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git-describe: documentation.

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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Junio C Hamano 2005-12-27 16:10:56 -08:00
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Documentation/git-describe.txt Normal file
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git-describe(1)
===============
NAME
----
git-describe - Show the most recent tag that is reachable from a commit.
SYNOPSIS
--------
'git-describe' [--all] [--tags] [--abbrev=<n>] <committish>...
DESCRIPTION
-----------
The command finds the most recent tag that is reachable from a
commit, and if the commit itself is pointed at by the tag, shows
the tag. Otherwise, it suffixes the tag name with abbreviated
object name of the commit.
OPTIONS
-------
<committish>::
The object name of the comittish.
--all::
Instead of using only the annotated tags, use any ref
found in `.git/refs/`.
--tags::
Instead of using only the annotated tags, use any tag
found in `.git/refs/tags`.
--abbrev=<n>::
Instead of using the default 8 hexadecimal digits as the
abbreviated object name, use <n> digits.
EXAMPLES
--------
With something like git.git current tree, I get:
[torvalds@g5 git]$ git-describe parent
v1.0.4-g2414721b
i.e. the current head of my "parent" branch is based on v1.0.4,
but since it has a few commits on top of that, it has added the
git hash of the thing to the end: "-g" + 8-char shorthand for
the commit `2414721b194453f058079d897d13c4e377f92dc6`.
Doing a "git-describe" on a tag-name will just show the tag name:
[torvalds@g5 git]$ git-describe v1.0.4
v1.0.4
With --all, the command can use branch heads as references, so
the output shows the reference path as well:
[torvalds@g5 git]$ git describe --all --abbrev=4 v1.0.5^2
tags/v1.0.0-g975b
[torvalds@g5 git]$ git describe --all HEAD^
heads/lt/describe-g975b
Author
------
Written by Linus Torvalds <torvalds@osdl.org>, but somewhat
butchered by Junio C Hamano <junkio@cox.net>
Documentation
--------------
Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>.
GIT
---
Part of the gitlink:git[7] suite

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Documentation/git.txt
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@ -139,6 +139,9 @@ Interrogation commands
gitlink:git-cat-file[1]::
Provide content or type/size information for repository objects.
gitlink:git-describe[1]::
Show the most recent tag that is reachable from a commit.
gitlink:git-diff-index[1]::
Compares content and mode of blobs between the index and repository.