Mercurial > hg
view mercurial/scmwindows.py @ 27784:432242f41d9f
obsolete: make _computeobsoleteset much faster
This patch makes _computeobsoleteset much faster by looping
over the draft and secrets as opposed to looping over the
successors.
This works because "number of draft and secret" is typically
way smaller(<100) than the number of successor in the repo (~90k in
my checkout of core mercurial as of today). And also because
it is very fast to compute "not public()".
I timed the code with the following setup:
"""
from mercurial import hg, ui, obsolete
ui = ui.ui()
repo = hg.repository(ui, "~/hg")
l = repo.obsstore.successors # This caches the result
"""
With about 90k successors.
k=obsolete._computeobsoleteset(repo) before this patch:
10 loops, best of 3: 33.9 ms per loop
k=obsolete._computeobsoleteset(repo) after this patch:
10000 loops, best of 3: 83.3 µs per loop
author | Laurent Charignon <lc2817@columbia.edu> |
---|---|
date | Wed, 13 Jan 2016 21:52:26 -0800 |
parents | 029f02757c20 |
children | 3df9f780c90e |
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from __future__ import absolute_import import _winreg import os from . import ( osutil, util, ) def systemrcpath(): '''return default os-specific hgrc search path''' rcpath = [] filename = util.executablepath() # Use mercurial.ini found in directory with hg.exe progrc = os.path.join(os.path.dirname(filename), 'mercurial.ini') rcpath.append(progrc) # Use hgrc.d found in directory with hg.exe progrcd = os.path.join(os.path.dirname(filename), 'hgrc.d') if os.path.isdir(progrcd): for f, kind in osutil.listdir(progrcd): if f.endswith('.rc'): rcpath.append(os.path.join(progrcd, f)) # else look for a system rcpath in the registry value = util.lookupreg('SOFTWARE\\Mercurial', None, _winreg.HKEY_LOCAL_MACHINE) if not isinstance(value, str) or not value: return rcpath value = util.localpath(value) for p in value.split(os.pathsep): if p.lower().endswith('mercurial.ini'): rcpath.append(p) elif os.path.isdir(p): for f, kind in osutil.listdir(p): if f.endswith('.rc'): rcpath.append(os.path.join(p, f)) return rcpath def userrcpath(): '''return os-specific hgrc search path to the user dir''' home = os.path.expanduser('~') path = [os.path.join(home, 'mercurial.ini'), os.path.join(home, '.hgrc')] userprofile = os.environ.get('USERPROFILE') if userprofile and userprofile != home: path.append(os.path.join(userprofile, 'mercurial.ini')) path.append(os.path.join(userprofile, '.hgrc')) return path