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Viewing changes to bzrlib/tests/test_foreign.py

(jameinel) Allow 'bzr serve' to interpret SIGHUP as a graceful shutdown.
 (bug #795025) (John A Meinel)

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bzrlib/tests/test_foreign.py
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# Copyright (C) 2008, 2009, 2010 Canonical Ltd
 
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# Copyright (C) 2008-2011 Canonical Ltd
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#
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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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from bzrlib import (
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    branch,
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    bzrdir,
 
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    controldir,
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    errors,
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    foreign,
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    lockable_files,
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    lockdir,
 
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    repository,
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    revision,
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    tests,
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    trace,
 
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    vf_repository,
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    )
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35
 
 
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from bzrlib.repofmt import groupcompress_repo
 
37
 
33
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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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        self._base = a_bzrdir.transport.base
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        self._ignore_fallbacks = False
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        self.bzrdir = a_bzrdir
94
 
        foreign.ForeignBranch.__init__(self, 
 
99
        foreign.ForeignBranch.__init__(self,
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            DummyForeignVcsMapping(DummyForeignVcs()))
96
 
        branch.BzrBranch6.__init__(self, _format, _control_files, a_bzrdir, 
 
101
        branch.BzrBranch6.__init__(self, _format, _control_files, a_bzrdir,
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            *args, **kwargs)
98
103
 
99
 
 
100
 
class InterToDummyVcsBranch(branch.GenericInterBranch,
101
 
                            foreign.InterToForeignBranch):
 
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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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        """
 
108
        return self.bzrdir.checkout_metadir()
 
109
 
 
110
    def import_last_revision_info_and_tags(self, source, revno, revid,
 
111
                                           lossy=False):
 
112
        interbranch = InterToDummyVcsBranch(source, self)
 
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        result = interbranch.push(stop_revision=revid, lossy=True)
 
114
        if lossy:
 
115
            revid = result.revidmap[revid]
 
116
        return (revno, revid)
 
117
 
 
118
 
 
119
class DummyForeignCommitBuilder(vf_repository.VersionedFileRootCommitBuilder):
 
120
 
 
121
    def _generate_revision_if_needed(self):
 
122
        mapping = DummyForeignVcsMapping(DummyForeignVcs())
 
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        if self._lossy:
 
124
            self._new_revision_id = mapping.revision_id_foreign_to_bzr(
 
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                (str(self._timestamp), str(self._timezone), "UNKNOWN"))
 
126
            self.random_revid = False
 
127
        elif self._new_revision_id is not None:
 
128
            self.random_revid = False
 
129
        else:
 
130
            self._new_revision_id = self._gen_revision_id()
 
131
            self.random_revid = True
 
132
 
 
133
 
 
134
class DummyForeignVcsRepository(groupcompress_repo.CHKInventoryRepository,
 
135
    foreign.ForeignRepository):
 
136
    """Dummy foreign vcs repository."""
 
137
 
 
138
 
 
139
class DummyForeignVcsRepositoryFormat(groupcompress_repo.RepositoryFormat2a):
 
140
 
 
141
    repository_class = DummyForeignVcsRepository
 
142
    _commit_builder_class = DummyForeignCommitBuilder
 
143
 
 
144
    def get_format_string(self):
 
145
        return "Dummy Foreign Vcs Repository"
 
146
 
 
147
    def get_format_description(self):
 
148
        return "Dummy Foreign Vcs Repository"
 
149
 
 
150
 
 
151
class InterToDummyVcsBranch(branch.GenericInterBranch):
102
152
 
103
153
    @staticmethod
104
154
    def is_compatible(source, target):
105
155
        return isinstance(target, DummyForeignVcsBranch)
106
156
 
107
 
    def push(self, overwrite=False, stop_revision=None):
108
 
        raise errors.NoRoundtrippingSupport(self.source, self.target)
109
 
 
110
 
    def lossy_push(self, stop_revision=None):
 
157
    def push(self, overwrite=False, stop_revision=None, lossy=False):
 
158
        if not lossy:
 
159
            raise errors.NoRoundtrippingSupport(self.source, self.target)
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160
        result = branch.BranchPushResult()
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161
        result.source_branch = self.source
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162
        result.target_branch = self.target
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163
        result.old_revno, result.old_revid = self.target.last_revision_info()
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164
        self.source.lock_read()
116
165
        try:
 
166
            graph = self.source.repository.get_graph()
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167
            # This just handles simple cases, but that's good enough for tests
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168
            my_history = self.target.revision_history()
119
 
            their_history = self.source.revision_history()
 
169
            if stop_revision is None:
 
170
                stop_revision = self.source.last_revision()
 
171
            their_history = list(graph.iter_lefthand_ancestry(stop_revision,
 
172
                (revision.NULL_REVISION,)))
 
173
            their_history.reverse()
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174
            if their_history[:min(len(my_history), len(their_history))] != my_history:
121
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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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182
                    return (tree.get_file(file_id), None)
129
183
                tree.get_file_with_stat = get_file_with_stat
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184
                new_revid = self.target.mapping.revision_id_foreign_to_bzr(
131
 
                    (str(rev.timestamp), str(rev.timezone), 
 
185
                    (str(rev.timestamp), str(rev.timezone),
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186
                        str(self.target.revno())))
133
187
                parent_revno, parent_revid= self.target.last_revision_info()
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188
                if parent_revid == revision.NULL_REVISION:
172
226
        super(DummyForeignVcsBranchFormat, self).__init__()
173
227
        self._matchingbzrdir = DummyForeignVcsDirFormat()
174
228
 
175
 
    def open(self, a_bzrdir, name=None, _found=False):
 
229
    def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False,
 
230
            found_repository=None):
176
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        if not _found:
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            raise NotImplementedError
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233
        try:
179
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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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                                                         lockdir.LockDir)
 
237
            if found_repository is None:
 
238
                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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241
                              a_bzrdir=a_bzrdir,
185
 
                              _repository=a_bzrdir.find_repository())
 
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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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    def get_branch_format(self):
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        return DummyForeignVcsBranchFormat()
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264
 
208
 
    @classmethod
209
 
    def probe_transport(klass, transport):
210
 
        """Return the .bzrdir style format present in a directory."""
211
 
        if not transport.has('.dummy'):
212
 
            raise errors.NotBranchError(path=transport.base)
213
 
        return klass()
 
265
    @property
 
266
    def repository_format(self):
 
267
        return DummyForeignVcsRepositoryFormat()
214
268
 
215
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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."""
244
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        self._control_files = lockable_files.LockableFiles(self.transport,
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            "lock", lockable_files.TransportLock)
246
300
 
 
301
    def create_workingtree(self):
 
302
        # dirstate requires a ".bzr" entry to exist
 
303
        self.root_transport.put_bytes(".bzr", "foo")
 
304
        return super(DummyForeignVcsDir, self).create_workingtree()
 
305
 
247
306
    def open_branch(self, name=None, unsupported=False, ignore_fallbacks=True):
248
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        if name is not None:
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            raise errors.NoColocatedBranchSupport(self)
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312
        """Produce a metadir suitable for cloning with."""
254
313
        return bzrdir.format_registry.make_bzrdir("default")
255
314
 
 
315
    def checkout_metadir(self):
 
316
        return self.cloning_metadir()
 
317
 
256
318
    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,
266
328
 
267
329
 
268
330
def register_dummy_foreign_for_test(testcase):
269
 
    bzrdir.BzrDirFormat.register_control_format(DummyForeignVcsDirFormat)
270
 
    testcase.addCleanup(bzrdir.BzrDirFormat.unregister_control_format,
271
 
                        DummyForeignVcsDirFormat)
 
331
    controldir.ControlDirFormat.register_prober(DummyForeignProber)
 
332
    testcase.addCleanup(controldir.ControlDirFormat.unregister_prober,
 
333
        DummyForeignProber)
 
334
    repository.format_registry.register(DummyForeignVcsRepositoryFormat())
 
335
    testcase.addCleanup(repository.format_registry.remove,
 
336
            DummyForeignVcsRepositoryFormat())
 
337
    branch.format_registry.register(DummyForeignVcsBranchFormat())
 
338
    testcase.addCleanup(branch.format_registry.remove,
 
339
            DummyForeignVcsBranchFormat())
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340
    # We need to register the optimiser to make the dummy appears really
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    # different from a regular bzr repository.
274
342
    branch.InterBranch.register_optimiser(InterToDummyVcsBranch)
276
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                        InterToDummyVcsBranch)
277
345
 
278
346
 
 
347
class DummyForeignProber(controldir.Prober):
 
348
 
 
349
    @classmethod
 
350
    def probe_transport(klass, transport):
 
351
        """Return the .bzrdir style format present in a directory."""
 
352
        if not transport.has('.dummy'):
 
353
            raise errors.NotBranchError(path=transport.base)
 
354
        return DummyForeignVcsDirFormat()
 
355
 
 
356
    @classmethod
 
357
    def known_formats(cls):
 
358
        return set([DummyForeignVcsDirFormat()])
 
359
 
 
360
 
279
361
class ForeignVcsRegistryTests(tests.TestCase):
280
362
    """Tests for the ForeignVcsRegistry class."""
281
363
 
293
375
        reg = foreign.ForeignVcsRegistry()
294
376
        vcs = DummyForeignVcs()
295
377
        reg.register("dummy", vcs, "Dummy VCS")
296
 
        self.assertEquals((("some", "foreign", "revid"), DummyForeignVcsMapping(vcs)),
297
 
                          reg.parse_revision_id("dummy-v1:some-foreign-revid"))
 
378
        self.assertEquals((
 
379
            ("some", "foreign", "revid"), DummyForeignVcsMapping(vcs)),
 
380
            reg.parse_revision_id("dummy-v1:some-foreign-revid"))
298
381
 
299
382
 
300
383
class ForeignRevisionTests(tests.TestCase):
368
451
        source_tree = self.make_branch_and_tree("source")
369
452
        target_tree = self.make_branch_and_tree("target", 
370
453
            format=DummyForeignVcsDirFormat())
371
 
        pushresult = source_tree.branch.lossy_push(target_tree.branch)
 
454
        pushresult = source_tree.branch.push(target_tree.branch, lossy=True)
372
455
        self.assertEquals(revision.NULL_REVISION, pushresult.old_revid)
373
456
        self.assertEquals(revision.NULL_REVISION, pushresult.new_revid)
374
457
        self.assertEquals({}, pushresult.revidmap)
382
465
            format=DummyForeignVcsDirFormat())
383
466
        target_tree.branch.lock_write()
384
467
        try:
385
 
            pushresult = source_tree.branch.lossy_push(target_tree.branch)
 
468
            pushresult = source_tree.branch.push(target_tree.branch, lossy=True)
386
469
        finally:
387
470
            target_tree.branch.unlock()
388
471
        self.assertEquals(revision.NULL_REVISION, pushresult.old_revid)