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

rust-dirstatemap: don't read the dirstate when requesting parents...

rust-dirstatemap: don't read the dirstate when requesting parents A future patch for issue 6303 reveals a big performance regression in the Rust `DirstateMap` that reads the entire dirstate when requesting parents instead of the first 40 bytes. `perfdiscovery` gets a *significant* speedup (from 0.101 to 0.016) when applied against said patch. I'm assuming it has other performance benefits, but this is already a good enough win. Differential Revision: https://phab.mercurial-scm.org/D8513

Augie Fackler - - Load All Authors

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      # stack.py - Mercurial functions for stack definition

      #

      #  Copyright Matt Mackall <mpm@selenic.com> and other

      #

      # 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 getstack(repo, rev=None):

          """return a sorted smartrev of the stack containing either rev if it is

          not None or the current working directory parent.

          The stack will always contain all drafts changesets which are ancestors to

          the revision and are not merges.

          """

          if rev is None:

              rev = b'.'

          revspec = b'only(%s) and not public() and not ::merge()'

          revisions = repo.revs(revspec, rev)

          revisions.sort()

          return revisions

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				# stack.py - Mercurial functions for stack definition
				#
				# Copyright Matt Mackall <mpm@selenic.com> and other
				#
				# 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 getstack(repo, rev=None):
				"""return a sorted smartrev of the stack containing either rev if it is
				not None or the current working directory parent.

				The stack will always contain all drafts changesets which are ancestors to
				the revision and are not merges.
				"""
				if rev is None:
				rev = b'.'

				revspec = b'only(%s) and not public() and not ::merge()'
				revisions = repo.revs(revspec, rev)
				revisions.sort()
				return revisions