upstream/mercurial-mirror Files · hgext/narrow/narrowrepo.py

filelog: custom filelog to be used with narrow repos...

filelog: custom filelog to be used with narrow repos Narrow repos may have file revisions whose copy/rename metadata references files not in the store. This can pose problems when consumers attempt to access a missing referenced file revision. The narrow extension hacks around this problem by implementing a derived filelog type that provides custom implementations of renamed(), size(), and cmp() which handle renames against files not in the narrow spec by silently removing the rename metadata. While silently dropping metadata isn't the most robust solution, it is the easiest to implement. This commit ports the custom narrow filelog class to core. When a narrow repo is constructed, its ifilestorage creation function will automatically use the new filelog type. This means the extra logic is 0 cost for non-narrow repos and shouldn't interfere with their operation. Differential Revision: https://phab.mercurial-scm.org/D4643

Martin von Zweigbergk - - Load All Authors

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        Augie Fackler
    
narrow: import experimental extension from narrowhg revision cb51d673e9c5...

              r36096
            
      # narrowrepo.py - repository which supports narrow revlogs, lazy loading

      #

      # Copyright 2017 Google, 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

      from . import (

        Kyle Lippincott
    
narrow: only wrap dirstate functions once, instead of per-reposetup...

              r38142
            
          narrowdirstate,

        Augie Fackler
    
narrow: import experimental extension from narrowhg revision cb51d673e9c5...

              r36096
            
          narrowrevlog,

        Martin von Zweigbergk
    
narrow: move wire proto capabilities to narrowwirepeer...

              r39565
            
          narrowwirepeer,

        Augie Fackler
    
narrow: import experimental extension from narrowhg revision cb51d673e9c5...

              r36096
            
      )

        Martin von Zweigbergk
    
narrow: move checking for narrow requirement into _narrowmatch()...

              r36484
            
      def wraprepo(repo):

        Augie Fackler
    
narrow: import experimental extension from narrowhg revision cb51d673e9c5...

              r36096
            
          """Enables narrow clone functionality on a single local repository."""

          class narrowrepository(repo.__class__):

              def file(self, f):

                  fl = super(narrowrepository, self).file(f)

                  narrowrevlog.makenarrowfilelog(fl, self.narrowmatch())

                  return fl

        Kyle Lippincott
    
narrow: only wrap dirstate functions once, instead of per-reposetup...

              r38142
            
              def _makedirstate(self):

                  dirstate = super(narrowrepository, self)._makedirstate()

                  return narrowdirstate.wrapdirstate(self, dirstate)

        Martin von Zweigbergk
    
narrow: check "narrow" wire protocol capability, not bundle2 capability...

              r39564
            
              def peer(self):

                  peer = super(narrowrepository, self).peer()

        Martin von Zweigbergk
    
narrow: move wire proto capabilities to narrowwirepeer...

              r39565
            
                  peer._caps.add(narrowwirepeer.NARROWCAP)

                  peer._caps.add(narrowwirepeer.ELLIPSESCAP)

        Martin von Zweigbergk
    
narrow: check "narrow" wire protocol capability, not bundle2 capability...

              r39564
            
                  return peer

        Augie Fackler
    
narrow: import experimental extension from narrowhg revision cb51d673e9c5...

              r36096
            
          repo.__class__ = narrowrepository

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Augie Fackler narrow: import experimental extension from narrowhg revision cb51d673e9c5...	r36096	# narrowrepo.py - repository which supports narrow revlogs, lazy loading
		#
		# Copyright 2017 Google, 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

		from . import (
Kyle Lippincott narrow: only wrap dirstate functions once, instead of per-reposetup...	r38142	narrowdirstate,
Augie Fackler narrow: import experimental extension from narrowhg revision cb51d673e9c5...	r36096	narrowrevlog,
Martin von Zweigbergk narrow: move wire proto capabilities to narrowwirepeer...	r39565	narrowwirepeer,
Augie Fackler narrow: import experimental extension from narrowhg revision cb51d673e9c5...	r36096	)

Martin von Zweigbergk narrow: move checking for narrow requirement into _narrowmatch()...	r36484	def wraprepo(repo):
Augie Fackler narrow: import experimental extension from narrowhg revision cb51d673e9c5...	r36096	"""Enables narrow clone functionality on a single local repository."""

		class narrowrepository(repo.__class__):

		def file(self, f):
		fl = super(narrowrepository, self).file(f)
		narrowrevlog.makenarrowfilelog(fl, self.narrowmatch())
		return fl

Kyle Lippincott narrow: only wrap dirstate functions once, instead of per-reposetup...	r38142	def _makedirstate(self):
		dirstate = super(narrowrepository, self)._makedirstate()
		return narrowdirstate.wrapdirstate(self, dirstate)

Martin von Zweigbergk narrow: check "narrow" wire protocol capability, not bundle2 capability...	r39564	def peer(self):
		peer = super(narrowrepository, self).peer()
Martin von Zweigbergk narrow: move wire proto capabilities to narrowwirepeer...	r39565	peer._caps.add(narrowwirepeer.NARROWCAP)
		peer._caps.add(narrowwirepeer.ELLIPSESCAP)
Martin von Zweigbergk narrow: check "narrow" wire protocol capability, not bundle2 capability...	r39564	return peer

Augie Fackler narrow: import experimental extension from narrowhg revision cb51d673e9c5...	r36096	repo.__class__ = narrowrepository