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

deltas: skip if projected compressed size does not match text size constraint...

deltas: skip if projected compressed size does not match text size constraint If we have a delta, we check constraints against a lower bound estimate of the resulting compressed delta. We then checks this projected size against the ½ⁿ size constraints. This allows to exclude potential base candidates before doing any expensive computation. This only apply to the intermediate-snapshot case since this constraint only apply to them. For some pathological cases of a private repository this step provide a further performance boost (timing from `hg perfrevlogwrite`): before: 3.145906 seconds after: 3.010646 seconds

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