git-patch-id

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 <torvalds@osdl.org[1]>

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

GIT
       Part of the git(1) suite

NOTES
        1. torvalds@osdl.org
           mailto:torvalds@osdl.org

        2. git@vger.kernel.org
           mailto:git@vger.kernel.org



Git 1.7.1                         03/23/2016                   GIT-PATCH-ID(1)