upstream/mercurial-mirror Files · mercurial/testing/__init__.py

revlog: avoid possible collision between directory and temporary index...

revlog: avoid possible collision between directory and temporary index Since 6.4, we create a temporary index file to write the split data without overwriting the inline version too early. However, the store encoding does not prevent these new `.i.s` file to collide with a directory with the same name. While the odds for such a collision to happens are fairly low, the collision would prevent Mercurial from working. The store encoding have a mitigation solution in place to prevent such collisions from happening for `.i` and `.d` files, but not for other extensions. We cannot update this encoding scheme to solve the issue since it would diverge from older version of Mercurial. Instead, we create an alternative directory tree dedicated to such files. The use of the `.i` extension combined with store encoding will prevent collisions there.

Raphaël Gomès - - Load All Authors

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             __init__.py
        
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      import os

      import time

      # work around check-code complains

      #

      # This is a simple log level module doing simple test related work, we can't

      # import more things, and we do not need it.

      environ = getattr(os, 'environ')

      def wait_on_cfg(ui, cfg, timeout=10):

          """synchronize on the `cfg` config path

          Use this to synchronize commands during race tests.

          """

          full_config = b'sync.' + cfg

          wait_config = full_config + b'-timeout'

          sync_path = ui.config(b'devel', full_config)

          if sync_path is not None:

              timeout = ui.config(b'devel', wait_config)

              ready_path = sync_path + b'.waiting'

              write_file(ready_path)

              wait_file(sync_path, timeout=timeout)

      def _timeout_factor():

          """return the current modification to timeout"""

          default = int(environ.get('HGTEST_TIMEOUT_DEFAULT', 360))

          current = int(environ.get('HGTEST_TIMEOUT', default))

          if current == 0:

              return 1

          return current / float(default)

      def wait_file(path, timeout=10):

          timeout *= _timeout_factor()

          start = time.time()

          while not os.path.exists(path):

              if timeout and time.time() - start > timeout:

                  raise RuntimeError(b"timed out waiting for file: %s" % path)

              time.sleep(0.01)

      def write_file(path, content=b''):

          if content:

              write_path = b'%s.tmp' % path

          else:

              write_path = path

          with open(write_path, 'wb') as f:

              f.write(content)

          if path != write_path:

              os.rename(write_path, path)

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				import os
				import time


				# work around check-code complains
				#
				# This is a simple log level module doing simple test related work, we can't
				# import more things, and we do not need it.
				environ = getattr(os, 'environ')


				def wait_on_cfg(ui, cfg, timeout=10):
				"""synchronize on the `cfg` config path

				Use this to synchronize commands during race tests.
				"""
				full_config = b'sync.' + cfg
				wait_config = full_config + b'-timeout'
				sync_path = ui.config(b'devel', full_config)
				if sync_path is not None:
				timeout = ui.config(b'devel', wait_config)
				ready_path = sync_path + b'.waiting'
				write_file(ready_path)
				wait_file(sync_path, timeout=timeout)


				def _timeout_factor():
				"""return the current modification to timeout"""
				default = int(environ.get('HGTEST_TIMEOUT_DEFAULT', 360))
				current = int(environ.get('HGTEST_TIMEOUT', default))
				if current == 0:
				return 1
				return current / float(default)


				def wait_file(path, timeout=10):
				timeout *= _timeout_factor()
				start = time.time()
				while not os.path.exists(path):
				if timeout and time.time() - start > timeout:
				raise RuntimeError(b"timed out waiting for file: %s" % path)
				time.sleep(0.01)


				def write_file(path, content=b''):
				if content:
				write_path = b'%s.tmp' % path
				else:
				write_path = path
				with open(write_path, 'wb') as f:
				f.write(content)
				if path != write_path:
				os.rename(write_path, path)