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fe2128a826
56752391a8 (Make "git gc" pack all
refs by default) changed the default of gc.packrefs to true, to
pack all refs by default in any repository. IOW, the users need
to disable it explicitly if they want to by setting the config
variable, since 1.5.3.
However, we forgot to update the documentation. This fixes it.
Signed-off-by: Florian La Roche <laroche@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
117 lines
4.3 KiB
Text
117 lines
4.3 KiB
Text
git-gc(1)
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=========
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NAME
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----
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git-gc - Cleanup unnecessary files and optimize the local repository
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SYNOPSIS
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--------
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'git-gc' [--prune] [--aggressive] [--auto]
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DESCRIPTION
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-----------
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Runs a number of housekeeping tasks within the current repository,
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such as compressing file revisions (to reduce disk space and increase
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performance) and removing unreachable objects which may have been
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created from prior invocations of linkgit:git-add[1].
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Users are encouraged to run this task on a regular basis within
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each repository to maintain good disk space utilization and good
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operating performance. Some git commands may automatically run
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`git-gc`; see the `--auto` flag below for details.
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OPTIONS
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-------
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--prune::
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Usually `git-gc` packs refs, expires old reflog entries,
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packs loose objects,
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and removes old 'rerere' records. Removal
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of unreferenced loose objects is an unsafe operation
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while other git operations are in progress, so it is not
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done by default. Pass this option if you want it, and only
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when you know nobody else is creating new objects in the
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repository at the same time (e.g. never use this option
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in a cron script).
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--aggressive::
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Usually 'git-gc' runs very quickly while providing good disk
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space utilization and performance. This option will cause
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git-gc to more aggressively optimize the repository at the expense
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of taking much more time. The effects of this optimization are
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persistent, so this option only needs to be used occasionally; every
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few hundred changesets or so.
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--auto::
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With this option, `git gc` checks whether any housekeeping is
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required; if not, it exits without performing any work.
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Some git commands run `git gc --auto` after performing
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operations that could create many loose objects.
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+
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Housekeeping is required if there are too many loose objects or
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too many packs in the repository. If the number of loose objects
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exceeds the value of the `gc.auto` configuration variable, then
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all loose objects are combined into a single pack using
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`git-repack -d -l`. Setting the value of `gc.auto` to 0
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disables automatic packing of loose objects.
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+
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If the number of packs exceeds the value of `gc.autopacklimit`,
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then existing packs (except those marked with a `.keep` file)
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are consolidated into a single pack by using the `-A` option of
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`git-repack`. Setting `gc.autopacklimit` to 0 disables
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automatic consolidation of packs.
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Configuration
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-------------
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The optional configuration variable 'gc.reflogExpire' can be
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set to indicate how long historical entries within each branch's
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reflog should remain available in this repository. The setting is
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expressed as a length of time, for example '90 days' or '3 months'.
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It defaults to '90 days'.
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The optional configuration variable 'gc.reflogExpireUnreachable'
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can be set to indicate how long historical reflog entries which
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are not part of the current branch should remain available in
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this repository. These types of entries are generally created as
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a result of using `git commit \--amend` or `git rebase` and are the
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commits prior to the amend or rebase occurring. Since these changes
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are not part of the current project most users will want to expire
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them sooner. This option defaults to '30 days'.
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The optional configuration variable 'gc.rerereresolved' indicates
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how long records of conflicted merge you resolved earlier are
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kept. This defaults to 60 days.
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The optional configuration variable 'gc.rerereunresolved' indicates
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how long records of conflicted merge you have not resolved are
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kept. This defaults to 15 days.
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The optional configuration variable 'gc.packrefs' determines if
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`git gc` runs `git-pack-refs`. This can be set to "nobare" to enable
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it within all non-bare repos or it can be set to a boolean value.
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This defaults to true.
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The optional configuration variable 'gc.aggressiveWindow' controls how
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much time is spent optimizing the delta compression of the objects in
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the repository when the --aggressive option is specified. The larger
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the value, the more time is spent optimizing the delta compression. See
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the documentation for the --window' option in linkgit:git-repack[1] for
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more details. This defaults to 10.
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See Also
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--------
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linkgit:git-prune[1]
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linkgit:git-reflog[1]
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linkgit:git-repack[1]
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linkgit:git-rerere[1]
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Author
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------
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Written by Shawn O. Pearce <spearce@spearce.org>
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GIT
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---
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Part of the linkgit:git[7] suite
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