git.oblomov.eu Git - git/blob - builtin/gc.c

   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
  13 #include "builtin.h"
  14 #include "repository.h"
  15 #include "config.h"
  16 #include "tempfile.h"
  17 #include "lockfile.h"
  18 #include "parse-options.h"
  19 #include "run-command.h"
  20 #include "sigchain.h"
  21 #include "argv-array.h"
  22 #include "commit.h"
  23 #include "commit-graph.h"
  24 #include "packfile.h"
  25 #include "object-store.h"
  26 #include "pack.h"
  27 #include "pack-objects.h"
  28 #include "blob.h"
  29 #include "tree.h"
  30
  31 #define FAILED_RUN "failed to run %s"
  32
  33 static const char * const builtin_gc_usage[] = {
  34         N_("git gc [<options>]"),
  35         NULL
  36 };
  37
  38 static int pack_refs = 1;
  39 static int prune_reflogs = 1;
  40 static int aggressive_depth = 50;
  41 static int aggressive_window = 250;
  42 static int gc_auto_threshold = 6700;
  43 static int gc_auto_pack_limit = 50;
  44 static int detach_auto = 1;
  45 static timestamp_t gc_log_expire_time;
  46 static const char *gc_log_expire = "1.day.ago";
  47 static const char *prune_expire = "2.weeks.ago";
  48 static const char *prune_worktrees_expire = "3.months.ago";
  49 static unsigned long big_pack_threshold;
  50 static unsigned long max_delta_cache_size = DEFAULT_DELTA_CACHE_SIZE;
  51
  52 static struct argv_array pack_refs_cmd = ARGV_ARRAY_INIT;
  53 static struct argv_array reflog = ARGV_ARRAY_INIT;
  54 static struct argv_array repack = ARGV_ARRAY_INIT;
  55 static struct argv_array prune = ARGV_ARRAY_INIT;
  56 static struct argv_array prune_worktrees = ARGV_ARRAY_INIT;
  57 static struct argv_array rerere = ARGV_ARRAY_INIT;
  58
  59 static struct tempfile *pidfile;
  60 static struct lock_file log_lock;
  61
  62 static struct string_list pack_garbage = STRING_LIST_INIT_DUP;
  63
  64 static void clean_pack_garbage(void)
  65 {
  66         int i;
  67         for (i = 0; i < pack_garbage.nr; i++)
  68                 unlink_or_warn(pack_garbage.items[i].string);
  69         string_list_clear(&pack_garbage, 0);
  70 }
  71
  72 static void report_pack_garbage(unsigned seen_bits, const char *path)
  73 {
  74         if (seen_bits == PACKDIR_FILE_IDX)
  75                 string_list_append(&pack_garbage, path);
  76 }
  77
  78 static void process_log_file(void)
  79 {
  80         struct stat st;
  81         if (fstat(get_lock_file_fd(&log_lock), &st)) {
  82                 /*
  83                  * Perhaps there was an i/o error or another
  84                  * unlikely situation.  Try to make a note of
  85                  * this in gc.log along with any existing
  86                  * messages.
  87                  */
  88                 int saved_errno = errno;
  89                 fprintf(stderr, _("Failed to fstat %s: %s"),
  90                         get_tempfile_path(log_lock.tempfile),
  91                         strerror(saved_errno));
  92                 fflush(stderr);
  93                 commit_lock_file(&log_lock);
  94                 errno = saved_errno;
  95         } else if (st.st_size) {
  96                 /* There was some error recorded in the lock file */
  97                 commit_lock_file(&log_lock);
  98         } else {
  99                 /* No error, clean up any old gc.log */
 100                 unlink(git_path("gc.log"));
 101                 rollback_lock_file(&log_lock);
 102         }
 103 }
 104
 105 static void process_log_file_at_exit(void)
 106 {
 107         fflush(stderr);
 108         process_log_file();
 109 }
 110
 111 static void process_log_file_on_signal(int signo)
 112 {
 113         process_log_file();
 114         sigchain_pop(signo);
 115         raise(signo);
 116 }
 117
 118 static int gc_config_is_timestamp_never(const char *var)
 119 {
 120         const char *value;
 121         timestamp_t expire;
 122
 123         if (!git_config_get_value(var, &value) && value) {
 124                 if (parse_expiry_date(value, &expire))
 125                         die(_("failed to parse '%s' value '%s'"), var, value);
 126                 return expire == 0;
 127         }
 128         return 0;
 129 }
 130
 131 static void gc_config(void)
 132 {
 133         const char *value;
 134
 135         if (!git_config_get_value("gc.packrefs", &value)) {
 136                 if (value && !strcmp(value, "notbare"))
 137                         pack_refs = -1;
 138                 else
 139                         pack_refs = git_config_bool("gc.packrefs", value);
 140         }
 141
 142         if (gc_config_is_timestamp_never("gc.reflogexpire") &&
 143             gc_config_is_timestamp_never("gc.reflogexpireunreachable"))
 144                 prune_reflogs = 0;
 145
 146         git_config_get_int("gc.aggressivewindow", &aggressive_window);
 147         git_config_get_int("gc.aggressivedepth", &aggressive_depth);
 148         git_config_get_int("gc.auto", &gc_auto_threshold);
 149         git_config_get_int("gc.autopacklimit", &gc_auto_pack_limit);
 150         git_config_get_bool("gc.autodetach", &detach_auto);
 151         git_config_get_expiry("gc.pruneexpire", &prune_expire);
 152         git_config_get_expiry("gc.worktreepruneexpire", &prune_worktrees_expire);
 153         git_config_get_expiry("gc.logexpiry", &gc_log_expire);
 154
 155         git_config_get_ulong("gc.bigpackthreshold", &big_pack_threshold);
 156         git_config_get_ulong("pack.deltacachesize", &max_delta_cache_size);
 157
 158         git_config(git_default_config, NULL);
 159 }
 160
 161 static int too_many_loose_objects(void)
 162 {
 163         /*
 164          * Quickly check if a "gc" is needed, by estimating how
 165          * many loose objects there are.  Because SHA-1 is evenly
 166          * distributed, we can check only one and get a reasonable
 167          * estimate.
 168          */
 169         DIR *dir;
 170         struct dirent *ent;
 171         int auto_threshold;
 172         int num_loose = 0;
 173         int needed = 0;
 174         const unsigned hexsz_loose = the_hash_algo->hexsz - 2;
 175
 176         dir = opendir(git_path("objects/17"));
 177         if (!dir)
 178                 return 0;
 179
 180         auto_threshold = DIV_ROUND_UP(gc_auto_threshold, 256);
 181         while ((ent = readdir(dir)) != NULL) {
 182                 if (strspn(ent->d_name, "0123456789abcdef") != hexsz_loose ||
 183                     ent->d_name[hexsz_loose] != '\0')
 184                         continue;
 185                 if (++num_loose > auto_threshold) {
 186                         needed = 1;
 187                         break;
 188                 }
 189         }
 190         closedir(dir);
 191         return needed;
 192 }
 193
 194 static struct packed_git *find_base_packs(struct string_list *packs,
 195                                           unsigned long limit)
 196 {
 197         struct packed_git *p, *base = NULL;
 198
 199         for (p = get_all_packs(the_repository); p; p = p->next) {
 200                 if (!p->pack_local)
 201                         continue;
 202                 if (limit) {
 203                         if (p->pack_size >= limit)
 204                                 string_list_append(packs, p->pack_name);
 205                 } else if (!base || base->pack_size < p->pack_size) {
 206                         base = p;
 207                 }
 208         }
 209
 210         if (base)
 211                 string_list_append(packs, base->pack_name);
 212
 213         return base;
 214 }
 215
 216 static int too_many_packs(void)
 217 {
 218         struct packed_git *p;
 219         int cnt;
 220
 221         if (gc_auto_pack_limit <= 0)
 222                 return 0;
 223
 224         for (cnt = 0, p = get_all_packs(the_repository); p; p = p->next) {
 225                 if (!p->pack_local)
 226                         continue;
 227                 if (p->pack_keep)
 228                         continue;
 229                 /*
 230                  * Perhaps check the size of the pack and count only
 231                  * very small ones here?
 232                  */
 233                 cnt++;
 234         }
 235         return gc_auto_pack_limit < cnt;
 236 }
 237
 238 static uint64_t total_ram(void)
 239 {
 240 #if defined(HAVE_SYSINFO)
 241         struct sysinfo si;
 242
 243         if (!sysinfo(&si))
 244                 return si.totalram;
 245 #elif defined(HAVE_BSD_SYSCTL) && (defined(HW_MEMSIZE) || defined(HW_PHYSMEM))
 246         int64_t physical_memory;
 247         int mib[2];
 248         size_t length;
 249
 250         mib[0] = CTL_HW;
 251 # if defined(HW_MEMSIZE)
 252         mib[1] = HW_MEMSIZE;
 253 # else
 254         mib[1] = HW_PHYSMEM;
 255 # endif
 256         length = sizeof(int64_t);
 257         if (!sysctl(mib, 2, &physical_memory, &length, NULL, 0))
 258                 return physical_memory;
 259 #elif defined(GIT_WINDOWS_NATIVE)
 260         MEMORYSTATUSEX memInfo;
 261
 262         memInfo.dwLength = sizeof(MEMORYSTATUSEX);
 263         if (GlobalMemoryStatusEx(&memInfo))
 264                 return memInfo.ullTotalPhys;
 265 #endif
 266         return 0;
 267 }
 268
 269 static uint64_t estimate_repack_memory(struct packed_git *pack)
 270 {
 271         unsigned long nr_objects = approximate_object_count();
 272         size_t os_cache, heap;
 273
 274         if (!pack || !nr_objects)
 275                 return 0;
 276
 277         /*
 278          * First we have to scan through at least one pack.
 279          * Assume enough room in OS file cache to keep the entire pack
 280          * or we may accidentally evict data of other processes from
 281          * the cache.
 282          */
 283         os_cache = pack->pack_size + pack->index_size;
 284         /* then pack-objects needs lots more for book keeping */
 285         heap = sizeof(struct object_entry) * nr_objects;
 286         /*
 287          * internal rev-list --all --objects takes up some memory too,
 288          * let's say half of it is for blobs
 289          */
 290         heap += sizeof(struct blob) * nr_objects / 2;
 291         /*
 292          * and the other half is for trees (commits and tags are
 293          * usually insignificant)
 294          */
 295         heap += sizeof(struct tree) * nr_objects / 2;
 296         /* and then obj_hash[], underestimated in fact */
 297         heap += sizeof(struct object *) * nr_objects;
 298         /* revindex is used also */
 299         heap += sizeof(struct revindex_entry) * nr_objects;
 300         /*
 301          * read_sha1_file() (either at delta calculation phase, or
 302          * writing phase) also fills up the delta base cache
 303          */
 304         heap += delta_base_cache_limit;
 305         /* and of course pack-objects has its own delta cache */
 306         heap += max_delta_cache_size;
 307
 308         return os_cache + heap;
 309 }
 310
 311 static int keep_one_pack(struct string_list_item *item, void *data)
 312 {
 313         argv_array_pushf(&repack, "--keep-pack=%s", basename(item->string));
 314         return 0;
 315 }
 316
 317 static void add_repack_all_option(struct string_list *keep_pack)
 318 {
 319         if (prune_expire && !strcmp(prune_expire, "now"))
 320                 argv_array_push(&repack, "-a");
 321         else {
 322                 argv_array_push(&repack, "-A");
 323                 if (prune_expire)
 324                         argv_array_pushf(&repack, "--unpack-unreachable=%s", prune_expire);
 325         }
 326
 327         if (keep_pack)
 328                 for_each_string_list(keep_pack, keep_one_pack, NULL);
 329 }
 330
 331 static void add_repack_incremental_option(void)
 332 {
 333         argv_array_push(&repack, "--no-write-bitmap-index");
 334 }
 335
 336 static int need_to_gc(void)
 337 {
 338         /*
 339          * Setting gc.auto to 0 or negative can disable the
 340          * automatic gc.
 341          */
 342         if (gc_auto_threshold <= 0)
 343                 return 0;
 344
 345         /*
 346          * If there are too many loose objects, but not too many
 347          * packs, we run "repack -d -l".  If there are too many packs,
 348          * we run "repack -A -d -l".  Otherwise we tell the caller
 349          * there is no need.
 350          */
 351         if (too_many_packs()) {
 352                 struct string_list keep_pack = STRING_LIST_INIT_NODUP;
 353
 354                 if (big_pack_threshold) {
 355                         find_base_packs(&keep_pack, big_pack_threshold);
 356                         if (keep_pack.nr >= gc_auto_pack_limit) {
 357                                 big_pack_threshold = 0;
 358                                 string_list_clear(&keep_pack, 0);
 359                                 find_base_packs(&keep_pack, 0);
 360                         }
 361                 } else {
 362                         struct packed_git *p = find_base_packs(&keep_pack, 0);
 363                         uint64_t mem_have, mem_want;
 364
 365                         mem_have = total_ram();
 366                         mem_want = estimate_repack_memory(p);
 367
 368                         /*
 369                          * Only allow 1/2 of memory for pack-objects, leave
 370                          * the rest for the OS and other processes in the
 371                          * system.
 372                          */
 373                         if (!mem_have || mem_want < mem_have / 2)
 374                                 string_list_clear(&keep_pack, 0);
 375                 }
 376
 377                 add_repack_all_option(&keep_pack);
 378                 string_list_clear(&keep_pack, 0);
 379         } else if (too_many_loose_objects())
 380                 add_repack_incremental_option();
 381         else
 382                 return 0;
 383
 384         if (run_hook_le(NULL, "pre-auto-gc", NULL))
 385                 return 0;
 386         return 1;
 387 }
 388
 389 /* return NULL on success, else hostname running the gc */
 390 static const char *lock_repo_for_gc(int force, pid_t* ret_pid)
 391 {
 392         struct lock_file lock = LOCK_INIT;
 393         char my_host[HOST_NAME_MAX + 1];
 394         struct strbuf sb = STRBUF_INIT;
 395         struct stat st;
 396         uintmax_t pid;
 397         FILE *fp;
 398         int fd;
 399         char *pidfile_path;
 400
 401         if (is_tempfile_active(pidfile))
 402                 /* already locked */
 403                 return NULL;
 404
 405         if (xgethostname(my_host, sizeof(my_host)))
 406                 xsnprintf(my_host, sizeof(my_host), "unknown");
 407
 408         pidfile_path = git_pathdup("gc.pid");
 409         fd = hold_lock_file_for_update(&lock, pidfile_path,
 410                                        LOCK_DIE_ON_ERROR);
 411         if (!force) {
 412                 static char locking_host[HOST_NAME_MAX + 1];
 413                 static char *scan_fmt;
 414                 int should_exit;
 415
 416                 if (!scan_fmt)
 417                         scan_fmt = xstrfmt("%s %%%ds", "%"SCNuMAX, HOST_NAME_MAX);
 418                 fp = fopen(pidfile_path, "r");
 419                 memset(locking_host, 0, sizeof(locking_host));
 420                 should_exit =
 421                         fp != NULL &&
 422                         !fstat(fileno(fp), &st) &&
 423                         /*
 424                          * 12 hour limit is very generous as gc should
 425                          * never take that long. On the other hand we
 426                          * don't really need a strict limit here,
 427                          * running gc --auto one day late is not a big
 428                          * problem. --force can be used in manual gc
 429                          * after the user verifies that no gc is
 430                          * running.
 431                          */
 432                         time(NULL) - st.st_mtime <= 12 * 3600 &&
 433                         fscanf(fp, scan_fmt, &pid, locking_host) == 2 &&
 434                         /* be gentle to concurrent "gc" on remote hosts */
 435                         (strcmp(locking_host, my_host) || !kill(pid, 0) || errno == EPERM);
 436                 if (fp != NULL)
 437                         fclose(fp);
 438                 if (should_exit) {
 439                         if (fd >= 0)
 440                                 rollback_lock_file(&lock);
 441                         *ret_pid = pid;
 442                         free(pidfile_path);
 443                         return locking_host;
 444                 }
 445         }
 446
 447         strbuf_addf(&sb, "%"PRIuMAX" %s",
 448                     (uintmax_t) getpid(), my_host);
 449         write_in_full(fd, sb.buf, sb.len);
 450         strbuf_release(&sb);
 451         commit_lock_file(&lock);
 452         pidfile = register_tempfile(pidfile_path);
 453         free(pidfile_path);
 454         return NULL;
 455 }
 456
 457 /*
 458  * Returns 0 if there was no previous error and gc can proceed, 1 if
 459  * gc should not proceed due to an error in the last run. Prints a
 460  * message and returns -1 if an error occured while reading gc.log
 461  */
 462 static int report_last_gc_error(void)
 463 {
 464         struct strbuf sb = STRBUF_INIT;
 465         int ret = 0;
 466         ssize_t len;
 467         struct stat st;
 468         char *gc_log_path = git_pathdup("gc.log");
 469
 470         if (stat(gc_log_path, &st)) {
 471                 if (errno == ENOENT)
 472                         goto done;
 473
 474                 ret = error_errno(_("cannot stat '%s'"), gc_log_path);
 475                 goto done;
 476         }
 477
 478         if (st.st_mtime < gc_log_expire_time)
 479                 goto done;
 480
 481         len = strbuf_read_file(&sb, gc_log_path, 0);
 482         if (len < 0)
 483                 ret = error_errno(_("cannot read '%s'"), gc_log_path);
 484         else if (len > 0) {
 485                 /*
 486                  * A previous gc failed.  Report the error, and don't
 487                  * bother with an automatic gc run since it is likely
 488                  * to fail in the same way.
 489                  */
 490                 warning(_("The last gc run reported the following. "
 491                                "Please correct the root cause\n"
 492                                "and remove %s.\n"
 493                                "Automatic cleanup will not be performed "
 494                                "until the file is removed.\n\n"
 495                                "%s"),
 496                             gc_log_path, sb.buf);
 497                 ret = 1;
 498         }
 499         strbuf_release(&sb);
 500 done:
 501         free(gc_log_path);
 502         return ret;
 503 }
 504
 505 static void gc_before_repack(void)
 506 {
 507         /*
 508          * We may be called twice, as both the pre- and
 509          * post-daemonized phases will call us, but running these
 510          * commands more than once is pointless and wasteful.
 511          */
 512         static int done = 0;
 513         if (done++)
 514                 return;
 515
 516         if (pack_refs && run_command_v_opt(pack_refs_cmd.argv, RUN_GIT_CMD))
 517                 die(FAILED_RUN, pack_refs_cmd.argv[0]);
 518
 519         if (prune_reflogs && run_command_v_opt(reflog.argv, RUN_GIT_CMD))
 520                 die(FAILED_RUN, reflog.argv[0]);
 521 }
 522
 523 int cmd_gc(int argc, const char **argv, const char *prefix)
 524 {
 525         int aggressive = 0;
 526         int auto_gc = 0;
 527         int quiet = 0;
 528         int force = 0;
 529         const char *name;
 530         pid_t pid;
 531         int daemonized = 0;
 532         int keep_base_pack = -1;
 533         timestamp_t dummy;
 534
 535         struct option builtin_gc_options[] = {
 536                 OPT__QUIET(&quiet, N_("suppress progress reporting")),
 537                 { OPTION_STRING, 0, "prune", &prune_expire, N_("date"),
 538                         N_("prune unreferenced objects"),
 539                         PARSE_OPT_OPTARG, NULL, (intptr_t)prune_expire },
 540                 OPT_BOOL(0, "aggressive", &aggressive, N_("be more thorough (increased runtime)")),
 541                 OPT_BOOL_F(0, "auto", &auto_gc, N_("enable auto-gc mode"),
 542                            PARSE_OPT_NOCOMPLETE),
 543                 OPT_BOOL_F(0, "force", &force,
 544                            N_("force running gc even if there may be another gc running"),
 545                            PARSE_OPT_NOCOMPLETE),
 546                 OPT_BOOL(0, "keep-largest-pack", &keep_base_pack,
 547                          N_("repack all other packs except the largest pack")),
 548                 OPT_END()
 549         };
 550
 551         if (argc == 2 && !strcmp(argv[1], "-h"))
 552                 usage_with_options(builtin_gc_usage, builtin_gc_options);
 553
 554         argv_array_pushl(&pack_refs_cmd, "pack-refs", "--all", "--prune", NULL);
 555         argv_array_pushl(&reflog, "reflog", "expire", "--all", NULL);
 556         argv_array_pushl(&repack, "repack", "-d", "-l", NULL);
 557         argv_array_pushl(&prune, "prune", "--expire", NULL);
 558         argv_array_pushl(&prune_worktrees, "worktree", "prune", "--expire", NULL);
 559         argv_array_pushl(&rerere, "rerere", "gc", NULL);
 560
 561         /* default expiry time, overwritten in gc_config */
 562         gc_config();
 563         if (parse_expiry_date(gc_log_expire, &gc_log_expire_time))
 564                 die(_("failed to parse gc.logexpiry value %s"), gc_log_expire);
 565
 566         if (pack_refs < 0)
 567                 pack_refs = !is_bare_repository();
 568
 569         argc = parse_options(argc, argv, prefix, builtin_gc_options,
 570                              builtin_gc_usage, 0);
 571         if (argc > 0)
 572                 usage_with_options(builtin_gc_usage, builtin_gc_options);
 573
 574         if (prune_expire && parse_expiry_date(prune_expire, &dummy))
 575                 die(_("failed to parse prune expiry value %s"), prune_expire);
 576
 577         if (aggressive) {
 578                 argv_array_push(&repack, "-f");
 579                 if (aggressive_depth > 0)
 580                         argv_array_pushf(&repack, "--depth=%d", aggressive_depth);
 581                 if (aggressive_window > 0)
 582                         argv_array_pushf(&repack, "--window=%d", aggressive_window);
 583         }
 584         if (quiet)
 585                 argv_array_push(&repack, "-q");
 586
 587         if (auto_gc) {
 588                 /*
 589                  * Auto-gc should be least intrusive as possible.
 590                  */
 591                 if (!need_to_gc())
 592                         return 0;
 593                 if (!quiet) {
 594                         if (detach_auto)
 595                                 fprintf(stderr, _("Auto packing the repository in background for optimum performance.\n"));
 596                         else
 597                                 fprintf(stderr, _("Auto packing the repository for optimum performance.\n"));
 598                         fprintf(stderr, _("See \"git help gc\" for manual housekeeping.\n"));
 599                 }
 600                 if (detach_auto) {
 601                         int ret = report_last_gc_error();
 602                         if (ret < 0)
 603                                 /* an I/O error occured, already reported */
 604                                 exit(128);
 605                         if (ret == 1)
 606                                 /* Last gc --auto failed. Skip this one. */
 607                                 return 0;
 608
 609                         if (lock_repo_for_gc(force, &pid))
 610                                 return 0;
 611                         gc_before_repack(); /* dies on failure */
 612                         delete_tempfile(&pidfile);
 613
 614                         /*
 615                          * failure to daemonize is ok, we'll continue
 616                          * in foreground
 617                          */
 618                         daemonized = !daemonize();
 619                 }
 620         } else {
 621                 struct string_list keep_pack = STRING_LIST_INIT_NODUP;
 622
 623                 if (keep_base_pack != -1) {
 624                         if (keep_base_pack)
 625                                 find_base_packs(&keep_pack, 0);
 626                 } else if (big_pack_threshold) {
 627                         find_base_packs(&keep_pack, big_pack_threshold);
 628                 }
 629
 630                 add_repack_all_option(&keep_pack);
 631                 string_list_clear(&keep_pack, 0);
 632         }
 633
 634         name = lock_repo_for_gc(force, &pid);
 635         if (name) {
 636                 if (auto_gc)
 637                         return 0; /* be quiet on --auto */
 638                 die(_("gc is already running on machine '%s' pid %"PRIuMAX" (use --force if not)"),
 639                     name, (uintmax_t)pid);
 640         }
 641
 642         if (daemonized) {
 643                 hold_lock_file_for_update(&log_lock,
 644                                           git_path("gc.log"),
 645                                           LOCK_DIE_ON_ERROR);
 646                 dup2(get_lock_file_fd(&log_lock), 2);
 647                 sigchain_push_common(process_log_file_on_signal);
 648                 atexit(process_log_file_at_exit);
 649         }
 650
 651         gc_before_repack();
 652
 653         if (!repository_format_precious_objects) {
 654                 close_object_store(the_repository->objects);
 655                 if (run_command_v_opt(repack.argv, RUN_GIT_CMD))
 656                         die(FAILED_RUN, repack.argv[0]);
 657
 658                 if (prune_expire) {
 659                         argv_array_push(&prune, prune_expire);
 660                         if (quiet)
 661                                 argv_array_push(&prune, "--no-progress");
 662                         if (repository_format_partial_clone)
 663                                 argv_array_push(&prune,
 664                                                 "--exclude-promisor-objects");
 665                         if (run_command_v_opt(prune.argv, RUN_GIT_CMD))
 666                                 die(FAILED_RUN, prune.argv[0]);
 667                 }
 668         }
 669
 670         if (prune_worktrees_expire) {
 671                 argv_array_push(&prune_worktrees, prune_worktrees_expire);
 672                 if (run_command_v_opt(prune_worktrees.argv, RUN_GIT_CMD))
 673                         die(FAILED_RUN, prune_worktrees.argv[0]);
 674         }
 675
 676         if (run_command_v_opt(rerere.argv, RUN_GIT_CMD))
 677                 die(FAILED_RUN, rerere.argv[0]);
 678
 679         report_garbage = report_pack_garbage;
 680         reprepare_packed_git(the_repository);
 681         if (pack_garbage.nr > 0) {
 682                 close_object_store(the_repository->objects);
 683                 clean_pack_garbage();
 684         }
 685
 686         prepare_repo_settings(the_repository);
 687         if (the_repository->settings.gc_write_commit_graph == 1)
 688                 write_commit_graph_reachable(get_object_directory(),
 689                                              !quiet && !daemonized ? COMMIT_GRAPH_WRITE_PROGRESS : 0,
 690                                              NULL);
 691
 692         if (auto_gc && too_many_loose_objects())
 693                 warning(_("There are too many unreachable loose objects; "
 694                         "run 'git prune' to remove them."));
 695
 696         if (!daemonized)
 697                 unlink(git_path("gc.log"));
 698
 699         return 0;
 700 }