view CONTRIBUTORS @ 29495:f83445296213

perf: use locally defined revlog option list for Mercurial earlier than 3.7

Before this patch, referring commands.debugrevlogopts prevents perf.py
from being loaded by Mercurial earlier than 3.7 (or 5606f7d0d063),
because it isn't available in such Mercurial, even though
cmdutil.openrevlog(), a user of these options, has been available
since 1.9 (or a79fea6b3e77).

In addition to it, there are some code paths for Mercurial earlier
than 3.7. For example, setting "_prereadsize" attribute in perfindex()
and perfnodelookup() is effective only with hg earlier than 1.8 (or
61c9bc3da402).

But just "using locally defined revlog option list" might cause
unexpected behavior at runtime. If --dir option is specified to
cmdutil.openrevlog() of Mercurial earlier than 3.5 (or 49c583ca48c4),
it is silently ignored without any warning or so.

  ============ ============ ===== ===============
                                  debugrevlogopts
  hg version   openrevlog() --dir of commands
  ============ ============ ===== ===============
  3.7 or later     o          o         o
  3.5 or later     o          o         x
  1.9 or later     o          x         x
  earlier          x          x         x
  ============ ============ ===== ===============

Therefore, this patch does:

  - use locally defined option list, if commands.debugrevlogopts isn't
    available (for Mercurial earlier than 3.7)

  - wrap cmdutil.openrevlog(), if it is ambiguous whether
    cmdutil.openrevlog() can recognize --dir option correctly
    (for Mercurial earlier than 3.5)

    This wrapper function aborts execution, if:
    - --dir option is specified, and
    - localrepository doesn't have "dirlog" attribute, which indicates
      that localrepository has a function for '--dir'

    BTW, extensions.wrapfunction() has been available since 1.1 (or
    0ab5f21c390b), and this seems old enough for "historical
    portability" of perf.py, which has been available since 1.1 (or
    eb240755386d).

[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>