs_cmd = ARGV_ARRAY_INIT;
	35	static struct argv_array reflog = ARGV_ARRAY_INIT;
	36	static struct argv_array repack = ARGV_ARRAY_INIT;
	37	static struct argv_array prune = ARGV_ARRAY_INIT;
	38	static struct argv_array rerere = ARGV_ARRAY_INIT;
6757ada4	39
4c5baf02 JN	40	static char *pidfile;
	41
	42	static void remove_pidfile(void)
	43	{
	44	if (pidfile)
	45	unlink(pidfile);
	46	}
	47
	48	static void remove_pidfile_on_signal(int signo)
	49	{
	50	remove_pidfile();
	51	sigchain_pop(signo);
	52	raise(signo);
	53	}
	54
ef90d6d4	55	static int gc_config(const char var, const char value, void *cb)
6757ada4 JB	56	{
6757ada4 JB	57	if (!strcmp(var, "gc.packrefs")) {
c5e5a2c0	58	if (value && !strcmp(value, "notbare"))
6757ada4 JB	59	pack_refs = -1;
	60	else
	61	pack_refs = git_config_bool(var, value);
	62	return 0;
	63	}
0d7566a5 TT	64	if (!strcmp(var, "gc.aggressivewindow")) {
	65	aggressive_window = git_config_int(var, value);
	66	return 0;
	67	}
2c3c4399 JH	68	if (!strcmp(var, "gc.auto")) {
	69	gc_auto_threshold = git_config_int(var, value);
	70	return 0;
	71	}
17815501 JH	72	if (!strcmp(var, "gc.autopacklimit")) {
	73	gc_auto_pack_limit = git_config_int(var, value);
	74	return 0;
	75	}
25ee9731	76	if (!strcmp(var, "gc.pruneexpire")) {
d3154b44	77	if (value && strcmp(value, "now")) {
25ee9731 JS	78	unsigned long now = approxidate("now");
25ee9731 JS	79	if (approxidate(value) >= now)
fea6128b	80	return error(_("Invalid %s: '%s'"), var, value);
25ee9731	81	}
d3154b44	82	return git_config_string(&prune_expire, var, value);
25ee9731	83	}
ef90d6d4	84	return git_default_config(var, value, cb);
6757ada4 JB	85	}
6757ada4 JB	86
a087cc98	87	static int too_many_loose_objects(void)
2c3c4399 JH	88	{
	89	/*
	90	* Quickly check if a "gc" is needed, by estimating how
	91	* many loose objects there are. Because SHA-1 is evenly
	92	* distributed, we can check only one and get a reasonable
	93	* estimate.
	94	*/
	95	char path[PATH_MAX];
	96	const char *objdir = get_object_directory();
	97	DIR *dir;
	98	struct dirent *ent;
	99	int auto_threshold;
	100	int num_loose = 0;
	101	int needed = 0;
	102
17815501 JH	103	if (gc_auto_threshold <= 0)
	104	return 0;
	105
2c3c4399	106	if (sizeof(path) <= snprintf(path, sizeof(path), "%s/17", objdir)) {
fea6128b	107	warning(_("insanely long object directory %.*s"), 50, objdir);
2c3c4399 JH	108	return 0;
	109	}
	110	dir = opendir(path);
	111	if (!dir)
	112	return 0;
	113
	114	auto_threshold = (gc_auto_threshold + 255) / 256;
	115	while ((ent = readdir(dir)) != NULL) {
	116	if (strspn(ent->d_name, "0123456789abcdef") != 38 \|\|
	117	ent->d_name[38] != '\0')
	118	continue;
	119	if (++num_loose > auto_threshold) {
	120	needed = 1;
	121	break;
	122	}
	123	}
	124	closedir(dir);
	125	return needed;
	126	}
	127
17815501 JH	128	static int too_many_packs(void)
	129	{
	130	struct packed_git *p;
	131	int cnt;
	132
	133	if (gc_auto_pack_limit <= 0)
	134	return 0;
	135
	136	prepare_packed_git();
	137	for (cnt = 0, p = packed_git; p; p = p->next) {
17815501 JH	138	if (!p->pack_local)
17815501 JH	139	continue;
01af249f	140	if (p->pack_keep)
17815501 JH	141	continue;
	142	/*
	143	* Perhaps check the size of the pack and count only
	144	* very small ones here?
	145	*/
	146	cnt++;
	147	}
	148	return gc_auto_pack_limit <= cnt;
	149	}
	150
7e52f566 JK	151	static void add_repack_all_option(void)
	152	{
	153	if (prune_expire && !strcmp(prune_expire, "now"))
234587fc	154	argv_array_push(&repack, "-a");
7e52f566	155	else {
234587fc JK	156	argv_array_push(&repack, "-A");
	157	if (prune_expire)
	158	argv_array_pushf(&repack, "--unpack-unreachable=%s", prune_expire);
7e52f566 JK	159	}
	160	}
	161
a087cc98 JH	162	static int need_to_gc(void)
	163	{
	164	/*
b14d255b BC	165	* Setting gc.auto to 0 or negative can disable the
b14d255b BC	166	* automatic gc.
a087cc98	167	*/
b14d255b	168	if (gc_auto_threshold <= 0)
95143f9e JH	169	return 0;
95143f9e JH	170
17815501 JH	171	/*
	172	* If there are too many loose objects, but not too many
	173	* packs, we run "repack -d -l". If there are too many packs,
	174	* we run "repack -A -d -l". Otherwise we tell the caller
	175	* there is no need.
	176	*/
17815501	177	if (too_many_packs())
7e52f566	178	add_repack_all_option();
17815501 JH	179	else if (!too_many_loose_objects())
17815501 JH	180	return 0;
bde30540	181
ae98a008	182	if (run_hook(NULL, "pre-auto-gc", NULL))
bde30540	183	return 0;
95143f9e	184	return 1;
a087cc98 JH	185	}
a087cc98 JH	186
64a99eb4 NTND	187	/* return NULL on success, else hostname running the gc */
	188	static const char lock_repo_for_gc(int force, pid_t ret_pid)
	189	{
	190	static struct lock_file lock;
	191	static char locking_host[128];
	192	char my_host[128];
	193	struct strbuf sb = STRBUF_INIT;
	194	struct stat st;
	195	uintmax_t pid;
	196	FILE *fp;
	197	int fd, should_exit;
	198
4c5baf02 JN	199	if (pidfile)
	200	/* already locked */
	201	return NULL;
	202
64a99eb4 NTND	203	if (gethostname(my_host, sizeof(my_host)))
	204	strcpy(my_host, "unknown");
	205
	206	fd = hold_lock_file_for_update(&lock, git_path("gc.pid"),
	207	LOCK_DIE_ON_ERROR);
	208	if (!force) {
	209	fp = fopen(git_path("gc.pid"), "r");
	210	memset(locking_host, 0, sizeof(locking_host));
	211	should_exit =
	212	fp != NULL &&
	213	!fstat(fileno(fp), &st) &&
	214	/*
	215	* 12 hour limit is very generous as gc should
	216	* never take that long. On the other hand we
	217	* don't really need a strict limit here,
	218	* running gc --auto one day late is not a big
	219	* problem. --force can be used in manual gc
	220	* after the user verifies that no gc is
	221	* running.
	222	*/
	223	time(NULL) - st.st_mtime <= 12 * 3600 &&
	224	fscanf(fp, "%"PRIuMAX" %127c", &pid, locking_host) == 2 &&
	225	/* be gentle to concurrent "gc" on remote hosts */
ed7eda8b	226	(strcmp(locking_host, my_host) \|\| !kill(pid, 0) \|\| errno == EPERM);
64a99eb4 NTND	227	if (fp != NULL)
	228	fclose(fp);
	229	if (should_exit) {
	230	if (fd >= 0)
	231	rollback_lock_file(&lock);
	232	*ret_pid = pid;
	233	return locking_host;
	234	}
	235	}
	236
	237	strbuf_addf(&sb, "%"PRIuMAX" %s",
	238	(uintmax_t) getpid(), my_host);
	239	write_in_full(fd, sb.buf, sb.len);
	240	strbuf_release(&sb);
	241	commit_lock_file(&lock);
	242
4c5baf02 JN	243	pidfile = git_pathdup("gc.pid");
	244	sigchain_push_common(remove_pidfile_on_signal);
	245	atexit(remove_pidfile);
	246
64a99eb4 NTND	247	return NULL;
	248	}
	249
6757ada4 JB	250	int cmd_gc(int argc, const char *argv, const char prefix)
6757ada4 JB	251	{
44c637c8	252	int aggressive = 0;
2c3c4399	253	int auto_gc = 0;
a0c14cbb	254	int quiet = 0;
64a99eb4 NTND	255	int force = 0;
	256	const char *name;
	257	pid_t pid;
6757ada4	258
44c637c8	259	struct option builtin_gc_options[] = {
6705c162 NTND	260	OPT__QUIET(&quiet, N_("suppress progress reporting")),
	261	{ OPTION_STRING, 0, "prune", &prune_expire, N_("date"),
	262	N_("prune unreferenced objects"),
58e9d9d4	263	PARSE_OPT_OPTARG, NULL, (intptr_t)prune_expire },
d5d09d47 SB	264	OPT_BOOL(0, "aggressive", &aggressive, N_("be more thorough (increased runtime)")),
d5d09d47 SB	265	OPT_BOOL(0, "auto", &auto_gc, N_("enable auto-gc mode")),
64a99eb4	266	OPT_BOOL(0, "force", &force, N_("force running gc even if there may be another gc running")),
44c637c8 JB	267	OPT_END()
	268	};
	269
0c8151b6 NTND	270	if (argc == 2 && !strcmp(argv[1], "-h"))
	271	usage_with_options(builtin_gc_usage, builtin_gc_options);
	272
234587fc JK	273	argv_array_pushl(&pack_refs_cmd, "pack-refs", "--all", "--prune", NULL);
	274	argv_array_pushl(&reflog, "reflog", "expire", "--all", NULL);
	275	argv_array_pushl(&repack, "repack", "-d", "-l", NULL);
	276	argv_array_pushl(&prune, "prune", "--expire", NULL );
	277	argv_array_pushl(&rerere, "rerere", "gc", NULL);
	278
ef90d6d4	279	git_config(gc_config, NULL);
6757ada4 JB	280
	281	if (pack_refs < 0)
	282	pack_refs = !is_bare_repository();
	283
37782920 SB	284	argc = parse_options(argc, argv, prefix, builtin_gc_options,
37782920 SB	285	builtin_gc_usage, 0);
44c637c8 JB	286	if (argc > 0)
	287	usage_with_options(builtin_gc_usage, builtin_gc_options);
	288
	289	if (aggressive) {
234587fc JK	290	argv_array_push(&repack, "-f");
	291	argv_array_push(&repack, "--depth=250");
	292	if (aggressive_window > 0)
	293	argv_array_pushf(&repack, "--window=%d", aggressive_window);
6757ada4	294	}
a0c14cbb	295	if (quiet)
234587fc	296	argv_array_push(&repack, "-q");
6757ada4	297
2c3c4399 JH	298	if (auto_gc) {
	299	/*
	300	* Auto-gc should be least intrusive as possible.
	301	*/
2c3c4399 JH	302	if (!need_to_gc())
2c3c4399 JH	303	return 0;
df995c7d	304	if (!quiet)
f6908ae8 ÆAB	305	fprintf(stderr,
	306	_("Auto packing the repository for optimum performance. You may also\n"
	307	"run \"git gc\" manually. See "
daab4eea	308	"\"git help gc\" for more information.\n"));
a37cce3b	309	} else
7e52f566	310	add_repack_all_option();
2c3c4399	311
64a99eb4 NTND	312	name = lock_repo_for_gc(force, &pid);
	313	if (name) {
	314	if (auto_gc)
	315	return 0; /* be quiet on --auto */
	316	die(_("gc is already running on machine '%s' pid %"PRIuMAX" (use --force if not)"),
	317	name, (uintmax_t)pid);
	318	}
	319
234587fc JK	320	if (pack_refs && run_command_v_opt(pack_refs_cmd.argv, RUN_GIT_CMD))
234587fc JK	321	return error(FAILED_RUN, pack_refs_cmd.argv[0]);
6757ada4	322
234587fc JK	323	if (run_command_v_opt(reflog.argv, RUN_GIT_CMD))
234587fc JK	324	return error(FAILED_RUN, reflog.argv[0]);
6757ada4	325
234587fc JK	326	if (run_command_v_opt(repack.argv, RUN_GIT_CMD))
234587fc JK	327	return error(FAILED_RUN, repack.argv[0]);
6757ada4	328
58e9d9d4	329	if (prune_expire) {
234587fc	330	argv_array_push(&prune, prune_expire);
bf0a59b3	331	if (quiet)
234587fc JK	332	argv_array_push(&prune, "--no-progress");
	333	if (run_command_v_opt(prune.argv, RUN_GIT_CMD))
	334	return error(FAILED_RUN, prune.argv[0]);
58e9d9d4	335	}
6757ada4	336
234587fc JK	337	if (run_command_v_opt(rerere.argv, RUN_GIT_CMD))
234587fc JK	338	return error(FAILED_RUN, rerere.argv[0]);
6757ada4	339
a087cc98	340	if (auto_gc && too_many_loose_objects())
fea6128b ÆAB	341	warning(_("There are too many unreachable loose objects; "
fea6128b ÆAB	342	"run 'git prune' to remove them."));
a087cc98	343
6757ada4 JB	344	return 0;
6757ada4 JB	345	}