17815501a8
This teaches "git-gc --auto" to consolidate many packs into one without losing unreachable objects in them by using "repack -A" when there are too many packfiles that are not marked with *.keep in the repository. gc.autopacklimit configuration can be used to set the maximum number of packs a repository is allowed to have before this mechanism kicks in. Signed-off-by: Junio C Hamano <gitster@pobox.com>
112 lines
4.0 KiB
Plaintext
112 lines
4.0 KiB
Plaintext
git-gc(1)
|
|
=========
|
|
|
|
NAME
|
|
----
|
|
git-gc - Cleanup unnecessary files and optimize the local repository
|
|
|
|
|
|
SYNOPSIS
|
|
--------
|
|
'git-gc' [--prune] [--aggressive] [--auto]
|
|
|
|
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].
|
|
|
|
Users are encouraged to run this task on a regular basis within
|
|
each repository to maintain good disk space utilization and good
|
|
operating performance.
|
|
|
|
OPTIONS
|
|
-------
|
|
|
|
--prune::
|
|
Usually `git-gc` packs refs, expires old reflog entries,
|
|
packs loose objects,
|
|
and removes old 'rerere' records. Removal
|
|
of unreferenced loose objects is an unsafe operation
|
|
while other git operations are in progress, so it is not
|
|
done by default. Pass this option if you want it, and only
|
|
when you know nobody else is creating new objects in the
|
|
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 aggressively 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 used occasionally; every
|
|
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.
|
|
|
|
Configuration
|
|
-------------
|
|
|
|
The optional configuration variable 'gc.reflogExpire' can be
|
|
set to indicate how long historical entries within each branch's
|
|
reflog should remain available in this repository. The setting is
|
|
expressed as a length of time, for example '90 days' or '3 months'.
|
|
It defaults to '90 days'.
|
|
|
|
The optional configuration variable 'gc.reflogExpireUnreachable'
|
|
can be set to indicate how long historical reflog entries which
|
|
are not part of the current branch should remain available in
|
|
this repository. These types of entries are generally created as
|
|
a result of using `git commit \--amend` or `git rebase` and are the
|
|
commits prior to the amend or rebase occurring. Since these changes
|
|
are not part of the current project most users will want to expire
|
|
them sooner. This option defaults to '30 days'.
|
|
|
|
The optional configuration variable 'gc.rerereresolved' indicates
|
|
how long records of conflicted merge you resolved earlier are
|
|
kept. This defaults to 60 days.
|
|
|
|
The optional configuration variable 'gc.rerereunresolved' indicates
|
|
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.
|
|
|
|
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]
|
|
gitlink:git-reflog[1]
|
|
gitlink:git-repack[1]
|
|
gitlink:git-rerere[1]
|
|
|
|
Author
|
|
------
|
|
Written by Shawn O. Pearce <spearce@spearce.org>
|
|
|
|
GIT
|
|
---
|
|
Part of the gitlink:git[7] suite
|