git/Documentation/git-prune.txt
Junio C Hamano 2b86976bfd git-prune: never lose objects reachable from our refs.
Explicit <head> arguments to git-prune replaces, instead of
extends, the list of heads used for reachability analysis by
fsck-objects.  By giving a subset of heads by mistake, objects
reachable only from other heads can be removed, resulting in a
corrupted repository.

This commit stops replacing the list of heads, and makes the
command line arguments to add to them instead for safety.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-08 23:18:41 -08:00

62 lines
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git-prune(1)
============
NAME
----
git-prune - Prunes all unreachable objects from the object database
SYNOPSIS
--------
'git-prune' [-n] [--] [<head>...]
DESCRIPTION
-----------
This runs `git-fsck-objects --unreachable` using all the refs
available in `$GIT_DIR/refs`, optionally with additional set of
objects specified on the command line, and prunes all
objects unreachable from any of these head objects from the object database.
In addition, it
prunes the unpacked objects that are also found in packs by
running `git prune-packed`.
OPTIONS
-------
-n::
Do not remove anything; just report what it would
remove.
--::
Do not interpret any more arguments as options.
<head>...::
In addition to objects
reachable from any of our references, keep objects
reachable from listed <head>s.
EXAMPLE
-------
To prune objects not used by your repository nor another that
borrows from your repository via its
`.git/objects/info/alternates`:
------------
$ git prune $(cd ../another && $(git-rev-parse --all))
------------
Author
------
Written by Linus Torvalds <torvalds@osdl.org>
Documentation
--------------
Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>.
GIT
---
Part of the gitlink:git[7] suite