git/Documentation/git-lost-found.txt
Junio C Hamano 831e61f80f Documentation: do not mention .git/refs/* directories
It is an implementation detail that a new tag is created by adding a
file in the .git/refs/tags directory.  The only thing the user needs
to know is that a "git tag" creates a ref in the refs/tags namespace,
and without "-f", it does not overwrite an existing tag.

Inspired by a report from 乙酸鋰 <ch3cooli@gmail.com>; I think I
caught all the existing mention in Documentation/ directory in the
tip of 1.7.9.X maintenance track, but we may have added new ones
since then.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-06 14:04:16 -07:00

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git-lost-found(1)
=================
NAME
----
git-lost-found - Recover lost refs that luckily have not yet been pruned
SYNOPSIS
--------
[verse]
'git lost-found'
DESCRIPTION
-----------
*NOTE*: this command is deprecated. Use linkgit:git-fsck[1] with
the option '--lost-found' instead.
Finds dangling commits and tags from the object database, and
creates refs to them in the .git/lost-found/ directory. Commits and
tags that dereference to commits are stored in .git/lost-found/commit,
and other objects are stored in .git/lost-found/other.
OUTPUT
------
Prints to standard output the object names and one-line descriptions
of any commits or tags found.
EXAMPLE
-------
Suppose you run 'git tag -f' and mistype the tag to overwrite.
The ref to your tag is overwritten, but until you run 'git
prune', the tag itself is still there.
------------
$ git lost-found
[1ef2b196d909eed523d4f3c9bf54b78cdd6843c6] GIT 0.99.9c
...
------------
Also you can use gitk to browse how any tags found relate to each
other.
------------
$ gitk $(cd .git/lost-found/commit && echo ??*)
------------
After making sure you know which the object is the tag you are looking
for, you can reconnect it to your regular `refs` hierarchy by using
the `update-ref` command.
------------
$ git cat-file -t 1ef2b196
tag
$ git cat-file tag 1ef2b196
object fa41bbce8e38c67a218415de6cfa510c7e50032a
type commit
tag v0.99.9c
tagger Junio C Hamano <junkio@cox.net> 1131059594 -0800
GIT 0.99.9c
This contains the following changes from the "master" branch, since
...
$ git update-ref refs/tags/not-lost-anymore 1ef2b196
$ git rev-parse not-lost-anymore
1ef2b196d909eed523d4f3c9bf54b78cdd6843c6
------------
GIT
---
Part of the linkgit:git[1] suite