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

compression: introduce an official `format.revlog-compression` option...

compression: introduce an official `format.revlog-compression` option This option supersedes the `experiment.format.compression` option. The value currently supported are zlib (default) and zstd (if Mercurial was compiled with zstd support). The option gained an explicit reference to `revlog` since this is the target usage here. Different storage methods might require different compression strategies. In our tests, using zstd give a significant CPU usage improvement (both compression and decompressing) while keeping similar repository size. Zstd as other interresting mode (dictionnary, pre-text, etc…) that are probably worth exploring. However, just plain switching from zlib to zstd provide a large benefit.

Boris Feld - - 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

      from . import (

          revsetlang,

          scmutil,

      )

      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 = '.'

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

          revset = revsetlang.formatspec(revspec, rev)

          revisions = scmutil.revrange(repo, [revset])

          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

				from . import (
				revsetlang,
				scmutil,
				)

				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 = '.'

				revspec = 'reverse(only(%s) and not public() and not ::merge())'
				revset = revsetlang.formatspec(revspec, rev)
				revisions = scmutil.revrange(repo, [revset])
				revisions.sort()
				return revisions