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localrepo: make supported features manageable in each repositories individually...

localrepo: make supported features manageable in each repositories individually Before this patch, all localrepositories support same features, because supported features are managed by the class variable "supported" of "localrepository". For example, "largefiles" feature provided by largefiles extension is recognized as supported, by adding the feature name to "supported" of "localrepository". So, commands handling multiple repositories at a time like below misunderstand that such features are supported also in repositories not enabling corresponded extensions: - clone/pull from or push to localhost - recursive execution in subrepo tree "reposetup()" can't be used to fix this problem, because it is invoked after checking whether supported features satisfy ones required in the target repository. So, this patch adds the set object named as "featuresetupfuncs" to "localrepository" to manage hook functions to setup supported features of each repositories. If any functions are added to "featuresetupfuncs", they are invoked, and information about supported features is managed in each repositories individually. This patch also adds checking below: - pull from localhost: whether features supported in the local(= dst) repository satisfies ones required in the remote(= src) - push to localhost: whether features supported in the remote(= dst) repository satisfies ones required in the local(= src) Managing supported features by the class variable means that there is no difference of supported features between each instances of "localrepository" in the same Python process, so such checking is not needed before this patch. Even with this patch, if intermediate bundlefile is used as pulling source, pulling indirectly from the remote repository, which requires features more than ones supported in the local, can't be prevented, because bundlefile has no information about "required features" in it.

Dan Villiom Podlaski Christiansen - - Load All Authors

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      # __init__.py - low-level interfaces to the Linux inotify subsystem

      # Copyright 2006 Bryan O'Sullivan <bos@serpentine.com>

      # This library is free software; you can redistribute it and/or modify

      # it under the terms of version 2.1 of the GNU Lesser General Public

      # License, or any later version.

      '''Low-level interface to the Linux inotify subsystem.

      The inotify subsystem provides an efficient mechanism for file status

      monitoring and change notification.

      This package provides the low-level inotify system call interface and

      associated constants and helper functions.

      For a higher-level interface that remains highly efficient, use the

      inotify.watcher package.'''

      __author__ = "Bryan O'Sullivan <bos@serpentine.com>"

      from _inotify import *

      procfs_path = '/proc/sys/fs/inotify'

      def _read_procfs_value(name):

          def read_value():

              try:

                  fp = open(procfs_path + '/' + name)

                  r = int(fp.read())

                  fp.close()

                  return r

              except OSError:

                  return None

          read_value.__doc__ = '''Return the value of the %s setting from /proc.

          If inotify is not enabled on this system, return None.''' % name

          return read_value

      max_queued_events = _read_procfs_value('max_queued_events')

      max_user_instances = _read_procfs_value('max_user_instances')

      max_user_watches = _read_procfs_value('max_user_watches')

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				# __init__.py - low-level interfaces to the Linux inotify subsystem

				# Copyright 2006 Bryan O'Sullivan <bos@serpentine.com>

				# This library is free software; you can redistribute it and/or modify
				# it under the terms of version 2.1 of the GNU Lesser General Public
				# License, or any later version.

				'''Low-level interface to the Linux inotify subsystem.

				The inotify subsystem provides an efficient mechanism for file status
				monitoring and change notification.

				This package provides the low-level inotify system call interface and
				associated constants and helper functions.

				For a higher-level interface that remains highly efficient, use the
				inotify.watcher package.'''

				__author__ = "Bryan O'Sullivan <bos@serpentine.com>"

				from _inotify import *

				procfs_path = '/proc/sys/fs/inotify'

				def _read_procfs_value(name):
				def read_value():
				try:
				fp = open(procfs_path + '/' + name)
				r = int(fp.read())
				fp.close()
				return r
				except OSError:
				return None

				read_value.__doc__ = '''Return the value of the %s setting from /proc.

				If inotify is not enabled on this system, return None.''' % name

				return read_value

				max_queued_events = _read_procfs_value('max_queued_events')
				max_user_instances = _read_procfs_value('max_user_instances')
				max_user_watches = _read_procfs_value('max_user_watches')