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

strip: add faster revlog strip computation...

strip: add faster revlog strip computation The previous revlog strip computation would walk every rev in the revlog, from the bottom to the top. Since we're usually stripping only the top few revs of the revlog, this was needlessly expensive on large repos. The new algorithm walks the exact number of revs that will be stripped, thus making the operation not dependent on the number of revs in the repo. This makes amend on a large repo go from 8.7 seconds to 6 seconds.

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)