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git/Documentation/git-prune.txt
Jeff King cc1b8d8bc6 docs: don't talk about $GIT_DIR/refs/ everywhere
It is misleading to say that we pull refs from $GIT_DIR/refs/*, because we
may also consult the packed refs mechanism. These days we tend to treat
the "refs hierarchy" as more of an abstract namespace that happens to be
represented as $GIT_DIR/refs. At best, this is a minor inaccuracy, but at
worst it can confuse users who then look in $GIT_DIR/refs and find that it
is missing some of the refs they expected to see.

This patch drops most uses of "$GIT_DIR/refs/*", changing them into just
"refs/*", under the assumption that users can handle the concept of an
abstract refs namespace. There are a few things to note:

  - most cases just dropped the $GIT_DIR/ portion. But for cases where
    that left _just_ the word "refs", I changed it to "refs/" to help
    indicate that it was a hierarchy.  I didn't do the same for longer
    paths (e.g., "refs/heads" remained, instead of becoming
    "refs/heads/").

  - in some cases, no change was made, as the text was explicitly about
    unpacked refs (e.g., the discussion in git-pack-refs).

  - In some cases it made sense instead to note the existence of packed
    refs (e.g., in check-ref-format and rev-parse).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-17 21:40:09 -08:00

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git-prune(1)
============
NAME
----
git-prune - Prune all unreachable objects from the object database
SYNOPSIS
--------
'git prune' [-n] [-v] [--expire <expire>] [--] [<head>...]
DESCRIPTION
-----------
NOTE: In most cases, users should run 'git gc', which calls
'git prune'. See the section "NOTES", below.
This runs 'git fsck --unreachable' using all the refs
available in `refs/`, optionally with additional set of
objects specified on the command line, and prunes all unpacked
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'.
Note that unreachable, packed objects will remain. If this is
not desired, see linkgit:git-repack[1].
OPTIONS
-------
-n::
Do not remove anything; just report what it would
remove.
-v::
Report all removed objects.
\--::
Do not interpret any more arguments as options.
--expire <time>::
Only expire loose objects older than <time>.
<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))
------------
Notes
-----
In most cases, users will not need to call 'git prune' directly, but
should instead call 'git gc', which handles pruning along with
many other housekeeping tasks.
For a description of which objects are considered for pruning, see
'git fsck''s --unreachable option.
SEE ALSO
--------
linkgit:git-fsck[1],
linkgit:git-gc[1],
linkgit:git-reflog[1]
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 linkgit:git[1] suite