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Diffstat (limited to 'Documentation/git-gc.txt')
| -rw-r--r-- | Documentation/git-gc.txt | 52 |
1 files changed, 29 insertions, 23 deletions
diff --git a/Documentation/git-gc.txt b/Documentation/git-gc.txt index b9d5660ea..4b2dfefa6 100644 --- a/Documentation/git-gc.txt +++ b/Documentation/git-gc.txt @@ -15,11 +15,12 @@ DESCRIPTION Runs a number of housekeeping tasks within the current repository, such as compressing file revisions (to reduce disk space and increase performance) and removing unreachable objects which may have been -created from prior invocations of gitlink:git-add[1]. +created from prior invocations of linkgit:git-add[1]. Users are encouraged to run this task on a regular basis within each repository to maintain good disk space utilization and good -operating performance. +operating performance. Some git commands may automatically run +`git-gc`; see the `--auto` flag below for details. OPTIONS ------- @@ -44,18 +45,23 @@ OPTIONS few hundred changesets or so. --auto:: - With this option, `git gc` checks if there are too many - loose objects in the repository and runs - gitlink:git-repack[1] with `-d -l` option to pack them. - The threshold for loose objects is set with `gc.auto` configuration - variable, and can be disabled by setting it to 0. Some - Porcelain commands use this after they perform operation - that could create many loose objects automatically. - Additionally, when there are too many packs are present, - they are consolidated into one larger pack by running - the `git-repack` command with `-A` option. The - threshold for number of packs is set with - `gc.autopacklimit` configuration variable. + With this option, `git gc` checks whether any housekeeping is + required; if not, it exits without performing any work. + Some git commands run `git gc --auto` after performing + operations that could create many loose objects. ++ +Housekeeping is required if there are too many loose objects or +too many packs in the repository. If the number of loose objects +exceeds the value of the `gc.auto` configuration variable, then +all loose objects are combined into a single pack using +`git-repack -d -l`. Setting the value of `gc.auto` to 0 +disables automatic packing of loose objects. ++ +If the number of packs exceeds the value of `gc.autopacklimit`, +then existing packs (except those marked with a `.keep` file) +are consolidated into a single pack by using the `-A` option of +`git-repack`. Setting `gc.autopacklimit` to 0 disables +automatic consolidation of packs. Configuration ------------- @@ -84,23 +90,23 @@ how long records of conflicted merge you have not resolved are kept. This defaults to 15 days. The optional configuration variable 'gc.packrefs' determines if -`git gc` runs `git-pack-refs`. Without the configuration, `git-pack-refs` -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. +`git gc` runs `git-pack-refs`. This can be set to "nobare" to enable +it within all non-bare repos or it can be set to a boolean value. +This defaults to true. 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 +the documentation for the --window' option in linkgit:git-repack[1] for more details. This defaults to 10. See Also -------- -gitlink:git-prune[1] -gitlink:git-reflog[1] -gitlink:git-repack[1] -gitlink:git-rerere[1] +linkgit:git-prune[1] +linkgit:git-reflog[1] +linkgit:git-repack[1] +linkgit:git-rerere[1] Author ------ @@ -108,4 +114,4 @@ Written by Shawn O. Pearce <spearce@spearce.org> GIT --- -Part of the gitlink:git[7] suite +Part of the linkgit:git[7] suite |