upstream/mercurial-mirror Files · tests/testlib/ext-sidedata-4.py

persistent-nodemap: introduce a test to highlight possible race...

persistent-nodemap: introduce a test to highlight possible race Weakness in the current file caching of the changelog means that a writer can end up using an outdated docket. This might result in "committed" persistent-nodemap data from a previous writer to be overwritten by a later writer. This break the strong "append only" assumption of the persistent nodemap and can result in confused reader. The race windows are quite narrow. See the test documentation for details. The issues is fixed in the next changeset. Differential Revision: https://phab.mercurial-scm.org/D11481

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      # coding: utf8

      # ext-sidedata-4.py - small extension to test (differently still) the sidedata

      # logic

      #

      # Simulates a server for a complex sidedata exchange.

      #

      # Copyright 2021 Raphaël Gomès <rgomes@octobus.net>

      #

      # 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 mercurial.revlogutils import sidedata

      def reposetup(ui, repo):

          repo.register_wanted_sidedata(sidedata.SD_TEST2)

          repo.register_wanted_sidedata(sidedata.SD_TEST3)

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				# coding: utf8
				# ext-sidedata-4.py - small extension to test (differently still) the sidedata
				# logic
				#
				# Simulates a server for a complex sidedata exchange.
				#
				# Copyright 2021 Raphaël Gomès <rgomes@octobus.net>
				#
				# 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 mercurial.revlogutils import sidedata


				def reposetup(ui, repo):
				repo.register_wanted_sidedata(sidedata.SD_TEST2)
				repo.register_wanted_sidedata(sidedata.SD_TEST3)