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  • Committer: Robert Collins
  • Date: 2010-05-06 11:08:10 UTC
  • mto: This revision was merged to the branch mainline in revision 5223.
  • Revision ID: robertc@robertcollins.net-20100506110810-h3j07fh5gmw54s25
Cleaner matcher matching revised unlocking protocol.

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1
 
# Copyright (C) 2006-2011 Canonical Ltd
 
1
# Copyright (C) 2006-2010 Canonical Ltd
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
19
19
from bzrlib import (
20
20
    bencode,
21
21
    branch,
22
 
    bzrdir as _mod_bzrdir,
 
22
    bzrdir,
23
23
    config,
24
 
    controldir,
25
24
    debug,
26
25
    errors,
27
26
    graph,
28
27
    lock,
29
28
    lockdir,
 
29
    repository,
30
30
    repository as _mod_repository,
 
31
    revision,
31
32
    revision as _mod_revision,
32
33
    static_tuple,
33
34
    symbol_versioning,
34
 
    urlutils,
35
 
    vf_repository,
36
 
    )
37
 
from bzrlib.branch import BranchReferenceFormat, BranchWriteLockResult
 
35
)
 
36
from bzrlib.branch import BranchReferenceFormat
 
37
from bzrlib.bzrdir import BzrDir, RemoteBzrDirFormat
38
38
from bzrlib.decorators import needs_read_lock, needs_write_lock, only_raises
39
39
from bzrlib.errors import (
40
40
    NoSuchRevision,
42
42
    )
43
43
from bzrlib.lockable_files import LockableFiles
44
44
from bzrlib.smart import client, vfs, repository as smart_repo
45
 
from bzrlib.smart.client import _SmartClient
46
 
from bzrlib.revision import NULL_REVISION
47
 
from bzrlib.repository import RepositoryWriteLockResult, _LazyListJoin
 
45
from bzrlib.revision import ensure_null, NULL_REVISION
48
46
from bzrlib.trace import mutter, note, warning
49
47
 
50
48
 
88
86
    return format
89
87
 
90
88
 
91
 
# Note that RemoteBzrDirProber lives in bzrlib.bzrdir so bzrlib.remote
92
 
# does not have to be imported unless a remote format is involved.
93
 
 
94
 
class RemoteBzrDirFormat(_mod_bzrdir.BzrDirMetaFormat1):
95
 
    """Format representing bzrdirs accessed via a smart server"""
96
 
 
97
 
    supports_workingtrees = False
98
 
 
99
 
    def __init__(self):
100
 
        _mod_bzrdir.BzrDirMetaFormat1.__init__(self)
101
 
        # XXX: It's a bit ugly that the network name is here, because we'd
102
 
        # like to believe that format objects are stateless or at least
103
 
        # immutable,  However, we do at least avoid mutating the name after
104
 
        # it's returned.  See <https://bugs.launchpad.net/bzr/+bug/504102>
105
 
        self._network_name = None
106
 
 
107
 
    def __repr__(self):
108
 
        return "%s(_network_name=%r)" % (self.__class__.__name__,
109
 
            self._network_name)
110
 
 
111
 
    def get_format_description(self):
112
 
        if self._network_name:
113
 
            real_format = controldir.network_format_registry.get(self._network_name)
114
 
            return 'Remote: ' + real_format.get_format_description()
115
 
        return 'bzr remote bzrdir'
116
 
 
117
 
    def get_format_string(self):
118
 
        raise NotImplementedError(self.get_format_string)
119
 
 
120
 
    def network_name(self):
121
 
        if self._network_name:
122
 
            return self._network_name
123
 
        else:
124
 
            raise AssertionError("No network name set.")
125
 
 
126
 
    def initialize_on_transport(self, transport):
127
 
        try:
128
 
            # hand off the request to the smart server
129
 
            client_medium = transport.get_smart_medium()
130
 
        except errors.NoSmartMedium:
131
 
            # TODO: lookup the local format from a server hint.
132
 
            local_dir_format = _mod_bzrdir.BzrDirMetaFormat1()
133
 
            return local_dir_format.initialize_on_transport(transport)
134
 
        client = _SmartClient(client_medium)
135
 
        path = client.remote_path_from_transport(transport)
136
 
        try:
137
 
            response = client.call('BzrDirFormat.initialize', path)
138
 
        except errors.ErrorFromSmartServer, err:
139
 
            _translate_error(err, path=path)
140
 
        if response[0] != 'ok':
141
 
            raise errors.SmartProtocolError('unexpected response code %s' % (response,))
142
 
        format = RemoteBzrDirFormat()
143
 
        self._supply_sub_formats_to(format)
144
 
        return RemoteBzrDir(transport, format)
145
 
 
146
 
    def parse_NoneTrueFalse(self, arg):
147
 
        if not arg:
148
 
            return None
149
 
        if arg == 'False':
150
 
            return False
151
 
        if arg == 'True':
152
 
            return True
153
 
        raise AssertionError("invalid arg %r" % arg)
154
 
 
155
 
    def _serialize_NoneTrueFalse(self, arg):
156
 
        if arg is False:
157
 
            return 'False'
158
 
        if arg:
159
 
            return 'True'
160
 
        return ''
161
 
 
162
 
    def _serialize_NoneString(self, arg):
163
 
        return arg or ''
164
 
 
165
 
    def initialize_on_transport_ex(self, transport, use_existing_dir=False,
166
 
        create_prefix=False, force_new_repo=False, stacked_on=None,
167
 
        stack_on_pwd=None, repo_format_name=None, make_working_trees=None,
168
 
        shared_repo=False):
169
 
        try:
170
 
            # hand off the request to the smart server
171
 
            client_medium = transport.get_smart_medium()
172
 
        except errors.NoSmartMedium:
173
 
            do_vfs = True
174
 
        else:
175
 
            # Decline to open it if the server doesn't support our required
176
 
            # version (3) so that the VFS-based transport will do it.
177
 
            if client_medium.should_probe():
178
 
                try:
179
 
                    server_version = client_medium.protocol_version()
180
 
                    if server_version != '2':
181
 
                        do_vfs = True
182
 
                    else:
183
 
                        do_vfs = False
184
 
                except errors.SmartProtocolError:
185
 
                    # Apparently there's no usable smart server there, even though
186
 
                    # the medium supports the smart protocol.
187
 
                    do_vfs = True
188
 
            else:
189
 
                do_vfs = False
190
 
        if not do_vfs:
191
 
            client = _SmartClient(client_medium)
192
 
            path = client.remote_path_from_transport(transport)
193
 
            if client_medium._is_remote_before((1, 16)):
194
 
                do_vfs = True
195
 
        if do_vfs:
196
 
            # TODO: lookup the local format from a server hint.
197
 
            local_dir_format = _mod_bzrdir.BzrDirMetaFormat1()
198
 
            self._supply_sub_formats_to(local_dir_format)
199
 
            return local_dir_format.initialize_on_transport_ex(transport,
200
 
                use_existing_dir=use_existing_dir, create_prefix=create_prefix,
201
 
                force_new_repo=force_new_repo, stacked_on=stacked_on,
202
 
                stack_on_pwd=stack_on_pwd, repo_format_name=repo_format_name,
203
 
                make_working_trees=make_working_trees, shared_repo=shared_repo,
204
 
                vfs_only=True)
205
 
        return self._initialize_on_transport_ex_rpc(client, path, transport,
206
 
            use_existing_dir, create_prefix, force_new_repo, stacked_on,
207
 
            stack_on_pwd, repo_format_name, make_working_trees, shared_repo)
208
 
 
209
 
    def _initialize_on_transport_ex_rpc(self, client, path, transport,
210
 
        use_existing_dir, create_prefix, force_new_repo, stacked_on,
211
 
        stack_on_pwd, repo_format_name, make_working_trees, shared_repo):
212
 
        args = []
213
 
        args.append(self._serialize_NoneTrueFalse(use_existing_dir))
214
 
        args.append(self._serialize_NoneTrueFalse(create_prefix))
215
 
        args.append(self._serialize_NoneTrueFalse(force_new_repo))
216
 
        args.append(self._serialize_NoneString(stacked_on))
217
 
        # stack_on_pwd is often/usually our transport
218
 
        if stack_on_pwd:
219
 
            try:
220
 
                stack_on_pwd = transport.relpath(stack_on_pwd)
221
 
                if not stack_on_pwd:
222
 
                    stack_on_pwd = '.'
223
 
            except errors.PathNotChild:
224
 
                pass
225
 
        args.append(self._serialize_NoneString(stack_on_pwd))
226
 
        args.append(self._serialize_NoneString(repo_format_name))
227
 
        args.append(self._serialize_NoneTrueFalse(make_working_trees))
228
 
        args.append(self._serialize_NoneTrueFalse(shared_repo))
229
 
        request_network_name = self._network_name or \
230
 
            _mod_bzrdir.BzrDirFormat.get_default_format().network_name()
231
 
        try:
232
 
            response = client.call('BzrDirFormat.initialize_ex_1.16',
233
 
                request_network_name, path, *args)
234
 
        except errors.UnknownSmartMethod:
235
 
            client._medium._remember_remote_is_before((1,16))
236
 
            local_dir_format = _mod_bzrdir.BzrDirMetaFormat1()
237
 
            self._supply_sub_formats_to(local_dir_format)
238
 
            return local_dir_format.initialize_on_transport_ex(transport,
239
 
                use_existing_dir=use_existing_dir, create_prefix=create_prefix,
240
 
                force_new_repo=force_new_repo, stacked_on=stacked_on,
241
 
                stack_on_pwd=stack_on_pwd, repo_format_name=repo_format_name,
242
 
                make_working_trees=make_working_trees, shared_repo=shared_repo,
243
 
                vfs_only=True)
244
 
        except errors.ErrorFromSmartServer, err:
245
 
            _translate_error(err, path=path)
246
 
        repo_path = response[0]
247
 
        bzrdir_name = response[6]
248
 
        require_stacking = response[7]
249
 
        require_stacking = self.parse_NoneTrueFalse(require_stacking)
250
 
        format = RemoteBzrDirFormat()
251
 
        format._network_name = bzrdir_name
252
 
        self._supply_sub_formats_to(format)
253
 
        bzrdir = RemoteBzrDir(transport, format, _client=client)
254
 
        if repo_path:
255
 
            repo_format = response_tuple_to_repo_format(response[1:])
256
 
            if repo_path == '.':
257
 
                repo_path = ''
258
 
            if repo_path:
259
 
                repo_bzrdir_format = RemoteBzrDirFormat()
260
 
                repo_bzrdir_format._network_name = response[5]
261
 
                repo_bzr = RemoteBzrDir(transport.clone(repo_path),
262
 
                    repo_bzrdir_format)
263
 
            else:
264
 
                repo_bzr = bzrdir
265
 
            final_stack = response[8] or None
266
 
            final_stack_pwd = response[9] or None
267
 
            if final_stack_pwd:
268
 
                final_stack_pwd = urlutils.join(
269
 
                    transport.base, final_stack_pwd)
270
 
            remote_repo = RemoteRepository(repo_bzr, repo_format)
271
 
            if len(response) > 10:
272
 
                # Updated server verb that locks remotely.
273
 
                repo_lock_token = response[10] or None
274
 
                remote_repo.lock_write(repo_lock_token, _skip_rpc=True)
275
 
                if repo_lock_token:
276
 
                    remote_repo.dont_leave_lock_in_place()
277
 
            else:
278
 
                remote_repo.lock_write()
279
 
            policy = _mod_bzrdir.UseExistingRepository(remote_repo, final_stack,
280
 
                final_stack_pwd, require_stacking)
281
 
            policy.acquire_repository()
282
 
        else:
283
 
            remote_repo = None
284
 
            policy = None
285
 
        bzrdir._format.set_branch_format(self.get_branch_format())
286
 
        if require_stacking:
287
 
            # The repo has already been created, but we need to make sure that
288
 
            # we'll make a stackable branch.
289
 
            bzrdir._format.require_stacking(_skip_repo=True)
290
 
        return remote_repo, bzrdir, require_stacking, policy
291
 
 
292
 
    def _open(self, transport):
293
 
        return RemoteBzrDir(transport, self)
294
 
 
295
 
    def __eq__(self, other):
296
 
        if not isinstance(other, RemoteBzrDirFormat):
297
 
            return False
298
 
        return self.get_format_description() == other.get_format_description()
299
 
 
300
 
    def __return_repository_format(self):
301
 
        # Always return a RemoteRepositoryFormat object, but if a specific bzr
302
 
        # repository format has been asked for, tell the RemoteRepositoryFormat
303
 
        # that it should use that for init() etc.
304
 
        result = RemoteRepositoryFormat()
305
 
        custom_format = getattr(self, '_repository_format', None)
306
 
        if custom_format:
307
 
            if isinstance(custom_format, RemoteRepositoryFormat):
308
 
                return custom_format
309
 
            else:
310
 
                # We will use the custom format to create repositories over the
311
 
                # wire; expose its details like rich_root_data for code to
312
 
                # query
313
 
                result._custom_format = custom_format
314
 
        return result
315
 
 
316
 
    def get_branch_format(self):
317
 
        result = _mod_bzrdir.BzrDirMetaFormat1.get_branch_format(self)
318
 
        if not isinstance(result, RemoteBranchFormat):
319
 
            new_result = RemoteBranchFormat()
320
 
            new_result._custom_format = result
321
 
            # cache the result
322
 
            self.set_branch_format(new_result)
323
 
            result = new_result
324
 
        return result
325
 
 
326
 
    repository_format = property(__return_repository_format,
327
 
        _mod_bzrdir.BzrDirMetaFormat1._set_repository_format) #.im_func)
328
 
 
329
 
 
330
 
class RemoteBzrDir(_mod_bzrdir.BzrDir, _RpcHelper):
 
89
# Note: RemoteBzrDirFormat is in bzrdir.py
 
90
 
 
91
class RemoteBzrDir(BzrDir, _RpcHelper):
331
92
    """Control directory on a remote server, accessed via bzr:// or similar."""
332
93
 
333
94
    def __init__(self, transport, format, _client=None, _force_probe=False):
336
97
        :param _client: Private parameter for testing. Disables probing and the
337
98
            use of a real bzrdir.
338
99
        """
339
 
        _mod_bzrdir.BzrDir.__init__(self, transport, format)
 
100
        BzrDir.__init__(self, transport, format)
340
101
        # this object holds a delegated bzrdir that uses file-level operations
341
102
        # to talk to the other side
342
103
        self._real_bzrdir = None
402
163
                import traceback
403
164
                warning('VFS BzrDir access triggered\n%s',
404
165
                    ''.join(traceback.format_stack()))
405
 
            self._real_bzrdir = _mod_bzrdir.BzrDir.open_from_transport(
 
166
            self._real_bzrdir = BzrDir.open_from_transport(
406
167
                self.root_transport, _server_formats=False)
407
168
            self._format._network_name = \
408
169
                self._real_bzrdir._format.network_name()
414
175
        # Prevent aliasing problems in the next_open_branch_result cache.
415
176
        # See create_branch for rationale.
416
177
        self._next_open_branch_result = None
417
 
        return _mod_bzrdir.BzrDir.break_lock(self)
 
178
        return BzrDir.break_lock(self)
418
179
 
419
180
    def _vfs_cloning_metadir(self, require_stacking=False):
420
181
        self._ensure_real()
451
212
        if len(branch_info) != 2:
452
213
            raise errors.UnexpectedSmartServerResponse(response)
453
214
        branch_ref, branch_name = branch_info
454
 
        format = controldir.network_format_registry.get(control_name)
 
215
        format = bzrdir.network_format_registry.get(control_name)
455
216
        if repo_name:
456
 
            format.repository_format = _mod_repository.network_format_registry.get(
 
217
            format.repository_format = repository.network_format_registry.get(
457
218
                repo_name)
458
219
        if branch_ref == 'ref':
459
220
            # XXX: we need possible_transports here to avoid reopening the
460
221
            # connection to the referenced location
461
 
            ref_bzrdir = _mod_bzrdir.BzrDir.open(branch_name)
 
222
            ref_bzrdir = BzrDir.open(branch_name)
462
223
            branch_format = ref_bzrdir.cloning_metadir().get_branch_format()
463
224
            format.set_branch_format(branch_format)
464
225
        elif branch_ref == 'branch':
483
244
        self._ensure_real()
484
245
        self._real_bzrdir.destroy_repository()
485
246
 
486
 
    def create_branch(self, name=None, repository=None):
 
247
    def create_branch(self, name=None):
487
248
        # as per meta1 formats - just delegate to the format object which may
488
249
        # be parameterised.
489
250
        real_branch = self._format.get_branch_format().initialize(self,
490
 
            name=name, repository=repository)
 
251
            name=name)
491
252
        if not isinstance(real_branch, RemoteBranch):
492
 
            if not isinstance(repository, RemoteRepository):
493
 
                raise AssertionError(
494
 
                    'need a RemoteRepository to use with RemoteBranch, got %r'
495
 
                    % (repository,))
496
 
            result = RemoteBranch(self, repository, real_branch, name=name)
 
253
            result = RemoteBranch(self, self.find_repository(), real_branch,
 
254
                                  name=name)
497
255
        else:
498
256
            result = real_branch
499
257
        # BzrDir.clone_on_transport() uses the result of create_branch but does
511
269
        self._real_bzrdir.destroy_branch(name=name)
512
270
        self._next_open_branch_result = None
513
271
 
514
 
    def create_workingtree(self, revision_id=None, from_branch=None,
515
 
        accelerator_tree=None, hardlink=False):
 
272
    def create_workingtree(self, revision_id=None, from_branch=None):
516
273
        raise errors.NotLocalUrl(self.transport.base)
517
274
 
518
 
    def find_branch_format(self, name=None):
 
275
    def find_branch_format(self):
519
276
        """Find the branch 'format' for this bzrdir.
520
277
 
521
278
        This might be a synthetic object for e.g. RemoteBranch and SVN.
522
279
        """
523
 
        b = self.open_branch(name=name)
 
280
        b = self.open_branch()
524
281
        return b._format
525
282
 
526
 
    def get_branch_reference(self, name=None):
 
283
    def get_branch_reference(self):
527
284
        """See BzrDir.get_branch_reference()."""
528
 
        if name is not None:
529
 
            # XXX JRV20100304: Support opening colocated branches
530
 
            raise errors.NoColocatedBranchSupport(self)
531
285
        response = self._get_branch_reference()
532
286
        if response[0] == 'ref':
533
287
            return response[1]
564
318
            raise errors.UnexpectedSmartServerResponse(response)
565
319
        return response
566
320
 
567
 
    def _get_tree_branch(self, name=None):
 
321
    def _get_tree_branch(self):
568
322
        """See BzrDir._get_tree_branch()."""
569
 
        return None, self.open_branch(name=name)
 
323
        return None, self.open_branch()
570
324
 
571
325
    def open_branch(self, name=None, unsupported=False,
572
326
                    ignore_fallbacks=False):
687
441
        """Upgrading of remote bzrdirs is not supported yet."""
688
442
        return False
689
443
 
690
 
    def needs_format_conversion(self, format):
 
444
    def needs_format_conversion(self, format=None):
691
445
        """Upgrading of remote bzrdirs is not supported yet."""
 
446
        if format is None:
 
447
            symbol_versioning.warn(symbol_versioning.deprecated_in((1, 13, 0))
 
448
                % 'needs_format_conversion(format=None)')
692
449
        return False
693
450
 
694
451
    def clone(self, url, revision_id=None, force_new_repo=False,
701
458
        return RemoteBzrDirConfig(self)
702
459
 
703
460
 
704
 
class RemoteRepositoryFormat(vf_repository.VersionedFileRepositoryFormat):
 
461
class RemoteRepositoryFormat(repository.RepositoryFormat):
705
462
    """Format for repositories accessed over a _SmartClient.
706
463
 
707
464
    Instances of this repository are represented by RemoteRepository
722
479
    """
723
480
 
724
481
    _matchingbzrdir = RemoteBzrDirFormat()
725
 
    supports_full_versioned_files = True
726
 
    supports_leaving_lock = True
727
482
 
728
483
    def __init__(self):
729
 
        _mod_repository.RepositoryFormat.__init__(self)
 
484
        repository.RepositoryFormat.__init__(self)
730
485
        self._custom_format = None
731
486
        self._network_name = None
732
487
        self._creating_bzrdir = None
733
 
        self._revision_graph_can_have_wrong_parents = None
734
488
        self._supports_chks = None
735
489
        self._supports_external_lookups = None
736
490
        self._supports_tree_reference = None
737
 
        self._supports_funky_characters = None
738
491
        self._rich_root_data = None
739
492
 
740
493
    def __repr__(self):
769
522
        return self._supports_external_lookups
770
523
 
771
524
    @property
772
 
    def supports_funky_characters(self):
773
 
        if self._supports_funky_characters is None:
774
 
            self._ensure_real()
775
 
            self._supports_funky_characters = \
776
 
                self._custom_format.supports_funky_characters
777
 
        return self._supports_funky_characters
778
 
 
779
 
    @property
780
525
    def supports_tree_reference(self):
781
526
        if self._supports_tree_reference is None:
782
527
            self._ensure_real()
784
529
                self._custom_format.supports_tree_reference
785
530
        return self._supports_tree_reference
786
531
 
787
 
    @property
788
 
    def revision_graph_can_have_wrong_parents(self):
789
 
        if self._revision_graph_can_have_wrong_parents is None:
790
 
            self._ensure_real()
791
 
            self._revision_graph_can_have_wrong_parents = \
792
 
                self._custom_format.revision_graph_can_have_wrong_parents
793
 
        return self._revision_graph_can_have_wrong_parents
794
 
 
795
532
    def _vfs_initialize(self, a_bzrdir, shared):
796
533
        """Helper for common code in initialize."""
797
534
        if self._custom_format:
832
569
            network_name = self._network_name
833
570
        else:
834
571
            # Select the current bzrlib default and ask for that.
835
 
            reference_bzrdir_format = _mod_bzrdir.format_registry.get('default')()
 
572
            reference_bzrdir_format = bzrdir.format_registry.get('default')()
836
573
            reference_format = reference_bzrdir_format.repository_format
837
574
            network_name = reference_format.network_name()
838
575
        # 2) try direct creation via RPC
864
601
 
865
602
    def _ensure_real(self):
866
603
        if self._custom_format is None:
867
 
            self._custom_format = _mod_repository.network_format_registry.get(
 
604
            self._custom_format = repository.network_format_registry.get(
868
605
                self._network_name)
869
606
 
870
607
    @property
907
644
 
908
645
 
909
646
class RemoteRepository(_RpcHelper, lock._RelockDebugMixin,
910
 
    controldir.ControlComponent):
 
647
    bzrdir.ControlComponent):
911
648
    """Repository accessed over rpc.
912
649
 
913
650
    For the moment most operations are performed using local transport-backed
966
703
        # transport, but I'm not sure it's worth making this method
967
704
        # optional -- mbp 2010-04-21
968
705
        return self.bzrdir.get_repository_transport(None)
969
 
 
 
706
        
970
707
    def __str__(self):
971
708
        return "%s(%s)" % (self.__class__.__name__, self.base)
972
709
 
1080
817
    def find_text_key_references(self):
1081
818
        """Find the text key references within the repository.
1082
819
 
 
820
        :return: a dictionary mapping (file_id, revision_id) tuples to altered file-ids to an iterable of
 
821
        revision_ids. Each altered file-ids has the exact revision_ids that
 
822
        altered it listed explicitly.
1083
823
        :return: A dictionary mapping text keys ((fileid, revision_id) tuples)
1084
824
            to whether they were referred to by the inventory of the
1085
825
            revision_id that they contain. The inventory texts from all present
1103
843
        """Private method for using with old (< 1.2) servers to fallback."""
1104
844
        if revision_id is None:
1105
845
            revision_id = ''
1106
 
        elif _mod_revision.is_null(revision_id):
 
846
        elif revision.is_null(revision_id):
1107
847
            return {}
1108
848
 
1109
849
        path = self.bzrdir._path_for_remote_call(self._client)
1133
873
        return RemoteStreamSource(self, to_format)
1134
874
 
1135
875
    @needs_read_lock
1136
 
    def get_file_graph(self):
1137
 
        return graph.Graph(self.texts)
1138
 
 
1139
 
    @needs_read_lock
1140
876
    def has_revision(self, revision_id):
1141
877
        """True if this repository has a copy of the revision."""
1142
878
        # Copy of bzrlib.repository.Repository.has_revision
1159
895
    def _has_same_fallbacks(self, other_repo):
1160
896
        """Returns true if the repositories have the same fallbacks."""
1161
897
        # XXX: copied from Repository; it should be unified into a base class
1162
 
        # <https://bugs.launchpad.net/bzr/+bug/401622>
 
898
        # <https://bugs.edge.launchpad.net/bzr/+bug/401622>
1163
899
        my_fb = self._fallback_repositories
1164
900
        other_fb = other_repo._fallback_repositories
1165
901
        if len(my_fb) != len(other_fb):
1194
930
        """See Repository.gather_stats()."""
1195
931
        path = self.bzrdir._path_for_remote_call(self._client)
1196
932
        # revid can be None to indicate no revisions, not just NULL_REVISION
1197
 
        if revid is None or _mod_revision.is_null(revid):
 
933
        if revid is None or revision.is_null(revid):
1198
934
            fmt_revid = ''
1199
935
        else:
1200
936
            fmt_revid = revid
1261
997
        pass
1262
998
 
1263
999
    def lock_read(self):
1264
 
        """Lock the repository for read operations.
1265
 
 
1266
 
        :return: A bzrlib.lock.LogicalLockResult.
1267
 
        """
1268
1000
        # wrong eventually - want a local lock cache context
1269
1001
        if not self._lock_mode:
1270
1002
            self._note_lock('r')
1277
1009
                repo.lock_read()
1278
1010
        else:
1279
1011
            self._lock_count += 1
1280
 
        return lock.LogicalLockResult(self.unlock)
1281
1012
 
1282
1013
    def _remote_lock_write(self, token):
1283
1014
        path = self.bzrdir._path_for_remote_call(self._client)
1323
1054
            raise errors.ReadOnlyError(self)
1324
1055
        else:
1325
1056
            self._lock_count += 1
1326
 
        return RepositoryWriteLockResult(self.unlock, self._lock_token or None)
 
1057
        return self._lock_token or None
1327
1058
 
1328
1059
    def leave_lock_in_place(self):
1329
1060
        if not self._lock_token:
1483
1214
 
1484
1215
    def get_commit_builder(self, branch, parents, config, timestamp=None,
1485
1216
                           timezone=None, committer=None, revprops=None,
1486
 
                           revision_id=None, lossy=False):
 
1217
                           revision_id=None):
1487
1218
        # FIXME: It ought to be possible to call this without immediately
1488
1219
        # triggering _ensure_real.  For now it's the easiest thing to do.
1489
1220
        self._ensure_real()
1490
1221
        real_repo = self._real_repository
1491
1222
        builder = real_repo.get_commit_builder(branch, parents,
1492
1223
                config, timestamp=timestamp, timezone=timezone,
1493
 
                committer=committer, revprops=revprops,
1494
 
                revision_id=revision_id, lossy=lossy)
 
1224
                committer=committer, revprops=revprops, revision_id=revision_id)
1495
1225
        return builder
1496
1226
 
1497
1227
    def add_fallback_repository(self, repository):
1505
1235
        # We need to accumulate additional repositories here, to pass them in
1506
1236
        # on various RPC's.
1507
1237
        #
1508
 
        # Make the check before we lock: this raises an exception.
1509
 
        self._check_fallback_repository(repository)
1510
1238
        if self.is_locked():
1511
1239
            # We will call fallback.unlock() when we transition to the unlocked
1512
1240
            # state, so always add a lock here. If a caller passes us a locked
1513
1241
            # repository, they are responsible for unlocking it later.
1514
1242
            repository.lock_read()
 
1243
        self._check_fallback_repository(repository)
1515
1244
        self._fallback_repositories.append(repository)
1516
1245
        # If self._real_repository was parameterised already (e.g. because a
1517
1246
        # _real_branch had its get_stacked_on_url method called), then the
1577
1306
        return self._real_repository.make_working_trees()
1578
1307
 
1579
1308
    def refresh_data(self):
1580
 
        """Re-read any data needed to synchronise with disk.
 
1309
        """Re-read any data needed to to synchronise with disk.
1581
1310
 
1582
1311
        This method is intended to be called after another repository instance
1583
1312
        (such as one used by a smart server) has inserted data into the
1584
 
        repository. On all repositories this will work outside of write groups.
1585
 
        Some repository formats (pack and newer for bzrlib native formats)
1586
 
        support refresh_data inside write groups. If called inside a write
1587
 
        group on a repository that does not support refreshing in a write group
1588
 
        IsInWriteGroupError will be raised.
 
1313
        repository. It may not be called during a write group, but may be
 
1314
        called at any other time.
1589
1315
        """
 
1316
        if self.is_in_write_group():
 
1317
            raise errors.InternalBzrError(
 
1318
                "May not refresh_data while in a write group.")
1590
1319
        if self._real_repository is not None:
1591
1320
            self._real_repository.refresh_data()
1592
1321
 
1604
1333
        return result
1605
1334
 
1606
1335
    @needs_read_lock
1607
 
    def search_missing_revision_ids(self, other,
1608
 
            revision_id=symbol_versioning.DEPRECATED_PARAMETER,
1609
 
            find_ghosts=True, revision_ids=None, if_present_ids=None,
1610
 
            limit=None):
 
1336
    def search_missing_revision_ids(self, other, revision_id=None, find_ghosts=True):
1611
1337
        """Return the revision ids that other has that this does not.
1612
1338
 
1613
1339
        These are returned in topological order.
1614
1340
 
1615
1341
        revision_id: only return revision ids included by revision_id.
1616
1342
        """
1617
 
        if symbol_versioning.deprecated_passed(revision_id):
1618
 
            symbol_versioning.warn(
1619
 
                'search_missing_revision_ids(revision_id=...) was '
1620
 
                'deprecated in 2.4.  Use revision_ids=[...] instead.',
1621
 
                DeprecationWarning, stacklevel=2)
1622
 
            if revision_ids is not None:
1623
 
                raise AssertionError(
1624
 
                    'revision_ids is mutually exclusive with revision_id')
1625
 
            if revision_id is not None:
1626
 
                revision_ids = [revision_id]
1627
 
        inter_repo = _mod_repository.InterRepository.get(other, self)
1628
 
        return inter_repo.search_missing_revision_ids(
1629
 
            find_ghosts=find_ghosts, revision_ids=revision_ids,
1630
 
            if_present_ids=if_present_ids, limit=limit)
 
1343
        return repository.InterRepository.get(
 
1344
            other, self).search_missing_revision_ids(revision_id, find_ghosts)
1631
1345
 
1632
 
    def fetch(self, source, revision_id=None, find_ghosts=False,
 
1346
    def fetch(self, source, revision_id=None, pb=None, find_ghosts=False,
1633
1347
            fetch_spec=None):
1634
1348
        # No base implementation to use as RemoteRepository is not a subclass
1635
1349
        # of Repository; so this is a copy of Repository.fetch().
1646
1360
            # check that last_revision is in 'from' and then return a
1647
1361
            # no-operation.
1648
1362
            if (revision_id is not None and
1649
 
                not _mod_revision.is_null(revision_id)):
 
1363
                not revision.is_null(revision_id)):
1650
1364
                self.get_revision(revision_id)
1651
1365
            return 0, []
1652
1366
        # if there is no specific appropriate InterRepository, this will get
1653
1367
        # the InterRepository base class, which raises an
1654
1368
        # IncompatibleRepositories when asked to fetch.
1655
 
        inter = _mod_repository.InterRepository.get(source, self)
1656
 
        return inter.fetch(revision_id=revision_id,
 
1369
        inter = repository.InterRepository.get(source, self)
 
1370
        return inter.fetch(revision_id=revision_id, pb=pb,
1657
1371
            find_ghosts=find_ghosts, fetch_spec=fetch_spec)
1658
1372
 
1659
1373
    def create_bundle(self, target, base, fileobj, format=None):
1661
1375
        self._real_repository.create_bundle(target, base, fileobj, format)
1662
1376
 
1663
1377
    @needs_read_lock
1664
 
    @symbol_versioning.deprecated_method(
1665
 
        symbol_versioning.deprecated_in((2, 4, 0)))
1666
1378
    def get_ancestry(self, revision_id, topo_sorted=True):
1667
1379
        self._ensure_real()
1668
1380
        return self._real_repository.get_ancestry(revision_id, topo_sorted)
1885
1597
            tmpdir = osutils.mkdtemp()
1886
1598
            try:
1887
1599
                _extract_tar(tar, tmpdir)
1888
 
                tmp_bzrdir = _mod_bzrdir.BzrDir.open(tmpdir)
 
1600
                tmp_bzrdir = BzrDir.open(tmpdir)
1889
1601
                tmp_repo = tmp_bzrdir.open_repository()
1890
1602
                tmp_repo.copy_content_into(destination, revision_id)
1891
1603
            finally:
1976
1688
    def supports_rich_root(self):
1977
1689
        return self._format.rich_root_data
1978
1690
 
1979
 
    @symbol_versioning.deprecated_method(symbol_versioning.deprecated_in((2, 4, 0)))
1980
1691
    def iter_reverse_revision_history(self, revision_id):
1981
1692
        self._ensure_real()
1982
1693
        return self._real_repository.iter_reverse_revision_history(revision_id)
2003
1714
        return self._real_repository.item_keys_introduced_by(revision_ids,
2004
1715
            _files_pb=_files_pb)
2005
1716
 
 
1717
    def revision_graph_can_have_wrong_parents(self):
 
1718
        # The answer depends on the remote repo format.
 
1719
        self._ensure_real()
 
1720
        return self._real_repository.revision_graph_can_have_wrong_parents()
 
1721
 
2006
1722
    def _find_inconsistent_revision_parents(self, revisions_iterator=None):
2007
1723
        self._ensure_real()
2008
1724
        return self._real_repository._find_inconsistent_revision_parents(
2016
1732
        providers = [self._unstacked_provider]
2017
1733
        if other is not None:
2018
1734
            providers.insert(0, other)
2019
 
        return graph.StackedParentsProvider(_LazyListJoin(
2020
 
            providers, self._fallback_repositories))
 
1735
        providers.extend(r._make_parents_provider() for r in
 
1736
                         self._fallback_repositories)
 
1737
        return graph.StackedParentsProvider(providers)
2021
1738
 
2022
1739
    def _serialise_search_recipe(self, recipe):
2023
1740
        """Serialise a graph search recipe.
2031
1748
        return '\n'.join((start_keys, stop_keys, count))
2032
1749
 
2033
1750
    def _serialise_search_result(self, search_result):
2034
 
        parts = search_result.get_network_struct()
 
1751
        if isinstance(search_result, graph.PendingAncestryResult):
 
1752
            parts = ['ancestry-of']
 
1753
            parts.extend(search_result.heads)
 
1754
        else:
 
1755
            recipe = search_result.get_recipe()
 
1756
            parts = [recipe[0], self._serialise_search_recipe(recipe)]
2035
1757
        return '\n'.join(parts)
2036
1758
 
2037
1759
    def autopack(self):
2047
1769
            raise errors.UnexpectedSmartServerResponse(response)
2048
1770
 
2049
1771
 
2050
 
class RemoteStreamSink(vf_repository.StreamSink):
 
1772
class RemoteStreamSink(repository.StreamSink):
2051
1773
 
2052
1774
    def _insert_real(self, stream, src_format, resume_tokens):
2053
1775
        self.target_repo._ensure_real()
2154
1876
        self._last_substream and self._last_stream so that the stream can be
2155
1877
        resumed by _resume_stream_with_vfs.
2156
1878
        """
2157
 
 
 
1879
                    
2158
1880
        stream_iter = iter(stream)
2159
1881
        for substream_kind, substream in stream_iter:
2160
1882
            if substream_kind == 'inventory-deltas':
2163
1885
                return
2164
1886
            else:
2165
1887
                yield substream_kind, substream
2166
 
 
2167
 
 
2168
 
class RemoteStreamSource(vf_repository.StreamSource):
 
1888
            
 
1889
 
 
1890
class RemoteStreamSource(repository.StreamSource):
2169
1891
    """Stream data from a remote server."""
2170
1892
 
2171
1893
    def get_stream(self, search):
2231
1953
        candidate_verbs = [
2232
1954
            ('Repository.get_stream_1.19', (1, 19)),
2233
1955
            ('Repository.get_stream', (1, 13))]
2234
 
 
2235
1956
        found_verb = False
2236
1957
        for verb, version in candidate_verbs:
2237
1958
            if medium._is_remote_before(version):
2241
1962
                    verb, args, search_bytes)
2242
1963
            except errors.UnknownSmartMethod:
2243
1964
                medium._remember_remote_is_before(version)
2244
 
            except errors.UnknownErrorFromSmartServer, e:
2245
 
                if isinstance(search, graph.EverythingResult):
2246
 
                    error_verb = e.error_from_smart_server.error_verb
2247
 
                    if error_verb == 'BadSearch':
2248
 
                        # Pre-2.4 servers don't support this sort of search.
2249
 
                        # XXX: perhaps falling back to VFS on BadSearch is a
2250
 
                        # good idea in general?  It might provide a little bit
2251
 
                        # of protection against client-side bugs.
2252
 
                        medium._remember_remote_is_before((2, 4))
2253
 
                        break
2254
 
                raise
2255
1965
            else:
2256
1966
                response_tuple, response_handler = response
2257
1967
                found_verb = True
2261
1971
        if response_tuple[0] != 'ok':
2262
1972
            raise errors.UnexpectedSmartServerResponse(response_tuple)
2263
1973
        byte_stream = response_handler.read_streamed_body()
2264
 
        src_format, stream = smart_repo._byte_stream_to_stream(byte_stream,
2265
 
            self._record_counter)
 
1974
        src_format, stream = smart_repo._byte_stream_to_stream(byte_stream)
2266
1975
        if src_format.network_name() != repo._format.network_name():
2267
1976
            raise AssertionError(
2268
1977
                "Mismatched RemoteRepository and stream src %r, %r" % (
2372
2081
                                  name=name)
2373
2082
        return result
2374
2083
 
2375
 
    def initialize(self, a_bzrdir, name=None, repository=None):
 
2084
    def initialize(self, a_bzrdir, name=None):
2376
2085
        # 1) get the network name to use.
2377
2086
        if self._custom_format:
2378
2087
            network_name = self._custom_format.network_name()
2379
2088
        else:
2380
2089
            # Select the current bzrlib default and ask for that.
2381
 
            reference_bzrdir_format = _mod_bzrdir.format_registry.get('default')()
 
2090
            reference_bzrdir_format = bzrdir.format_registry.get('default')()
2382
2091
            reference_format = reference_bzrdir_format.get_branch_format()
2383
2092
            self._custom_format = reference_format
2384
2093
            network_name = reference_format.network_name()
2406
2115
        # Turn the response into a RemoteRepository object.
2407
2116
        format = RemoteBranchFormat(network_name=response[1])
2408
2117
        repo_format = response_tuple_to_repo_format(response[3:])
2409
 
        repo_path = response[2]
2410
 
        if repository is not None:
2411
 
            remote_repo_url = urlutils.join(a_bzrdir.user_url, repo_path)
2412
 
            url_diff = urlutils.relative_url(repository.user_url,
2413
 
                    remote_repo_url)
2414
 
            if url_diff != '.':
2415
 
                raise AssertionError(
2416
 
                    'repository.user_url %r does not match URL from server '
2417
 
                    'response (%r + %r)'
2418
 
                    % (repository.user_url, a_bzrdir.user_url, repo_path))
2419
 
            remote_repo = repository
 
2118
        if response[2] == '':
 
2119
            repo_bzrdir = a_bzrdir
2420
2120
        else:
2421
 
            if repo_path == '':
2422
 
                repo_bzrdir = a_bzrdir
2423
 
            else:
2424
 
                repo_bzrdir = RemoteBzrDir(
2425
 
                    a_bzrdir.root_transport.clone(repo_path), a_bzrdir._format,
2426
 
                    a_bzrdir._client)
2427
 
            remote_repo = RemoteRepository(repo_bzrdir, repo_format)
 
2121
            repo_bzrdir = RemoteBzrDir(
 
2122
                a_bzrdir.root_transport.clone(response[2]), a_bzrdir._format,
 
2123
                a_bzrdir._client)
 
2124
        remote_repo = RemoteRepository(repo_bzrdir, repo_format)
2428
2125
        remote_branch = RemoteBranch(a_bzrdir, remote_repo,
2429
2126
            format=format, setup_stacking=False, name=name)
2430
2127
        # XXX: We know this is a new branch, so it must have revno 0, revid
2451
2148
        self._ensure_real()
2452
2149
        return self._custom_format.supports_set_append_revisions_only()
2453
2150
 
2454
 
    def _use_default_local_heads_to_fetch(self):
2455
 
        # If the branch format is a metadir format *and* its heads_to_fetch
2456
 
        # implementation is not overridden vs the base class, we can use the
2457
 
        # base class logic rather than use the heads_to_fetch RPC.  This is
2458
 
        # usually cheaper in terms of net round trips, as the last-revision and
2459
 
        # tags info fetched is cached and would be fetched anyway.
2460
 
        self._ensure_real()
2461
 
        if isinstance(self._custom_format, branch.BranchFormatMetadir):
2462
 
            branch_class = self._custom_format._branch_class()
2463
 
            heads_to_fetch_impl = branch_class.heads_to_fetch.im_func
2464
 
            if heads_to_fetch_impl is branch.Branch.heads_to_fetch.im_func:
2465
 
                return True
2466
 
        return False
2467
2151
 
2468
2152
class RemoteBranch(branch.Branch, _RpcHelper, lock._RelockDebugMixin):
2469
2153
    """Branch stored on a server accessed by HPSS RPC.
2668
2352
            self._is_stacked = False
2669
2353
        else:
2670
2354
            self._is_stacked = True
2671
 
 
 
2355
        
2672
2356
    def _vfs_get_tags_bytes(self):
2673
2357
        self._ensure_real()
2674
2358
        return self._real_branch._get_tags_bytes()
2675
2359
 
2676
 
    @needs_read_lock
2677
2360
    def _get_tags_bytes(self):
2678
 
        if self._tags_bytes is None:
2679
 
            self._tags_bytes = self._get_tags_bytes_via_hpss()
2680
 
        return self._tags_bytes
2681
 
 
2682
 
    def _get_tags_bytes_via_hpss(self):
2683
2361
        medium = self._client._medium
2684
2362
        if medium._is_remote_before((1, 13)):
2685
2363
            return self._vfs_get_tags_bytes()
2695
2373
        return self._real_branch._set_tags_bytes(bytes)
2696
2374
 
2697
2375
    def _set_tags_bytes(self, bytes):
2698
 
        if self.is_locked():
2699
 
            self._tags_bytes = bytes
2700
2376
        medium = self._client._medium
2701
2377
        if medium._is_remote_before((1, 18)):
2702
2378
            self._vfs_set_tags_bytes(bytes)
2711
2387
            self._vfs_set_tags_bytes(bytes)
2712
2388
 
2713
2389
    def lock_read(self):
2714
 
        """Lock the branch for read operations.
2715
 
 
2716
 
        :return: A bzrlib.lock.LogicalLockResult.
2717
 
        """
2718
2390
        self.repository.lock_read()
2719
2391
        if not self._lock_mode:
2720
2392
            self._note_lock('r')
2724
2396
                self._real_branch.lock_read()
2725
2397
        else:
2726
2398
            self._lock_count += 1
2727
 
        return lock.LogicalLockResult(self.unlock)
2728
2399
 
2729
2400
    def _remote_lock_write(self, token):
2730
2401
        if token is None:
2731
2402
            branch_token = repo_token = ''
2732
2403
        else:
2733
2404
            branch_token = token
2734
 
            repo_token = self.repository.lock_write().repository_token
 
2405
            repo_token = self.repository.lock_write()
2735
2406
            self.repository.unlock()
2736
2407
        err_context = {'token': token}
2737
 
        try:
2738
 
            response = self._call(
2739
 
                'Branch.lock_write', self._remote_path(), branch_token,
2740
 
                repo_token or '', **err_context)
2741
 
        except errors.LockContention, e:
2742
 
            # The LockContention from the server doesn't have any
2743
 
            # information about the lock_url. We re-raise LockContention
2744
 
            # with valid lock_url.
2745
 
            raise errors.LockContention('(remote lock)',
2746
 
                self.repository.base.split('.bzr/')[0])
 
2408
        response = self._call(
 
2409
            'Branch.lock_write', self._remote_path(), branch_token,
 
2410
            repo_token or '', **err_context)
2747
2411
        if response[0] != 'ok':
2748
2412
            raise errors.UnexpectedSmartServerResponse(response)
2749
2413
        ok, branch_token, repo_token = response
2770
2434
            self._lock_mode = 'w'
2771
2435
            self._lock_count = 1
2772
2436
        elif self._lock_mode == 'r':
2773
 
            raise errors.ReadOnlyError(self)
 
2437
            raise errors.ReadOnlyTransaction
2774
2438
        else:
2775
2439
            if token is not None:
2776
2440
                # A token was given to lock_write, and we're relocking, so
2781
2445
            self._lock_count += 1
2782
2446
            # Re-lock the repository too.
2783
2447
            self.repository.lock_write(self._repo_lock_token)
2784
 
        return BranchWriteLockResult(self.unlock, self._lock_token or None)
 
2448
        return self._lock_token or None
2785
2449
 
2786
2450
    def _unlock(self, branch_token, repo_token):
2787
2451
        err_context = {'token': str((branch_token, repo_token))}
2856
2520
            missing_parent = parent_map[missing_parent]
2857
2521
        raise errors.RevisionNotPresent(missing_parent, self.repository)
2858
2522
 
2859
 
    def _read_last_revision_info(self):
 
2523
    def _last_revision_info(self):
2860
2524
        response = self._call('Branch.last_revision_info', self._remote_path())
2861
2525
        if response[0] != 'ok':
2862
2526
            raise SmartProtocolError('unexpected response code %s' % (response,))
2925
2589
            raise errors.UnexpectedSmartServerResponse(response)
2926
2590
        self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2927
2591
 
2928
 
    @symbol_versioning.deprecated_method(symbol_versioning.deprecated_in((2, 4, 0)))
2929
2592
    @needs_write_lock
2930
2593
    def set_revision_history(self, rev_history):
2931
 
        """See Branch.set_revision_history."""
2932
 
        self._set_revision_history(rev_history)
2933
 
 
2934
 
    @needs_write_lock
2935
 
    def _set_revision_history(self, rev_history):
2936
2594
        # Send just the tip revision of the history; the server will generate
2937
2595
        # the full history from that.  If the revision doesn't exist in this
2938
2596
        # branch, NoSuchRevision will be raised.
2996
2654
            _override_hook_target=self, **kwargs)
2997
2655
 
2998
2656
    @needs_read_lock
2999
 
    def push(self, target, overwrite=False, stop_revision=None, lossy=False):
 
2657
    def push(self, target, overwrite=False, stop_revision=None):
3000
2658
        self._ensure_real()
3001
2659
        return self._real_branch.push(
3002
 
            target, overwrite=overwrite, stop_revision=stop_revision, lossy=lossy,
 
2660
            target, overwrite=overwrite, stop_revision=stop_revision,
3003
2661
            _override_hook_source_branch=self)
3004
2662
 
3005
2663
    def is_locked(self):
3015
2673
        # XXX: These should be returned by the set_last_revision_info verb
3016
2674
        old_revno, old_revid = self.last_revision_info()
3017
2675
        self._run_pre_change_branch_tip_hooks(revno, revision_id)
3018
 
        if not revision_id or not isinstance(revision_id, basestring):
3019
 
            raise errors.InvalidRevisionId(revision_id=revision_id, branch=self)
 
2676
        revision_id = ensure_null(revision_id)
3020
2677
        try:
3021
2678
            response = self._call('Branch.set_last_revision_info',
3022
2679
                self._remote_path(), self._lock_token, self._repo_lock_token,
3051
2708
            except errors.UnknownSmartMethod:
3052
2709
                medium._remember_remote_is_before((1, 6))
3053
2710
        self._clear_cached_state_of_remote_branch_only()
3054
 
        self._set_revision_history(self._lefthand_history(revision_id,
 
2711
        self.set_revision_history(self._lefthand_history(revision_id,
3055
2712
            last_rev=last_rev,other_branch=other_branch))
3056
2713
 
3057
2714
    def set_push_location(self, location):
3058
2715
        self._ensure_real()
3059
2716
        return self._real_branch.set_push_location(location)
3060
2717
 
3061
 
    def heads_to_fetch(self):
3062
 
        if self._format._use_default_local_heads_to_fetch():
3063
 
            # We recognise this format, and its heads-to-fetch implementation
3064
 
            # is the default one (tip + tags).  In this case it's cheaper to
3065
 
            # just use the default implementation rather than a special RPC as
3066
 
            # the tip and tags data is cached.
3067
 
            return branch.Branch.heads_to_fetch(self)
3068
 
        medium = self._client._medium
3069
 
        if medium._is_remote_before((2, 4)):
3070
 
            return self._vfs_heads_to_fetch()
3071
 
        try:
3072
 
            return self._rpc_heads_to_fetch()
3073
 
        except errors.UnknownSmartMethod:
3074
 
            medium._remember_remote_is_before((2, 4))
3075
 
            return self._vfs_heads_to_fetch()
3076
 
 
3077
 
    def _rpc_heads_to_fetch(self):
3078
 
        response = self._call('Branch.heads_to_fetch', self._remote_path())
3079
 
        if len(response) != 2:
3080
 
            raise errors.UnexpectedSmartServerResponse(response)
3081
 
        must_fetch, if_present_fetch = response
3082
 
        return set(must_fetch), set(if_present_fetch)
3083
 
 
3084
 
    def _vfs_heads_to_fetch(self):
3085
 
        self._ensure_real()
3086
 
        return self._real_branch.heads_to_fetch()
3087
 
 
3088
2718
 
3089
2719
class RemoteConfig(object):
3090
2720
    """A Config that reads and writes from smart verbs.
3104
2734
        """
3105
2735
        try:
3106
2736
            configobj = self._get_configobj()
3107
 
            section_obj = None
3108
2737
            if section is None:
3109
2738
                section_obj = configobj
3110
2739
            else:
3111
2740
                try:
3112
2741
                    section_obj = configobj[section]
3113
2742
                except KeyError:
3114
 
                    pass
3115
 
            if section_obj is None:
3116
 
                value = default
3117
 
            else:
3118
 
                value = section_obj.get(name, default)
 
2743
                    return default
 
2744
            return section_obj.get(name, default)
3119
2745
        except errors.UnknownSmartMethod:
3120
 
            value = self._vfs_get_option(name, section, default)
3121
 
        for hook in config.OldConfigHooks['get']:
3122
 
            hook(self, name, value)
3123
 
        return value
 
2746
            return self._vfs_get_option(name, section, default)
3124
2747
 
3125
2748
    def _response_to_configobj(self, response):
3126
2749
        if len(response[0]) and response[0][0] != 'ok':
3127
2750
            raise errors.UnexpectedSmartServerResponse(response)
3128
2751
        lines = response[1].read_body_bytes().splitlines()
3129
 
        conf = config.ConfigObj(lines, encoding='utf-8')
3130
 
        for hook in config.OldConfigHooks['load']:
3131
 
            hook(self)
3132
 
        return conf
 
2752
        return config.ConfigObj(lines, encoding='utf-8')
3133
2753
 
3134
2754
 
3135
2755
class RemoteBranchConfig(RemoteConfig):
3154
2774
        medium = self._branch._client._medium
3155
2775
        if medium._is_remote_before((1, 14)):
3156
2776
            return self._vfs_set_option(value, name, section)
3157
 
        if isinstance(value, dict):
3158
 
            if medium._is_remote_before((2, 2)):
3159
 
                return self._vfs_set_option(value, name, section)
3160
 
            return self._set_config_option_dict(value, name, section)
3161
 
        else:
3162
 
            return self._set_config_option(value, name, section)
3163
 
 
3164
 
    def _set_config_option(self, value, name, section):
3165
2777
        try:
3166
2778
            path = self._branch._remote_path()
3167
2779
            response = self._branch._client.call('Branch.set_config_option',
3168
2780
                path, self._branch._lock_token, self._branch._repo_lock_token,
3169
2781
                value.encode('utf8'), name, section or '')
3170
2782
        except errors.UnknownSmartMethod:
3171
 
            medium = self._branch._client._medium
3172
2783
            medium._remember_remote_is_before((1, 14))
3173
2784
            return self._vfs_set_option(value, name, section)
3174
2785
        if response != ():
3175
2786
            raise errors.UnexpectedSmartServerResponse(response)
3176
2787
 
3177
 
    def _serialize_option_dict(self, option_dict):
3178
 
        utf8_dict = {}
3179
 
        for key, value in option_dict.items():
3180
 
            if isinstance(key, unicode):
3181
 
                key = key.encode('utf8')
3182
 
            if isinstance(value, unicode):
3183
 
                value = value.encode('utf8')
3184
 
            utf8_dict[key] = value
3185
 
        return bencode.bencode(utf8_dict)
3186
 
 
3187
 
    def _set_config_option_dict(self, value, name, section):
3188
 
        try:
3189
 
            path = self._branch._remote_path()
3190
 
            serialised_dict = self._serialize_option_dict(value)
3191
 
            response = self._branch._client.call(
3192
 
                'Branch.set_config_option_dict',
3193
 
                path, self._branch._lock_token, self._branch._repo_lock_token,
3194
 
                serialised_dict, name, section or '')
3195
 
        except errors.UnknownSmartMethod:
3196
 
            medium = self._branch._client._medium
3197
 
            medium._remember_remote_is_before((2, 2))
3198
 
            return self._vfs_set_option(value, name, section)
3199
 
        if response != ():
3200
 
            raise errors.UnexpectedSmartServerResponse(response)
3201
 
 
3202
2788
    def _real_object(self):
3203
2789
        self._branch._ensure_real()
3204
2790
        return self._branch._real_branch
3287
2873
                    'Missing key %r in context %r', key_err.args[0], context)
3288
2874
                raise err
3289
2875
 
3290
 
    if err.error_verb == 'NoSuchRevision':
 
2876
    if err.error_verb == 'IncompatibleRepositories':
 
2877
        raise errors.IncompatibleRepositories(err.error_args[0],
 
2878
            err.error_args[1], err.error_args[2])
 
2879
    elif err.error_verb == 'NoSuchRevision':
3291
2880
        raise NoSuchRevision(find('branch'), err.error_args[0])
3292
2881
    elif err.error_verb == 'nosuchrevision':
3293
2882
        raise NoSuchRevision(find('repository'), err.error_args[0])
3300
2889
            detail=extra)
3301
2890
    elif err.error_verb == 'norepository':
3302
2891
        raise errors.NoRepositoryPresent(find('bzrdir'))
 
2892
    elif err.error_verb == 'LockContention':
 
2893
        raise errors.LockContention('(remote lock)')
3303
2894
    elif err.error_verb == 'UnlockableTransport':
3304
2895
        raise errors.UnlockableTransport(find('bzrdir').root_transport)
 
2896
    elif err.error_verb == 'LockFailed':
 
2897
        raise errors.LockFailed(err.error_args[0], err.error_args[1])
3305
2898
    elif err.error_verb == 'TokenMismatch':
3306
2899
        raise errors.TokenMismatch(find('token'), '(remote token)')
3307
2900
    elif err.error_verb == 'Diverged':
3308
2901
        raise errors.DivergedBranches(find('branch'), find('other_branch'))
 
2902
    elif err.error_verb == 'TipChangeRejected':
 
2903
        raise errors.TipChangeRejected(err.error_args[0].decode('utf8'))
 
2904
    elif err.error_verb == 'UnstackableBranchFormat':
 
2905
        raise errors.UnstackableBranchFormat(*err.error_args)
 
2906
    elif err.error_verb == 'UnstackableRepositoryFormat':
 
2907
        raise errors.UnstackableRepositoryFormat(*err.error_args)
3309
2908
    elif err.error_verb == 'NotStacked':
3310
2909
        raise errors.NotStacked(branch=find('branch'))
3311
2910
    elif err.error_verb == 'PermissionDenied':
3321
2920
    elif err.error_verb == 'NoSuchFile':
3322
2921
        path = get_path()
3323
2922
        raise errors.NoSuchFile(path)
3324
 
    _translate_error_without_context(err)
3325
 
 
3326
 
 
3327
 
def _translate_error_without_context(err):
3328
 
    """Translate any ErrorFromSmartServer values that don't require context"""
3329
 
    if err.error_verb == 'IncompatibleRepositories':
3330
 
        raise errors.IncompatibleRepositories(err.error_args[0],
3331
 
            err.error_args[1], err.error_args[2])
3332
 
    elif err.error_verb == 'LockContention':
3333
 
        raise errors.LockContention('(remote lock)')
3334
 
    elif err.error_verb == 'LockFailed':
3335
 
        raise errors.LockFailed(err.error_args[0], err.error_args[1])
3336
 
    elif err.error_verb == 'TipChangeRejected':
3337
 
        raise errors.TipChangeRejected(err.error_args[0].decode('utf8'))
3338
 
    elif err.error_verb == 'UnstackableBranchFormat':
3339
 
        raise errors.UnstackableBranchFormat(*err.error_args)
3340
 
    elif err.error_verb == 'UnstackableRepositoryFormat':
3341
 
        raise errors.UnstackableRepositoryFormat(*err.error_args)
3342
2923
    elif err.error_verb == 'FileExists':
3343
2924
        raise errors.FileExists(err.error_args[0])
3344
2925
    elif err.error_verb == 'DirectoryNotEmpty':
3363
2944
            raise UnicodeEncodeError(encoding, val, start, end, reason)
3364
2945
    elif err.error_verb == 'ReadOnlyError':
3365
2946
        raise errors.TransportNotPossible('readonly transport')
3366
 
    elif err.error_verb == 'MemoryError':
3367
 
        raise errors.BzrError("remote server out of memory\n"
3368
 
            "Retry non-remotely, or contact the server admin for details.")
3369
2947
    raise errors.UnknownErrorFromSmartServer(err)