upstream/mercurial-mirror Files · mercurial/scmwindows.py

obsolete: avoid slow, generic date parsing...

obsolete: avoid slow, generic date parsing Simple profiling of `hg log -r .` revealed ~18,000 calls to mercurial.i18n.gettext() on the author's repository. The culprit was 3 _() calls in util.parsedate() multiplied by ~6000 obsmarkers originating from the parsing of obsmarkers. Changing the obsmarker code to parse the stored format of dates instead of going through a generic path eliminates these gettext() lookups and makes `hg log -r .` execute ~10% faster on the author's repo. The performance gain is proportional to the number of obsmarkers. The author attempted to patch util.parsedate() to avoid the gettext() lookups. However, that code is whacky and the author is jet lagged, so the approach was not attempted.

Kevin Bullock - - Load All Authors

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      import os

      import osutil

      import util

      import _winreg

      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')

          if os.path.isfile(progrc):

              rcpath.append(progrc)

              return rcpath

          # 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))

              return rcpath

          # 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:

              path.append(os.path.join(userprofile, 'mercurial.ini'))

              path.append(os.path.join(userprofile, '.hgrc'))

          return path

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				import os
				import osutil
				import util
				import _winreg

				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')
				if os.path.isfile(progrc):
				rcpath.append(progrc)
				return rcpath
				# 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))
				return rcpath
				# 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:
				path.append(os.path.join(userprofile, 'mercurial.ini'))
				path.append(os.path.join(userprofile, '.hgrc'))
				return path