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

revset: improve head revset performance...

revset: improve head revset performance Previously the head() revset would iterate over every item in the subset and check if it was a head. Since the subset is often the entire repo, this was slow on large repos. Now we iterate over each item in the head list and check if it's in the subset, which results in much less work. hg log -r 'head()' on a large repo: Before: 0.95s After: 0.28s

Pierre-Yves David - - Load All Authors

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      # pushkey.py - dispatching for pushing and pulling keys

      #

      # Copyright 2010 Matt Mackall <mpm@selenic.com>

      #

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

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

      import bookmarks, phases, obsolete

      def _nslist(repo):

          n = {}

          for k in _namespaces:

              n[k] = ""

          if not obsolete._enabled:

              n.pop('obsolete')

          return n

      _namespaces = {"namespaces": (lambda *x: False, _nslist),

                     "bookmarks": (bookmarks.pushbookmark, bookmarks.listbookmarks),

                     "phases": (phases.pushphase, phases.listphases),

                     "obsolete": (obsolete.pushmarker, obsolete.listmarkers),

                    }

      def register(namespace, pushkey, listkeys):

          _namespaces[namespace] = (pushkey, listkeys)

      def _get(namespace):

          return _namespaces.get(namespace, (lambda *x: False, lambda *x: {}))

      def push(repo, namespace, key, old, new):

          '''should succeed iff value was old'''

          pk = _get(namespace)[0]

          return pk(repo, key, old, new)

      def list(repo, namespace):

          '''return a dict'''

          lk = _get(namespace)[1]

          return lk(repo)

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				# pushkey.py - dispatching for pushing and pulling keys
				#
				# Copyright 2010 Matt Mackall <mpm@selenic.com>
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				import bookmarks, phases, obsolete

				def _nslist(repo):
				n = {}
				for k in _namespaces:
				n[k] = ""
				if not obsolete._enabled:
				n.pop('obsolete')
				return n

				_namespaces = {"namespaces": (lambda *x: False, _nslist),
				"bookmarks": (bookmarks.pushbookmark, bookmarks.listbookmarks),
				"phases": (phases.pushphase, phases.listphases),
				"obsolete": (obsolete.pushmarker, obsolete.listmarkers),
				}

				def register(namespace, pushkey, listkeys):
				_namespaces[namespace] = (pushkey, listkeys)

				def _get(namespace):
				return _namespaces.get(namespace, (lambda x: False, lambda x: {}))

				def push(repo, namespace, key, old, new):
				'''should succeed iff value was old'''
				pk = _get(namespace)[0]
				return pk(repo, key, old, new)

				def list(repo, namespace):
				'''return a dict'''
				lk = _get(namespace)[1]
				return lk(repo)