notify: optional mail threading based on obsmarker
When notify.reply is set and a changeset has a predecessor in the
repository, include In-Reply-To pointing to the message-id that would
have been generated for the oldest predecessor. This allows mail
threading like Phabricator for common cases like rebasing changes, but
will be optimal for cases like folding.
Differential Revision: https://phab.mercurial-scm.org/D8172
= Test the known() protocol function =
Create a test repository:
$ hg init repo
$ cd repo
$ touch a ; hg add a ; hg ci -ma
$ touch b ; hg add b ; hg ci -mb
$ touch c ; hg add c ; hg ci -mc
$ hg log --template '{node}\n'
991a3460af53952d10ec8a295d3d2cc2e5fa9690
0e067c57feba1a5694ca4844f05588bb1bf82342
3903775176ed42b1458a6281db4a0ccf4d9f287a
$ cd ..
Test locally:
$ hg debugknown repo 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 3903775176ed42b1458a6281db4a0ccf4d9f287a
111
$ hg debugknown repo 000a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 0003775176ed42b1458a6281db4a0ccf4d9f287a
010
$ hg debugknown repo
Test via HTTP:
$ hg serve -R repo -p $HGPORT -d --pid-file=hg.pid -E error.log -A access.log
$ cat hg.pid >> $DAEMON_PIDS
$ hg debugknown http://localhost:$HGPORT/ 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 3903775176ed42b1458a6281db4a0ccf4d9f287a
111
$ hg debugknown http://localhost:$HGPORT/ 000a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 0003775176ed42b1458a6281db4a0ccf4d9f287a
010
$ hg debugknown http://localhost:$HGPORT/
$ cat error.log
$ killdaemons.py