git-patch-id - Compute unique ID for a patch
git patch-id < <patch>
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.
GIT
Part of the git(1) suite
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | developer/versioning/git |
+---------------+--------------------------+
|Stability | Uncommitted |
+---------------+--------------------------+
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original community
source was downloaded from http://git-
core.googlecode.com/files/git-1.7.9.2.tar.gz
Further information about this software can be found on the open source
community website at http://git-scm.com/.
Git 1.7.9.2 02/22/2012 GIT-PATCH-ID(1)