GIT-PATCH-ID(1)GIT-PATCH-ID(1)NAMEgit-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 "reason-
ably 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 out-
puts 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 map-
ping from patch ID to commit ID.
OPTIONS
<patch>
The diff to create the ID of.
AUTHOR
Written by Linus Torvalds <torvalds@osdl.org: mailto:torvalds@osdl.org>
DOCUMENTATION
Documentation by Junio C Hamano and the git-list <git@vger.kernel.org:
mailto:git@vger.kernel.org>.
GIT
Part of the git(1) suite
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