[RFC] Updating patchwork patches on commit

[Siddhesh Poyarekar]

On 12/7/20 11:41 PM, Joseph Myers wrote:
> On Mon, 7 Dec 2020, DJ Delorie via Libc-alpha wrote:
> 
>> Siddhesh Poyarekar <siddhesh@gotplt.org> writes:
>>> Well your NSS patches did match and auto-close; in fact the v4 of 3/6 in
>>> that patchset also got closed as Committed because diff-wise it was
>>> identical to v5 3/6 :)
>>
>> Ah, patchwork hash != git hash.  Nevermind ;-)
> 
> A previous discussion suggested "git patch-id" was appropriate to use for
> this purpose, but I don't know if it's what patchwork actually uses.
> 

It doesn't; it has it's own hashing function where it normalizes spaces 
and newline chars to avoid false negatives.  It could however do with 
some rudimentary sorting of diff lines to ensure that it generates the 
same hash for reordered diffs.  I'll play with that a bit later in the 
week and see if it improves matching.

Siddhesh