Subject: Re: `git patch-id --stable' vs quoted-printable

From: Junio C Hamano <[email-masked]>
Date: Sun, 21 Aug 2022 21:18:26 -0700

Junio C Hamano <[email-masked]> writes:

>> So, I'm wondering if the search indexing code of public-inbox
>> should s/^$/ /mgs before feeding stuff to `git patch-id'; and/or
>> if `git patch-id' should be assuming empty lines and lines with a
>> single SP are the same...

Another potential source of issues (not for the patch from René that
was used as an example) is that a patch producer can use different
diff algorithm from the setting you would use to index resulting
commits via "git show | git patch-id".

    $ git show -U5 | git patch-id
    $ git show | git patch-id

likely result in different patch IDs.  

The --patience and the --histogram options affect how common lines
are matched up, again affecting the shape of the patches you compute
patch-ids over.