Re: [PATCH v3 3/7] builtin: patch-id: fix patch-id with binary diffs

[Junio C Hamano <gitster@pobox.com>]

Jerry Zhang <jerry@skydio.com> writes:

>> I thought I saw that a previous step touched diff.c to change how
>> patch ID for a binary diff is computed to match what patch-id
>> command computes?  Now we also have to change patch-id?  In the end
>> output from both may match, but which one between diff and patch-id
>> have we standardised on?
> Er yeah let me see if I can simplify.
>
> Before:
> Internal patch-id w/ unstable + binary was correct
> Internal patch-id w/ stable + binary was broken
> builtin patch-id w/ binary was broken
>
> After:
> Internal patch-id w/ unstable + binary is correct
> Internal patch-id w/ stable + binary is now correct
> builtin patch-id w/ binary is now correct
>
> So the "standard" actually came from the one working case from
> "before", which was the diff.c logic + unstable.

OK.

The question was meant to help you improve the log message, as it is
something a future reader of "git log" would wonder after reading
them.  I think including something that makes it easy for readers to
arrive at the summary above themselves by reading the log message
would be a very much welcome change.

Thanks.