[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"
#include "object-store.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(the_repository, 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 = oid_object_info(the_repository, oid,
							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;
	read_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(the_repository))
		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"
cbd53a21	9	#include "object-store.h"
ba84a797	10
629de472	11	static const char * const prune_usage[] = {
1a1fc2d5	12	N_("git prune [-n] [-v] [--progress] [--expire <time>] [--] [<head>...]"),
629de472 MB	13	NULL
629de472 MB	14	};
96f1e58f	15	static int show_only;
b35ddf41	16	static int verbose;
dddbad72	17	static timestamp_t expire;
bf0a59b3	18	static int show_progress = -1;
ba84a797	19
4454e9cb	20	static int prune_tmp_file(const char *fullpath)
0e8316cc	21	{
cbf731ed AS	22	struct stat st;
	23	if (lstat(fullpath, &st))
	24	return error("Could not stat '%s'", fullpath);
	25	if (st.st_mtime > expire)
	26	return 0;
90b29cb7 BC	27	if (show_only \|\| verbose)
90b29cb7 BC	28	printf("Removing stale temporary file %s\n", fullpath);
0e8316cc	29	if (!show_only)
691f1a28	30	unlink_or_warn(fullpath);
0e8316cc BC	31	return 0;
	32	}
	33
76c1d9a0	34	static int prune_object(const struct object_id oid, const char fullpath,
27e1e22d	35	void *data)
ba84a797	36	{
cbf731ed	37	struct stat st;
27e1e22d JK	38
	39	/*
	40	* Do we know about this object?
	41	* It must have been reachable
	42	*/
5abddd1e	43	if (lookup_object(the_repository, oid->hash))
27e1e22d JK	44	return 0;
	45
	46	if (lstat(fullpath, &st)) {
	47	/* report errors, but do not stop pruning */
	48	error("Could not stat '%s'", fullpath);
	49	return 0;
	50	}
cbf731ed AS	51	if (st.st_mtime > expire)
cbf731ed AS	52	return 0;
b35ddf41	53	if (show_only \|\| verbose) {
0df8e965 SB	54	enum object_type type = oid_object_info(the_repository, oid,
0df8e965 SB	55	NULL);
76c1d9a0	56	printf("%s %s\n", oid_to_hex(oid),
debca9d2	57	(type > 0) ? type_name(type) : "unknown");
b35ddf41 MG	58	}
b35ddf41 MG	59	if (!show_only)
691f1a28	60	unlink_or_warn(fullpath);
ba84a797 LT	61	return 0;
	62	}
	63
27e1e22d	64	static int prune_cruft(const char basename, const char path, void *data)
ba84a797	65	{
27e1e22d JK	66	if (starts_with(basename, "tmp_obj_"))
	67	prune_tmp_file(path);
	68	else
	69	fprintf(stderr, "bad sha1 file: %s\n", path);
ba84a797 LT	70	return 0;
	71	}
	72
70c49050	73	static int prune_subdir(unsigned int nr, const char path, void data)
ba84a797	74	{
27e1e22d JK	75	if (!show_only)
	76	rmdir(path);
	77	return 0;
ba84a797 LT	78	}
ba84a797 LT	79
8464010f DST	80	/*
	81	* Write errors (particularly out of space) can result in
	82	* failed temporary packs (and more rarely indexes and other
9517e6b8	83	* files beginning with "tmp_") accumulating in the object
db87e396	84	* and the pack directories.
8464010f	85	*/
db87e396	86	static void remove_temporary_files(const char *path)
8464010f DST	87	{
	88	DIR *dir;
	89	struct dirent *de;
8464010f	90
db87e396	91	dir = opendir(path);
8464010f	92	if (!dir) {
db87e396	93	fprintf(stderr, "Unable to open directory %s\n", path);
8464010f DST	94	return;
8464010f DST	95	}
0e8316cc	96	while ((de = readdir(dir)) != NULL)
59556548	97	if (starts_with(de->d_name, "tmp_"))
4454e9cb	98	prune_tmp_file(mkpath("%s/%s", path, de->d_name));
8464010f DST	99	closedir(dir);
	100	}
	101
a633fca0	102	int cmd_prune(int argc, const char *argv, const char prefix)
ba84a797	103	{
24304816	104	struct rev_info revs;
bf0a59b3	105	struct progress *progress = NULL;
0c16cd49	106	int exclude_promisor_objects = 0;
629de472	107	const struct option options[] = {
8f5b7281 NTND	108	OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
	109	OPT__VERBOSE(&verbose, N_("report pruned objects")),
	110	OPT_BOOL(0, "progress", &show_progress, N_("show progress")),
27ec394a JH	111	OPT_EXPIRY_DATE(0, "expire", &expire,
27ec394a JH	112	N_("expire objects older than <time>")),
0c16cd49 JT	113	OPT_BOOL(0, "exclude-promisor-objects", &exclude_promisor_objects,
0c16cd49 JT	114	N_("limit traversal to objects outside promisor packfiles")),
629de472 MB	115	OPT_END()
629de472 MB	116	};
db87e396	117	char *s;
ba84a797	118
dddbad72	119	expire = TIME_MAX;
16157b80	120	save_commit_buffer = 0;
6ebd1caf	121	read_replace_refs = 0;
ff4056bb	122	ref_paranoia = 1;
a633fca0	123	init_revisions(&revs, prefix);
ba84a797	124
37782920	125	argc = parse_options(argc, argv, prefix, options, prune_usage, 0);
23af91d1	126
067fbd41 JK	127	if (repository_format_precious_objects)
	128	die(_("cannot prune in a precious-objects repo"));
	129
fe308f53	130	while (argc--) {
af6730e7	131	struct object_id oid;
fe308f53 JH	132	const char name = argv++;
fe308f53 JH	133
af6730e7	134	if (!get_oid(name, &oid)) {
c251c83d	135	struct object *object = parse_object_or_die(&oid,
c251c83d	136	name);
fe308f53 JH	137	add_pending_object(&revs, object, "");
	138	}
	139	else
	140	die("unrecognized argument: %s", name);
	141	}
bf0a59b3 JK	142
	143	if (show_progress == -1)
	144	show_progress = isatty(2);
	145	if (show_progress)
8aade107	146	progress = start_delayed_progress(_("Checking connectivity"), 0);
0c16cd49 JT	147	if (exclude_promisor_objects) {
	148	fetch_if_missing = 0;
	149	revs.exclude_promisor_objects = 1;
	150	}
bf0a59b3	151
d3038d22	152	mark_reachable_objects(&revs, 1, expire, progress);
dc347195	153	stop_progress(&progress);
27e1e22d JK	154	for_each_loose_file_in_objdir(get_object_directory(), prune_object,
27e1e22d JK	155	prune_cruft, prune_subdir, NULL);
ba84a797	156
af0b4a3b	157	prune_packed_objects(show_only ? PRUNE_PACKED_DRY_RUN : 0);
db87e396	158	remove_temporary_files(get_object_directory());
4e2d094d	159	s = mkpathdup("%s/pack", get_object_directory());
db87e396 BC	160	remove_temporary_files(s);
db87e396 BC	161	free(s);
eab3296c	162
c8813487	163	if (is_repository_shallow(the_repository))
eab3296c NTND	164	prune_shallow(show_only);
eab3296c NTND	165
ba84a797 LT	166	return 0;
ba84a797 LT	167	}