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

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

static int delta_base_offset = 1;
static char *packdir, *packtmp;

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

static int repack_config(const char *var, const char *value, void *cb)
{
	if (!strcmp(var, "repack.usedeltabaseoffset")) {
		delta_base_offset = git_config_bool(var, value);
		return 0;
	}
	return git_default_config(var, value, cb);
}

/*
 * Remove temporary $GIT_OBJECT_DIRECTORY/pack/.tmp-$$-pack-* files.
 */
static void remove_temporary_files(void)
{
	struct strbuf buf = STRBUF_INIT;
	size_t dirlen, prefixlen;
	DIR *dir;
	struct dirent *e;

	dir = opendir(packdir);
	if (!dir)
		return;

	/* Point at the slash at the end of ".../objects/pack/" */
	dirlen = strlen(packdir) + 1;
	strbuf_addstr(&buf, packtmp);
	/* Hold the length of  ".tmp-%d-pack-" */
	prefixlen = buf.len - dirlen;

	while ((e = readdir(dir))) {
		if (strncmp(e->d_name, buf.buf + dirlen, prefixlen))
			continue;
		strbuf_setlen(&buf, dirlen);
		strbuf_addstr(&buf, e->d_name);
		unlink(buf.buf);
	}
	closedir(dir);
	strbuf_release(&buf);
}

static void remove_pack_on_signal(int signo)
{
	remove_temporary_files();
	sigchain_pop(signo);
	raise(signo);
}

/*
 * Adds all packs hex strings to the fname list, which do not
 * have a corresponding .keep file.
 */
static void get_non_kept_pack_filenames(struct string_list *fname_list)
{
	DIR *dir;
	struct dirent *e;
	char *fname;
	size_t len;

	if (!(dir = opendir(packdir)))
		return;

	while ((e = readdir(dir)) != NULL) {
		if (suffixcmp(e->d_name, ".pack"))
			continue;

		len = strlen(e->d_name) - strlen(".pack");
		fname = xmemdupz(e->d_name, len);

		if (!file_exists(mkpath("%s/%s.keep", packdir, fname)))
			string_list_append_nodup(fname_list, fname);
		else
			free(fname);
	}
	closedir(dir);
}

static void remove_redundant_pack(const char *dir_name, const char *base_name)
{
	const char *exts[] = {".pack", ".idx", ".keep"};
	int i;
	struct strbuf buf = STRBUF_INIT;
	size_t plen;

	strbuf_addf(&buf, "%s/%s", dir_name, base_name);
	plen = buf.len;

	for (i = 0; i < ARRAY_SIZE(exts); i++) {
		strbuf_setlen(&buf, plen);
		strbuf_addstr(&buf, exts[i]);
		unlink(buf.buf);
	}
	strbuf_release(&buf);
}

#define ALL_INTO_ONE 1
#define LOOSEN_UNREACHABLE 2

int cmd_repack(int argc, const char **argv, const char *prefix)
{
	struct {
		const char *name;
	} exts[] = {
		{".pack"},
		{".idx"},
	};
	struct child_process cmd;
	struct string_list_item *item;
	struct argv_array cmd_args = ARGV_ARRAY_INIT;
	struct string_list names = STRING_LIST_INIT_DUP;
	struct string_list rollback = STRING_LIST_INIT_NODUP;
	struct string_list existing_packs = STRING_LIST_INIT_DUP;
	struct strbuf line = STRBUF_INIT;
	int nr_packs, ext, ret, failed;
	FILE *out;

	/* variables to be filled by option parsing */
	int pack_everything = 0;
	int delete_redundant = 0;
	char *unpack_unreachable = NULL;
	int window = 0, window_memory = 0;
	int depth = 0;
	int max_pack_size = 0;
	int no_reuse_delta = 0, no_reuse_object = 0;
	int no_update_server_info = 0;
	int quiet = 0;
	int local = 0;

	struct option builtin_repack_options[] = {
		OPT_BIT('a', NULL, &pack_everything,
				N_("pack everything in a single pack"), ALL_INTO_ONE),
		OPT_BIT('A', NULL, &pack_everything,
				N_("same as -a, and turn unreachable objects loose"),
				   LOOSEN_UNREACHABLE | ALL_INTO_ONE),
		OPT_BOOL('d', NULL, &delete_redundant,
				N_("remove redundant packs, and run git-prune-packed")),
		OPT_BOOL('f', NULL, &no_reuse_delta,
				N_("pass --no-reuse-delta to git-pack-objects")),
		OPT_BOOL('F', NULL, &no_reuse_object,
				N_("pass --no-reuse-object to git-pack-objects")),
		OPT_BOOL('n', NULL, &no_update_server_info,
				N_("do not run git-update-server-info")),
		OPT__QUIET(&quiet, N_("be quiet")),
		OPT_BOOL('l', "local", &local,
				N_("pass --local to git-pack-objects")),
		OPT_STRING(0, "unpack-unreachable", &unpack_unreachable, N_("approxidate"),
				N_("with -A, do not loosen objects older than this")),
		OPT_INTEGER(0, "window", &window,
				N_("size of the window used for delta compression")),
		OPT_INTEGER(0, "window-memory", &window_memory,
				N_("same as the above, but limit memory size instead of entries count")),
		OPT_INTEGER(0, "depth", &depth,
				N_("limits the maximum delta depth")),
		OPT_INTEGER(0, "max-pack-size", &max_pack_size,
				N_("maximum size of each packfile")),
		OPT_END()
	};

	git_config(repack_config, NULL);

	argc = parse_options(argc, argv, prefix, builtin_repack_options,
				git_repack_usage, 0);

	packdir = mkpathdup("%s/pack", get_object_directory());
	packtmp = mkpathdup("%s/.tmp-%d-pack", packdir, (int)getpid());

	sigchain_push_common(remove_pack_on_signal);

	argv_array_push(&cmd_args, "pack-objects");
	argv_array_push(&cmd_args, "--keep-true-parents");
	argv_array_push(&cmd_args, "--honor-pack-keep");
	argv_array_push(&cmd_args, "--non-empty");
	argv_array_push(&cmd_args, "--all");
	argv_array_push(&cmd_args, "--reflog");
	if (window)
		argv_array_pushf(&cmd_args, "--window=%u", window);
	if (window_memory)
		argv_array_pushf(&cmd_args, "--window-memory=%u", window_memory);
	if (depth)
		argv_array_pushf(&cmd_args, "--depth=%u", depth);
	if (max_pack_size)
		argv_array_pushf(&cmd_args, "--max_pack_size=%u", max_pack_size);
	if (no_reuse_delta)
		argv_array_pushf(&cmd_args, "--no-reuse-delta");
	if (no_reuse_object)
		argv_array_pushf(&cmd_args, "--no-reuse-object");

	if (pack_everything & ALL_INTO_ONE) {
		get_non_kept_pack_filenames(&existing_packs);

		if (existing_packs.nr && delete_redundant) {
			if (unpack_unreachable)
				argv_array_pushf(&cmd_args,
						"--unpack-unreachable=%s",
						unpack_unreachable);
			else if (pack_everything & LOOSEN_UNREACHABLE)
				argv_array_push(&cmd_args,
						"--unpack-unreachable");
		}
	} else {
		argv_array_push(&cmd_args, "--unpacked");
		argv_array_push(&cmd_args, "--incremental");
	}

	if (local)
		argv_array_push(&cmd_args,  "--local");
	if (quiet)
		argv_array_push(&cmd_args,  "--quiet");
	if (delta_base_offset)
		argv_array_push(&cmd_args,  "--delta-base-offset");

	argv_array_push(&cmd_args, packtmp);

	memset(&cmd, 0, sizeof(cmd));
	cmd.argv = cmd_args.argv;
	cmd.git_cmd = 1;
	cmd.out = -1;
	cmd.no_stdin = 1;

	ret = start_command(&cmd);
	if (ret)
		return ret;

	nr_packs = 0;
	out = xfdopen(cmd.out, "r");
	while (strbuf_getline(&line, out, '\n') != EOF) {
		if (line.len != 40)
			die("repack: Expecting 40 character sha1 lines only from pack-objects.");
		string_list_append(&names, line.buf);
		nr_packs++;
	}
	fclose(out);
	ret = finish_command(&cmd);
	if (ret)
		return ret;
	argv_array_clear(&cmd_args);

	if (!nr_packs && !quiet)
		printf("Nothing new to pack.\n");

	/*
	 * Ok we have prepared all new packfiles.
	 * First see if there are packs of the same name and if so
	 * if we can move them out of the way (this can happen if we
	 * repacked immediately after packing fully.
	 */
	failed = 0;
	for_each_string_list_item(item, &names) {
		for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
			char *fname, *fname_old;
			fname = mkpathdup("%s/%s%s", packdir,
						item->string, exts[ext].name);
			if (!file_exists(fname)) {
				free(fname);
				continue;
			}

			fname_old = mkpath("%s/old-%s%s", packdir,
						item->string, exts[ext].name);
			if (file_exists(fname_old))
				if (unlink(fname_old))
					failed = 1;

			if (!failed && rename(fname, fname_old)) {
				free(fname);
				failed = 1;
				break;
			} else {
				string_list_append(&rollback, fname);
			}
		}
		if (failed)
			break;
	}
	if (failed) {
		struct string_list rollback_failure = STRING_LIST_INIT_DUP;
		for_each_string_list_item(item, &rollback) {
			char *fname, *fname_old;
			fname = mkpathdup("%s/%s", packdir, item->string);
			fname_old = mkpath("%s/old-%s", packdir, item->string);
			if (rename(fname_old, fname))
				string_list_append(&rollback_failure, fname);
			free(fname);
		}

		if (rollback_failure.nr) {
			int i;
			fprintf(stderr,
				"WARNING: Some packs in use have been renamed by\n"
				"WARNING: prefixing old- to their name, in order to\n"
				"WARNING: replace them with the new version of the\n"
				"WARNING: file.  But the operation failed, and the\n"
				"WARNING: attempt to rename them back to their\n"
				"WARNING: original names also failed.\n"
				"WARNING: Please rename them in %s manually:\n", packdir);
			for (i = 0; i < rollback_failure.nr; i++)
				fprintf(stderr, "WARNING:   old-%s -> %s\n",
					rollback_failure.items[i].string,
					rollback_failure.items[i].string);
		}
		exit(1);
	}

	/* Now the ones with the same name are out of the way... */
	for_each_string_list_item(item, &names) {
		for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
			char *fname, *fname_old;
			struct stat statbuffer;
			fname = mkpathdup("%s/pack-%s%s",
					packdir, item->string, exts[ext].name);
			fname_old = mkpathdup("%s-%s%s",
					packtmp, item->string, exts[ext].name);
			if (!stat(fname_old, &statbuffer)) {
				statbuffer.st_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
				chmod(fname_old, statbuffer.st_mode);
			}
			if (rename(fname_old, fname))
				die_errno(_("renaming '%s' failed"), fname_old);
			free(fname);
			free(fname_old);
		}
	}

	/* Remove the "old-" files */
	for_each_string_list_item(item, &names) {
		for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
			char *fname;
			fname = mkpath("%s/old-pack-%s%s",
					packdir,
					item->string,
					exts[ext].name);
			if (remove_path(fname))
				warning(_("removing '%s' failed"), fname);
		}
	}

	/* End of pack replacement. */

	if (delete_redundant) {
		sort_string_list(&names);
		for_each_string_list_item(item, &existing_packs) {
			char *sha1;
			size_t len = strlen(item->string);
			if (len < 40)
				continue;
			sha1 = item->string + len - 40;
			if (!string_list_has_string(&names, sha1))
				remove_redundant_pack(packdir, item->string);
		}
		argv_array_push(&cmd_args, "prune-packed");
		if (quiet)
			argv_array_push(&cmd_args, "--quiet");

		memset(&cmd, 0, sizeof(cmd));
		cmd.argv = cmd_args.argv;
		cmd.git_cmd = 1;
		run_command(&cmd);
		argv_array_clear(&cmd_args);
	}

	if (!no_update_server_info) {
		argv_array_push(&cmd_args, "update-server-info");
		memset(&cmd, 0, sizeof(cmd));
		cmd.argv = cmd_args.argv;
		cmd.git_cmd = 1;
		run_command(&cmd);
		argv_array_clear(&cmd_args);
	}
	remove_temporary_files();
	string_list_clear(&names, 0);
	string_list_clear(&rollback, 0);
	string_list_clear(&existing_packs, 0);
	strbuf_release(&line);

	return 0;
}
Commit	Line	Data
a1bbc6c0 SB	1	#include "builtin.h"
	2	#include "cache.h"
	3	#include "dir.h"
	4	#include "parse-options.h"
	5	#include "run-command.h"
	6	#include "sigchain.h"
	7	#include "strbuf.h"
	8	#include "string-list.h"
	9	#include "argv-array.h"
	10
	11	static int delta_base_offset = 1;
	12	static char packdir, packtmp;
	13
	14	static const char *const git_repack_usage[] = {
	15	N_("git repack [options]"),
	16	NULL
	17	};
	18
	19	static int repack_config(const char var, const char value, void *cb)
	20	{
	21	if (!strcmp(var, "repack.usedeltabaseoffset")) {
	22	delta_base_offset = git_config_bool(var, value);
	23	return 0;
	24	}
	25	return git_default_config(var, value, cb);
	26	}
	27
	28	/*
	29	* Remove temporary $GIT_OBJECT_DIRECTORY/pack/.tmp-$$-pack-* files.
	30	*/
	31	static void remove_temporary_files(void)
	32	{
	33	struct strbuf buf = STRBUF_INIT;
	34	size_t dirlen, prefixlen;
	35	DIR *dir;
	36	struct dirent *e;
	37
	38	dir = opendir(packdir);
	39	if (!dir)
	40	return;
	41
	42	/* Point at the slash at the end of ".../objects/pack/" */
	43	dirlen = strlen(packdir) + 1;
	44	strbuf_addstr(&buf, packtmp);
	45	/* Hold the length of ".tmp-%d-pack-" */
	46	prefixlen = buf.len - dirlen;
	47
	48	while ((e = readdir(dir))) {
	49	if (strncmp(e->d_name, buf.buf + dirlen, prefixlen))
	50	continue;
	51	strbuf_setlen(&buf, dirlen);
	52	strbuf_addstr(&buf, e->d_name);
	53	unlink(buf.buf);
	54	}
	55	closedir(dir);
	56	strbuf_release(&buf);
	57	}
	58
	59	static void remove_pack_on_signal(int signo)
	60	{
	61	remove_temporary_files();
	62	sigchain_pop(signo);
	63	raise(signo);
	64	}
65
66	/*
67	* Adds all packs hex strings to the fname list, which do not
68	* have a corresponding .keep file.
69	*/
70	static void get_non_kept_pack_filenames(struct string_list *fname_list)
71	{
72	DIR *dir;
73	struct dirent *e;
74	char *fname;
75	size_t len;
76
77	if (!(dir = opendir(packdir)))
78	return;
79
80	while ((e = readdir(dir)) != NULL) {
81	if (suffixcmp(e->d_name, ".pack"))
82	continue;
83
84	len = strlen(e->d_name) - strlen(".pack");
85	fname = xmemdupz(e->d_name, len);
86
87	if (!file_exists(mkpath("%s/%s.keep", packdir, fname)))
88	string_list_append_nodup(fname_list, fname);
89	else
90	free(fname);
91	}
92	closedir(dir);
93	}
94
95	static void remove_redundant_pack(const char dir_name, const char base_name)
96	{
97	const char *exts[] = {".pack", ".idx", ".keep"};
98	int i;
99	struct strbuf buf = STRBUF_INIT;
100	size_t plen;
101
102	strbuf_addf(&buf, "%s/%s", dir_name, base_name);
103	plen = buf.len;
104
105	for (i = 0; i < ARRAY_SIZE(exts); i++) {
106	strbuf_setlen(&buf, plen);
107	strbuf_addstr(&buf, exts[i]);
108	unlink(buf.buf);
109	}
110	strbuf_release(&buf);
111	}
112
113	#define ALL_INTO_ONE 1
114	#define LOOSEN_UNREACHABLE 2
115
116	int cmd_repack(int argc, const char *argv, const char prefix)
117	{
42a02d85 JK	118	struct {
	119	const char *name;
	120	} exts[] = {
	121	{".pack"},
	122	{".idx"},
	123	};
a1bbc6c0 SB	124	struct child_process cmd;
	125	struct string_list_item *item;
	126	struct argv_array cmd_args = ARGV_ARRAY_INIT;
	127	struct string_list names = STRING_LIST_INIT_DUP;
	128	struct string_list rollback = STRING_LIST_INIT_NODUP;
	129	struct string_list existing_packs = STRING_LIST_INIT_DUP;
	130	struct strbuf line = STRBUF_INIT;
	131	int nr_packs, ext, ret, failed;
	132	FILE *out;
	133
	134	/* variables to be filled by option parsing */
	135	int pack_everything = 0;
	136	int delete_redundant = 0;
	137	char *unpack_unreachable = NULL;
	138	int window = 0, window_memory = 0;
	139	int depth = 0;
	140	int max_pack_size = 0;
	141	int no_reuse_delta = 0, no_reuse_object = 0;
	142	int no_update_server_info = 0;
	143	int quiet = 0;
	144	int local = 0;
	145
	146	struct option builtin_repack_options[] = {
	147	OPT_BIT('a', NULL, &pack_everything,
	148	N_("pack everything in a single pack"), ALL_INTO_ONE),
	149	OPT_BIT('A', NULL, &pack_everything,
	150	N_("same as -a, and turn unreachable objects loose"),
	151	LOOSEN_UNREACHABLE \| ALL_INTO_ONE),
	152	OPT_BOOL('d', NULL, &delete_redundant,
	153	N_("remove redundant packs, and run git-prune-packed")),
	154	OPT_BOOL('f', NULL, &no_reuse_delta,
	155	N_("pass --no-reuse-delta to git-pack-objects")),
	156	OPT_BOOL('F', NULL, &no_reuse_object,
	157	N_("pass --no-reuse-object to git-pack-objects")),
	158	OPT_BOOL('n', NULL, &no_update_server_info,
	159	N_("do not run git-update-server-info")),
	160	OPT__QUIET(&quiet, N_("be quiet")),
	161	OPT_BOOL('l', "local", &local,
	162	N_("pass --local to git-pack-objects")),
	163	OPT_STRING(0, "unpack-unreachable", &unpack_unreachable, N_("approxidate"),
	164	N_("with -A, do not loosen objects older than this")),
	165	OPT_INTEGER(0, "window", &window,
	166	N_("size of the window used for delta compression")),
	167	OPT_INTEGER(0, "window-memory", &window_memory,
	168	N_("same as the above, but limit memory size instead of entries count")),
	169	OPT_INTEGER(0, "depth", &depth,
	170	N_("limits the maximum delta depth")),
	171	OPT_INTEGER(0, "max-pack-size", &max_pack_size,
	172	N_("maximum size of each packfile")),
	173	OPT_END()
	174	};
	175
	176	git_config(repack_config, NULL);
	177
	178	argc = parse_options(argc, argv, prefix, builtin_repack_options,
	179	git_repack_usage, 0);
	180
	181	packdir = mkpathdup("%s/pack", get_object_directory());
	182	packtmp = mkpathdup("%s/.tmp-%d-pack", packdir, (int)getpid());
	183
	184	sigchain_push_common(remove_pack_on_signal);
	185
	186	argv_array_push(&cmd_args, "pack-objects");
	187	argv_array_push(&cmd_args, "--keep-true-parents");
188	argv_array_push(&cmd_args, "--honor-pack-keep");
189	argv_array_push(&cmd_args, "--non-empty");
190	argv_array_push(&cmd_args, "--all");
191	argv_array_push(&cmd_args, "--reflog");
192	if (window)
193	argv_array_pushf(&cmd_args, "--window=%u", window);
194	if (window_memory)
195	argv_array_pushf(&cmd_args, "--window-memory=%u", window_memory);
196	if (depth)
197	argv_array_pushf(&cmd_args, "--depth=%u", depth);
198	if (max_pack_size)
199	argv_array_pushf(&cmd_args, "--max_pack_size=%u", max_pack_size);
200	if (no_reuse_delta)
201	argv_array_pushf(&cmd_args, "--no-reuse-delta");
202	if (no_reuse_object)
203	argv_array_pushf(&cmd_args, "--no-reuse-object");
204
205	if (pack_everything & ALL_INTO_ONE) {
206	get_non_kept_pack_filenames(&existing_packs);
207
208	if (existing_packs.nr && delete_redundant) {
209	if (unpack_unreachable)
210	argv_array_pushf(&cmd_args,
211	"--unpack-unreachable=%s",
212	unpack_unreachable);
213	else if (pack_everything & LOOSEN_UNREACHABLE)
214	argv_array_push(&cmd_args,
215	"--unpack-unreachable");
216	}
217	} else {
218	argv_array_push(&cmd_args, "--unpacked");
219	argv_array_push(&cmd_args, "--incremental");
220	}
221
222	if (local)
223	argv_array_push(&cmd_args, "--local");
224	if (quiet)
225	argv_array_push(&cmd_args, "--quiet");
226	if (delta_base_offset)
227	argv_array_push(&cmd_args, "--delta-base-offset");
228
229	argv_array_push(&cmd_args, packtmp);
230
231	memset(&cmd, 0, sizeof(cmd));
232	cmd.argv = cmd_args.argv;
233	cmd.git_cmd = 1;
234	cmd.out = -1;
235	cmd.no_stdin = 1;
236
237	ret = start_command(&cmd);
238	if (ret)
ffc9329f	239	return ret;
a1bbc6c0 SB	240
	241	nr_packs = 0;
	242	out = xfdopen(cmd.out, "r");
	243	while (strbuf_getline(&line, out, '\n') != EOF) {
	244	if (line.len != 40)
	245	die("repack: Expecting 40 character sha1 lines only from pack-objects.");
	246	string_list_append(&names, line.buf);
	247	nr_packs++;
	248	}
	249	fclose(out);
	250	ret = finish_command(&cmd);
	251	if (ret)
ffc9329f	252	return ret;
a1bbc6c0 SB	253	argv_array_clear(&cmd_args);
	254
	255	if (!nr_packs && !quiet)
	256	printf("Nothing new to pack.\n");
	257
	258	/*
	259	* Ok we have prepared all new packfiles.
	260	* First see if there are packs of the same name and if so
	261	* if we can move them out of the way (this can happen if we
	262	* repacked immediately after packing fully.
	263	*/
	264	failed = 0;
	265	for_each_string_list_item(item, &names) {
b328c216	266	for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
a1bbc6c0 SB	267	char fname, fname_old;
a1bbc6c0 SB	268	fname = mkpathdup("%s/%s%s", packdir,
42a02d85	269	item->string, exts[ext].name);
a1bbc6c0 SB	270	if (!file_exists(fname)) {
	271	free(fname);
	272	continue;
	273	}
	274
	275	fname_old = mkpath("%s/old-%s%s", packdir,
42a02d85	276	item->string, exts[ext].name);
a1bbc6c0 SB	277	if (file_exists(fname_old))
	278	if (unlink(fname_old))
	279	failed = 1;
	280
	281	if (!failed && rename(fname, fname_old)) {
	282	free(fname);
	283	failed = 1;
	284	break;
	285	} else {
	286	string_list_append(&rollback, fname);
	287	}
	288	}
	289	if (failed)
	290	break;
	291	}
	292	if (failed) {
	293	struct string_list rollback_failure = STRING_LIST_INIT_DUP;
	294	for_each_string_list_item(item, &rollback) {
	295	char fname, fname_old;
	296	fname = mkpathdup("%s/%s", packdir, item->string);
	297	fname_old = mkpath("%s/old-%s", packdir, item->string);
	298	if (rename(fname_old, fname))
	299	string_list_append(&rollback_failure, fname);
	300	free(fname);
	301	}
	302
	303	if (rollback_failure.nr) {
	304	int i;
	305	fprintf(stderr,
	306	"WARNING: Some packs in use have been renamed by\n"
	307	"WARNING: prefixing old- to their name, in order to\n"
	308	"WARNING: replace them with the new version of the\n"
	309	"WARNING: file. But the operation failed, and the\n"
	310	"WARNING: attempt to rename them back to their\n"
	311	"WARNING: original names also failed.\n"
	312	"WARNING: Please rename them in %s manually:\n", packdir);
	313	for (i = 0; i < rollback_failure.nr; i++)
	314	fprintf(stderr, "WARNING: old-%s -> %s\n",
	315	rollback_failure.items[i].string,
	316	rollback_failure.items[i].string);
	317	}
	318	exit(1);
	319	}
	320
	321	/* Now the ones with the same name are out of the way... */
	322	for_each_string_list_item(item, &names) {
b328c216	323	for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
a1bbc6c0 SB	324	char fname, fname_old;
	325	struct stat statbuffer;
	326	fname = mkpathdup("%s/pack-%s%s",
42a02d85	327	packdir, item->string, exts[ext].name);
a1bbc6c0	328	fname_old = mkpathdup("%s-%s%s",
42a02d85	329	packtmp, item->string, exts[ext].name);
a1bbc6c0 SB	330	if (!stat(fname_old, &statbuffer)) {
	331	statbuffer.st_mode &= ~(S_IWUSR \| S_IWGRP \| S_IWOTH);
	332	chmod(fname_old, statbuffer.st_mode);
	333	}
	334	if (rename(fname_old, fname))
0b63c6a5	335	die_errno(_("renaming '%s' failed"), fname_old);
a1bbc6c0 SB	336	free(fname);
	337	free(fname_old);
	338	}
	339	}
	340
	341	/* Remove the "old-" files */
	342	for_each_string_list_item(item, &names) {
b328c216	343	for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
a1bbc6c0 SB	344	char *fname;
	345	fname = mkpath("%s/old-pack-%s%s",
	346	packdir,
	347	item->string,
42a02d85	348	exts[ext].name);
0b63c6a5 SB	349	if (remove_path(fname))
0b63c6a5 SB	350	warning(_("removing '%s' failed"), fname);
a1bbc6c0 SB	351	}
	352	}
	353
	354	/* End of pack replacement. */
	355
	356	if (delete_redundant) {
	357	sort_string_list(&names);
	358	for_each_string_list_item(item, &existing_packs) {
	359	char *sha1;
	360	size_t len = strlen(item->string);
	361	if (len < 40)
	362	continue;
	363	sha1 = item->string + len - 40;
	364	if (!string_list_has_string(&names, sha1))
	365	remove_redundant_pack(packdir, item->string);
	366	}
	367	argv_array_push(&cmd_args, "prune-packed");
	368	if (quiet)
	369	argv_array_push(&cmd_args, "--quiet");
	370
	371	memset(&cmd, 0, sizeof(cmd));
	372	cmd.argv = cmd_args.argv;
	373	cmd.git_cmd = 1;
	374	run_command(&cmd);
	375	argv_array_clear(&cmd_args);
	376	}
	377
	378	if (!no_update_server_info) {
	379	argv_array_push(&cmd_args, "update-server-info");
	380	memset(&cmd, 0, sizeof(cmd));
	381	cmd.argv = cmd_args.argv;
	382	cmd.git_cmd = 1;
	383	run_command(&cmd);
	384	argv_array_clear(&cmd_args);
	385	}
	386	remove_temporary_files();
	387	string_list_clear(&names, 0);
	388	string_list_clear(&rollback, 0);
	389	string_list_clear(&existing_packs, 0);
	390	strbuf_release(&line);
	391
	392	return 0;
	393	}