[PATCH 1 of 3] export: add 'Amends' hgpatchheader line

[Matthew Turk]

On Thu, Nov 21, 2013 at 5:48 PM, Pierre-Yves David
<pierre-yves.david at ens-lyon.org> wrote:
> On Thu, Nov 21, 2013 at 05:33:28PM -0500, Matthew Turk wrote:
>> # HG changeset patch
>> # User Matthew Turk <matthewturk at gmail.com>
>> # Date 1385069336 18000
>> #      Thu Nov 21 16:28:56 2013 -0500
>> # Node ID 4c14c3925a004ef7036715ec954c9695cdb05783
>> # Parent  986d09e696ff83def479a2e7adb237131d10dc09
>> export: add 'Amends' hgpatchheader line
>>
>> If 'amend_source' is found, the patch is an amend.  This adds the amend_source
>> key to the exported patch, which will subsequently be ignored in patch.extract.
>
> I can't see it working but for very narrow case. You usually do multiple amend so amend_source is not reliable to create useful obsolescence marker.
>
> If you want this topic to move forward, please have a look at embedding all of extra in patch so that `--exact`` stop being broken.
>

Okay.  In the subsequent patch I created an extra dictionary that got
fed into the new commit, but only containing 'amend_source' (and thus
missing all the other *_source keys).  If there's no utility to this
series, I'll scrap it and start over with a full embed of extra.

-Matt