GIT v1.5.2-rc3
[git/git.git] / builtin-gc.c
CommitLineData
6757ada4
JB
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}