Add "git-patch-id" program to generate patch ID's.
commitf97672225b3b1a2ca57cfc16f49239bed1efcd87
authorLinus Torvalds <torvalds@ppc970.osdl.org>
Thu, 23 Jun 2005 22:06:04 +0000 (23 15:06 -0700)
committerLinus Torvalds <torvalds@ppc970.osdl.org>
Thu, 23 Jun 2005 22:06:04 +0000 (23 15:06 -0700)
tree859ea953f28818fc24eaa11108f1a90c98095ab3
parent180926636e47ecfe28d03cec493af75899994f0f
Add "git-patch-id" program to generate patch ID's.

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, ie 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.
Makefile
patch-id.c [new file with mode: 0644]