upstream/mercurial-mirror Files · hgdemandimport/tracing.py

dirstate: remove the python-side whitelist of allowed matchers...

dirstate: remove the python-side whitelist of allowed matchers This whitelist is too permissive because it allows matchers that contain disallowed ones deep inside, for example through `intersectionmatcher`. It is also too restrictive because it doesn't pass through some of the matchers we support, such as `patternmatcher`. It's also unnecessary because unsupported matchers raise `FallbackError` and we fall back anyway. Making this change makes more of the tests use rust code path, and therefore subtly change behavior. For example, rust status in largefiles repos seems to have strange behavior.

Gregory Szorc - - Load All Authors

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      # Support code for event tracing in Mercurial. Lives in demandimport

      # so it can also be used in demandimport.

      #

      # Copyright 2018 Google LLC.

      #

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

      # GNU General Public License version 2 or any later version.

      import contextlib

      import os

      _pipe = None

      _checked = False

      _session = 'none'

      def _isactive():

          global _pipe, _session, _checked

          if _pipe is None:

              if _checked:

                  return False

              _checked = True

              if 'HGCATAPULTSERVERPIPE' not in os.environ:

                  return False

              _pipe = open(os.environ['HGCATAPULTSERVERPIPE'], 'w', 1)

              _session = os.environ.get('HGCATAPULTSESSION', 'none')

          return True

      @contextlib.contextmanager

      def log(whencefmt, *whenceargs):

          if not _isactive():

              yield

              return

          whence = whencefmt % whenceargs

          try:

              # Both writes to the pipe are wrapped in try/except to ignore

              # errors, as we can see mysterious errors in here if the pager

              # is active. Presumably other conditions could trigger

              # problems too.

              try:

                  _pipe.write('START %s %s\n' % (_session, whence))

              except IOError:

                  pass

              yield

          finally:

              try:

                  _pipe.write('END %s %s\n' % (_session, whence))

              except IOError:

                  pass

      def counter(label, amount, *labelargs):

          if not _isactive():

              return

          l = label % labelargs

          # See above in log() for why this is in a try/except.

          try:

              _pipe.write('COUNTER %s %d %s\n' % (_session, amount, l))

          except IOError:

              pass

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				# Support code for event tracing in Mercurial. Lives in demandimport
				# so it can also be used in demandimport.
				#
				# Copyright 2018 Google LLC.
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				import contextlib
				import os

				_pipe = None
				_checked = False
				_session = 'none'


				def _isactive():
				global _pipe, _session, _checked
				if _pipe is None:
				if _checked:
				return False
				_checked = True
				if 'HGCATAPULTSERVERPIPE' not in os.environ:
				return False
				_pipe = open(os.environ['HGCATAPULTSERVERPIPE'], 'w', 1)
				_session = os.environ.get('HGCATAPULTSESSION', 'none')
				return True


				@contextlib.contextmanager
				def log(whencefmt, *whenceargs):
				if not _isactive():
				yield
				return
				whence = whencefmt % whenceargs
				try:
				# Both writes to the pipe are wrapped in try/except to ignore
				# errors, as we can see mysterious errors in here if the pager
				# is active. Presumably other conditions could trigger
				# problems too.
				try:
				_pipe.write('START %s %s\n' % (_session, whence))
				except IOError:
				pass
				yield
				finally:
				try:
				_pipe.write('END %s %s\n' % (_session, whence))
				except IOError:
				pass


				def counter(label, amount, *labelargs):
				if not _isactive():
				return
				l = label % labelargs
				# See above in log() for why this is in a try/except.
				try:
				_pipe.write('COUNTER %s %d %s\n' % (_session, amount, l))
				except IOError:
				pass