perf: allow to clear the obsstore in 'perfvolatilesets'
Loading the obsstore can become a large part of the time necessary to compute
the important volatile set. We add a flag purging all known obsstore related
data.
For example, computing the 'bumped' set currently requires reading the full
obsstore, so timing greatly differ with or without that flag:
Without:
! bumped
! wall 0.005047 comb 0.000000 user 0.000000 sys 0.000000 (best of 446)
With:
! bumped
! wall 0.512367 comb 0.510000 user 0.480000 sys 0.030000 (best of 15)
#!/usr/bin/env python
#
# mercurial - scalable distributed SCM
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
import os
import sys
if os.environ.get('HGUNICODEPEDANTRY', False):
try:
reload(sys)
sys.setdefaultencoding("undefined")
except NameError:
pass
libdir = '@LIBDIR@'
if libdir != '@' 'LIBDIR' '@':
if not os.path.isabs(libdir):
libdir = os.path.join(os.path.dirname(os.path.realpath(__file__)),
libdir)
libdir = os.path.abspath(libdir)
sys.path.insert(0, libdir)
# enable importing on demand to reduce startup time
try:
if sys.version_info[0] < 3:
from mercurial import demandimport; demandimport.enable()
except ImportError:
sys.stderr.write("abort: couldn't find mercurial libraries in [%s]\n" %
' '.join(sys.path))
sys.stderr.write("(check your install and PYTHONPATH)\n")
sys.exit(-1)
import mercurial.util
import mercurial.dispatch
for fp in (sys.stdin, sys.stdout, sys.stderr):
mercurial.util.setbinary(fp)
mercurial.dispatch.run()