view CONTRIBUTORS @ 36870:1f42d621f090

hgweb: support using new response object for web commands

We have a "requestcontext" type for holding state for the current
request. Why we pass in the wsgirequest and templater instance
to @webcommand functions, I don't know.

I like the idea of standardizing on using "requestcontext" for passing
all state to @webcommand functions because that scales well without
API changes every time you want to pass a new piece of data. So,
we add our new request and response instances to "requestcontext" so
@webcommand functions can access them.

We also teach our command dispatcher to recognize a new calling
convention. Instead of returning content from the @webcommand
function, we return our response object. This signals that this
response object is to be used for sending output. The keyword
extension was wrapping various @webcommand and assuming the output
was iterable, so we had to teach it about the new calling convention.

To prove everything works, we convert the "filelog" @webcommand
to use the new convention.

The new calling convention is a bit wonky. I intend to improve this
once all commands are ported to use the new response object.

Differential Revision: https://phab.mercurial-scm.org/D2786

[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>