git/Documentation/git-get-tar-commit-id.txt

git-get-tar-commit-id(1)
========================

NAME
----
git-get-tar-commit-id - Extract commit ID from an archive created using git-archive


SYNOPSIS
--------
'git get-tar-commit-id' < <tarfile>


DESCRIPTION
-----------
Acts as a filter, extracting the commit ID stored in archives created by
`git-archive`.  It reads only the first 1024 bytes of input, thus its
runtime is not influenced by the size of <tarfile> very much.

If no commit ID is found, `git-get-tar-commit-id` quietly exists with a
return code of 1.  This can happen if <tarfile> had not been created
using `git-archive` or if the first parameter of `git-archive` had been
a tree ID instead of a commit ID or tag.


Author
------
Written by Rene Scharfe <rene.scharfe@lsrfire.ath.cx>

Documentation
--------------
Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.

GIT
---
Part of the linkgit:git[1] suite