Andrew's git - gitweb.git/blob

   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 "cache.h"
  14#include "run-command.h"
  15
  16#define FAILED_RUN "failed to run %s"
  17
  18static const char builtin_gc_usage[] = "git-gc [--prune]";
  19
  20static int pack_refs = -1;
  21
  22static const char *argv_pack_refs[] = {"pack-refs", "--prune", NULL};
  23static const char *argv_reflog[] = {"reflog", "expire", "--all", NULL};
  24static const char *argv_repack[] = {"repack", "-a", "-d", "-l", NULL};
  25static const char *argv_prune[] = {"prune", NULL};
  26static const char *argv_rerere[] = {"rerere", "gc", NULL};
  27
  28static int gc_config(const char *var, const char *value)
  29{
  30        if (!strcmp(var, "gc.packrefs")) {
  31                if (!strcmp(value, "notbare"))
  32                        pack_refs = -1;
  33                else
  34                        pack_refs = git_config_bool(var, value);
  35                return 0;
  36        }
  37        return git_default_config(var, value);
  38}
  39
  40int cmd_gc(int argc, const char **argv, const char *prefix)
  41{
  42        int i;
  43        int prune = 0;
  44
  45        git_config(gc_config);
  46
  47        if (pack_refs < 0)
  48                pack_refs = !is_bare_repository();
  49
  50        for (i = 1; i < argc; i++) {
  51                const char *arg = argv[i];
  52                if (!strcmp(arg, "--prune")) {
  53                        prune = 1;
  54                        continue;
  55                }
  56                /* perhaps other parameters later... */
  57                break;
  58        }
  59        if (i != argc)
  60                usage(builtin_gc_usage);
  61
  62        if (pack_refs && run_command_v_opt(argv_pack_refs, RUN_GIT_CMD))
  63                return error(FAILED_RUN, argv_pack_refs[0]);
  64
  65        if (run_command_v_opt(argv_reflog, RUN_GIT_CMD))
  66                return error(FAILED_RUN, argv_reflog[0]);
  67
  68        if (run_command_v_opt(argv_repack, RUN_GIT_CMD))
  69                return error(FAILED_RUN, argv_repack[0]);
  70
  71        if (prune && run_command_v_opt(argv_prune, RUN_GIT_CMD))
  72                return error(FAILED_RUN, argv_prune[0]);
  73
  74        if (run_command_v_opt(argv_rerere, RUN_GIT_CMD))
  75                return error(FAILED_RUN, argv_rerere[0]);
  76
  77        return 0;
  78}