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# Copyright (C) 2008-2011 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Tests for foreign VCS utility code."""
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from bzrlib.repofmt import groupcompress_repo
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# This is the dummy foreign revision control system, used
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# mainly here in the testsuite to test the foreign VCS infrastructure.
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# It is basically standard Bazaar with some minor modifications to
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# It has the following differences to "regular" Bazaar:
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# - The control directory is named ".dummy", not ".bzr".
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# - The revision ids are tuples, not strings.
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# - Doesn't support more than one parent natively
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class DummyForeignVcsMapping(foreign.VcsMapping):
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"""A simple mapping for the dummy Foreign VCS, for use with testing."""
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def __eq__(self, other):
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return type(self) == type(other)
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def revision_id_bzr_to_foreign(self, bzr_revid):
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return tuple(bzr_revid[len("dummy-v1:"):].split("-")), self
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def revision_id_foreign_to_bzr(self, foreign_revid):
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return "dummy-v1:%s-%s-%s" % foreign_revid
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class DummyForeignVcsMappingRegistry(foreign.VcsMappingRegistry):
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def revision_id_bzr_to_foreign(self, revid):
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if not revid.startswith("dummy-"):
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raise errors.InvalidRevisionId(revid, None)
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mapping_version = revid[len("dummy-"):len("dummy-vx")]
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mapping = self.get(mapping_version)
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return mapping.revision_id_bzr_to_foreign(revid)
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class DummyForeignVcs(foreign.ForeignVcs):
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"""A dummy Foreign VCS, for use with testing.
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It has revision ids that are a tuple with three strings.
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self.mapping_registry = DummyForeignVcsMappingRegistry()
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self.mapping_registry.register("v1", DummyForeignVcsMapping(self),
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self.abbreviation = "dummy"
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def show_foreign_revid(self, foreign_revid):
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return { "dummy ding": "%s/%s\\%s" % foreign_revid }
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def serialize_foreign_revid(self, foreign_revid):
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return "%s|%s|%s" % foreign_revid
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class DummyForeignVcsBranch(branch.BzrBranch6,foreign.ForeignBranch):
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"""A Dummy VCS Branch."""
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def user_transport(self):
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return self.bzrdir.user_transport
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def __init__(self, _format, _control_files, a_bzrdir, *args, **kwargs):
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self._format = _format
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self._base = a_bzrdir.transport.base
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self._ignore_fallbacks = False
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self.bzrdir = a_bzrdir
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foreign.ForeignBranch.__init__(self,
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DummyForeignVcsMapping(DummyForeignVcs()))
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branch.BzrBranch6.__init__(self, _format, _control_files, a_bzrdir,
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def _get_checkout_format(self, lightweight=False):
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"""Return the most suitable metadir for a checkout of this branch.
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Weaves are used if this branch's repository uses weaves.
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return self.bzrdir.checkout_metadir()
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def import_last_revision_info_and_tags(self, source, revno, revid,
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interbranch = InterToDummyVcsBranch(source, self)
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result = interbranch.push(stop_revision=revid, lossy=True)
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revid = result.revidmap[revid]
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return (revno, revid)
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class DummyForeignCommitBuilder(vf_repository.VersionedFileRootCommitBuilder):
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def _generate_revision_if_needed(self):
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mapping = DummyForeignVcsMapping(DummyForeignVcs())
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self._new_revision_id = mapping.revision_id_foreign_to_bzr(
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(str(self._timestamp), str(self._timezone), "UNKNOWN"))
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self.random_revid = False
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elif self._new_revision_id is not None:
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self.random_revid = False
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self._new_revision_id = self._gen_revision_id()
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self.random_revid = True
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class DummyForeignVcsRepository(groupcompress_repo.CHKInventoryRepository,
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foreign.ForeignRepository):
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"""Dummy foreign vcs repository."""
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class DummyForeignVcsRepositoryFormat(groupcompress_repo.RepositoryFormat2a):
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repository_class = DummyForeignVcsRepository
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_commit_builder_class = DummyForeignCommitBuilder
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def get_format_string(cls):
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return "Dummy Foreign Vcs Repository"
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def get_format_description(self):
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return "Dummy Foreign Vcs Repository"
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def branch_history(graph, revid):
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ret = list(graph.iter_lefthand_ancestry(revid,
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(revision.NULL_REVISION,)))
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class InterToDummyVcsBranch(branch.GenericInterBranch):
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def is_compatible(source, target):
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return isinstance(target, DummyForeignVcsBranch)
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def push(self, overwrite=False, stop_revision=None, lossy=False):
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raise errors.NoRoundtrippingSupport(self.source, self.target)
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result = branch.BranchPushResult()
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result.source_branch = self.source
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result.target_branch = self.target
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result.old_revno, result.old_revid = self.target.last_revision_info()
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self.source.lock_read()
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graph = self.source.repository.get_graph()
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# This just handles simple cases, but that's good enough for tests
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my_history = branch_history(self.target.repository.get_graph(),
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if stop_revision is None:
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stop_revision = self.source.last_revision()
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their_history = branch_history(graph, stop_revision)
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if their_history[:min(len(my_history), len(their_history))] != my_history:
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raise errors.DivergedBranches(self.target, self.source)
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todo = their_history[len(my_history):]
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rev = self.source.repository.get_revision(revid)
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tree = self.source.repository.revision_tree(revid)
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def get_file_with_stat(file_id, path=None):
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return (tree.get_file(file_id), None)
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tree.get_file_with_stat = get_file_with_stat
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new_revid = self.target.mapping.revision_id_foreign_to_bzr(
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(str(rev.timestamp), str(rev.timezone),
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str(self.target.revno())))
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parent_revno, parent_revid= self.target.last_revision_info()
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if parent_revid == revision.NULL_REVISION:
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parent_revids = [parent_revid]
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builder = self.target.get_commit_builder(parent_revids,
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self.target.get_config_stack(), rev.timestamp,
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rev.timezone, rev.committer, rev.properties,
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parent_tree = self.target.repository.revision_tree(
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for path, ie in tree.iter_entries_by_dir():
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new_ie.revision = None
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builder.record_entry_contents(new_ie,
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[parent_tree.root_inventory],
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(ie.kind, ie.text_size, ie.executable, ie.text_sha1))
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builder.finish_inventory()
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revidmap[revid] = builder.commit(rev.message)
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self.target.set_last_revision_info(parent_revno+1,
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trace.mutter('lossily pushed revision %s -> %s',
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revid, revidmap[revid])
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result.new_revno, result.new_revid = self.target.last_revision_info()
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result.revidmap = revidmap
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class DummyForeignVcsBranchFormat(branch.BzrBranchFormat6):
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def get_format_string(cls):
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return "Branch for Testing"
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def _matchingbzrdir(self):
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return DummyForeignVcsDirFormat()
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def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False,
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found_repository=None):
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name = a_bzrdir._get_selected_branch()
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raise NotImplementedError
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transport = a_bzrdir.get_branch_transport(None, name=name)
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control_files = lockable_files.LockableFiles(transport, 'lock',
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if found_repository is None:
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found_repository = a_bzrdir.find_repository()
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return DummyForeignVcsBranch(_format=self,
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_control_files=control_files,
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_repository=found_repository,
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except errors.NoSuchFile:
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raise errors.NotBranchError(path=transport.base)
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class DummyForeignVcsDirFormat(bzrdir.BzrDirMetaFormat1):
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"""BzrDirFormat for the dummy foreign VCS."""
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def get_format_string(cls):
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return "A Dummy VCS Dir"
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def get_format_description(cls):
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return "A Dummy VCS Dir"
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def is_supported(cls):
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def get_branch_format(self):
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return DummyForeignVcsBranchFormat()
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def repository_format(self):
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return DummyForeignVcsRepositoryFormat()
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def initialize_on_transport(self, transport):
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"""Initialize a new bzrdir in the base directory of a Transport."""
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# Since we don't have a .bzr directory, inherit the
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# mode from the root directory
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temp_control = lockable_files.LockableFiles(transport,
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'', lockable_files.TransportLock)
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temp_control._transport.mkdir('.dummy',
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# FIXME: RBC 20060121 don't peek under
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mode=temp_control._dir_mode)
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bzrdir_transport = transport.clone('.dummy')
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# NB: no need to escape relative paths that are url safe.
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control_files = lockable_files.LockableFiles(bzrdir_transport,
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self._lock_file_name, self._lock_class)
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control_files.create_lock()
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return self.open(transport, _found=True)
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def _open(self, transport):
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return DummyForeignVcsDir(transport, self)
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class DummyForeignVcsDir(bzrdir.BzrDirMeta1):
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def __init__(self, _transport, _format):
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self._format = _format
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self.transport = _transport.clone('.dummy')
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self.root_transport = _transport
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self._mode_check_done = False
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self._control_files = lockable_files.LockableFiles(self.transport,
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"lock", lockable_files.TransportLock)
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def create_workingtree(self):
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# dirstate requires a ".bzr" entry to exist
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self.root_transport.put_bytes(".bzr", "foo")
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return super(DummyForeignVcsDir, self).create_workingtree()
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def open_branch(self, name=None, unsupported=False, ignore_fallbacks=True,
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possible_transports=None):
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name = self._get_selected_branch()
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raise errors.NoColocatedBranchSupport(self)
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return self._format.get_branch_format().open(self, _found=True)
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def cloning_metadir(self, stacked=False):
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"""Produce a metadir suitable for cloning with."""
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return controldir.format_registry.make_bzrdir("default")
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def checkout_metadir(self):
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return self.cloning_metadir()
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def sprout(self, url, revision_id=None, force_new_repo=False,
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recurse='down', possible_transports=None,
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accelerator_tree=None, hardlink=False, stacked=False,
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# dirstate doesn't cope with accelerator_trees well
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# that have a different control dir
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return super(DummyForeignVcsDir, self).sprout(url=url,
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revision_id=revision_id, force_new_repo=force_new_repo,
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recurse=recurse, possible_transports=possible_transports,
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hardlink=hardlink, stacked=stacked, source_branch=source_branch)
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def register_dummy_foreign_for_test(testcase):
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controldir.ControlDirFormat.register_prober(DummyForeignProber)
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testcase.addCleanup(controldir.ControlDirFormat.unregister_prober,
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repository.format_registry.register(DummyForeignVcsRepositoryFormat())
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testcase.addCleanup(repository.format_registry.remove,
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DummyForeignVcsRepositoryFormat())
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branch.format_registry.register(DummyForeignVcsBranchFormat())
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testcase.addCleanup(branch.format_registry.remove,
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DummyForeignVcsBranchFormat())
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# We need to register the optimiser to make the dummy appears really
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# different from a regular bzr repository.
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branch.InterBranch.register_optimiser(InterToDummyVcsBranch)
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testcase.addCleanup(branch.InterBranch.unregister_optimiser,
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InterToDummyVcsBranch)
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class DummyForeignProber(controldir.Prober):
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def probe_transport(klass, transport):
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"""Return the .bzrdir style format present in a directory."""
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if not transport.has('.dummy'):
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raise errors.NotBranchError(path=transport.base)
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return DummyForeignVcsDirFormat()
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def known_formats(cls):
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return set([DummyForeignVcsDirFormat()])
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class ForeignVcsRegistryTests(tests.TestCase):
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"""Tests for the ForeignVcsRegistry class."""
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def test_parse_revision_id_no_dash(self):
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reg = foreign.ForeignVcsRegistry()
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self.assertRaises(errors.InvalidRevisionId,
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reg.parse_revision_id, "invalid")
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def test_parse_revision_id_unknown_mapping(self):
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reg = foreign.ForeignVcsRegistry()
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self.assertRaises(errors.InvalidRevisionId,
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reg.parse_revision_id, "unknown-foreignrevid")
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def test_parse_revision_id(self):
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reg = foreign.ForeignVcsRegistry()
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vcs = DummyForeignVcs()
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reg.register("dummy", vcs, "Dummy VCS")
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("some", "foreign", "revid"), DummyForeignVcsMapping(vcs)),
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reg.parse_revision_id("dummy-v1:some-foreign-revid"))
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class ForeignRevisionTests(tests.TestCase):
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"""Tests for the ForeignRevision class."""
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def test_create(self):
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mapp = DummyForeignVcsMapping(DummyForeignVcs())
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rev = foreign.ForeignRevision(("a", "foreign", "revid"),
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mapp, "roundtripped-revid")
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self.assertEquals("", rev.inventory_sha1)
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self.assertEquals(("a", "foreign", "revid"), rev.foreign_revid)
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self.assertEquals(mapp, rev.mapping)
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class WorkingTreeFileUpdateTests(tests.TestCaseWithTransport):
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"""Tests for update_workingtree_fileids()."""
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def test_update_workingtree(self):
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wt = self.make_branch_and_tree('br1')
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self.build_tree_contents([('br1/bla', 'original contents\n')])
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wt.add('bla', 'bla-a')
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root_id = wt.get_root_id()
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target = wt.bzrdir.sprout('br2').open_workingtree()
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target.unversion(['bla-a'])
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target.add('bla', 'bla-b')
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target.commit('bla-b')
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target_basis = target.basis_tree()
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target_basis.lock_read()
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self.addCleanup(target_basis.unlock)
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foreign.update_workingtree_fileids(wt, target_basis)
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self.assertEquals(set([root_id, "bla-b"]), set(wt.all_file_ids()))
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class DummyForeignVcsTests(tests.TestCaseWithTransport):
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"""Very basic test for DummyForeignVcs."""
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super(DummyForeignVcsTests, self).setUp()
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register_dummy_foreign_for_test(self)
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def test_create(self):
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"""Test we can create dummies."""
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self.make_branch_and_tree("d", format=DummyForeignVcsDirFormat())
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dir = controldir.ControlDir.open("d")
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self.assertEquals("A Dummy VCS Dir", dir._format.get_format_string())
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dir.open_repository()
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dir.open_workingtree()
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def test_sprout(self):
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"""Test we can clone dummies and that the format is not preserved."""
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self.make_branch_and_tree("d", format=DummyForeignVcsDirFormat())
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dir = controldir.ControlDir.open("d")
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newdir = dir.sprout("e")
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self.assertNotEquals("A Dummy VCS Dir",
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newdir._format.get_format_string())
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def test_push_not_supported(self):
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source_tree = self.make_branch_and_tree("source")
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target_tree = self.make_branch_and_tree("target",
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format=DummyForeignVcsDirFormat())
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self.assertRaises(errors.NoRoundtrippingSupport,
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source_tree.branch.push, target_tree.branch)
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def test_lossy_push_empty(self):
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source_tree = self.make_branch_and_tree("source")
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target_tree = self.make_branch_and_tree("target",
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format=DummyForeignVcsDirFormat())
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pushresult = source_tree.branch.push(target_tree.branch, lossy=True)
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self.assertEquals(revision.NULL_REVISION, pushresult.old_revid)
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self.assertEquals(revision.NULL_REVISION, pushresult.new_revid)
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self.assertEquals({}, pushresult.revidmap)
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def test_lossy_push_simple(self):
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source_tree = self.make_branch_and_tree("source")
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self.build_tree(['source/a', 'source/b'])
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source_tree.add(['a', 'b'])
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revid1 = source_tree.commit("msg")
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target_tree = self.make_branch_and_tree("target",
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format=DummyForeignVcsDirFormat())
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target_tree.branch.lock_write()
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pushresult = source_tree.branch.push(
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target_tree.branch, lossy=True)
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target_tree.branch.unlock()
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self.assertEquals(revision.NULL_REVISION, pushresult.old_revid)
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self.assertEquals({revid1:target_tree.branch.last_revision()},
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self.assertEquals(pushresult.revidmap[revid1], pushresult.new_revid)
added
removed
bzrlib/tests/test_foreign.py
