upstream/mercurial-mirror Files · hgext/remotefilelog/shallowstore.py

context: add ctx.files{modified,added,removed}() methods...

context: add ctx.files{modified,added,removed}() methods Changeset-centric copy tracing is currently very slow because it often reads manifests. One place it needs the manifest is in _chain(), where it removes a copy X->Y if Y has subsequently gotten removed. I want to speed that up by keeping track directly in the changeset of which files are removed in the changeset. These methods will be similar to ctx.p[12]copies() in that way: they will either read from the changeset or calculate the information from the manifests otherwise. Note that these are different from ctx.{modified,added,removed}() on merge commits. Those functions always compare to p1, but the new ones compare to both parents. filesadded() means "file does not exist in either parent but exists now", filesremoved() means "file existed in either parent but does not exist now", and filesmodified() means "file existed in either parent and still exists". The set of files in ctx.files() is the union of the files from the three new functions (and the three new ones are all disjoint sets). Also note that uncommitted merges are weird as usual. The invariant mentioned above still holds, but the functions compare to p1 (and are thus identical to the existing methods). Differential Revision: https://phab.mercurial-scm.org/D6367

Augie Fackler - - Load All Authors

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      # shallowstore.py - shallow store for interacting with shallow repos

      #

      # Copyright 2013 Facebook, Inc.

      #

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

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

      from __future__ import absolute_import

      def wrapstore(store):

          class shallowstore(store.__class__):

              def __contains__(self, path):

                  # Assume it exists

                  return True

          store.__class__ = shallowstore

          return store

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				# shallowstore.py - shallow store for interacting with shallow repos
				#
				# Copyright 2013 Facebook, Inc.
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.
				from __future__ import absolute_import

				def wrapstore(store):
				class shallowstore(store.__class__):
				def __contains__(self, path):
				# Assume it exists
				return True

				store.__class__ = shallowstore

				return store