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

Take advantage of fstat calls clustering per directory if OS support it....

Take advantage of fstat calls clustering per directory if OS support it. util module implements two versions of statfiles function _statfiles calls lstat per file _statfiles_clustered takes advantage of optimizations in osutil.c, stats all files in directory at once when new directory is hit and caches the results util.statfiles dispatches to appropriate version during module loading The speedup on directory tree with 2k directories and 63k files is about factor of 1.8 (1.3s -> 0.8s for hg diff - hg startup overhead about .2s) At this point only Win32 now benefit from this patch. Rest of OSes use the non clustered implementation.

Bryan O'Sullivan - - Load All Authors

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      # repo.py - repository base classes for mercurial

      #

      # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>

      # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>

      #

      # This software may be used and distributed according to the terms

      # of the GNU General Public License, incorporated herein by reference.

      from i18n import _

      class RepoError(Exception):

          pass

      class NoCapability(RepoError):

          pass

      class repository(object):

          def capable(self, name):

              '''tell whether repo supports named capability.

              return False if not supported.

              if boolean capability, return True.

              if string capability, return string.'''

              if name in self.capabilities:

                  return True

              name_eq = name + '='

              for cap in self.capabilities:

                  if cap.startswith(name_eq):

                      return cap[len(name_eq):]

              return False

          def requirecap(self, name, purpose):

              '''raise an exception if the given capability is not present'''

              if not self.capable(name):

                  raise NoCapability(_('cannot %s; remote repository does not '

                                       'support the %r capability') %

                                     (purpose, name))

          def local(self):

              return False

          def cancopy(self):

              return self.local()

          def rjoin(self, path):

              url = self.url()

              if url.endswith('/'):

                  return url + path

              return url + '/' + path

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				# repo.py - repository base classes for mercurial
				#
				# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
				# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
				#
				# This software may be used and distributed according to the terms
				# of the GNU General Public License, incorporated herein by reference.

				from i18n import _

				class RepoError(Exception):
				pass

				class NoCapability(RepoError):
				pass

				class repository(object):
				def capable(self, name):
				'''tell whether repo supports named capability.
				return False if not supported.
				if boolean capability, return True.
				if string capability, return string.'''
				if name in self.capabilities:
				return True
				name_eq = name + '='
				for cap in self.capabilities:
				if cap.startswith(name_eq):
				return cap[len(name_eq):]
				return False

				def requirecap(self, name, purpose):
				'''raise an exception if the given capability is not present'''
				if not self.capable(name):
				raise NoCapability(_('cannot %s; remote repository does not '
				'support the %r capability') %
				(purpose, name))

				def local(self):
				return False

				def cancopy(self):
				return self.local()

				def rjoin(self, path):
				url = self.url()
				if url.endswith('/'):
				return url + path
				return url + '/' + path