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

#include "cache.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "builtin.h"
#include "reachable.h"
#include "parse-options.h"
#include "progress.h"

static const char * const prune_usage[] = {
	N_("git prune [-n] [-v] [--progress] [--expire <time>] [--] [<head>...]"),
	NULL
};
static int show_only;
static int verbose;
static timestamp_t expire;
static int show_progress = -1;

static int prune_tmp_file(const char *fullpath)
{
	struct stat st;
	if (lstat(fullpath, &st))
		return error("Could not stat '%s'", fullpath);
	if (st.st_mtime > expire)
		return 0;
	if (show_only || verbose)
		printf("Removing stale temporary file %s\n", fullpath);
	if (!show_only)
		unlink_or_warn(fullpath);
	return 0;
}

static int prune_object(const struct object_id *oid, const char *fullpath,
			void *data)
{
	struct stat st;

	/*
	 * Do we know about this object?
	 * It must have been reachable
	 */
	if (lookup_object(oid->hash))
		return 0;

	if (lstat(fullpath, &st)) {
		/* report errors, but do not stop pruning */
		error("Could not stat '%s'", fullpath);
		return 0;
	}
	if (st.st_mtime > expire)
		return 0;
	if (show_only || verbose) {
		enum object_type type = sha1_object_info(oid->hash, NULL);
		printf("%s %s\n", oid_to_hex(oid),
		       (type > 0) ? type_name(type) : "unknown");
	}
	if (!show_only)
		unlink_or_warn(fullpath);
	return 0;
}

static int prune_cruft(const char *basename, const char *path, void *data)
{
	if (starts_with(basename, "tmp_obj_"))
		prune_tmp_file(path);
	else
		fprintf(stderr, "bad sha1 file: %s\n", path);
	return 0;
}

static int prune_subdir(unsigned int nr, const char *path, void *data)
{
	if (!show_only)
		rmdir(path);
	return 0;
}

/*
 * Write errors (particularly out of space) can result in
 * failed temporary packs (and more rarely indexes and other
 * files beginning with "tmp_") accumulating in the object
 * and the pack directories.
 */
static void remove_temporary_files(const char *path)
{
	DIR *dir;
	struct dirent *de;

	dir = opendir(path);
	if (!dir) {
		fprintf(stderr, "Unable to open directory %s\n", path);
		return;
	}
	while ((de = readdir(dir)) != NULL)
		if (starts_with(de->d_name, "tmp_"))
			prune_tmp_file(mkpath("%s/%s", path, de->d_name));
	closedir(dir);
}

int cmd_prune(int argc, const char **argv, const char *prefix)
{
	struct rev_info revs;
	struct progress *progress = NULL;
	int exclude_promisor_objects = 0;
	const struct option options[] = {
		OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
		OPT__VERBOSE(&verbose, N_("report pruned objects")),
		OPT_BOOL(0, "progress", &show_progress, N_("show progress")),
		OPT_EXPIRY_DATE(0, "expire", &expire,
				N_("expire objects older than <time>")),
		OPT_BOOL(0, "exclude-promisor-objects", &exclude_promisor_objects,
			 N_("limit traversal to objects outside promisor packfiles")),
		OPT_END()
	};
	char *s;

	expire = TIME_MAX;
	save_commit_buffer = 0;
	check_replace_refs = 0;
	ref_paranoia = 1;
	init_revisions(&revs, prefix);

	argc = parse_options(argc, argv, prefix, options, prune_usage, 0);

	if (repository_format_precious_objects)
		die(_("cannot prune in a precious-objects repo"));

	while (argc--) {
		struct object_id oid;
		const char *name = *argv++;

		if (!get_oid(name, &oid)) {
			struct object *object = parse_object_or_die(&oid,
								    name);
			add_pending_object(&revs, object, "");
		}
		else
			die("unrecognized argument: %s", name);
	}

	if (show_progress == -1)
		show_progress = isatty(2);
	if (show_progress)
		progress = start_delayed_progress(_("Checking connectivity"), 0);
	if (exclude_promisor_objects) {
		fetch_if_missing = 0;
		revs.exclude_promisor_objects = 1;
	}

	mark_reachable_objects(&revs, 1, expire, progress);
	stop_progress(&progress);
	for_each_loose_file_in_objdir(get_object_directory(), prune_object,
				      prune_cruft, prune_subdir, NULL);

	prune_packed_objects(show_only ? PRUNE_PACKED_DRY_RUN : 0);
	remove_temporary_files(get_object_directory());
	s = mkpathdup("%s/pack", get_object_directory());
	remove_temporary_files(s);
	free(s);

	if (is_repository_shallow())
		prune_shallow(show_only);

	return 0;
}
Commit	Line	Data
ba84a797	1	#include "cache.h"
ba84a797	2	#include "commit.h"
ba84a797 LT	3	#include "diff.h"
	4	#include "revision.h"
	5	#include "builtin.h"
94421474	6	#include "reachable.h"
629de472	7	#include "parse-options.h"
dc347195	8	#include "progress.h"
ba84a797	9
629de472	10	static const char * const prune_usage[] = {
1a1fc2d5	11	N_("git prune [-n] [-v] [--progress] [--expire <time>] [--] [<head>...]"),
629de472 MB	12	NULL
629de472 MB	13	};
96f1e58f	14	static int show_only;
b35ddf41	15	static int verbose;
dddbad72	16	static timestamp_t expire;
bf0a59b3	17	static int show_progress = -1;
ba84a797	18
4454e9cb	19	static int prune_tmp_file(const char *fullpath)
0e8316cc	20	{
cbf731ed AS	21	struct stat st;
	22	if (lstat(fullpath, &st))
	23	return error("Could not stat '%s'", fullpath);
	24	if (st.st_mtime > expire)
	25	return 0;
90b29cb7 BC	26	if (show_only \|\| verbose)
90b29cb7 BC	27	printf("Removing stale temporary file %s\n", fullpath);
0e8316cc	28	if (!show_only)
691f1a28	29	unlink_or_warn(fullpath);
0e8316cc BC	30	return 0;
	31	}
	32
76c1d9a0	33	static int prune_object(const struct object_id oid, const char fullpath,
27e1e22d	34	void *data)
ba84a797	35	{
cbf731ed	36	struct stat st;
27e1e22d JK	37
	38	/*
	39	* Do we know about this object?
	40	* It must have been reachable
	41	*/
76c1d9a0	42	if (lookup_object(oid->hash))
27e1e22d JK	43	return 0;
	44
	45	if (lstat(fullpath, &st)) {
	46	/* report errors, but do not stop pruning */
	47	error("Could not stat '%s'", fullpath);
	48	return 0;
	49	}
cbf731ed AS	50	if (st.st_mtime > expire)
cbf731ed AS	51	return 0;
b35ddf41	52	if (show_only \|\| verbose) {
76c1d9a0	53	enum object_type type = sha1_object_info(oid->hash, NULL);
76c1d9a0	54	printf("%s %s\n", oid_to_hex(oid),
debca9d2	55	(type > 0) ? type_name(type) : "unknown");
b35ddf41 MG	56	}
b35ddf41 MG	57	if (!show_only)
691f1a28	58	unlink_or_warn(fullpath);
ba84a797 LT	59	return 0;
	60	}
	61
27e1e22d	62	static int prune_cruft(const char basename, const char path, void *data)
ba84a797	63	{
27e1e22d JK	64	if (starts_with(basename, "tmp_obj_"))
	65	prune_tmp_file(path);
	66	else
	67	fprintf(stderr, "bad sha1 file: %s\n", path);
ba84a797 LT	68	return 0;
	69	}
	70
70c49050	71	static int prune_subdir(unsigned int nr, const char path, void data)
ba84a797	72	{
27e1e22d JK	73	if (!show_only)
	74	rmdir(path);
	75	return 0;
ba84a797 LT	76	}
ba84a797 LT	77
8464010f DST	78	/*
	79	* Write errors (particularly out of space) can result in
	80	* failed temporary packs (and more rarely indexes and other
9517e6b8	81	* files beginning with "tmp_") accumulating in the object
db87e396	82	* and the pack directories.
8464010f	83	*/
db87e396	84	static void remove_temporary_files(const char *path)
8464010f DST	85	{
	86	DIR *dir;
	87	struct dirent *de;
8464010f	88
db87e396	89	dir = opendir(path);
8464010f	90	if (!dir) {
db87e396	91	fprintf(stderr, "Unable to open directory %s\n", path);
8464010f DST	92	return;
8464010f DST	93	}
0e8316cc	94	while ((de = readdir(dir)) != NULL)
59556548	95	if (starts_with(de->d_name, "tmp_"))
4454e9cb	96	prune_tmp_file(mkpath("%s/%s", path, de->d_name));
8464010f DST	97	closedir(dir);
	98	}
	99
a633fca0	100	int cmd_prune(int argc, const char *argv, const char prefix)
ba84a797	101	{
24304816	102	struct rev_info revs;
bf0a59b3	103	struct progress *progress = NULL;
0c16cd49	104	int exclude_promisor_objects = 0;
629de472	105	const struct option options[] = {
8f5b7281 NTND	106	OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
	107	OPT__VERBOSE(&verbose, N_("report pruned objects")),
	108	OPT_BOOL(0, "progress", &show_progress, N_("show progress")),
27ec394a JH	109	OPT_EXPIRY_DATE(0, "expire", &expire,
27ec394a JH	110	N_("expire objects older than <time>")),
0c16cd49 JT	111	OPT_BOOL(0, "exclude-promisor-objects", &exclude_promisor_objects,
0c16cd49 JT	112	N_("limit traversal to objects outside promisor packfiles")),
629de472 MB	113	OPT_END()
629de472 MB	114	};
db87e396	115	char *s;
ba84a797	116
dddbad72	117	expire = TIME_MAX;
16157b80	118	save_commit_buffer = 0;
afc711b8	119	check_replace_refs = 0;
ff4056bb	120	ref_paranoia = 1;
a633fca0	121	init_revisions(&revs, prefix);
ba84a797	122
37782920	123	argc = parse_options(argc, argv, prefix, options, prune_usage, 0);
23af91d1	124
067fbd41 JK	125	if (repository_format_precious_objects)
	126	die(_("cannot prune in a precious-objects repo"));
	127
fe308f53	128	while (argc--) {
af6730e7	129	struct object_id oid;
fe308f53 JH	130	const char name = argv++;
fe308f53 JH	131
af6730e7	132	if (!get_oid(name, &oid)) {
c251c83d	133	struct object *object = parse_object_or_die(&oid,
c251c83d	134	name);
fe308f53 JH	135	add_pending_object(&revs, object, "");
	136	}
	137	else
	138	die("unrecognized argument: %s", name);
	139	}
bf0a59b3 JK	140
	141	if (show_progress == -1)
	142	show_progress = isatty(2);
	143	if (show_progress)
8aade107	144	progress = start_delayed_progress(_("Checking connectivity"), 0);
0c16cd49 JT	145	if (exclude_promisor_objects) {
	146	fetch_if_missing = 0;
	147	revs.exclude_promisor_objects = 1;
	148	}
bf0a59b3	149
d3038d22	150	mark_reachable_objects(&revs, 1, expire, progress);
dc347195	151	stop_progress(&progress);
27e1e22d JK	152	for_each_loose_file_in_objdir(get_object_directory(), prune_object,
27e1e22d JK	153	prune_cruft, prune_subdir, NULL);
ba84a797	154
af0b4a3b	155	prune_packed_objects(show_only ? PRUNE_PACKED_DRY_RUN : 0);
db87e396	156	remove_temporary_files(get_object_directory());
4e2d094d	157	s = mkpathdup("%s/pack", get_object_directory());
db87e396 BC	158	remove_temporary_files(s);
db87e396 BC	159	free(s);
eab3296c NTND	160
	161	if (is_repository_shallow())
	162	prune_shallow(show_only);
	163
ba84a797 LT	164	return 0;
ba84a797 LT	165	}