Re: gitk shows an empty line between "Comments" and changed files

On Fri, 28 Oct 2005, Junio C Hamano wrote:

Sorry you lost me.  I am not sure what you mean by "without
actually doing anything" part.  The input to patch-id command in
the above pipe is (commit-object-name patch)*.  The command
reads such a stream, and transforms it to a (patch-id
commit-object-name)* stream.  In other words, the input
identifies each patch with a commit-object-name, and the command
condenses each patch to a patch-id, and spits them out, labelled
with commit-object-name.

Note that git-patch-id will happily take a patch without the commit ID at 
the head, it just won't have a commit ID to match it up with. For such 
patches it will just spit it out with an all-zero commit-object-name.

And that's very much by design. The point is that you can match up your 
(perhaps non-git) patches with what has been accepted. Which is why 
git-patch-id should always take non-git patches too, and then you can 
match them up by sorting by patch ID and doing "join -1" to match up 
duplicates.

So git-patch-id will work with or without the commit ID, but the commit ID 
is then later needed to figure out _which_ commit you matched up.

		Linus