view CONTRIBUTORS @ 24881:51844b8b5017 stable

merge: run update hook after the last wlock release

There were 2 test failures in 3.4-rc when running test-hook.t with the
largefiles extension enabled.  For context, the first is a commit hook:

  @@ -618,9 +621,9 @@
     $ echo 'update = hg id' >> .hg/hgrc
     $ echo bb > a
     $ hg ci -ma
  -  223eafe2750c tip
  +  d3354c4310ed+
     $ hg up 0
  -  cb9a9f314b8b
  +  223eafe2750c+ tip
     1 files updated, 0 files merged, 0 files removed, 0 files unresolved

   make sure --verbose (and --quiet/--debug etc.) are propagated to the local ui

In both cases, largefiles acquires the wlock before calling into core, which
also acquires the wlock.  The first case was fixed in 57f1dbc99631 by ensuring
the hook only runs after the lock has been fully released.  The full release is
important, because that is what writes dirstate to the disk, allowing external
hooks to see the result of the update.  This simply changes how the update hook
is called, so that it too is deferred until the lock is finally released.

There are many uses of mergemod.update(), but in terms of commands, it looks
like the following commands take wlock while calling mergemod.update(), and
therefore will now have their hook fired at a later time:

    backout, fetch, histedit, qpush, rebase, shelve, transplant

Unlike the others, fetch immediately unlocks after calling update(), so for all
intents and purposes, its hook invocation is not deferred (but the external hook
still sees the proper state).

[This file is here for historical purposes, all recent contributors
should appear in the changelog directly]

Andrea Arcangeli <andrea at suse.de>
Thomas Arendsen Hein <thomas at intevation.de>
Goffredo Baroncelli <kreijack at libero.it>
Muli Ben-Yehuda <mulix at mulix.org>
Mikael Berthe <mikael at lilotux.net>
Benoit Boissinot <bboissin at gmail.com>
Brendan Cully <brendan at kublai.com>
Vincent Danjean <vdanjean.ml at free.fr>
Jake Edge <jake at edge2.net>
Michael Fetterman <michael.fetterman at intel.com>
Edouard Gomez <ed.gomez at free.fr>
Eric Hopper <hopper at omnifarious.org>
Alecs King <alecsk at gmail.com>
Volker Kleinfeld <Volker.Kleinfeld at gmx.de>
Vadim Lebedev <vadim at mbdsys.com>
Christopher Li <hg at chrisli.org>
Chris Mason <mason at suse.com>
Colin McMillen <mcmillen at cs.cmu.edu>
Wojciech Milkowski <wmilkowski at interia.pl>
Chad Netzer <chad.netzer at gmail.com>
Bryan O'Sullivan <bos at serpentine.com>
Vicent Seguí Pascual <vseguip at gmail.com>
Sean Perry <shaleh at speakeasy.net>
Nguyen Anh Quynh <aquynh at gmail.com>
Ollivier Robert <roberto at keltia.freenix.fr>
Alexander Schremmer <alex at alexanderweb.de>
Arun Sharma <arun at sharma-home.net>
Josef "Jeff" Sipek <jeffpc at optonline.net>
Kevin Smith <yarcs at qualitycode.com>
TK Soh <teekaysoh at yahoo.com>
Radoslaw Szkodzinski <astralstorm at gorzow.mm.pl>
Samuel Tardieu <sam at rfc1149.net>
K Thananchayan <thananck at yahoo.com>
Andrew Thompson <andrewkt at aktzero.com>
Michael S. Tsirkin <mst at mellanox.co.il>
Rafael Villar Burke <pachi at mmn-arquitectos.com>
Tristan Wibberley <tristan at wibberley.org>
Mark Williamson <mark.williamson at cl.cam.ac.uk>