GIT-PATCH-ID(1)                                            Git Manual                                            GIT-PATCH-ID(1)



NAME
       git-patch-id - Compute unique ID for a patch

SYNOPSIS
       git patch-id < <patch>

DESCRIPTION
       A "patch ID" is nothing but a SHA1 of the diff associated with a patch, with whitespace and line numbers ignored. As
       such, it's "reasonably stable", but at the same time also reasonably unique, i.e., two patches that have the same "patch
       ID" are almost guaranteed to be the same thing.

       IOW, you can use this thing to look for likely duplicate commits.

       When dealing with git diff-tree output, it takes advantage of the fact that the patch is prefixed with the object name of
       the commit, and outputs two 40-byte hexadecimal strings. The first string is the patch ID, and the second string is the
       commit ID. This can be used to make a mapping from patch ID to commit ID.

OPTIONS
       <patch>
           The diff to create the ID of.

AUTHOR
       Written by Linus Torvalds <torvaldsATosdl.org[1]>

DOCUMENTATION
       Documentation by Junio C Hamano and the git-list <gitATvger.org[2]>.

GIT
       Part of the git(1) suite

NOTES
        1. torvaldsATosdl.org
           mailto:torvaldsATosdl.org

        2. gitATvger.org
           mailto:gitATvger.org



Git 1.7.4.4                                                04/11/2011                                            GIT-PATCH-ID(1)