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author | Junio C Hamano <junkio@cox.net> | 2007-05-20 02:18:40 -0700 |
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committer | Junio C Hamano <junkio@cox.net> | 2007-05-20 02:18:40 -0700 |
commit | a0f5b7f0170629107a4aa37a6485cf1263d2b802 (patch) | |
tree | fd88f8afdf518b952e1f75e8d94b9ce902b14e9a | |
parent | Merge branch 'jb/statcolor' (diff) | |
parent | Add --aggressive option to 'git gc' (diff) | |
download | tgif-a0f5b7f0170629107a4aa37a6485cf1263d2b802.tar.xz |
Merge branch 'tt/gc'
* tt/gc:
Add --aggressive option to 'git gc'
-rw-r--r-- | Documentation/config.txt | 5 | ||||
-rw-r--r-- | Documentation/git-gc.txt | 16 | ||||
-rw-r--r-- | builtin-gc.c | 32 |
3 files changed, 50 insertions, 3 deletions
diff --git a/Documentation/config.txt b/Documentation/config.txt index ea434af9db..efcf3019b0 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -384,6 +384,11 @@ format.suffix:: `.patch`. Use this variable to change that suffix (make sure to include the dot if you want it). +gc.aggressiveWindow:: + The window size parameter used in the delta compression + algorithm used by 'git gc --aggressive'. This defaults + to 10. + gc.packrefs:: `git gc` does not run `git pack-refs` in a bare repository by default so that older dumb-transport clients can still fetch diff --git a/Documentation/git-gc.txt b/Documentation/git-gc.txt index bc1658434a..4ac839f938 100644 --- a/Documentation/git-gc.txt +++ b/Documentation/git-gc.txt @@ -8,7 +8,7 @@ git-gc - Cleanup unnecessary files and optimize the local repository SYNOPSIS -------- -'git-gc' [--prune] +'git-gc' [--prune] [--aggressive] DESCRIPTION ----------- @@ -35,6 +35,13 @@ OPTIONS repository at the same time (e.g. never use this option in a cron script). +--aggressive:: + Usually 'git-gc' runs very quickly while providing good disk + space utilization and performance. This option will cause + git-gc to more aggressive optimize the repository at the expense + of taking much more time. The effects of this optimization are + persistent, so this option only needs to be sporadically; every + few hundred changesets or so. Configuration ------------- @@ -67,6 +74,13 @@ The optional configuration variable 'gc.packrefs' determines if is not run in bare repositories by default, to allow older dumb-transport clients fetch from the repository, but this will change in the future. +The optional configuration variable 'gc.aggressiveWindow' controls how +much time is spent optimizing the delta compression of the objects in +the repository when the --aggressive option is specified. The larger +the value, the more time is spent optimizing the delta compression. See +the documentation for the --window' option in gitlink:git-repack[1] for +more details. This defaults to 10. + See Also -------- gitlink:git-prune[1] diff --git a/builtin-gc.c b/builtin-gc.c index 3b1f8c2f3e..8ea165aef1 100644 --- a/builtin-gc.c +++ b/builtin-gc.c @@ -15,13 +15,15 @@ #define FAILED_RUN "failed to run %s" -static const char builtin_gc_usage[] = "git-gc [--prune]"; +static const char builtin_gc_usage[] = "git-gc [--prune] [--aggressive]"; static int pack_refs = -1; +static int aggressive_window = -1; +#define MAX_ADD 10 static const char *argv_pack_refs[] = {"pack-refs", "--prune", NULL}; static const char *argv_reflog[] = {"reflog", "expire", "--all", NULL}; -static const char *argv_repack[] = {"repack", "-a", "-d", "-l", NULL}; +static const char *argv_repack[MAX_ADD] = {"repack", "-a", "-d", "-l", NULL}; static const char *argv_prune[] = {"prune", NULL}; static const char *argv_rerere[] = {"rerere", "gc", NULL}; @@ -34,13 +36,31 @@ static int gc_config(const char *var, const char *value) pack_refs = git_config_bool(var, value); return 0; } + if (!strcmp(var, "gc.aggressivewindow")) { + aggressive_window = git_config_int(var, value); + return 0; + } return git_default_config(var, value); } +static void append_option(const char **cmd, const char *opt, int max_length) +{ + int i; + + for (i = 0; cmd[i]; i++) + ; + + if (i + 2 >= max_length) + die("Too many options specified"); + cmd[i++] = opt; + cmd[i] = NULL; +} + int cmd_gc(int argc, const char **argv, const char *prefix) { int i; int prune = 0; + char buf[80]; git_config(gc_config); @@ -53,6 +73,14 @@ int cmd_gc(int argc, const char **argv, const char *prefix) prune = 1; continue; } + if (!strcmp(arg, "--aggressive")) { + append_option(argv_repack, "-f", MAX_ADD); + if (aggressive_window > 0) { + sprintf(buf, "--window=%d", aggressive_window); + append_option(argv_repack, buf, MAX_ADD); + } + continue; + } /* perhaps other parameters later... */ break; } |