Mercurial > hg
view mercurial/scmwindows.py @ 45515:89f0d9f87701
branchmap: add a cache validation cache, avoid expensive re-hash on every use
In a pathological `hg log` case, we end up executing the branchmap validity
checking twice per commit displayed. Or maybe we always do, and I just noticed
because it's really slow in this repo for some reason.
Before:
```
Time (mean ± σ): 9.816 s ± 0.071 s [User: 9.435 s, System: 0.392 s]
Range (min … max): 9.709 s … 9.920 s
```
After:
```
Time (mean ± σ): 8.671 s ± 0.078 s [User: 8.309 s, System: 0.392 s]
Range (min … max): 8.594 s … 8.816 s
```
Differential Revision: https://phab.mercurial-scm.org/D9023
author | Kyle Lippincott <spectral@google.com> |
---|---|
date | Wed, 16 Sep 2020 12:13:46 -0700 |
parents | 1ccf340acf14 |
children | 9ac96b9fa76e |
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from __future__ import absolute_import import os from . import ( encoding, pycompat, util, win32, ) try: import _winreg as winreg # pytype: disable=import-error winreg.CloseKey except ImportError: # py2 only import winreg # pytype: disable=import-error # MS-DOS 'more' is the only pager available by default on Windows. fallbackpager = b'more' def systemrcpath(): '''return default os-specific hgrc search path''' rcpath = [] filename = win32.executablepath() # Use mercurial.ini found in directory with hg.exe progrc = os.path.join(os.path.dirname(filename), b'mercurial.ini') rcpath.append(progrc) def _processdir(progrcd): if os.path.isdir(progrcd): for f, kind in util.listdir(progrcd): if f.endswith(b'.rc'): rcpath.append(os.path.join(progrcd, f)) # Use hgrc.d found in directory with hg.exe _processdir(os.path.join(os.path.dirname(filename), b'hgrc.d')) # treat a PROGRAMDATA directory as equivalent to /etc/mercurial programdata = encoding.environ.get(b'PROGRAMDATA') if programdata: programdata = os.path.join(programdata, b'Mercurial') _processdir(os.path.join(programdata, b'hgrc.d')) ini = os.path.join(programdata, b'mercurial.ini') if os.path.isfile(ini): rcpath.append(ini) ini = os.path.join(programdata, b'hgrc') if os.path.isfile(ini): rcpath.append(ini) # next look for a system rcpath in the registry value = util.lookupreg( b'SOFTWARE\\Mercurial', None, winreg.HKEY_LOCAL_MACHINE ) if value and isinstance(value, bytes): value = util.localpath(value) for p in value.split(pycompat.ospathsep): if p.lower().endswith(b'mercurial.ini'): rcpath.append(p) else: _processdir(p) return rcpath def userrcpath(): '''return os-specific hgrc search path to the user dir''' home = os.path.expanduser(b'~') path = [os.path.join(home, b'mercurial.ini'), os.path.join(home, b'.hgrc')] userprofile = encoding.environ.get(b'USERPROFILE') if userprofile and userprofile != home: path.append(os.path.join(userprofile, b'mercurial.ini')) path.append(os.path.join(userprofile, b'.hgrc')) return path def termsize(ui): return win32.termsize()