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  • Committer: Patch Queue Manager
  • Date: 2014-02-12 18:22:22 UTC
  • mfrom: (6589.2.1 trunk)
  • Revision ID: pqm@pqm.ubuntu.com-20140212182222-beouo25gaf1cny76
(vila) The XDG Base Directory Specification uses the XDG_CACHE_HOME,
 not XDG_CACHE_DIR. (Andrew Starr-Bochicchio)

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1
 
# Copyright (C) 2006, 2007, 2008 Canonical Ltd
 
1
# Copyright (C) 2006-2012 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
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
16
 
17
 
# TODO: At some point, handle upgrades by just passing the whole request
18
 
# across to run on the server.
 
17
from __future__ import absolute_import
19
18
 
20
19
import bz2
 
20
import zlib
21
21
 
22
22
from bzrlib import (
 
23
    bencode,
23
24
    branch,
24
 
    bzrdir,
25
 
    config,
 
25
    bzrdir as _mod_bzrdir,
 
26
    config as _mod_config,
 
27
    controldir,
26
28
    debug,
27
29
    errors,
 
30
    gpg,
28
31
    graph,
 
32
    inventory_delta,
 
33
    lock,
29
34
    lockdir,
30
 
    pack,
31
 
    repository,
32
 
    revision,
 
35
    osutils,
 
36
    registry,
 
37
    repository as _mod_repository,
 
38
    revision as _mod_revision,
 
39
    static_tuple,
33
40
    symbol_versioning,
 
41
    testament as _mod_testament,
34
42
    urlutils,
35
 
)
36
 
from bzrlib.branch import BranchReferenceFormat
37
 
from bzrlib.bzrdir import BzrDir, RemoteBzrDirFormat
38
 
from bzrlib.decorators import needs_read_lock, needs_write_lock
 
43
    vf_repository,
 
44
    vf_search,
 
45
    )
 
46
from bzrlib.branch import BranchReferenceFormat, BranchWriteLockResult
 
47
from bzrlib.decorators import needs_read_lock, needs_write_lock, only_raises
39
48
from bzrlib.errors import (
40
49
    NoSuchRevision,
41
50
    SmartProtocolError,
42
51
    )
 
52
from bzrlib.i18n import gettext
 
53
from bzrlib.inventory import Inventory
43
54
from bzrlib.lockable_files import LockableFiles
44
55
from bzrlib.smart import client, vfs, repository as smart_repo
45
 
from bzrlib.revision import ensure_null, NULL_REVISION
46
 
from bzrlib.trace import mutter, note, warning
47
 
from bzrlib.util import bencode
 
56
from bzrlib.smart.client import _SmartClient
 
57
from bzrlib.revision import NULL_REVISION
 
58
from bzrlib.revisiontree import InventoryRevisionTree
 
59
from bzrlib.repository import RepositoryWriteLockResult, _LazyListJoin
 
60
from bzrlib.serializer import format_registry as serializer_format_registry
 
61
from bzrlib.trace import mutter, note, warning, log_exception_quietly
 
62
from bzrlib.versionedfile import FulltextContentFactory
 
63
 
 
64
 
 
65
_DEFAULT_SEARCH_DEPTH = 100
48
66
 
49
67
 
50
68
class _RpcHelper(object):
62
80
        except errors.ErrorFromSmartServer, err:
63
81
            self._translate_error(err, **err_context)
64
82
 
 
83
    def _call_with_body_bytes(self, method, args, body_bytes, **err_context):
 
84
        try:
 
85
            return self._client.call_with_body_bytes(method, args, body_bytes)
 
86
        except errors.ErrorFromSmartServer, err:
 
87
            self._translate_error(err, **err_context)
 
88
 
65
89
    def _call_with_body_bytes_expecting_body(self, method, args, body_bytes,
66
90
                                             **err_context):
67
91
        try:
81
105
    return format
82
106
 
83
107
 
84
 
# Note: RemoteBzrDirFormat is in bzrdir.py
85
 
 
86
 
class RemoteBzrDir(BzrDir, _RpcHelper):
 
108
# Note that RemoteBzrDirProber lives in bzrlib.bzrdir so bzrlib.remote
 
109
# does not have to be imported unless a remote format is involved.
 
110
 
 
111
class RemoteBzrDirFormat(_mod_bzrdir.BzrDirMetaFormat1):
 
112
    """Format representing bzrdirs accessed via a smart server"""
 
113
 
 
114
    supports_workingtrees = False
 
115
 
 
116
    colocated_branches = False
 
117
 
 
118
    def __init__(self):
 
119
        _mod_bzrdir.BzrDirMetaFormat1.__init__(self)
 
120
        # XXX: It's a bit ugly that the network name is here, because we'd
 
121
        # like to believe that format objects are stateless or at least
 
122
        # immutable,  However, we do at least avoid mutating the name after
 
123
        # it's returned.  See <https://bugs.launchpad.net/bzr/+bug/504102>
 
124
        self._network_name = None
 
125
 
 
126
    def __repr__(self):
 
127
        return "%s(_network_name=%r)" % (self.__class__.__name__,
 
128
            self._network_name)
 
129
 
 
130
    def get_format_description(self):
 
131
        if self._network_name:
 
132
            try:
 
133
                real_format = controldir.network_format_registry.get(
 
134
                        self._network_name)
 
135
            except KeyError:
 
136
                pass
 
137
            else:
 
138
                return 'Remote: ' + real_format.get_format_description()
 
139
        return 'bzr remote bzrdir'
 
140
 
 
141
    def get_format_string(self):
 
142
        raise NotImplementedError(self.get_format_string)
 
143
 
 
144
    def network_name(self):
 
145
        if self._network_name:
 
146
            return self._network_name
 
147
        else:
 
148
            raise AssertionError("No network name set.")
 
149
 
 
150
    def initialize_on_transport(self, transport):
 
151
        try:
 
152
            # hand off the request to the smart server
 
153
            client_medium = transport.get_smart_medium()
 
154
        except errors.NoSmartMedium:
 
155
            # TODO: lookup the local format from a server hint.
 
156
            local_dir_format = _mod_bzrdir.BzrDirMetaFormat1()
 
157
            return local_dir_format.initialize_on_transport(transport)
 
158
        client = _SmartClient(client_medium)
 
159
        path = client.remote_path_from_transport(transport)
 
160
        try:
 
161
            response = client.call('BzrDirFormat.initialize', path)
 
162
        except errors.ErrorFromSmartServer, err:
 
163
            _translate_error(err, path=path)
 
164
        if response[0] != 'ok':
 
165
            raise errors.SmartProtocolError('unexpected response code %s' % (response,))
 
166
        format = RemoteBzrDirFormat()
 
167
        self._supply_sub_formats_to(format)
 
168
        return RemoteBzrDir(transport, format)
 
169
 
 
170
    def parse_NoneTrueFalse(self, arg):
 
171
        if not arg:
 
172
            return None
 
173
        if arg == 'False':
 
174
            return False
 
175
        if arg == 'True':
 
176
            return True
 
177
        raise AssertionError("invalid arg %r" % arg)
 
178
 
 
179
    def _serialize_NoneTrueFalse(self, arg):
 
180
        if arg is False:
 
181
            return 'False'
 
182
        if arg:
 
183
            return 'True'
 
184
        return ''
 
185
 
 
186
    def _serialize_NoneString(self, arg):
 
187
        return arg or ''
 
188
 
 
189
    def initialize_on_transport_ex(self, transport, use_existing_dir=False,
 
190
        create_prefix=False, force_new_repo=False, stacked_on=None,
 
191
        stack_on_pwd=None, repo_format_name=None, make_working_trees=None,
 
192
        shared_repo=False):
 
193
        try:
 
194
            # hand off the request to the smart server
 
195
            client_medium = transport.get_smart_medium()
 
196
        except errors.NoSmartMedium:
 
197
            do_vfs = True
 
198
        else:
 
199
            # Decline to open it if the server doesn't support our required
 
200
            # version (3) so that the VFS-based transport will do it.
 
201
            if client_medium.should_probe():
 
202
                try:
 
203
                    server_version = client_medium.protocol_version()
 
204
                    if server_version != '2':
 
205
                        do_vfs = True
 
206
                    else:
 
207
                        do_vfs = False
 
208
                except errors.SmartProtocolError:
 
209
                    # Apparently there's no usable smart server there, even though
 
210
                    # the medium supports the smart protocol.
 
211
                    do_vfs = True
 
212
            else:
 
213
                do_vfs = False
 
214
        if not do_vfs:
 
215
            client = _SmartClient(client_medium)
 
216
            path = client.remote_path_from_transport(transport)
 
217
            if client_medium._is_remote_before((1, 16)):
 
218
                do_vfs = True
 
219
        if do_vfs:
 
220
            # TODO: lookup the local format from a server hint.
 
221
            local_dir_format = _mod_bzrdir.BzrDirMetaFormat1()
 
222
            self._supply_sub_formats_to(local_dir_format)
 
223
            return local_dir_format.initialize_on_transport_ex(transport,
 
224
                use_existing_dir=use_existing_dir, create_prefix=create_prefix,
 
225
                force_new_repo=force_new_repo, stacked_on=stacked_on,
 
226
                stack_on_pwd=stack_on_pwd, repo_format_name=repo_format_name,
 
227
                make_working_trees=make_working_trees, shared_repo=shared_repo,
 
228
                vfs_only=True)
 
229
        return self._initialize_on_transport_ex_rpc(client, path, transport,
 
230
            use_existing_dir, create_prefix, force_new_repo, stacked_on,
 
231
            stack_on_pwd, repo_format_name, make_working_trees, shared_repo)
 
232
 
 
233
    def _initialize_on_transport_ex_rpc(self, client, path, transport,
 
234
        use_existing_dir, create_prefix, force_new_repo, stacked_on,
 
235
        stack_on_pwd, repo_format_name, make_working_trees, shared_repo):
 
236
        args = []
 
237
        args.append(self._serialize_NoneTrueFalse(use_existing_dir))
 
238
        args.append(self._serialize_NoneTrueFalse(create_prefix))
 
239
        args.append(self._serialize_NoneTrueFalse(force_new_repo))
 
240
        args.append(self._serialize_NoneString(stacked_on))
 
241
        # stack_on_pwd is often/usually our transport
 
242
        if stack_on_pwd:
 
243
            try:
 
244
                stack_on_pwd = transport.relpath(stack_on_pwd)
 
245
                if not stack_on_pwd:
 
246
                    stack_on_pwd = '.'
 
247
            except errors.PathNotChild:
 
248
                pass
 
249
        args.append(self._serialize_NoneString(stack_on_pwd))
 
250
        args.append(self._serialize_NoneString(repo_format_name))
 
251
        args.append(self._serialize_NoneTrueFalse(make_working_trees))
 
252
        args.append(self._serialize_NoneTrueFalse(shared_repo))
 
253
        request_network_name = self._network_name or \
 
254
            _mod_bzrdir.BzrDirFormat.get_default_format().network_name()
 
255
        try:
 
256
            response = client.call('BzrDirFormat.initialize_ex_1.16',
 
257
                request_network_name, path, *args)
 
258
        except errors.UnknownSmartMethod:
 
259
            client._medium._remember_remote_is_before((1,16))
 
260
            local_dir_format = _mod_bzrdir.BzrDirMetaFormat1()
 
261
            self._supply_sub_formats_to(local_dir_format)
 
262
            return local_dir_format.initialize_on_transport_ex(transport,
 
263
                use_existing_dir=use_existing_dir, create_prefix=create_prefix,
 
264
                force_new_repo=force_new_repo, stacked_on=stacked_on,
 
265
                stack_on_pwd=stack_on_pwd, repo_format_name=repo_format_name,
 
266
                make_working_trees=make_working_trees, shared_repo=shared_repo,
 
267
                vfs_only=True)
 
268
        except errors.ErrorFromSmartServer, err:
 
269
            _translate_error(err, path=path)
 
270
        repo_path = response[0]
 
271
        bzrdir_name = response[6]
 
272
        require_stacking = response[7]
 
273
        require_stacking = self.parse_NoneTrueFalse(require_stacking)
 
274
        format = RemoteBzrDirFormat()
 
275
        format._network_name = bzrdir_name
 
276
        self._supply_sub_formats_to(format)
 
277
        bzrdir = RemoteBzrDir(transport, format, _client=client)
 
278
        if repo_path:
 
279
            repo_format = response_tuple_to_repo_format(response[1:])
 
280
            if repo_path == '.':
 
281
                repo_path = ''
 
282
            if repo_path:
 
283
                repo_bzrdir_format = RemoteBzrDirFormat()
 
284
                repo_bzrdir_format._network_name = response[5]
 
285
                repo_bzr = RemoteBzrDir(transport.clone(repo_path),
 
286
                    repo_bzrdir_format)
 
287
            else:
 
288
                repo_bzr = bzrdir
 
289
            final_stack = response[8] or None
 
290
            final_stack_pwd = response[9] or None
 
291
            if final_stack_pwd:
 
292
                final_stack_pwd = urlutils.join(
 
293
                    transport.base, final_stack_pwd)
 
294
            remote_repo = RemoteRepository(repo_bzr, repo_format)
 
295
            if len(response) > 10:
 
296
                # Updated server verb that locks remotely.
 
297
                repo_lock_token = response[10] or None
 
298
                remote_repo.lock_write(repo_lock_token, _skip_rpc=True)
 
299
                if repo_lock_token:
 
300
                    remote_repo.dont_leave_lock_in_place()
 
301
            else:
 
302
                remote_repo.lock_write()
 
303
            policy = _mod_bzrdir.UseExistingRepository(remote_repo, final_stack,
 
304
                final_stack_pwd, require_stacking)
 
305
            policy.acquire_repository()
 
306
        else:
 
307
            remote_repo = None
 
308
            policy = None
 
309
        bzrdir._format.set_branch_format(self.get_branch_format())
 
310
        if require_stacking:
 
311
            # The repo has already been created, but we need to make sure that
 
312
            # we'll make a stackable branch.
 
313
            bzrdir._format.require_stacking(_skip_repo=True)
 
314
        return remote_repo, bzrdir, require_stacking, policy
 
315
 
 
316
    def _open(self, transport):
 
317
        return RemoteBzrDir(transport, self)
 
318
 
 
319
    def __eq__(self, other):
 
320
        if not isinstance(other, RemoteBzrDirFormat):
 
321
            return False
 
322
        return self.get_format_description() == other.get_format_description()
 
323
 
 
324
    def __return_repository_format(self):
 
325
        # Always return a RemoteRepositoryFormat object, but if a specific bzr
 
326
        # repository format has been asked for, tell the RemoteRepositoryFormat
 
327
        # that it should use that for init() etc.
 
328
        result = RemoteRepositoryFormat()
 
329
        custom_format = getattr(self, '_repository_format', None)
 
330
        if custom_format:
 
331
            if isinstance(custom_format, RemoteRepositoryFormat):
 
332
                return custom_format
 
333
            else:
 
334
                # We will use the custom format to create repositories over the
 
335
                # wire; expose its details like rich_root_data for code to
 
336
                # query
 
337
                result._custom_format = custom_format
 
338
        return result
 
339
 
 
340
    def get_branch_format(self):
 
341
        result = _mod_bzrdir.BzrDirMetaFormat1.get_branch_format(self)
 
342
        if not isinstance(result, RemoteBranchFormat):
 
343
            new_result = RemoteBranchFormat()
 
344
            new_result._custom_format = result
 
345
            # cache the result
 
346
            self.set_branch_format(new_result)
 
347
            result = new_result
 
348
        return result
 
349
 
 
350
    repository_format = property(__return_repository_format,
 
351
        _mod_bzrdir.BzrDirMetaFormat1._set_repository_format) #.im_func)
 
352
 
 
353
 
 
354
class RemoteControlStore(_mod_config.IniFileStore):
 
355
    """Control store which attempts to use HPSS calls to retrieve control store.
 
356
 
 
357
    Note that this is specific to bzr-based formats.
 
358
    """
 
359
 
 
360
    def __init__(self, bzrdir):
 
361
        super(RemoteControlStore, self).__init__()
 
362
        self.bzrdir = bzrdir
 
363
        self._real_store = None
 
364
 
 
365
    def lock_write(self, token=None):
 
366
        self._ensure_real()
 
367
        return self._real_store.lock_write(token)
 
368
 
 
369
    def unlock(self):
 
370
        self._ensure_real()
 
371
        return self._real_store.unlock()
 
372
 
 
373
    @needs_write_lock
 
374
    def save(self):
 
375
        # We need to be able to override the undecorated implementation
 
376
        self.save_without_locking()
 
377
 
 
378
    def save_without_locking(self):
 
379
        super(RemoteControlStore, self).save()
 
380
 
 
381
    def _ensure_real(self):
 
382
        self.bzrdir._ensure_real()
 
383
        if self._real_store is None:
 
384
            self._real_store = _mod_config.ControlStore(self.bzrdir)
 
385
 
 
386
    def external_url(self):
 
387
        return urlutils.join(self.branch.user_url, 'control.conf')
 
388
 
 
389
    def _load_content(self):
 
390
        medium = self.bzrdir._client._medium
 
391
        path = self.bzrdir._path_for_remote_call(self.bzrdir._client)
 
392
        try:
 
393
            response, handler = self.bzrdir._call_expecting_body(
 
394
                'BzrDir.get_config_file', path)
 
395
        except errors.UnknownSmartMethod:
 
396
            self._ensure_real()
 
397
            return self._real_store._load_content()
 
398
        if len(response) and response[0] != 'ok':
 
399
            raise errors.UnexpectedSmartServerResponse(response)
 
400
        return handler.read_body_bytes()
 
401
 
 
402
    def _save_content(self, content):
 
403
        # FIXME JRV 2011-11-22: Ideally this should use a
 
404
        # HPSS call too, but at the moment it is not possible
 
405
        # to write lock control directories.
 
406
        self._ensure_real()
 
407
        return self._real_store._save_content(content)
 
408
 
 
409
 
 
410
class RemoteBzrDir(_mod_bzrdir.BzrDir, _RpcHelper):
87
411
    """Control directory on a remote server, accessed via bzr:// or similar."""
88
412
 
89
 
    def __init__(self, transport, format, _client=None):
 
413
    def __init__(self, transport, format, _client=None, _force_probe=False):
90
414
        """Construct a RemoteBzrDir.
91
415
 
92
416
        :param _client: Private parameter for testing. Disables probing and the
93
417
            use of a real bzrdir.
94
418
        """
95
 
        BzrDir.__init__(self, transport, format)
 
419
        _mod_bzrdir.BzrDir.__init__(self, transport, format)
96
420
        # this object holds a delegated bzrdir that uses file-level operations
97
421
        # to talk to the other side
98
422
        self._real_bzrdir = None
 
423
        self._has_working_tree = None
99
424
        # 1-shot cache for the call pattern 'create_branch; open_branch' - see
100
425
        # create_branch for details.
101
426
        self._next_open_branch_result = None
105
430
            self._client = client._SmartClient(medium)
106
431
        else:
107
432
            self._client = _client
108
 
            return
109
 
 
 
433
            if not _force_probe:
 
434
                return
 
435
 
 
436
        self._probe_bzrdir()
 
437
 
 
438
    def __repr__(self):
 
439
        return '%s(%r)' % (self.__class__.__name__, self._client)
 
440
 
 
441
    def _probe_bzrdir(self):
 
442
        medium = self._client._medium
110
443
        path = self._path_for_remote_call(self._client)
 
444
        if medium._is_remote_before((2, 1)):
 
445
            self._rpc_open(path)
 
446
            return
 
447
        try:
 
448
            self._rpc_open_2_1(path)
 
449
            return
 
450
        except errors.UnknownSmartMethod:
 
451
            medium._remember_remote_is_before((2, 1))
 
452
            self._rpc_open(path)
 
453
 
 
454
    def _rpc_open_2_1(self, path):
 
455
        response = self._call('BzrDir.open_2.1', path)
 
456
        if response == ('no',):
 
457
            raise errors.NotBranchError(path=self.root_transport.base)
 
458
        elif response[0] == 'yes':
 
459
            if response[1] == 'yes':
 
460
                self._has_working_tree = True
 
461
            elif response[1] == 'no':
 
462
                self._has_working_tree = False
 
463
            else:
 
464
                raise errors.UnexpectedSmartServerResponse(response)
 
465
        else:
 
466
            raise errors.UnexpectedSmartServerResponse(response)
 
467
 
 
468
    def _rpc_open(self, path):
111
469
        response = self._call('BzrDir.open', path)
112
470
        if response not in [('yes',), ('no',)]:
113
471
            raise errors.UnexpectedSmartServerResponse(response)
114
472
        if response == ('no',):
115
 
            raise errors.NotBranchError(path=transport.base)
 
473
            raise errors.NotBranchError(path=self.root_transport.base)
116
474
 
117
475
    def _ensure_real(self):
118
476
        """Ensure that there is a _real_bzrdir set.
120
478
        Used before calls to self._real_bzrdir.
121
479
        """
122
480
        if not self._real_bzrdir:
123
 
            self._real_bzrdir = BzrDir.open_from_transport(
124
 
                self.root_transport, _server_formats=False)
 
481
            if 'hpssvfs' in debug.debug_flags:
 
482
                import traceback
 
483
                warning('VFS BzrDir access triggered\n%s',
 
484
                    ''.join(traceback.format_stack()))
 
485
            self._real_bzrdir = _mod_bzrdir.BzrDir.open_from_transport(
 
486
                self.root_transport, probers=[_mod_bzrdir.BzrProber])
125
487
            self._format._network_name = \
126
488
                self._real_bzrdir._format.network_name()
127
489
 
132
494
        # Prevent aliasing problems in the next_open_branch_result cache.
133
495
        # See create_branch for rationale.
134
496
        self._next_open_branch_result = None
135
 
        return BzrDir.break_lock(self)
 
497
        return _mod_bzrdir.BzrDir.break_lock(self)
 
498
 
 
499
    def _vfs_checkout_metadir(self):
 
500
        self._ensure_real()
 
501
        return self._real_bzrdir.checkout_metadir()
 
502
 
 
503
    def checkout_metadir(self):
 
504
        """Retrieve the controldir format to use for checkouts of this one.
 
505
        """
 
506
        medium = self._client._medium
 
507
        if medium._is_remote_before((2, 5)):
 
508
            return self._vfs_checkout_metadir()
 
509
        path = self._path_for_remote_call(self._client)
 
510
        try:
 
511
            response = self._client.call('BzrDir.checkout_metadir',
 
512
                path)
 
513
        except errors.UnknownSmartMethod:
 
514
            medium._remember_remote_is_before((2, 5))
 
515
            return self._vfs_checkout_metadir()
 
516
        if len(response) != 3:
 
517
            raise errors.UnexpectedSmartServerResponse(response)
 
518
        control_name, repo_name, branch_name = response
 
519
        try:
 
520
            format = controldir.network_format_registry.get(control_name)
 
521
        except KeyError:
 
522
            raise errors.UnknownFormatError(kind='control',
 
523
                format=control_name)
 
524
        if repo_name:
 
525
            try:
 
526
                repo_format = _mod_repository.network_format_registry.get(
 
527
                    repo_name)
 
528
            except KeyError:
 
529
                raise errors.UnknownFormatError(kind='repository',
 
530
                    format=repo_name)
 
531
            format.repository_format = repo_format
 
532
        if branch_name:
 
533
            try:
 
534
                format.set_branch_format(
 
535
                    branch.network_format_registry.get(branch_name))
 
536
            except KeyError:
 
537
                raise errors.UnknownFormatError(kind='branch',
 
538
                    format=branch_name)
 
539
        return format
136
540
 
137
541
    def _vfs_cloning_metadir(self, require_stacking=False):
138
542
        self._ensure_real()
169
573
        if len(branch_info) != 2:
170
574
            raise errors.UnexpectedSmartServerResponse(response)
171
575
        branch_ref, branch_name = branch_info
172
 
        format = bzrdir.network_format_registry.get(control_name)
 
576
        try:
 
577
            format = controldir.network_format_registry.get(control_name)
 
578
        except KeyError:
 
579
            raise errors.UnknownFormatError(kind='control', format=control_name)
 
580
 
173
581
        if repo_name:
174
 
            format.repository_format = repository.network_format_registry.get(
175
 
                repo_name)
 
582
            try:
 
583
                format.repository_format = _mod_repository.network_format_registry.get(
 
584
                    repo_name)
 
585
            except KeyError:
 
586
                raise errors.UnknownFormatError(kind='repository',
 
587
                    format=repo_name)
176
588
        if branch_ref == 'ref':
177
589
            # XXX: we need possible_transports here to avoid reopening the
178
590
            # connection to the referenced location
179
 
            ref_bzrdir = BzrDir.open(branch_name)
 
591
            ref_bzrdir = _mod_bzrdir.BzrDir.open(branch_name)
180
592
            branch_format = ref_bzrdir.cloning_metadir().get_branch_format()
181
593
            format.set_branch_format(branch_format)
182
594
        elif branch_ref == 'branch':
183
595
            if branch_name:
184
 
                format.set_branch_format(
185
 
                    branch.network_format_registry.get(branch_name))
 
596
                try:
 
597
                    branch_format = branch.network_format_registry.get(
 
598
                        branch_name)
 
599
                except KeyError:
 
600
                    raise errors.UnknownFormatError(kind='branch',
 
601
                        format=branch_name)
 
602
                format.set_branch_format(branch_format)
186
603
        else:
187
604
            raise errors.UnexpectedSmartServerResponse(response)
188
605
        return format
198
615
 
199
616
    def destroy_repository(self):
200
617
        """See BzrDir.destroy_repository"""
201
 
        self._ensure_real()
202
 
        self._real_bzrdir.destroy_repository()
 
618
        path = self._path_for_remote_call(self._client)
 
619
        try:
 
620
            response = self._call('BzrDir.destroy_repository', path)
 
621
        except errors.UnknownSmartMethod:
 
622
            self._ensure_real()
 
623
            self._real_bzrdir.destroy_repository()
 
624
            return
 
625
        if response[0] != 'ok':
 
626
            raise SmartProtocolError('unexpected response code %s' % (response,))
203
627
 
204
 
    def create_branch(self):
 
628
    def create_branch(self, name=None, repository=None,
 
629
                      append_revisions_only=None):
 
630
        if name is None:
 
631
            name = self._get_selected_branch()
 
632
        if name != "":
 
633
            raise errors.NoColocatedBranchSupport(self)
205
634
        # as per meta1 formats - just delegate to the format object which may
206
635
        # be parameterised.
207
 
        real_branch = self._format.get_branch_format().initialize(self)
 
636
        real_branch = self._format.get_branch_format().initialize(self,
 
637
            name=name, repository=repository,
 
638
            append_revisions_only=append_revisions_only)
208
639
        if not isinstance(real_branch, RemoteBranch):
209
 
            result = RemoteBranch(self, self.find_repository(), real_branch)
 
640
            if not isinstance(repository, RemoteRepository):
 
641
                raise AssertionError(
 
642
                    'need a RemoteRepository to use with RemoteBranch, got %r'
 
643
                    % (repository,))
 
644
            result = RemoteBranch(self, repository, real_branch, name=name)
210
645
        else:
211
646
            result = real_branch
212
647
        # BzrDir.clone_on_transport() uses the result of create_branch but does
218
653
        self._next_open_branch_result = result
219
654
        return result
220
655
 
221
 
    def destroy_branch(self):
 
656
    def destroy_branch(self, name=None):
222
657
        """See BzrDir.destroy_branch"""
223
 
        self._ensure_real()
224
 
        self._real_bzrdir.destroy_branch()
 
658
        if name is None:
 
659
            name = self._get_selected_branch()
 
660
        if name != "":
 
661
            raise errors.NoColocatedBranchSupport(self)
 
662
        path = self._path_for_remote_call(self._client)
 
663
        try:
 
664
            if name != "":
 
665
                args = (name, )
 
666
            else:
 
667
                args = ()
 
668
            response = self._call('BzrDir.destroy_branch', path, *args)
 
669
        except errors.UnknownSmartMethod:
 
670
            self._ensure_real()
 
671
            self._real_bzrdir.destroy_branch(name=name)
 
672
            self._next_open_branch_result = None
 
673
            return
225
674
        self._next_open_branch_result = None
 
675
        if response[0] != 'ok':
 
676
            raise SmartProtocolError('unexpected response code %s' % (response,))
226
677
 
227
 
    def create_workingtree(self, revision_id=None, from_branch=None):
 
678
    def create_workingtree(self, revision_id=None, from_branch=None,
 
679
        accelerator_tree=None, hardlink=False):
228
680
        raise errors.NotLocalUrl(self.transport.base)
229
681
 
230
 
    def find_branch_format(self):
 
682
    def find_branch_format(self, name=None):
231
683
        """Find the branch 'format' for this bzrdir.
232
684
 
233
685
        This might be a synthetic object for e.g. RemoteBranch and SVN.
234
686
        """
235
 
        b = self.open_branch()
 
687
        b = self.open_branch(name=name)
236
688
        return b._format
237
689
 
238
 
    def get_branch_reference(self):
 
690
    def get_branches(self, possible_transports=None, ignore_fallbacks=False):
 
691
        path = self._path_for_remote_call(self._client)
 
692
        try:
 
693
            response, handler = self._call_expecting_body(
 
694
                'BzrDir.get_branches', path)
 
695
        except errors.UnknownSmartMethod:
 
696
            self._ensure_real()
 
697
            return self._real_bzrdir.get_branches()
 
698
        if response[0] != "success":
 
699
            raise errors.UnexpectedSmartServerResponse(response)
 
700
        body = bencode.bdecode(handler.read_body_bytes())
 
701
        ret = {}
 
702
        for (name, value) in body.iteritems():
 
703
            ret[name] = self._open_branch(name, value[0], value[1],
 
704
                possible_transports=possible_transports,
 
705
                ignore_fallbacks=ignore_fallbacks)
 
706
        return ret
 
707
 
 
708
    def set_branch_reference(self, target_branch, name=None):
 
709
        """See BzrDir.set_branch_reference()."""
 
710
        if name is None:
 
711
            name = self._get_selected_branch()
 
712
        if name != "":
 
713
            raise errors.NoColocatedBranchSupport(self)
 
714
        self._ensure_real()
 
715
        return self._real_bzrdir.set_branch_reference(target_branch, name=name)
 
716
 
 
717
    def get_branch_reference(self, name=None):
239
718
        """See BzrDir.get_branch_reference()."""
 
719
        if name is None:
 
720
            name = self._get_selected_branch()
 
721
        if name != "":
 
722
            raise errors.NoColocatedBranchSupport(self)
240
723
        response = self._get_branch_reference()
241
724
        if response[0] == 'ref':
242
725
            return response[1]
246
729
    def _get_branch_reference(self):
247
730
        path = self._path_for_remote_call(self._client)
248
731
        medium = self._client._medium
249
 
        if not medium._is_remote_before((1, 13)):
 
732
        candidate_calls = [
 
733
            ('BzrDir.open_branchV3', (2, 1)),
 
734
            ('BzrDir.open_branchV2', (1, 13)),
 
735
            ('BzrDir.open_branch', None),
 
736
            ]
 
737
        for verb, required_version in candidate_calls:
 
738
            if required_version and medium._is_remote_before(required_version):
 
739
                continue
250
740
            try:
251
 
                response = self._call('BzrDir.open_branchV2', path)
252
 
                if response[0] not in ('ref', 'branch'):
253
 
                    raise errors.UnexpectedSmartServerResponse(response)
254
 
                return response
 
741
                response = self._call(verb, path)
255
742
            except errors.UnknownSmartMethod:
256
 
                medium._remember_remote_is_before((1, 13))
257
 
        response = self._call('BzrDir.open_branch', path)
258
 
        if response[0] != 'ok':
 
743
                if required_version is None:
 
744
                    raise
 
745
                medium._remember_remote_is_before(required_version)
 
746
            else:
 
747
                break
 
748
        if verb == 'BzrDir.open_branch':
 
749
            if response[0] != 'ok':
 
750
                raise errors.UnexpectedSmartServerResponse(response)
 
751
            if response[1] != '':
 
752
                return ('ref', response[1])
 
753
            else:
 
754
                return ('branch', '')
 
755
        if response[0] not in ('ref', 'branch'):
259
756
            raise errors.UnexpectedSmartServerResponse(response)
260
 
        if response[1] != '':
261
 
            return ('ref', response[1])
262
 
        else:
263
 
            return ('branch', '')
 
757
        return response
264
758
 
265
 
    def _get_tree_branch(self):
 
759
    def _get_tree_branch(self, name=None):
266
760
        """See BzrDir._get_tree_branch()."""
267
 
        return None, self.open_branch()
 
761
        return None, self.open_branch(name=name)
268
762
 
269
 
    def open_branch(self, _unsupported=False, ignore_fallbacks=False):
270
 
        if _unsupported:
271
 
            raise NotImplementedError('unsupported flag support not implemented yet.')
272
 
        if self._next_open_branch_result is not None:
273
 
            # See create_branch for details.
274
 
            result = self._next_open_branch_result
275
 
            self._next_open_branch_result = None
276
 
            return result
277
 
        response = self._get_branch_reference()
278
 
        if response[0] == 'ref':
 
763
    def _open_branch(self, name, kind, location_or_format,
 
764
                     ignore_fallbacks=False, possible_transports=None):
 
765
        if kind == 'ref':
279
766
            # a branch reference, use the existing BranchReference logic.
280
767
            format = BranchReferenceFormat()
281
 
            return format.open(self, _found=True, location=response[1],
282
 
                ignore_fallbacks=ignore_fallbacks)
283
 
        branch_format_name = response[1]
 
768
            return format.open(self, name=name, _found=True,
 
769
                location=location_or_format, ignore_fallbacks=ignore_fallbacks,
 
770
                possible_transports=possible_transports)
 
771
        branch_format_name = location_or_format
284
772
        if not branch_format_name:
285
773
            branch_format_name = None
286
774
        format = RemoteBranchFormat(network_name=branch_format_name)
287
775
        return RemoteBranch(self, self.find_repository(), format=format,
288
 
            setup_stacking=not ignore_fallbacks)
 
776
            setup_stacking=not ignore_fallbacks, name=name,
 
777
            possible_transports=possible_transports)
 
778
 
 
779
    def open_branch(self, name=None, unsupported=False,
 
780
                    ignore_fallbacks=False, possible_transports=None):
 
781
        if name is None:
 
782
            name = self._get_selected_branch()
 
783
        if name != "":
 
784
            raise errors.NoColocatedBranchSupport(self)
 
785
        if unsupported:
 
786
            raise NotImplementedError('unsupported flag support not implemented yet.')
 
787
        if self._next_open_branch_result is not None:
 
788
            # See create_branch for details.
 
789
            result = self._next_open_branch_result
 
790
            self._next_open_branch_result = None
 
791
            return result
 
792
        response = self._get_branch_reference()
 
793
        return self._open_branch(name, response[0], response[1],
 
794
            possible_transports=possible_transports,
 
795
            ignore_fallbacks=ignore_fallbacks)
289
796
 
290
797
    def _open_repo_v1(self, path):
291
798
        verb = 'BzrDir.find_repository'
352
859
        else:
353
860
            raise errors.NoRepositoryPresent(self)
354
861
 
 
862
    def has_workingtree(self):
 
863
        if self._has_working_tree is None:
 
864
            path = self._path_for_remote_call(self._client)
 
865
            try:
 
866
                response = self._call('BzrDir.has_workingtree', path)
 
867
            except errors.UnknownSmartMethod:
 
868
                self._ensure_real()
 
869
                self._has_working_tree = self._real_bzrdir.has_workingtree()
 
870
            else:
 
871
                if response[0] not in ('yes', 'no'):
 
872
                    raise SmartProtocolError('unexpected response code %s' % (response,))
 
873
                self._has_working_tree = (response[0] == 'yes')
 
874
        return self._has_working_tree
 
875
 
355
876
    def open_workingtree(self, recommend_upgrade=True):
356
 
        self._ensure_real()
357
 
        if self._real_bzrdir.has_workingtree():
 
877
        if self.has_workingtree():
358
878
            raise errors.NotLocalUrl(self.root_transport)
359
879
        else:
360
880
            raise errors.NoWorkingTree(self.root_transport.base)
361
881
 
362
882
    def _path_for_remote_call(self, client):
363
883
        """Return the path to be used for this bzrdir in a remote call."""
364
 
        return client.remote_path_from_transport(self.root_transport)
 
884
        return urlutils.split_segment_parameters_raw(
 
885
            client.remote_path_from_transport(self.root_transport))[0]
365
886
 
366
 
    def get_branch_transport(self, branch_format):
 
887
    def get_branch_transport(self, branch_format, name=None):
367
888
        self._ensure_real()
368
 
        return self._real_bzrdir.get_branch_transport(branch_format)
 
889
        return self._real_bzrdir.get_branch_transport(branch_format, name=name)
369
890
 
370
891
    def get_repository_transport(self, repository_format):
371
892
        self._ensure_real()
379
900
        """Upgrading of remote bzrdirs is not supported yet."""
380
901
        return False
381
902
 
382
 
    def needs_format_conversion(self, format=None):
 
903
    def needs_format_conversion(self, format):
383
904
        """Upgrading of remote bzrdirs is not supported yet."""
384
 
        if format is None:
385
 
            symbol_versioning.warn(symbol_versioning.deprecated_in((1, 13, 0))
386
 
                % 'needs_format_conversion(format=None)')
387
905
        return False
388
906
 
389
 
    def clone(self, url, revision_id=None, force_new_repo=False,
390
 
              preserve_stacking=False):
391
 
        self._ensure_real()
392
 
        return self._real_bzrdir.clone(url, revision_id=revision_id,
393
 
            force_new_repo=force_new_repo, preserve_stacking=preserve_stacking)
394
 
 
395
907
    def _get_config(self):
396
908
        return RemoteBzrDirConfig(self)
397
909
 
398
 
 
399
 
class RemoteRepositoryFormat(repository.RepositoryFormat):
 
910
    def _get_config_store(self):
 
911
        return RemoteControlStore(self)
 
912
 
 
913
 
 
914
class RemoteRepositoryFormat(vf_repository.VersionedFileRepositoryFormat):
400
915
    """Format for repositories accessed over a _SmartClient.
401
916
 
402
917
    Instances of this repository are represented by RemoteRepository
417
932
    """
418
933
 
419
934
    _matchingbzrdir = RemoteBzrDirFormat()
 
935
    supports_full_versioned_files = True
 
936
    supports_leaving_lock = True
420
937
 
421
938
    def __init__(self):
422
 
        repository.RepositoryFormat.__init__(self)
 
939
        _mod_repository.RepositoryFormat.__init__(self)
423
940
        self._custom_format = None
424
941
        self._network_name = None
425
942
        self._creating_bzrdir = None
 
943
        self._revision_graph_can_have_wrong_parents = None
 
944
        self._supports_chks = None
426
945
        self._supports_external_lookups = None
427
946
        self._supports_tree_reference = None
 
947
        self._supports_funky_characters = None
 
948
        self._supports_nesting_repositories = None
428
949
        self._rich_root_data = None
429
950
 
 
951
    def __repr__(self):
 
952
        return "%s(_network_name=%r)" % (self.__class__.__name__,
 
953
            self._network_name)
 
954
 
430
955
    @property
431
956
    def fast_deltas(self):
432
957
        self._ensure_real()
440
965
        return self._rich_root_data
441
966
 
442
967
    @property
 
968
    def supports_chks(self):
 
969
        if self._supports_chks is None:
 
970
            self._ensure_real()
 
971
            self._supports_chks = self._custom_format.supports_chks
 
972
        return self._supports_chks
 
973
 
 
974
    @property
443
975
    def supports_external_lookups(self):
444
976
        if self._supports_external_lookups is None:
445
977
            self._ensure_real()
448
980
        return self._supports_external_lookups
449
981
 
450
982
    @property
 
983
    def supports_funky_characters(self):
 
984
        if self._supports_funky_characters is None:
 
985
            self._ensure_real()
 
986
            self._supports_funky_characters = \
 
987
                self._custom_format.supports_funky_characters
 
988
        return self._supports_funky_characters
 
989
 
 
990
    @property
 
991
    def supports_nesting_repositories(self):
 
992
        if self._supports_nesting_repositories is None:
 
993
            self._ensure_real()
 
994
            self._supports_nesting_repositories = \
 
995
                self._custom_format.supports_nesting_repositories
 
996
        return self._supports_nesting_repositories
 
997
 
 
998
    @property
451
999
    def supports_tree_reference(self):
452
1000
        if self._supports_tree_reference is None:
453
1001
            self._ensure_real()
455
1003
                self._custom_format.supports_tree_reference
456
1004
        return self._supports_tree_reference
457
1005
 
 
1006
    @property
 
1007
    def revision_graph_can_have_wrong_parents(self):
 
1008
        if self._revision_graph_can_have_wrong_parents is None:
 
1009
            self._ensure_real()
 
1010
            self._revision_graph_can_have_wrong_parents = \
 
1011
                self._custom_format.revision_graph_can_have_wrong_parents
 
1012
        return self._revision_graph_can_have_wrong_parents
 
1013
 
458
1014
    def _vfs_initialize(self, a_bzrdir, shared):
459
1015
        """Helper for common code in initialize."""
460
1016
        if self._custom_format:
491
1047
        # 1) get the network name to use.
492
1048
        if self._custom_format:
493
1049
            network_name = self._custom_format.network_name()
 
1050
        elif self._network_name:
 
1051
            network_name = self._network_name
494
1052
        else:
495
1053
            # Select the current bzrlib default and ask for that.
496
 
            reference_bzrdir_format = bzrdir.format_registry.get('default')()
 
1054
            reference_bzrdir_format = controldir.format_registry.get('default')()
497
1055
            reference_format = reference_bzrdir_format.repository_format
498
1056
            network_name = reference_format.network_name()
499
1057
        # 2) try direct creation via RPC
525
1083
 
526
1084
    def _ensure_real(self):
527
1085
        if self._custom_format is None:
528
 
            self._custom_format = repository.network_format_registry.get(
529
 
                self._network_name)
 
1086
            try:
 
1087
                self._custom_format = _mod_repository.network_format_registry.get(
 
1088
                    self._network_name)
 
1089
            except KeyError:
 
1090
                raise errors.UnknownFormatError(kind='repository',
 
1091
                    format=self._network_name)
530
1092
 
531
1093
    @property
532
1094
    def _fetch_order(self):
544
1106
        return self._custom_format._fetch_reconcile
545
1107
 
546
1108
    def get_format_description(self):
547
 
        return 'bzr remote repository'
 
1109
        self._ensure_real()
 
1110
        return 'Remote: ' + self._custom_format.get_format_description()
548
1111
 
549
1112
    def __eq__(self, other):
550
1113
        return self.__class__ is other.__class__
551
1114
 
552
 
    def check_conversion_target(self, target_format):
553
 
        if self.rich_root_data and not target_format.rich_root_data:
554
 
            raise errors.BadConversionTarget(
555
 
                'Does not support rich root data.', target_format)
556
 
        if (self.supports_tree_reference and
557
 
            not getattr(target_format, 'supports_tree_reference', False)):
558
 
            raise errors.BadConversionTarget(
559
 
                'Does not support nested trees', target_format)
560
 
 
561
1115
    def network_name(self):
562
1116
        if self._network_name:
563
1117
            return self._network_name
565
1119
        return self._creating_repo._real_repository._format.network_name()
566
1120
 
567
1121
    @property
 
1122
    def pack_compresses(self):
 
1123
        self._ensure_real()
 
1124
        return self._custom_format.pack_compresses
 
1125
 
 
1126
    @property
568
1127
    def _serializer(self):
569
1128
        self._ensure_real()
570
1129
        return self._custom_format._serializer
571
1130
 
572
1131
 
573
 
class RemoteRepository(_RpcHelper):
 
1132
class RemoteRepository(_mod_repository.Repository, _RpcHelper,
 
1133
        lock._RelockDebugMixin):
574
1134
    """Repository accessed over rpc.
575
1135
 
576
1136
    For the moment most operations are performed using local transport-backed
600
1160
        self._format = format
601
1161
        self._lock_mode = None
602
1162
        self._lock_token = None
 
1163
        self._write_group_tokens = None
603
1164
        self._lock_count = 0
604
1165
        self._leave_lock = False
 
1166
        # Cache of revision parents; misses are cached during read locks, and
 
1167
        # write locks when no _real_repository has been set.
605
1168
        self._unstacked_provider = graph.CachingParentsProvider(
606
1169
            get_parent_map=self._get_parent_map_rpc)
607
1170
        self._unstacked_provider.disable_cache()
617
1180
        # Additional places to query for data.
618
1181
        self._fallback_repositories = []
619
1182
 
 
1183
    @property
 
1184
    def user_transport(self):
 
1185
        return self.bzrdir.user_transport
 
1186
 
 
1187
    @property
 
1188
    def control_transport(self):
 
1189
        # XXX: Normally you shouldn't directly get at the remote repository
 
1190
        # transport, but I'm not sure it's worth making this method
 
1191
        # optional -- mbp 2010-04-21
 
1192
        return self.bzrdir.get_repository_transport(None)
 
1193
 
620
1194
    def __str__(self):
621
1195
        return "%s(%s)" % (self.__class__.__name__, self.base)
622
1196
 
632
1206
 
633
1207
        :param suppress_errors: see Repository.abort_write_group.
634
1208
        """
635
 
        self._ensure_real()
636
 
        return self._real_repository.abort_write_group(
637
 
            suppress_errors=suppress_errors)
 
1209
        if self._real_repository:
 
1210
            self._ensure_real()
 
1211
            return self._real_repository.abort_write_group(
 
1212
                suppress_errors=suppress_errors)
 
1213
        if not self.is_in_write_group():
 
1214
            if suppress_errors:
 
1215
                mutter('(suppressed) not in write group')
 
1216
                return
 
1217
            raise errors.BzrError("not in write group")
 
1218
        path = self.bzrdir._path_for_remote_call(self._client)
 
1219
        try:
 
1220
            response = self._call('Repository.abort_write_group', path,
 
1221
                self._lock_token, self._write_group_tokens)
 
1222
        except Exception, exc:
 
1223
            self._write_group = None
 
1224
            if not suppress_errors:
 
1225
                raise
 
1226
            mutter('abort_write_group failed')
 
1227
            log_exception_quietly()
 
1228
            note(gettext('bzr: ERROR (ignored): %s'), exc)
 
1229
        else:
 
1230
            if response != ('ok', ):
 
1231
                raise errors.UnexpectedSmartServerResponse(response)
 
1232
            self._write_group_tokens = None
638
1233
 
639
1234
    @property
640
1235
    def chk_bytes(self):
654
1249
        for older plugins that don't use e.g. the CommitBuilder
655
1250
        facility.
656
1251
        """
657
 
        self._ensure_real()
658
 
        return self._real_repository.commit_write_group()
 
1252
        if self._real_repository:
 
1253
            self._ensure_real()
 
1254
            return self._real_repository.commit_write_group()
 
1255
        if not self.is_in_write_group():
 
1256
            raise errors.BzrError("not in write group")
 
1257
        path = self.bzrdir._path_for_remote_call(self._client)
 
1258
        response = self._call('Repository.commit_write_group', path,
 
1259
            self._lock_token, self._write_group_tokens)
 
1260
        if response != ('ok', ):
 
1261
            raise errors.UnexpectedSmartServerResponse(response)
 
1262
        self._write_group_tokens = None
 
1263
        # Refresh data after writing to the repository.
 
1264
        self.refresh_data()
659
1265
 
660
1266
    def resume_write_group(self, tokens):
661
 
        self._ensure_real()
662
 
        return self._real_repository.resume_write_group(tokens)
 
1267
        if self._real_repository:
 
1268
            return self._real_repository.resume_write_group(tokens)
 
1269
        path = self.bzrdir._path_for_remote_call(self._client)
 
1270
        try:
 
1271
            response = self._call('Repository.check_write_group', path,
 
1272
               self._lock_token, tokens)
 
1273
        except errors.UnknownSmartMethod:
 
1274
            self._ensure_real()
 
1275
            return self._real_repository.resume_write_group(tokens)
 
1276
        if response != ('ok', ):
 
1277
            raise errors.UnexpectedSmartServerResponse(response)
 
1278
        self._write_group_tokens = tokens
663
1279
 
664
1280
    def suspend_write_group(self):
665
 
        self._ensure_real()
666
 
        return self._real_repository.suspend_write_group()
 
1281
        if self._real_repository:
 
1282
            return self._real_repository.suspend_write_group()
 
1283
        ret = self._write_group_tokens or []
 
1284
        self._write_group_tokens = None
 
1285
        return ret
 
1286
 
 
1287
    def get_missing_parent_inventories(self, check_for_missing_texts=True):
 
1288
        self._ensure_real()
 
1289
        return self._real_repository.get_missing_parent_inventories(
 
1290
            check_for_missing_texts=check_for_missing_texts)
 
1291
 
 
1292
    def _get_rev_id_for_revno_vfs(self, revno, known_pair):
 
1293
        self._ensure_real()
 
1294
        return self._real_repository.get_rev_id_for_revno(
 
1295
            revno, known_pair)
 
1296
 
 
1297
    def get_rev_id_for_revno(self, revno, known_pair):
 
1298
        """See Repository.get_rev_id_for_revno."""
 
1299
        path = self.bzrdir._path_for_remote_call(self._client)
 
1300
        try:
 
1301
            if self._client._medium._is_remote_before((1, 17)):
 
1302
                return self._get_rev_id_for_revno_vfs(revno, known_pair)
 
1303
            response = self._call(
 
1304
                'Repository.get_rev_id_for_revno', path, revno, known_pair)
 
1305
        except errors.UnknownSmartMethod:
 
1306
            self._client._medium._remember_remote_is_before((1, 17))
 
1307
            return self._get_rev_id_for_revno_vfs(revno, known_pair)
 
1308
        if response[0] == 'ok':
 
1309
            return True, response[1]
 
1310
        elif response[0] == 'history-incomplete':
 
1311
            known_pair = response[1:3]
 
1312
            for fallback in self._fallback_repositories:
 
1313
                found, result = fallback.get_rev_id_for_revno(revno, known_pair)
 
1314
                if found:
 
1315
                    return True, result
 
1316
                else:
 
1317
                    known_pair = result
 
1318
            # Not found in any fallbacks
 
1319
            return False, known_pair
 
1320
        else:
 
1321
            raise errors.UnexpectedSmartServerResponse(response)
667
1322
 
668
1323
    def _ensure_real(self):
669
1324
        """Ensure that there is a _real_repository set.
679
1334
        invocation. If in doubt chat to the bzr network team.
680
1335
        """
681
1336
        if self._real_repository is None:
 
1337
            if 'hpssvfs' in debug.debug_flags:
 
1338
                import traceback
 
1339
                warning('VFS Repository access triggered\n%s',
 
1340
                    ''.join(traceback.format_stack()))
 
1341
            self._unstacked_provider.missing_keys.clear()
682
1342
            self.bzrdir._ensure_real()
683
1343
            self._set_real_repository(
684
1344
                self.bzrdir._real_bzrdir.open_repository())
689
1349
    def find_text_key_references(self):
690
1350
        """Find the text key references within the repository.
691
1351
 
692
 
        :return: a dictionary mapping (file_id, revision_id) tuples to altered file-ids to an iterable of
693
 
        revision_ids. Each altered file-ids has the exact revision_ids that
694
 
        altered it listed explicitly.
695
1352
        :return: A dictionary mapping text keys ((fileid, revision_id) tuples)
696
1353
            to whether they were referred to by the inventory of the
697
1354
            revision_id that they contain. The inventory texts from all present
715
1372
        """Private method for using with old (< 1.2) servers to fallback."""
716
1373
        if revision_id is None:
717
1374
            revision_id = ''
718
 
        elif revision.is_null(revision_id):
 
1375
        elif _mod_revision.is_null(revision_id):
719
1376
            return {}
720
1377
 
721
1378
        path = self.bzrdir._path_for_remote_call(self._client)
744
1401
        """Return a source for streaming from this repository."""
745
1402
        return RemoteStreamSource(self, to_format)
746
1403
 
 
1404
    @needs_read_lock
 
1405
    def get_file_graph(self):
 
1406
        return graph.Graph(self.texts)
 
1407
 
 
1408
    @needs_read_lock
747
1409
    def has_revision(self, revision_id):
748
 
        """See Repository.has_revision()."""
749
 
        if revision_id == NULL_REVISION:
750
 
            # The null revision is always present.
751
 
            return True
752
 
        path = self.bzrdir._path_for_remote_call(self._client)
753
 
        response = self._call('Repository.has_revision', path, revision_id)
754
 
        if response[0] not in ('yes', 'no'):
755
 
            raise errors.UnexpectedSmartServerResponse(response)
756
 
        if response[0] == 'yes':
757
 
            return True
758
 
        for fallback_repo in self._fallback_repositories:
759
 
            if fallback_repo.has_revision(revision_id):
760
 
                return True
761
 
        return False
 
1410
        """True if this repository has a copy of the revision."""
 
1411
        # Copy of bzrlib.repository.Repository.has_revision
 
1412
        return revision_id in self.has_revisions((revision_id,))
762
1413
 
 
1414
    @needs_read_lock
763
1415
    def has_revisions(self, revision_ids):
764
 
        """See Repository.has_revisions()."""
765
 
        # FIXME: This does many roundtrips, particularly when there are
766
 
        # fallback repositories.  -- mbp 20080905
767
 
        result = set()
768
 
        for revision_id in revision_ids:
769
 
            if self.has_revision(revision_id):
770
 
                result.add(revision_id)
 
1416
        """Probe to find out the presence of multiple revisions.
 
1417
 
 
1418
        :param revision_ids: An iterable of revision_ids.
 
1419
        :return: A set of the revision_ids that were present.
 
1420
        """
 
1421
        # Copy of bzrlib.repository.Repository.has_revisions
 
1422
        parent_map = self.get_parent_map(revision_ids)
 
1423
        result = set(parent_map)
 
1424
        if _mod_revision.NULL_REVISION in revision_ids:
 
1425
            result.add(_mod_revision.NULL_REVISION)
771
1426
        return result
772
1427
 
 
1428
    def _has_same_fallbacks(self, other_repo):
 
1429
        """Returns true if the repositories have the same fallbacks."""
 
1430
        # XXX: copied from Repository; it should be unified into a base class
 
1431
        # <https://bugs.launchpad.net/bzr/+bug/401622>
 
1432
        my_fb = self._fallback_repositories
 
1433
        other_fb = other_repo._fallback_repositories
 
1434
        if len(my_fb) != len(other_fb):
 
1435
            return False
 
1436
        for f, g in zip(my_fb, other_fb):
 
1437
            if not f.has_same_location(g):
 
1438
                return False
 
1439
        return True
 
1440
 
773
1441
    def has_same_location(self, other):
 
1442
        # TODO: Move to RepositoryBase and unify with the regular Repository
 
1443
        # one; unfortunately the tests rely on slightly different behaviour at
 
1444
        # present -- mbp 20090710
774
1445
        return (self.__class__ is other.__class__ and
775
1446
                self.bzrdir.transport.base == other.bzrdir.transport.base)
776
1447
 
779
1450
        parents_provider = self._make_parents_provider(other_repository)
780
1451
        return graph.Graph(parents_provider)
781
1452
 
 
1453
    @needs_read_lock
 
1454
    def get_known_graph_ancestry(self, revision_ids):
 
1455
        """Return the known graph for a set of revision ids and their ancestors.
 
1456
        """
 
1457
        st = static_tuple.StaticTuple
 
1458
        revision_keys = [st(r_id).intern() for r_id in revision_ids]
 
1459
        known_graph = self.revisions.get_known_graph_ancestry(revision_keys)
 
1460
        return graph.GraphThunkIdsToKeys(known_graph)
 
1461
 
782
1462
    def gather_stats(self, revid=None, committers=None):
783
1463
        """See Repository.gather_stats()."""
784
1464
        path = self.bzrdir._path_for_remote_call(self._client)
785
1465
        # revid can be None to indicate no revisions, not just NULL_REVISION
786
 
        if revid is None or revision.is_null(revid):
 
1466
        if revid is None or _mod_revision.is_null(revid):
787
1467
            fmt_revid = ''
788
1468
        else:
789
1469
            fmt_revid = revid
818
1498
 
819
1499
    def get_physical_lock_status(self):
820
1500
        """See Repository.get_physical_lock_status()."""
821
 
        # should be an API call to the server.
822
 
        self._ensure_real()
823
 
        return self._real_repository.get_physical_lock_status()
 
1501
        path = self.bzrdir._path_for_remote_call(self._client)
 
1502
        try:
 
1503
            response = self._call('Repository.get_physical_lock_status', path)
 
1504
        except errors.UnknownSmartMethod:
 
1505
            self._ensure_real()
 
1506
            return self._real_repository.get_physical_lock_status()
 
1507
        if response[0] not in ('yes', 'no'):
 
1508
            raise errors.UnexpectedSmartServerResponse(response)
 
1509
        return (response[0] == 'yes')
824
1510
 
825
1511
    def is_in_write_group(self):
826
1512
        """Return True if there is an open write group.
827
1513
 
828
1514
        write groups are only applicable locally for the smart server..
829
1515
        """
 
1516
        if self._write_group_tokens is not None:
 
1517
            return True
830
1518
        if self._real_repository:
831
1519
            return self._real_repository.is_in_write_group()
832
1520
 
844
1532
    def is_write_locked(self):
845
1533
        return self._lock_mode == 'w'
846
1534
 
 
1535
    def _warn_if_deprecated(self, branch=None):
 
1536
        # If we have a real repository, the check will be done there, if we
 
1537
        # don't the check will be done remotely.
 
1538
        pass
 
1539
 
847
1540
    def lock_read(self):
 
1541
        """Lock the repository for read operations.
 
1542
 
 
1543
        :return: A bzrlib.lock.LogicalLockResult.
 
1544
        """
848
1545
        # wrong eventually - want a local lock cache context
849
1546
        if not self._lock_mode:
 
1547
            self._note_lock('r')
850
1548
            self._lock_mode = 'r'
851
1549
            self._lock_count = 1
852
1550
            self._unstacked_provider.enable_cache(cache_misses=True)
853
1551
            if self._real_repository is not None:
854
1552
                self._real_repository.lock_read()
 
1553
            for repo in self._fallback_repositories:
 
1554
                repo.lock_read()
855
1555
        else:
856
1556
            self._lock_count += 1
857
 
        for repo in self._fallback_repositories:
858
 
            repo.lock_read()
 
1557
        return lock.LogicalLockResult(self.unlock)
859
1558
 
860
1559
    def _remote_lock_write(self, token):
861
1560
        path = self.bzrdir._path_for_remote_call(self._client)
872
1571
 
873
1572
    def lock_write(self, token=None, _skip_rpc=False):
874
1573
        if not self._lock_mode:
 
1574
            self._note_lock('w')
875
1575
            if _skip_rpc:
876
1576
                if self._lock_token is not None:
877
1577
                    if token != self._lock_token:
891
1591
                self._leave_lock = False
892
1592
            self._lock_mode = 'w'
893
1593
            self._lock_count = 1
894
 
            self._unstacked_provider.enable_cache(cache_misses=False)
 
1594
            cache_misses = self._real_repository is None
 
1595
            self._unstacked_provider.enable_cache(cache_misses=cache_misses)
 
1596
            for repo in self._fallback_repositories:
 
1597
                # Writes don't affect fallback repos
 
1598
                repo.lock_read()
895
1599
        elif self._lock_mode == 'r':
896
1600
            raise errors.ReadOnlyError(self)
897
1601
        else:
898
1602
            self._lock_count += 1
899
 
        for repo in self._fallback_repositories:
900
 
            # Writes don't affect fallback repos
901
 
            repo.lock_read()
902
 
        return self._lock_token or None
 
1603
        return RepositoryWriteLockResult(self.unlock, self._lock_token or None)
903
1604
 
904
1605
    def leave_lock_in_place(self):
905
1606
        if not self._lock_token:
954
1655
            self._real_repository.lock_write(self._lock_token)
955
1656
        elif self._lock_mode == 'r':
956
1657
            self._real_repository.lock_read()
 
1658
        if self._write_group_tokens is not None:
 
1659
            # if we are already in a write group, resume it
 
1660
            self._real_repository.resume_write_group(self._write_group_tokens)
 
1661
            self._write_group_tokens = None
957
1662
 
958
1663
    def start_write_group(self):
959
1664
        """Start a write group on the decorated repository.
963
1668
        for older plugins that don't use e.g. the CommitBuilder
964
1669
        facility.
965
1670
        """
966
 
        self._ensure_real()
967
 
        return self._real_repository.start_write_group()
 
1671
        if self._real_repository:
 
1672
            self._ensure_real()
 
1673
            return self._real_repository.start_write_group()
 
1674
        if not self.is_write_locked():
 
1675
            raise errors.NotWriteLocked(self)
 
1676
        if self._write_group_tokens is not None:
 
1677
            raise errors.BzrError('already in a write group')
 
1678
        path = self.bzrdir._path_for_remote_call(self._client)
 
1679
        try:
 
1680
            response = self._call('Repository.start_write_group', path,
 
1681
                self._lock_token)
 
1682
        except (errors.UnknownSmartMethod, errors.UnsuspendableWriteGroup):
 
1683
            self._ensure_real()
 
1684
            return self._real_repository.start_write_group()
 
1685
        if response[0] != 'ok':
 
1686
            raise errors.UnexpectedSmartServerResponse(response)
 
1687
        self._write_group_tokens = response[1]
968
1688
 
969
1689
    def _unlock(self, token):
970
1690
        path = self.bzrdir._path_for_remote_call(self._client)
979
1699
        else:
980
1700
            raise errors.UnexpectedSmartServerResponse(response)
981
1701
 
 
1702
    @only_raises(errors.LockNotHeld, errors.LockBroken)
982
1703
    def unlock(self):
983
1704
        if not self._lock_count:
984
 
            raise errors.LockNotHeld(self)
 
1705
            return lock.cant_unlock_not_held(self)
985
1706
        self._lock_count -= 1
986
1707
        if self._lock_count > 0:
987
1708
            return
996
1717
            # This is just to let the _real_repository stay up to date.
997
1718
            if self._real_repository is not None:
998
1719
                self._real_repository.unlock()
 
1720
            elif self._write_group_tokens is not None:
 
1721
                self.abort_write_group()
999
1722
        finally:
1000
1723
            # The rpc-level lock should be released even if there was a
1001
1724
            # problem releasing the vfs-based lock.
1006
1729
                self._lock_token = None
1007
1730
                if not self._leave_lock:
1008
1731
                    self._unlock(old_token)
 
1732
        # Fallbacks are always 'lock_read()' so we don't pay attention to
 
1733
        # self._leave_lock
 
1734
        for repo in self._fallback_repositories:
 
1735
            repo.unlock()
1009
1736
 
1010
1737
    def break_lock(self):
1011
1738
        # should hand off to the network
1012
 
        self._ensure_real()
1013
 
        return self._real_repository.break_lock()
 
1739
        path = self.bzrdir._path_for_remote_call(self._client)
 
1740
        try:
 
1741
            response = self._call("Repository.break_lock", path)
 
1742
        except errors.UnknownSmartMethod:
 
1743
            self._ensure_real()
 
1744
            return self._real_repository.break_lock()
 
1745
        if response != ('ok',):
 
1746
            raise errors.UnexpectedSmartServerResponse(response)
1014
1747
 
1015
1748
    def _get_tarball(self, compression):
1016
1749
        """Return a TemporaryFile containing a repository tarball.
1034
1767
            return t
1035
1768
        raise errors.UnexpectedSmartServerResponse(response)
1036
1769
 
 
1770
    @needs_read_lock
1037
1771
    def sprout(self, to_bzrdir, revision_id=None):
1038
 
        # TODO: Option to control what format is created?
1039
 
        self._ensure_real()
1040
 
        dest_repo = self._real_repository._format.initialize(to_bzrdir,
1041
 
                                                             shared=False)
 
1772
        """Create a descendent repository for new development.
 
1773
 
 
1774
        Unlike clone, this does not copy the settings of the repository.
 
1775
        """
 
1776
        dest_repo = self._create_sprouting_repo(to_bzrdir, shared=False)
1042
1777
        dest_repo.fetch(self, revision_id=revision_id)
1043
1778
        return dest_repo
1044
1779
 
 
1780
    def _create_sprouting_repo(self, a_bzrdir, shared):
 
1781
        if not isinstance(a_bzrdir._format, self.bzrdir._format.__class__):
 
1782
            # use target default format.
 
1783
            dest_repo = a_bzrdir.create_repository()
 
1784
        else:
 
1785
            # Most control formats need the repository to be specifically
 
1786
            # created, but on some old all-in-one formats it's not needed
 
1787
            try:
 
1788
                dest_repo = self._format.initialize(a_bzrdir, shared=shared)
 
1789
            except errors.UninitializableFormat:
 
1790
                dest_repo = a_bzrdir.open_repository()
 
1791
        return dest_repo
 
1792
 
1045
1793
    ### These methods are just thin shims to the VFS object for now.
1046
1794
 
 
1795
    @needs_read_lock
1047
1796
    def revision_tree(self, revision_id):
1048
 
        self._ensure_real()
1049
 
        return self._real_repository.revision_tree(revision_id)
 
1797
        revision_id = _mod_revision.ensure_null(revision_id)
 
1798
        if revision_id == _mod_revision.NULL_REVISION:
 
1799
            return InventoryRevisionTree(self,
 
1800
                Inventory(root_id=None), _mod_revision.NULL_REVISION)
 
1801
        else:
 
1802
            return list(self.revision_trees([revision_id]))[0]
1050
1803
 
1051
1804
    def get_serializer_format(self):
1052
 
        self._ensure_real()
1053
 
        return self._real_repository.get_serializer_format()
 
1805
        path = self.bzrdir._path_for_remote_call(self._client)
 
1806
        try:
 
1807
            response = self._call('VersionedFileRepository.get_serializer_format',
 
1808
                path)
 
1809
        except errors.UnknownSmartMethod:
 
1810
            self._ensure_real()
 
1811
            return self._real_repository.get_serializer_format()
 
1812
        if response[0] != 'ok':
 
1813
            raise errors.UnexpectedSmartServerResponse(response)
 
1814
        return response[1]
1054
1815
 
1055
1816
    def get_commit_builder(self, branch, parents, config, timestamp=None,
1056
1817
                           timezone=None, committer=None, revprops=None,
1057
 
                           revision_id=None):
1058
 
        # FIXME: It ought to be possible to call this without immediately
1059
 
        # triggering _ensure_real.  For now it's the easiest thing to do.
1060
 
        self._ensure_real()
1061
 
        real_repo = self._real_repository
1062
 
        builder = real_repo.get_commit_builder(branch, parents,
1063
 
                config, timestamp=timestamp, timezone=timezone,
1064
 
                committer=committer, revprops=revprops, revision_id=revision_id)
1065
 
        return builder
 
1818
                           revision_id=None, lossy=False):
 
1819
        """Obtain a CommitBuilder for this repository.
 
1820
 
 
1821
        :param branch: Branch to commit to.
 
1822
        :param parents: Revision ids of the parents of the new revision.
 
1823
        :param config: Configuration to use.
 
1824
        :param timestamp: Optional timestamp recorded for commit.
 
1825
        :param timezone: Optional timezone for timestamp.
 
1826
        :param committer: Optional committer to set for commit.
 
1827
        :param revprops: Optional dictionary of revision properties.
 
1828
        :param revision_id: Optional revision id.
 
1829
        :param lossy: Whether to discard data that can not be natively
 
1830
            represented, when pushing to a foreign VCS
 
1831
        """
 
1832
        if self._fallback_repositories and not self._format.supports_chks:
 
1833
            raise errors.BzrError("Cannot commit directly to a stacked branch"
 
1834
                " in pre-2a formats. See "
 
1835
                "https://bugs.launchpad.net/bzr/+bug/375013 for details.")
 
1836
        if self._format.rich_root_data:
 
1837
            commit_builder_kls = vf_repository.VersionedFileRootCommitBuilder
 
1838
        else:
 
1839
            commit_builder_kls = vf_repository.VersionedFileCommitBuilder
 
1840
        result = commit_builder_kls(self, parents, config,
 
1841
            timestamp, timezone, committer, revprops, revision_id,
 
1842
            lossy)
 
1843
        self.start_write_group()
 
1844
        return result
1066
1845
 
1067
1846
    def add_fallback_repository(self, repository):
1068
1847
        """Add a repository to use for looking up data not held locally.
1075
1854
        # We need to accumulate additional repositories here, to pass them in
1076
1855
        # on various RPC's.
1077
1856
        #
 
1857
        # Make the check before we lock: this raises an exception.
 
1858
        self._check_fallback_repository(repository)
 
1859
        if self.is_locked():
 
1860
            # We will call fallback.unlock() when we transition to the unlocked
 
1861
            # state, so always add a lock here. If a caller passes us a locked
 
1862
            # repository, they are responsible for unlocking it later.
 
1863
            repository.lock_read()
1078
1864
        self._fallback_repositories.append(repository)
1079
1865
        # If self._real_repository was parameterised already (e.g. because a
1080
1866
        # _real_branch had its get_stacked_on_url method called), then the
1081
1867
        # repository to be added may already be in the _real_repositories list.
1082
1868
        if self._real_repository is not None:
1083
 
            fallback_locations = [repo.bzrdir.root_transport.base for repo in
 
1869
            fallback_locations = [repo.user_url for repo in
1084
1870
                self._real_repository._fallback_repositories]
1085
 
            if repository.bzrdir.root_transport.base not in fallback_locations:
 
1871
            if repository.user_url not in fallback_locations:
1086
1872
                self._real_repository.add_fallback_repository(repository)
1087
1873
 
 
1874
    def _check_fallback_repository(self, repository):
 
1875
        """Check that this repository can fallback to repository safely.
 
1876
 
 
1877
        Raise an error if not.
 
1878
 
 
1879
        :param repository: A repository to fallback to.
 
1880
        """
 
1881
        return _mod_repository.InterRepository._assert_same_model(
 
1882
            self, repository)
 
1883
 
1088
1884
    def add_inventory(self, revid, inv, parents):
1089
1885
        self._ensure_real()
1090
1886
        return self._real_repository.add_inventory(revid, inv, parents)
1091
1887
 
1092
1888
    def add_inventory_by_delta(self, basis_revision_id, delta, new_revision_id,
1093
 
                               parents):
 
1889
            parents, basis_inv=None, propagate_caches=False):
1094
1890
        self._ensure_real()
1095
1891
        return self._real_repository.add_inventory_by_delta(basis_revision_id,
1096
 
            delta, new_revision_id, parents)
1097
 
 
1098
 
    def add_revision(self, rev_id, rev, inv=None, config=None):
1099
 
        self._ensure_real()
1100
 
        return self._real_repository.add_revision(
1101
 
            rev_id, rev, inv=inv, config=config)
 
1892
            delta, new_revision_id, parents, basis_inv=basis_inv,
 
1893
            propagate_caches=propagate_caches)
 
1894
 
 
1895
    def add_revision(self, revision_id, rev, inv=None):
 
1896
        _mod_revision.check_not_reserved_id(revision_id)
 
1897
        key = (revision_id,)
 
1898
        # check inventory present
 
1899
        if not self.inventories.get_parent_map([key]):
 
1900
            if inv is None:
 
1901
                raise errors.WeaveRevisionNotPresent(revision_id,
 
1902
                                                     self.inventories)
 
1903
            else:
 
1904
                # yes, this is not suitable for adding with ghosts.
 
1905
                rev.inventory_sha1 = self.add_inventory(revision_id, inv,
 
1906
                                                        rev.parent_ids)
 
1907
        else:
 
1908
            rev.inventory_sha1 = self.inventories.get_sha1s([key])[key]
 
1909
        self._add_revision(rev)
 
1910
 
 
1911
    def _add_revision(self, rev):
 
1912
        if self._real_repository is not None:
 
1913
            return self._real_repository._add_revision(rev)
 
1914
        text = self._serializer.write_revision_to_string(rev)
 
1915
        key = (rev.revision_id,)
 
1916
        parents = tuple((parent,) for parent in rev.parent_ids)
 
1917
        self._write_group_tokens, missing_keys = self._get_sink().insert_stream(
 
1918
            [('revisions', [FulltextContentFactory(key, parents, None, text)])],
 
1919
            self._format, self._write_group_tokens)
1102
1920
 
1103
1921
    @needs_read_lock
1104
1922
    def get_inventory(self, revision_id):
1105
 
        self._ensure_real()
1106
 
        return self._real_repository.get_inventory(revision_id)
1107
 
 
1108
 
    def iter_inventories(self, revision_ids):
1109
 
        self._ensure_real()
1110
 
        return self._real_repository.iter_inventories(revision_ids)
 
1923
        return list(self.iter_inventories([revision_id]))[0]
 
1924
 
 
1925
    def _iter_inventories_rpc(self, revision_ids, ordering):
 
1926
        if ordering is None:
 
1927
            ordering = 'unordered'
 
1928
        path = self.bzrdir._path_for_remote_call(self._client)
 
1929
        body = "\n".join(revision_ids)
 
1930
        response_tuple, response_handler = (
 
1931
            self._call_with_body_bytes_expecting_body(
 
1932
                "VersionedFileRepository.get_inventories",
 
1933
                (path, ordering), body))
 
1934
        if response_tuple[0] != "ok":
 
1935
            raise errors.UnexpectedSmartServerResponse(response_tuple)
 
1936
        deserializer = inventory_delta.InventoryDeltaDeserializer()
 
1937
        byte_stream = response_handler.read_streamed_body()
 
1938
        decoded = smart_repo._byte_stream_to_stream(byte_stream)
 
1939
        if decoded is None:
 
1940
            # no results whatsoever
 
1941
            return
 
1942
        src_format, stream = decoded
 
1943
        if src_format.network_name() != self._format.network_name():
 
1944
            raise AssertionError(
 
1945
                "Mismatched RemoteRepository and stream src %r, %r" % (
 
1946
                src_format.network_name(), self._format.network_name()))
 
1947
        # ignore the src format, it's not really relevant
 
1948
        prev_inv = Inventory(root_id=None,
 
1949
            revision_id=_mod_revision.NULL_REVISION)
 
1950
        # there should be just one substream, with inventory deltas
 
1951
        substream_kind, substream = stream.next()
 
1952
        if substream_kind != "inventory-deltas":
 
1953
            raise AssertionError(
 
1954
                 "Unexpected stream %r received" % substream_kind)
 
1955
        for record in substream:
 
1956
            (parent_id, new_id, versioned_root, tree_references, invdelta) = (
 
1957
                deserializer.parse_text_bytes(record.get_bytes_as("fulltext")))
 
1958
            if parent_id != prev_inv.revision_id:
 
1959
                raise AssertionError("invalid base %r != %r" % (parent_id,
 
1960
                    prev_inv.revision_id))
 
1961
            inv = prev_inv.create_by_apply_delta(invdelta, new_id)
 
1962
            yield inv, inv.revision_id
 
1963
            prev_inv = inv
 
1964
 
 
1965
    def _iter_inventories_vfs(self, revision_ids, ordering=None):
 
1966
        self._ensure_real()
 
1967
        return self._real_repository._iter_inventories(revision_ids, ordering)
 
1968
 
 
1969
    def iter_inventories(self, revision_ids, ordering=None):
 
1970
        """Get many inventories by revision_ids.
 
1971
 
 
1972
        This will buffer some or all of the texts used in constructing the
 
1973
        inventories in memory, but will only parse a single inventory at a
 
1974
        time.
 
1975
 
 
1976
        :param revision_ids: The expected revision ids of the inventories.
 
1977
        :param ordering: optional ordering, e.g. 'topological'.  If not
 
1978
            specified, the order of revision_ids will be preserved (by
 
1979
            buffering if necessary).
 
1980
        :return: An iterator of inventories.
 
1981
        """
 
1982
        if ((None in revision_ids)
 
1983
            or (_mod_revision.NULL_REVISION in revision_ids)):
 
1984
            raise ValueError('cannot get null revision inventory')
 
1985
        for inv, revid in self._iter_inventories(revision_ids, ordering):
 
1986
            if inv is None:
 
1987
                raise errors.NoSuchRevision(self, revid)
 
1988
            yield inv
 
1989
 
 
1990
    def _iter_inventories(self, revision_ids, ordering=None):
 
1991
        if len(revision_ids) == 0:
 
1992
            return
 
1993
        missing = set(revision_ids)
 
1994
        if ordering is None:
 
1995
            order_as_requested = True
 
1996
            invs = {}
 
1997
            order = list(revision_ids)
 
1998
            order.reverse()
 
1999
            next_revid = order.pop()
 
2000
        else:
 
2001
            order_as_requested = False
 
2002
            if ordering != 'unordered' and self._fallback_repositories:
 
2003
                raise ValueError('unsupported ordering %r' % ordering)
 
2004
        iter_inv_fns = [self._iter_inventories_rpc] + [
 
2005
            fallback._iter_inventories for fallback in
 
2006
            self._fallback_repositories]
 
2007
        try:
 
2008
            for iter_inv in iter_inv_fns:
 
2009
                request = [revid for revid in revision_ids if revid in missing]
 
2010
                for inv, revid in iter_inv(request, ordering):
 
2011
                    if inv is None:
 
2012
                        continue
 
2013
                    missing.remove(inv.revision_id)
 
2014
                    if ordering != 'unordered':
 
2015
                        invs[revid] = inv
 
2016
                    else:
 
2017
                        yield inv, revid
 
2018
                if order_as_requested:
 
2019
                    # Yield as many results as we can while preserving order.
 
2020
                    while next_revid in invs:
 
2021
                        inv = invs.pop(next_revid)
 
2022
                        yield inv, inv.revision_id
 
2023
                        try:
 
2024
                            next_revid = order.pop()
 
2025
                        except IndexError:
 
2026
                            # We still want to fully consume the stream, just
 
2027
                            # in case it is not actually finished at this point
 
2028
                            next_revid = None
 
2029
                            break
 
2030
        except errors.UnknownSmartMethod:
 
2031
            for inv, revid in self._iter_inventories_vfs(revision_ids, ordering):
 
2032
                yield inv, revid
 
2033
            return
 
2034
        # Report missing
 
2035
        if order_as_requested:
 
2036
            if next_revid is not None:
 
2037
                yield None, next_revid
 
2038
            while order:
 
2039
                revid = order.pop()
 
2040
                yield invs.get(revid), revid
 
2041
        else:
 
2042
            while missing:
 
2043
                yield None, missing.pop()
1111
2044
 
1112
2045
    @needs_read_lock
1113
2046
    def get_revision(self, revision_id):
1114
 
        self._ensure_real()
1115
 
        return self._real_repository.get_revision(revision_id)
 
2047
        return self.get_revisions([revision_id])[0]
1116
2048
 
1117
2049
    def get_transaction(self):
1118
2050
        self._ensure_real()
1120
2052
 
1121
2053
    @needs_read_lock
1122
2054
    def clone(self, a_bzrdir, revision_id=None):
1123
 
        self._ensure_real()
1124
 
        return self._real_repository.clone(a_bzrdir, revision_id=revision_id)
 
2055
        dest_repo = self._create_sprouting_repo(
 
2056
            a_bzrdir, shared=self.is_shared())
 
2057
        self.copy_content_into(dest_repo, revision_id)
 
2058
        return dest_repo
1125
2059
 
1126
2060
    def make_working_trees(self):
1127
2061
        """See Repository.make_working_trees"""
1128
 
        self._ensure_real()
1129
 
        return self._real_repository.make_working_trees()
 
2062
        path = self.bzrdir._path_for_remote_call(self._client)
 
2063
        try:
 
2064
            response = self._call('Repository.make_working_trees', path)
 
2065
        except errors.UnknownSmartMethod:
 
2066
            self._ensure_real()
 
2067
            return self._real_repository.make_working_trees()
 
2068
        if response[0] not in ('yes', 'no'):
 
2069
            raise SmartProtocolError('unexpected response code %s' % (response,))
 
2070
        return response[0] == 'yes'
1130
2071
 
1131
2072
    def refresh_data(self):
1132
 
        """Re-read any data needed to to synchronise with disk.
 
2073
        """Re-read any data needed to synchronise with disk.
1133
2074
 
1134
2075
        This method is intended to be called after another repository instance
1135
2076
        (such as one used by a smart server) has inserted data into the
1136
 
        repository. It may not be called during a write group, but may be
1137
 
        called at any other time.
 
2077
        repository. On all repositories this will work outside of write groups.
 
2078
        Some repository formats (pack and newer for bzrlib native formats)
 
2079
        support refresh_data inside write groups. If called inside a write
 
2080
        group on a repository that does not support refreshing in a write group
 
2081
        IsInWriteGroupError will be raised.
1138
2082
        """
1139
 
        if self.is_in_write_group():
1140
 
            raise errors.InternalBzrError(
1141
 
                "May not refresh_data while in a write group.")
1142
2083
        if self._real_repository is not None:
1143
2084
            self._real_repository.refresh_data()
 
2085
        # Refresh the parents cache for this object
 
2086
        self._unstacked_provider.disable_cache()
 
2087
        self._unstacked_provider.enable_cache()
1144
2088
 
1145
2089
    def revision_ids_to_search_result(self, result_set):
1146
2090
        """Convert a set of revision ids to a graph SearchResult."""
1151
2095
        included_keys = result_set.intersection(result_parents)
1152
2096
        start_keys = result_set.difference(included_keys)
1153
2097
        exclude_keys = result_parents.difference(result_set)
1154
 
        result = graph.SearchResult(start_keys, exclude_keys,
 
2098
        result = vf_search.SearchResult(start_keys, exclude_keys,
1155
2099
            len(result_set), result_set)
1156
2100
        return result
1157
2101
 
1158
2102
    @needs_read_lock
1159
 
    def search_missing_revision_ids(self, other, revision_id=None, find_ghosts=True):
 
2103
    def search_missing_revision_ids(self, other,
 
2104
            revision_id=symbol_versioning.DEPRECATED_PARAMETER,
 
2105
            find_ghosts=True, revision_ids=None, if_present_ids=None,
 
2106
            limit=None):
1160
2107
        """Return the revision ids that other has that this does not.
1161
2108
 
1162
2109
        These are returned in topological order.
1163
2110
 
1164
2111
        revision_id: only return revision ids included by revision_id.
1165
2112
        """
1166
 
        return repository.InterRepository.get(
1167
 
            other, self).search_missing_revision_ids(revision_id, find_ghosts)
 
2113
        if symbol_versioning.deprecated_passed(revision_id):
 
2114
            symbol_versioning.warn(
 
2115
                'search_missing_revision_ids(revision_id=...) was '
 
2116
                'deprecated in 2.4.  Use revision_ids=[...] instead.',
 
2117
                DeprecationWarning, stacklevel=2)
 
2118
            if revision_ids is not None:
 
2119
                raise AssertionError(
 
2120
                    'revision_ids is mutually exclusive with revision_id')
 
2121
            if revision_id is not None:
 
2122
                revision_ids = [revision_id]
 
2123
        inter_repo = _mod_repository.InterRepository.get(other, self)
 
2124
        return inter_repo.search_missing_revision_ids(
 
2125
            find_ghosts=find_ghosts, revision_ids=revision_ids,
 
2126
            if_present_ids=if_present_ids, limit=limit)
1168
2127
 
1169
 
    def fetch(self, source, revision_id=None, pb=None, find_ghosts=False,
 
2128
    def fetch(self, source, revision_id=None, find_ghosts=False,
1170
2129
            fetch_spec=None):
1171
2130
        # No base implementation to use as RemoteRepository is not a subclass
1172
2131
        # of Repository; so this is a copy of Repository.fetch().
1177
2136
            raise errors.InternalBzrError(
1178
2137
                "May not fetch while in a write group.")
1179
2138
        # fast path same-url fetch operations
1180
 
        if self.has_same_location(source) and fetch_spec is None:
 
2139
        if (self.has_same_location(source)
 
2140
            and fetch_spec is None
 
2141
            and self._has_same_fallbacks(source)):
1181
2142
            # check that last_revision is in 'from' and then return a
1182
2143
            # no-operation.
1183
2144
            if (revision_id is not None and
1184
 
                not revision.is_null(revision_id)):
 
2145
                not _mod_revision.is_null(revision_id)):
1185
2146
                self.get_revision(revision_id)
1186
2147
            return 0, []
1187
2148
        # if there is no specific appropriate InterRepository, this will get
1188
2149
        # the InterRepository base class, which raises an
1189
2150
        # IncompatibleRepositories when asked to fetch.
1190
 
        inter = repository.InterRepository.get(source, self)
1191
 
        return inter.fetch(revision_id=revision_id, pb=pb,
 
2151
        inter = _mod_repository.InterRepository.get(source, self)
 
2152
        if (fetch_spec is not None and
 
2153
            not getattr(inter, "supports_fetch_spec", False)):
 
2154
            raise errors.UnsupportedOperation(
 
2155
                "fetch_spec not supported for %r" % inter)
 
2156
        return inter.fetch(revision_id=revision_id,
1192
2157
            find_ghosts=find_ghosts, fetch_spec=fetch_spec)
1193
2158
 
1194
2159
    def create_bundle(self, target, base, fileobj, format=None):
1195
2160
        self._ensure_real()
1196
2161
        self._real_repository.create_bundle(target, base, fileobj, format)
1197
2162
 
1198
 
    @needs_read_lock
1199
 
    def get_ancestry(self, revision_id, topo_sorted=True):
1200
 
        self._ensure_real()
1201
 
        return self._real_repository.get_ancestry(revision_id, topo_sorted)
1202
 
 
1203
2163
    def fileids_altered_by_revision_ids(self, revision_ids):
1204
2164
        self._ensure_real()
1205
2165
        return self._real_repository.fileids_altered_by_revision_ids(revision_ids)
1209
2169
        return self._real_repository._get_versioned_file_checker(
1210
2170
            revisions, revision_versions_cache)
1211
2171
 
 
2172
    def _iter_files_bytes_rpc(self, desired_files, absent):
 
2173
        path = self.bzrdir._path_for_remote_call(self._client)
 
2174
        lines = []
 
2175
        identifiers = []
 
2176
        for (file_id, revid, identifier) in desired_files:
 
2177
            lines.append("%s\0%s" % (
 
2178
                osutils.safe_file_id(file_id),
 
2179
                osutils.safe_revision_id(revid)))
 
2180
            identifiers.append(identifier)
 
2181
        (response_tuple, response_handler) = (
 
2182
            self._call_with_body_bytes_expecting_body(
 
2183
            "Repository.iter_files_bytes", (path, ), "\n".join(lines)))
 
2184
        if response_tuple != ('ok', ):
 
2185
            response_handler.cancel_read_body()
 
2186
            raise errors.UnexpectedSmartServerResponse(response_tuple)
 
2187
        byte_stream = response_handler.read_streamed_body()
 
2188
        def decompress_stream(start, byte_stream, unused):
 
2189
            decompressor = zlib.decompressobj()
 
2190
            yield decompressor.decompress(start)
 
2191
            while decompressor.unused_data == "":
 
2192
                try:
 
2193
                    data = byte_stream.next()
 
2194
                except StopIteration:
 
2195
                    break
 
2196
                yield decompressor.decompress(data)
 
2197
            yield decompressor.flush()
 
2198
            unused.append(decompressor.unused_data)
 
2199
        unused = ""
 
2200
        while True:
 
2201
            while not "\n" in unused:
 
2202
                unused += byte_stream.next()
 
2203
            header, rest = unused.split("\n", 1)
 
2204
            args = header.split("\0")
 
2205
            if args[0] == "absent":
 
2206
                absent[identifiers[int(args[3])]] = (args[1], args[2])
 
2207
                unused = rest
 
2208
                continue
 
2209
            elif args[0] == "ok":
 
2210
                idx = int(args[1])
 
2211
            else:
 
2212
                raise errors.UnexpectedSmartServerResponse(args)
 
2213
            unused_chunks = []
 
2214
            yield (identifiers[idx],
 
2215
                decompress_stream(rest, byte_stream, unused_chunks))
 
2216
            unused = "".join(unused_chunks)
 
2217
 
1212
2218
    def iter_files_bytes(self, desired_files):
1213
2219
        """See Repository.iter_file_bytes.
1214
2220
        """
1215
 
        self._ensure_real()
1216
 
        return self._real_repository.iter_files_bytes(desired_files)
 
2221
        try:
 
2222
            absent = {}
 
2223
            for (identifier, bytes_iterator) in self._iter_files_bytes_rpc(
 
2224
                    desired_files, absent):
 
2225
                yield identifier, bytes_iterator
 
2226
            for fallback in self._fallback_repositories:
 
2227
                if not absent:
 
2228
                    break
 
2229
                desired_files = [(key[0], key[1], identifier) for
 
2230
                    (identifier, key) in absent.iteritems()]
 
2231
                for (identifier, bytes_iterator) in fallback.iter_files_bytes(desired_files):
 
2232
                    del absent[identifier]
 
2233
                    yield identifier, bytes_iterator
 
2234
            if absent:
 
2235
                # There may be more missing items, but raise an exception
 
2236
                # for just one.
 
2237
                missing_identifier = absent.keys()[0]
 
2238
                missing_key = absent[missing_identifier]
 
2239
                raise errors.RevisionNotPresent(revision_id=missing_key[1],
 
2240
                    file_id=missing_key[0])
 
2241
        except errors.UnknownSmartMethod:
 
2242
            self._ensure_real()
 
2243
            for (identifier, bytes_iterator) in (
 
2244
                self._real_repository.iter_files_bytes(desired_files)):
 
2245
                yield identifier, bytes_iterator
 
2246
 
 
2247
    def get_cached_parent_map(self, revision_ids):
 
2248
        """See bzrlib.CachingParentsProvider.get_cached_parent_map"""
 
2249
        return self._unstacked_provider.get_cached_parent_map(revision_ids)
1217
2250
 
1218
2251
    def get_parent_map(self, revision_ids):
1219
2252
        """See bzrlib.Graph.get_parent_map()."""
1278
2311
        if parents_map is None:
1279
2312
            # Repository is not locked, so there's no cache.
1280
2313
            parents_map = {}
1281
 
        # start_set is all the keys in the cache
1282
 
        start_set = set(parents_map)
1283
 
        # result set is all the references to keys in the cache
1284
 
        result_parents = set()
1285
 
        for parents in parents_map.itervalues():
1286
 
            result_parents.update(parents)
1287
 
        stop_keys = result_parents.difference(start_set)
1288
 
        # We don't need to send ghosts back to the server as a position to
1289
 
        # stop either.
1290
 
        stop_keys.difference_update(self._unstacked_provider.missing_keys)
1291
 
        key_count = len(parents_map)
1292
 
        if (NULL_REVISION in result_parents
1293
 
            and NULL_REVISION in self._unstacked_provider.missing_keys):
1294
 
            # If we pruned NULL_REVISION from the stop_keys because it's also
1295
 
            # in our cache of "missing" keys we need to increment our key count
1296
 
            # by 1, because the reconsitituted SearchResult on the server will
1297
 
            # still consider NULL_REVISION to be an included key.
1298
 
            key_count += 1
1299
 
        included_keys = start_set.intersection(result_parents)
1300
 
        start_set.difference_update(included_keys)
 
2314
        if _DEFAULT_SEARCH_DEPTH <= 0:
 
2315
            (start_set, stop_keys,
 
2316
             key_count) = vf_search.search_result_from_parent_map(
 
2317
                parents_map, self._unstacked_provider.missing_keys)
 
2318
        else:
 
2319
            (start_set, stop_keys,
 
2320
             key_count) = vf_search.limited_search_result_from_parent_map(
 
2321
                parents_map, self._unstacked_provider.missing_keys,
 
2322
                keys, depth=_DEFAULT_SEARCH_DEPTH)
1301
2323
        recipe = ('manual', start_set, stop_keys, key_count)
1302
2324
        body = self._serialise_search_recipe(recipe)
1303
2325
        path = self.bzrdir._path_for_remote_call(self._client)
1352
2374
 
1353
2375
    @needs_read_lock
1354
2376
    def get_signature_text(self, revision_id):
1355
 
        self._ensure_real()
1356
 
        return self._real_repository.get_signature_text(revision_id)
 
2377
        path = self.bzrdir._path_for_remote_call(self._client)
 
2378
        try:
 
2379
            response_tuple, response_handler = self._call_expecting_body(
 
2380
                'Repository.get_revision_signature_text', path, revision_id)
 
2381
        except errors.UnknownSmartMethod:
 
2382
            self._ensure_real()
 
2383
            return self._real_repository.get_signature_text(revision_id)
 
2384
        except errors.NoSuchRevision, err:
 
2385
            for fallback in self._fallback_repositories:
 
2386
                try:
 
2387
                    return fallback.get_signature_text(revision_id)
 
2388
                except errors.NoSuchRevision:
 
2389
                    pass
 
2390
            raise err
 
2391
        else:
 
2392
            if response_tuple[0] != 'ok':
 
2393
                raise errors.UnexpectedSmartServerResponse(response_tuple)
 
2394
            return response_handler.read_body_bytes()
1357
2395
 
1358
2396
    @needs_read_lock
1359
 
    def get_inventory_xml(self, revision_id):
1360
 
        self._ensure_real()
1361
 
        return self._real_repository.get_inventory_xml(revision_id)
1362
 
 
1363
 
    def deserialise_inventory(self, revision_id, xml):
1364
 
        self._ensure_real()
1365
 
        return self._real_repository.deserialise_inventory(revision_id, xml)
1366
 
 
 
2397
    def _get_inventory_xml(self, revision_id):
 
2398
        # This call is used by older working tree formats,
 
2399
        # which stored a serialized basis inventory.
 
2400
        self._ensure_real()
 
2401
        return self._real_repository._get_inventory_xml(revision_id)
 
2402
 
 
2403
    @needs_write_lock
1367
2404
    def reconcile(self, other=None, thorough=False):
1368
 
        self._ensure_real()
1369
 
        return self._real_repository.reconcile(other=other, thorough=thorough)
 
2405
        from bzrlib.reconcile import RepoReconciler
 
2406
        path = self.bzrdir._path_for_remote_call(self._client)
 
2407
        try:
 
2408
            response, handler = self._call_expecting_body(
 
2409
                'Repository.reconcile', path, self._lock_token)
 
2410
        except (errors.UnknownSmartMethod, errors.TokenLockingNotSupported):
 
2411
            self._ensure_real()
 
2412
            return self._real_repository.reconcile(other=other, thorough=thorough)
 
2413
        if response != ('ok', ):
 
2414
            raise errors.UnexpectedSmartServerResponse(response)
 
2415
        body = handler.read_body_bytes()
 
2416
        result = RepoReconciler(self)
 
2417
        for line in body.split('\n'):
 
2418
            if not line:
 
2419
                continue
 
2420
            key, val_text = line.split(':')
 
2421
            if key == "garbage_inventories":
 
2422
                result.garbage_inventories = int(val_text)
 
2423
            elif key == "inconsistent_parents":
 
2424
                result.inconsistent_parents = int(val_text)
 
2425
            else:
 
2426
                mutter("unknown reconcile key %r" % key)
 
2427
        return result
1370
2428
 
1371
2429
    def all_revision_ids(self):
1372
 
        self._ensure_real()
1373
 
        return self._real_repository.all_revision_ids()
 
2430
        path = self.bzrdir._path_for_remote_call(self._client)
 
2431
        try:
 
2432
            response_tuple, response_handler = self._call_expecting_body(
 
2433
                "Repository.all_revision_ids", path)
 
2434
        except errors.UnknownSmartMethod:
 
2435
            self._ensure_real()
 
2436
            return self._real_repository.all_revision_ids()
 
2437
        if response_tuple != ("ok", ):
 
2438
            raise errors.UnexpectedSmartServerResponse(response_tuple)
 
2439
        revids = set(response_handler.read_body_bytes().splitlines())
 
2440
        for fallback in self._fallback_repositories:
 
2441
            revids.update(set(fallback.all_revision_ids()))
 
2442
        return list(revids)
 
2443
 
 
2444
    def _filtered_revision_trees(self, revision_ids, file_ids):
 
2445
        """Return Tree for a revision on this branch with only some files.
 
2446
 
 
2447
        :param revision_ids: a sequence of revision-ids;
 
2448
          a revision-id may not be None or 'null:'
 
2449
        :param file_ids: if not None, the result is filtered
 
2450
          so that only those file-ids, their parents and their
 
2451
          children are included.
 
2452
        """
 
2453
        inventories = self.iter_inventories(revision_ids)
 
2454
        for inv in inventories:
 
2455
            # Should we introduce a FilteredRevisionTree class rather
 
2456
            # than pre-filter the inventory here?
 
2457
            filtered_inv = inv.filter(file_ids)
 
2458
            yield InventoryRevisionTree(self, filtered_inv, filtered_inv.revision_id)
1374
2459
 
1375
2460
    @needs_read_lock
1376
2461
    def get_deltas_for_revisions(self, revisions, specific_fileids=None):
1377
 
        self._ensure_real()
1378
 
        return self._real_repository.get_deltas_for_revisions(revisions,
1379
 
            specific_fileids=specific_fileids)
 
2462
        medium = self._client._medium
 
2463
        if medium._is_remote_before((1, 2)):
 
2464
            self._ensure_real()
 
2465
            for delta in self._real_repository.get_deltas_for_revisions(
 
2466
                    revisions, specific_fileids):
 
2467
                yield delta
 
2468
            return
 
2469
        # Get the revision-ids of interest
 
2470
        required_trees = set()
 
2471
        for revision in revisions:
 
2472
            required_trees.add(revision.revision_id)
 
2473
            required_trees.update(revision.parent_ids[:1])
 
2474
 
 
2475
        # Get the matching filtered trees. Note that it's more
 
2476
        # efficient to pass filtered trees to changes_from() rather
 
2477
        # than doing the filtering afterwards. changes_from() could
 
2478
        # arguably do the filtering itself but it's path-based, not
 
2479
        # file-id based, so filtering before or afterwards is
 
2480
        # currently easier.
 
2481
        if specific_fileids is None:
 
2482
            trees = dict((t.get_revision_id(), t) for
 
2483
                t in self.revision_trees(required_trees))
 
2484
        else:
 
2485
            trees = dict((t.get_revision_id(), t) for
 
2486
                t in self._filtered_revision_trees(required_trees,
 
2487
                specific_fileids))
 
2488
 
 
2489
        # Calculate the deltas
 
2490
        for revision in revisions:
 
2491
            if not revision.parent_ids:
 
2492
                old_tree = self.revision_tree(_mod_revision.NULL_REVISION)
 
2493
            else:
 
2494
                old_tree = trees[revision.parent_ids[0]]
 
2495
            yield trees[revision.revision_id].changes_from(old_tree)
1380
2496
 
1381
2497
    @needs_read_lock
1382
2498
    def get_revision_delta(self, revision_id, specific_fileids=None):
1383
 
        self._ensure_real()
1384
 
        return self._real_repository.get_revision_delta(revision_id,
1385
 
            specific_fileids=specific_fileids)
 
2499
        r = self.get_revision(revision_id)
 
2500
        return list(self.get_deltas_for_revisions([r],
 
2501
            specific_fileids=specific_fileids))[0]
1386
2502
 
1387
2503
    @needs_read_lock
1388
2504
    def revision_trees(self, revision_ids):
1389
 
        self._ensure_real()
1390
 
        return self._real_repository.revision_trees(revision_ids)
 
2505
        inventories = self.iter_inventories(revision_ids)
 
2506
        for inv in inventories:
 
2507
            yield InventoryRevisionTree(self, inv, inv.revision_id)
1391
2508
 
1392
2509
    @needs_read_lock
1393
2510
    def get_revision_reconcile(self, revision_id):
1395
2512
        return self._real_repository.get_revision_reconcile(revision_id)
1396
2513
 
1397
2514
    @needs_read_lock
1398
 
    def check(self, revision_ids=None):
 
2515
    def check(self, revision_ids=None, callback_refs=None, check_repo=True):
1399
2516
        self._ensure_real()
1400
 
        return self._real_repository.check(revision_ids=revision_ids)
 
2517
        return self._real_repository.check(revision_ids=revision_ids,
 
2518
            callback_refs=callback_refs, check_repo=check_repo)
1401
2519
 
1402
2520
    def copy_content_into(self, destination, revision_id=None):
1403
 
        self._ensure_real()
1404
 
        return self._real_repository.copy_content_into(
1405
 
            destination, revision_id=revision_id)
 
2521
        """Make a complete copy of the content in self into destination.
 
2522
 
 
2523
        This is a destructive operation! Do not use it on existing
 
2524
        repositories.
 
2525
        """
 
2526
        interrepo = _mod_repository.InterRepository.get(self, destination)
 
2527
        return interrepo.copy_content(revision_id)
1406
2528
 
1407
2529
    def _copy_repository_tarball(self, to_bzrdir, revision_id=None):
1408
2530
        # get a tarball of the remote repository, and copy from that into the
1409
2531
        # destination
1410
 
        from bzrlib import osutils
1411
2532
        import tarfile
1412
2533
        # TODO: Maybe a progress bar while streaming the tarball?
1413
 
        note("Copying repository content as tarball...")
 
2534
        note(gettext("Copying repository content as tarball..."))
1414
2535
        tar_file = self._get_tarball('bz2')
1415
2536
        if tar_file is None:
1416
2537
            return None
1421
2542
            tmpdir = osutils.mkdtemp()
1422
2543
            try:
1423
2544
                _extract_tar(tar, tmpdir)
1424
 
                tmp_bzrdir = BzrDir.open(tmpdir)
 
2545
                tmp_bzrdir = _mod_bzrdir.BzrDir.open(tmpdir)
1425
2546
                tmp_repo = tmp_bzrdir.open_repository()
1426
2547
                tmp_repo.copy_content_into(destination, revision_id)
1427
2548
            finally:
1443
2564
        return self._real_repository.inventories
1444
2565
 
1445
2566
    @needs_write_lock
1446
 
    def pack(self):
 
2567
    def pack(self, hint=None, clean_obsolete_packs=False):
1447
2568
        """Compress the data within the repository.
1448
 
 
1449
 
        This is not currently implemented within the smart server.
1450
2569
        """
1451
 
        self._ensure_real()
1452
 
        return self._real_repository.pack()
 
2570
        if hint is None:
 
2571
            body = ""
 
2572
        else:
 
2573
            body = "".join([l+"\n" for l in hint])
 
2574
        path = self.bzrdir._path_for_remote_call(self._client)
 
2575
        try:
 
2576
            response, handler = self._call_with_body_bytes_expecting_body(
 
2577
                'Repository.pack', (path, self._lock_token,
 
2578
                    str(clean_obsolete_packs)), body)
 
2579
        except errors.UnknownSmartMethod:
 
2580
            self._ensure_real()
 
2581
            return self._real_repository.pack(hint=hint,
 
2582
                clean_obsolete_packs=clean_obsolete_packs)
 
2583
        handler.cancel_read_body()
 
2584
        if response != ('ok', ):
 
2585
            raise errors.UnexpectedSmartServerResponse(response)
1453
2586
 
1454
2587
    @property
1455
2588
    def revisions(self):
1456
2589
        """Decorate the real repository for now.
1457
2590
 
1458
 
        In the short term this should become a real object to intercept graph
1459
 
        lookups.
1460
 
 
1461
2591
        In the long term a full blown network facility is needed.
1462
2592
        """
1463
2593
        self._ensure_real()
1491
2621
 
1492
2622
    @needs_write_lock
1493
2623
    def sign_revision(self, revision_id, gpg_strategy):
1494
 
        self._ensure_real()
1495
 
        return self._real_repository.sign_revision(revision_id, gpg_strategy)
 
2624
        testament = _mod_testament.Testament.from_revision(self, revision_id)
 
2625
        plaintext = testament.as_short_text()
 
2626
        self.store_revision_signature(gpg_strategy, plaintext, revision_id)
1496
2627
 
1497
2628
    @property
1498
2629
    def texts(self):
1504
2635
        self._ensure_real()
1505
2636
        return self._real_repository.texts
1506
2637
 
 
2638
    def _iter_revisions_rpc(self, revision_ids):
 
2639
        body = "\n".join(revision_ids)
 
2640
        path = self.bzrdir._path_for_remote_call(self._client)
 
2641
        response_tuple, response_handler = (
 
2642
            self._call_with_body_bytes_expecting_body(
 
2643
            "Repository.iter_revisions", (path, ), body))
 
2644
        if response_tuple[0] != "ok":
 
2645
            raise errors.UnexpectedSmartServerResponse(response_tuple)
 
2646
        serializer_format = response_tuple[1]
 
2647
        serializer = serializer_format_registry.get(serializer_format)
 
2648
        byte_stream = response_handler.read_streamed_body()
 
2649
        decompressor = zlib.decompressobj()
 
2650
        chunks = []
 
2651
        for bytes in byte_stream:
 
2652
            chunks.append(decompressor.decompress(bytes))
 
2653
            if decompressor.unused_data != "":
 
2654
                chunks.append(decompressor.flush())
 
2655
                yield serializer.read_revision_from_string("".join(chunks))
 
2656
                unused = decompressor.unused_data
 
2657
                decompressor = zlib.decompressobj()
 
2658
                chunks = [decompressor.decompress(unused)]
 
2659
        chunks.append(decompressor.flush())
 
2660
        text = "".join(chunks)
 
2661
        if text != "":
 
2662
            yield serializer.read_revision_from_string("".join(chunks))
 
2663
 
1507
2664
    @needs_read_lock
1508
2665
    def get_revisions(self, revision_ids):
1509
 
        self._ensure_real()
1510
 
        return self._real_repository.get_revisions(revision_ids)
 
2666
        if revision_ids is None:
 
2667
            revision_ids = self.all_revision_ids()
 
2668
        else:
 
2669
            for rev_id in revision_ids:
 
2670
                if not rev_id or not isinstance(rev_id, basestring):
 
2671
                    raise errors.InvalidRevisionId(
 
2672
                        revision_id=rev_id, branch=self)
 
2673
        try:
 
2674
            missing = set(revision_ids)
 
2675
            revs = {}
 
2676
            for rev in self._iter_revisions_rpc(revision_ids):
 
2677
                missing.remove(rev.revision_id)
 
2678
                revs[rev.revision_id] = rev
 
2679
        except errors.UnknownSmartMethod:
 
2680
            self._ensure_real()
 
2681
            return self._real_repository.get_revisions(revision_ids)
 
2682
        for fallback in self._fallback_repositories:
 
2683
            if not missing:
 
2684
                break
 
2685
            for revid in list(missing):
 
2686
                # XXX JRV 2011-11-20: It would be nice if there was a
 
2687
                # public method on Repository that could be used to query
 
2688
                # for revision objects *without* failing completely if one
 
2689
                # was missing. There is VersionedFileRepository._iter_revisions,
 
2690
                # but unfortunately that's private and not provided by
 
2691
                # all repository implementations.
 
2692
                try:
 
2693
                    revs[revid] = fallback.get_revision(revid)
 
2694
                except errors.NoSuchRevision:
 
2695
                    pass
 
2696
                else:
 
2697
                    missing.remove(revid)
 
2698
        if missing:
 
2699
            raise errors.NoSuchRevision(self, list(missing)[0])
 
2700
        return [revs[revid] for revid in revision_ids]
1511
2701
 
1512
2702
    def supports_rich_root(self):
1513
2703
        return self._format.rich_root_data
1514
2704
 
1515
 
    def iter_reverse_revision_history(self, revision_id):
1516
 
        self._ensure_real()
1517
 
        return self._real_repository.iter_reverse_revision_history(revision_id)
1518
 
 
1519
2705
    @property
1520
2706
    def _serializer(self):
1521
2707
        return self._format._serializer
1522
2708
 
 
2709
    @needs_write_lock
1523
2710
    def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1524
 
        self._ensure_real()
1525
 
        return self._real_repository.store_revision_signature(
1526
 
            gpg_strategy, plaintext, revision_id)
 
2711
        signature = gpg_strategy.sign(plaintext)
 
2712
        self.add_signature_text(revision_id, signature)
1527
2713
 
1528
2714
    def add_signature_text(self, revision_id, signature):
1529
 
        self._ensure_real()
1530
 
        return self._real_repository.add_signature_text(revision_id, signature)
 
2715
        if self._real_repository:
 
2716
            # If there is a real repository the write group will
 
2717
            # be in the real repository as well, so use that:
 
2718
            self._ensure_real()
 
2719
            return self._real_repository.add_signature_text(
 
2720
                revision_id, signature)
 
2721
        path = self.bzrdir._path_for_remote_call(self._client)
 
2722
        response, handler = self._call_with_body_bytes_expecting_body(
 
2723
            'Repository.add_signature_text', (path, self._lock_token,
 
2724
                revision_id) + tuple(self._write_group_tokens), signature)
 
2725
        handler.cancel_read_body()
 
2726
        self.refresh_data()
 
2727
        if response[0] != 'ok':
 
2728
            raise errors.UnexpectedSmartServerResponse(response)
 
2729
        self._write_group_tokens = response[1:]
1531
2730
 
1532
2731
    def has_signature_for_revision_id(self, revision_id):
1533
 
        self._ensure_real()
1534
 
        return self._real_repository.has_signature_for_revision_id(revision_id)
 
2732
        path = self.bzrdir._path_for_remote_call(self._client)
 
2733
        try:
 
2734
            response = self._call('Repository.has_signature_for_revision_id',
 
2735
                path, revision_id)
 
2736
        except errors.UnknownSmartMethod:
 
2737
            self._ensure_real()
 
2738
            return self._real_repository.has_signature_for_revision_id(
 
2739
                revision_id)
 
2740
        if response[0] not in ('yes', 'no'):
 
2741
            raise SmartProtocolError('unexpected response code %s' % (response,))
 
2742
        if response[0] == 'yes':
 
2743
            return True
 
2744
        for fallback in self._fallback_repositories:
 
2745
            if fallback.has_signature_for_revision_id(revision_id):
 
2746
                return True
 
2747
        return False
 
2748
 
 
2749
    @needs_read_lock
 
2750
    def verify_revision_signature(self, revision_id, gpg_strategy):
 
2751
        if not self.has_signature_for_revision_id(revision_id):
 
2752
            return gpg.SIGNATURE_NOT_SIGNED, None
 
2753
        signature = self.get_signature_text(revision_id)
 
2754
 
 
2755
        testament = _mod_testament.Testament.from_revision(self, revision_id)
 
2756
        plaintext = testament.as_short_text()
 
2757
 
 
2758
        return gpg_strategy.verify(signature, plaintext)
1535
2759
 
1536
2760
    def item_keys_introduced_by(self, revision_ids, _files_pb=None):
1537
2761
        self._ensure_real()
1538
2762
        return self._real_repository.item_keys_introduced_by(revision_ids,
1539
2763
            _files_pb=_files_pb)
1540
2764
 
1541
 
    def revision_graph_can_have_wrong_parents(self):
1542
 
        # The answer depends on the remote repo format.
1543
 
        self._ensure_real()
1544
 
        return self._real_repository.revision_graph_can_have_wrong_parents()
1545
 
 
1546
 
    def _find_inconsistent_revision_parents(self):
1547
 
        self._ensure_real()
1548
 
        return self._real_repository._find_inconsistent_revision_parents()
 
2765
    def _find_inconsistent_revision_parents(self, revisions_iterator=None):
 
2766
        self._ensure_real()
 
2767
        return self._real_repository._find_inconsistent_revision_parents(
 
2768
            revisions_iterator)
1549
2769
 
1550
2770
    def _check_for_inconsistent_revision_parents(self):
1551
2771
        self._ensure_real()
1555
2775
        providers = [self._unstacked_provider]
1556
2776
        if other is not None:
1557
2777
            providers.insert(0, other)
1558
 
        providers.extend(r._make_parents_provider() for r in
1559
 
                         self._fallback_repositories)
1560
 
        return graph._StackedParentsProvider(providers)
 
2778
        return graph.StackedParentsProvider(_LazyListJoin(
 
2779
            providers, self._fallback_repositories))
1561
2780
 
1562
2781
    def _serialise_search_recipe(self, recipe):
1563
2782
        """Serialise a graph search recipe.
1571
2790
        return '\n'.join((start_keys, stop_keys, count))
1572
2791
 
1573
2792
    def _serialise_search_result(self, search_result):
1574
 
        if isinstance(search_result, graph.PendingAncestryResult):
1575
 
            parts = ['ancestry-of']
1576
 
            parts.extend(search_result.heads)
1577
 
        else:
1578
 
            recipe = search_result.get_recipe()
1579
 
            parts = [recipe[0], self._serialise_search_recipe(recipe)]
 
2793
        parts = search_result.get_network_struct()
1580
2794
        return '\n'.join(parts)
1581
2795
 
1582
2796
    def autopack(self):
1592
2806
            raise errors.UnexpectedSmartServerResponse(response)
1593
2807
 
1594
2808
 
1595
 
class RemoteStreamSink(repository.StreamSink):
 
2809
class RemoteStreamSink(vf_repository.StreamSink):
1596
2810
 
1597
2811
    def _insert_real(self, stream, src_format, resume_tokens):
1598
2812
        self.target_repo._ensure_real()
1604
2818
 
1605
2819
    def insert_stream(self, stream, src_format, resume_tokens):
1606
2820
        target = self.target_repo
 
2821
        target._unstacked_provider.missing_keys.clear()
 
2822
        candidate_calls = [('Repository.insert_stream_1.19', (1, 19))]
1607
2823
        if target._lock_token:
1608
 
            verb = 'Repository.insert_stream_locked'
1609
 
            extra_args = (target._lock_token or '',)
1610
 
            required_version = (1, 14)
 
2824
            candidate_calls.append(('Repository.insert_stream_locked', (1, 14)))
 
2825
            lock_args = (target._lock_token or '',)
1611
2826
        else:
1612
 
            verb = 'Repository.insert_stream'
1613
 
            extra_args = ()
1614
 
            required_version = (1, 13)
 
2827
            candidate_calls.append(('Repository.insert_stream', (1, 13)))
 
2828
            lock_args = ()
1615
2829
        client = target._client
1616
2830
        medium = client._medium
1617
 
        if medium._is_remote_before(required_version):
1618
 
            # No possible way this can work.
1619
 
            return self._insert_real(stream, src_format, resume_tokens)
1620
2831
        path = target.bzrdir._path_for_remote_call(client)
1621
 
        if not resume_tokens:
1622
 
            # XXX: Ugly but important for correctness, *will* be fixed during
1623
 
            # 1.13 cycle. Pushing a stream that is interrupted results in a
1624
 
            # fallback to the _real_repositories sink *with a partial stream*.
1625
 
            # Thats bad because we insert less data than bzr expected. To avoid
1626
 
            # this we do a trial push to make sure the verb is accessible, and
1627
 
            # do not fallback when actually pushing the stream. A cleanup patch
1628
 
            # is going to look at rewinding/restarting the stream/partial
1629
 
            # buffering etc.
 
2832
        # Probe for the verb to use with an empty stream before sending the
 
2833
        # real stream to it.  We do this both to avoid the risk of sending a
 
2834
        # large request that is then rejected, and because we don't want to
 
2835
        # implement a way to buffer, rewind, or restart the stream.
 
2836
        found_verb = False
 
2837
        for verb, required_version in candidate_calls:
 
2838
            if medium._is_remote_before(required_version):
 
2839
                continue
 
2840
            if resume_tokens:
 
2841
                # We've already done the probing (and set _is_remote_before) on
 
2842
                # a previous insert.
 
2843
                found_verb = True
 
2844
                break
1630
2845
            byte_stream = smart_repo._stream_to_byte_stream([], src_format)
1631
2846
            try:
1632
2847
                response = client.call_with_body_stream(
1633
 
                    (verb, path, '') + extra_args, byte_stream)
 
2848
                    (verb, path, '') + lock_args, byte_stream)
1634
2849
            except errors.UnknownSmartMethod:
1635
2850
                medium._remember_remote_is_before(required_version)
1636
 
                return self._insert_real(stream, src_format, resume_tokens)
 
2851
            else:
 
2852
                found_verb = True
 
2853
                break
 
2854
        if not found_verb:
 
2855
            # Have to use VFS.
 
2856
            return self._insert_real(stream, src_format, resume_tokens)
 
2857
        self._last_inv_record = None
 
2858
        self._last_substream = None
 
2859
        if required_version < (1, 19):
 
2860
            # Remote side doesn't support inventory deltas.  Wrap the stream to
 
2861
            # make sure we don't send any.  If the stream contains inventory
 
2862
            # deltas we'll interrupt the smart insert_stream request and
 
2863
            # fallback to VFS.
 
2864
            stream = self._stop_stream_if_inventory_delta(stream)
1637
2865
        byte_stream = smart_repo._stream_to_byte_stream(
1638
2866
            stream, src_format)
1639
2867
        resume_tokens = ' '.join(resume_tokens)
1640
2868
        response = client.call_with_body_stream(
1641
 
            (verb, path, resume_tokens) + extra_args, byte_stream)
 
2869
            (verb, path, resume_tokens) + lock_args, byte_stream)
1642
2870
        if response[0][0] not in ('ok', 'missing-basis'):
1643
2871
            raise errors.UnexpectedSmartServerResponse(response)
 
2872
        if self._last_substream is not None:
 
2873
            # The stream included an inventory-delta record, but the remote
 
2874
            # side isn't new enough to support them.  So we need to send the
 
2875
            # rest of the stream via VFS.
 
2876
            self.target_repo.refresh_data()
 
2877
            return self._resume_stream_with_vfs(response, src_format)
1644
2878
        if response[0][0] == 'missing-basis':
1645
2879
            tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
1646
2880
            resume_tokens = tokens
1649
2883
            self.target_repo.refresh_data()
1650
2884
            return [], set()
1651
2885
 
1652
 
 
1653
 
class RemoteStreamSource(repository.StreamSource):
 
2886
    def _resume_stream_with_vfs(self, response, src_format):
 
2887
        """Resume sending a stream via VFS, first resending the record and
 
2888
        substream that couldn't be sent via an insert_stream verb.
 
2889
        """
 
2890
        if response[0][0] == 'missing-basis':
 
2891
            tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
 
2892
            # Ignore missing_keys, we haven't finished inserting yet
 
2893
        else:
 
2894
            tokens = []
 
2895
        def resume_substream():
 
2896
            # Yield the substream that was interrupted.
 
2897
            for record in self._last_substream:
 
2898
                yield record
 
2899
            self._last_substream = None
 
2900
        def resume_stream():
 
2901
            # Finish sending the interrupted substream
 
2902
            yield ('inventory-deltas', resume_substream())
 
2903
            # Then simply continue sending the rest of the stream.
 
2904
            for substream_kind, substream in self._last_stream:
 
2905
                yield substream_kind, substream
 
2906
        return self._insert_real(resume_stream(), src_format, tokens)
 
2907
 
 
2908
    def _stop_stream_if_inventory_delta(self, stream):
 
2909
        """Normally this just lets the original stream pass-through unchanged.
 
2910
 
 
2911
        However if any 'inventory-deltas' substream occurs it will stop
 
2912
        streaming, and store the interrupted substream and stream in
 
2913
        self._last_substream and self._last_stream so that the stream can be
 
2914
        resumed by _resume_stream_with_vfs.
 
2915
        """
 
2916
 
 
2917
        stream_iter = iter(stream)
 
2918
        for substream_kind, substream in stream_iter:
 
2919
            if substream_kind == 'inventory-deltas':
 
2920
                self._last_substream = substream
 
2921
                self._last_stream = stream_iter
 
2922
                return
 
2923
            else:
 
2924
                yield substream_kind, substream
 
2925
 
 
2926
 
 
2927
class RemoteStreamSource(vf_repository.StreamSource):
1654
2928
    """Stream data from a remote server."""
1655
2929
 
1656
2930
    def get_stream(self, search):
1657
2931
        if (self.from_repository._fallback_repositories and
1658
2932
            self.to_format._fetch_order == 'topological'):
1659
2933
            return self._real_stream(self.from_repository, search)
1660
 
        return self.missing_parents_chain(search, [self.from_repository] +
1661
 
            self.from_repository._fallback_repositories)
 
2934
        sources = []
 
2935
        seen = set()
 
2936
        repos = [self.from_repository]
 
2937
        while repos:
 
2938
            repo = repos.pop(0)
 
2939
            if repo in seen:
 
2940
                continue
 
2941
            seen.add(repo)
 
2942
            repos.extend(repo._fallback_repositories)
 
2943
            sources.append(repo)
 
2944
        return self.missing_parents_chain(search, sources)
 
2945
 
 
2946
    def get_stream_for_missing_keys(self, missing_keys):
 
2947
        self.from_repository._ensure_real()
 
2948
        real_repo = self.from_repository._real_repository
 
2949
        real_source = real_repo._get_source(self.to_format)
 
2950
        return real_source.get_stream_for_missing_keys(missing_keys)
1662
2951
 
1663
2952
    def _real_stream(self, repo, search):
1664
2953
        """Get a stream for search from repo.
1665
 
        
1666
 
        This never called RemoteStreamSource.get_stream, and is a heler
1667
 
        for RemoteStreamSource._get_stream to allow getting a stream 
 
2954
 
 
2955
        This never called RemoteStreamSource.get_stream, and is a helper
 
2956
        for RemoteStreamSource._get_stream to allow getting a stream
1668
2957
        reliably whether fallback back because of old servers or trying
1669
2958
        to stream from a non-RemoteRepository (which the stacked support
1670
2959
        code will do).
1671
2960
        """
1672
2961
        source = repo._get_source(self.to_format)
1673
2962
        if isinstance(source, RemoteStreamSource):
1674
 
            return repository.StreamSource.get_stream(source, search)
 
2963
            repo._ensure_real()
 
2964
            source = repo._real_repository._get_source(self.to_format)
1675
2965
        return source.get_stream(search)
1676
2966
 
1677
2967
    def _get_stream(self, repo, search):
1694
2984
            return self._real_stream(repo, search)
1695
2985
        client = repo._client
1696
2986
        medium = client._medium
1697
 
        if medium._is_remote_before((1, 13)):
1698
 
            # streaming was added in 1.13
1699
 
            return self._real_stream(repo, search)
1700
2987
        path = repo.bzrdir._path_for_remote_call(client)
1701
 
        try:
1702
 
            search_bytes = repo._serialise_search_result(search)
1703
 
            response = repo._call_with_body_bytes_expecting_body(
1704
 
                'Repository.get_stream',
1705
 
                (path, self.to_format.network_name()), search_bytes)
1706
 
            response_tuple, response_handler = response
1707
 
        except errors.UnknownSmartMethod:
1708
 
            medium._remember_remote_is_before((1,13))
 
2988
        search_bytes = repo._serialise_search_result(search)
 
2989
        args = (path, self.to_format.network_name())
 
2990
        candidate_verbs = [
 
2991
            ('Repository.get_stream_1.19', (1, 19)),
 
2992
            ('Repository.get_stream', (1, 13))]
 
2993
 
 
2994
        found_verb = False
 
2995
        for verb, version in candidate_verbs:
 
2996
            if medium._is_remote_before(version):
 
2997
                continue
 
2998
            try:
 
2999
                response = repo._call_with_body_bytes_expecting_body(
 
3000
                    verb, args, search_bytes)
 
3001
            except errors.UnknownSmartMethod:
 
3002
                medium._remember_remote_is_before(version)
 
3003
            except errors.UnknownErrorFromSmartServer, e:
 
3004
                if isinstance(search, vf_search.EverythingResult):
 
3005
                    error_verb = e.error_from_smart_server.error_verb
 
3006
                    if error_verb == 'BadSearch':
 
3007
                        # Pre-2.4 servers don't support this sort of search.
 
3008
                        # XXX: perhaps falling back to VFS on BadSearch is a
 
3009
                        # good idea in general?  It might provide a little bit
 
3010
                        # of protection against client-side bugs.
 
3011
                        medium._remember_remote_is_before((2, 4))
 
3012
                        break
 
3013
                raise
 
3014
            else:
 
3015
                response_tuple, response_handler = response
 
3016
                found_verb = True
 
3017
                break
 
3018
        if not found_verb:
1709
3019
            return self._real_stream(repo, search)
1710
3020
        if response_tuple[0] != 'ok':
1711
3021
            raise errors.UnexpectedSmartServerResponse(response_tuple)
1712
3022
        byte_stream = response_handler.read_streamed_body()
1713
 
        src_format, stream = smart_repo._byte_stream_to_stream(byte_stream)
 
3023
        src_format, stream = smart_repo._byte_stream_to_stream(byte_stream,
 
3024
            self._record_counter)
1714
3025
        if src_format.network_name() != repo._format.network_name():
1715
3026
            raise AssertionError(
1716
3027
                "Mismatched RemoteRepository and stream src %r, %r" % (
1723
3034
        :param search: The overall search to satisfy with streams.
1724
3035
        :param sources: A list of Repository objects to query.
1725
3036
        """
1726
 
        self.serialiser = self.to_format._serializer
 
3037
        self.from_serialiser = self.from_repository._format._serializer
1727
3038
        self.seen_revs = set()
1728
3039
        self.referenced_revs = set()
1729
3040
        # If there are heads in the search, or the key count is > 0, we are not
1746
3057
    def missing_parents_rev_handler(self, substream):
1747
3058
        for content in substream:
1748
3059
            revision_bytes = content.get_bytes_as('fulltext')
1749
 
            revision = self.serialiser.read_revision_from_string(revision_bytes)
 
3060
            revision = self.from_serialiser.read_revision_from_string(
 
3061
                revision_bytes)
1750
3062
            self.seen_revs.add(content.key[-1])
1751
3063
            self.referenced_revs.update(revision.parent_ids)
1752
3064
            yield content
1787
3099
 
1788
3100
    def _ensure_real(self):
1789
3101
        if self._custom_format is None:
1790
 
            self._custom_format = branch.network_format_registry.get(
1791
 
                self._network_name)
 
3102
            try:
 
3103
                self._custom_format = branch.network_format_registry.get(
 
3104
                    self._network_name)
 
3105
            except KeyError:
 
3106
                raise errors.UnknownFormatError(kind='branch',
 
3107
                    format=self._network_name)
1792
3108
 
1793
3109
    def get_format_description(self):
1794
 
        return 'Remote BZR Branch'
 
3110
        self._ensure_real()
 
3111
        return 'Remote: ' + self._custom_format.get_format_description()
1795
3112
 
1796
3113
    def network_name(self):
1797
3114
        return self._network_name
1798
3115
 
1799
 
    def open(self, a_bzrdir, ignore_fallbacks=False):
1800
 
        return a_bzrdir.open_branch(ignore_fallbacks=ignore_fallbacks)
 
3116
    def open(self, a_bzrdir, name=None, ignore_fallbacks=False):
 
3117
        return a_bzrdir.open_branch(name=name, 
 
3118
            ignore_fallbacks=ignore_fallbacks)
1801
3119
 
1802
 
    def _vfs_initialize(self, a_bzrdir):
 
3120
    def _vfs_initialize(self, a_bzrdir, name, append_revisions_only,
 
3121
                        repository=None):
1803
3122
        # Initialisation when using a local bzrdir object, or a non-vfs init
1804
3123
        # method is not available on the server.
1805
3124
        # self._custom_format is always set - the start of initialize ensures
1806
3125
        # that.
1807
3126
        if isinstance(a_bzrdir, RemoteBzrDir):
1808
3127
            a_bzrdir._ensure_real()
1809
 
            result = self._custom_format.initialize(a_bzrdir._real_bzrdir)
 
3128
            result = self._custom_format.initialize(a_bzrdir._real_bzrdir,
 
3129
                name=name, append_revisions_only=append_revisions_only,
 
3130
                repository=repository)
1810
3131
        else:
1811
3132
            # We assume the bzrdir is parameterised; it may not be.
1812
 
            result = self._custom_format.initialize(a_bzrdir)
 
3133
            result = self._custom_format.initialize(a_bzrdir, name=name,
 
3134
                append_revisions_only=append_revisions_only,
 
3135
                repository=repository)
1813
3136
        if (isinstance(a_bzrdir, RemoteBzrDir) and
1814
3137
            not isinstance(result, RemoteBranch)):
1815
 
            result = RemoteBranch(a_bzrdir, a_bzrdir.find_repository(), result)
 
3138
            result = RemoteBranch(a_bzrdir, a_bzrdir.find_repository(), result,
 
3139
                                  name=name)
1816
3140
        return result
1817
3141
 
1818
 
    def initialize(self, a_bzrdir):
 
3142
    def initialize(self, a_bzrdir, name=None, repository=None,
 
3143
                   append_revisions_only=None):
 
3144
        if name is None:
 
3145
            name = a_bzrdir._get_selected_branch()
1819
3146
        # 1) get the network name to use.
1820
3147
        if self._custom_format:
1821
3148
            network_name = self._custom_format.network_name()
1822
3149
        else:
1823
3150
            # Select the current bzrlib default and ask for that.
1824
 
            reference_bzrdir_format = bzrdir.format_registry.get('default')()
 
3151
            reference_bzrdir_format = controldir.format_registry.get('default')()
1825
3152
            reference_format = reference_bzrdir_format.get_branch_format()
1826
3153
            self._custom_format = reference_format
1827
3154
            network_name = reference_format.network_name()
1828
3155
        # Being asked to create on a non RemoteBzrDir:
1829
3156
        if not isinstance(a_bzrdir, RemoteBzrDir):
1830
 
            return self._vfs_initialize(a_bzrdir)
 
3157
            return self._vfs_initialize(a_bzrdir, name=name,
 
3158
                append_revisions_only=append_revisions_only,
 
3159
                repository=repository)
1831
3160
        medium = a_bzrdir._client._medium
1832
3161
        if medium._is_remote_before((1, 13)):
1833
 
            return self._vfs_initialize(a_bzrdir)
 
3162
            return self._vfs_initialize(a_bzrdir, name=name,
 
3163
                append_revisions_only=append_revisions_only,
 
3164
                repository=repository)
1834
3165
        # Creating on a remote bzr dir.
1835
3166
        # 2) try direct creation via RPC
1836
3167
        path = a_bzrdir._path_for_remote_call(a_bzrdir._client)
 
3168
        if name != "":
 
3169
            # XXX JRV20100304: Support creating colocated branches
 
3170
            raise errors.NoColocatedBranchSupport(self)
1837
3171
        verb = 'BzrDir.create_branch'
1838
3172
        try:
1839
3173
            response = a_bzrdir._call(verb, path, network_name)
1840
3174
        except errors.UnknownSmartMethod:
1841
3175
            # Fallback - use vfs methods
1842
3176
            medium._remember_remote_is_before((1, 13))
1843
 
            return self._vfs_initialize(a_bzrdir)
 
3177
            return self._vfs_initialize(a_bzrdir, name=name,
 
3178
                    append_revisions_only=append_revisions_only,
 
3179
                    repository=repository)
1844
3180
        if response[0] != 'ok':
1845
3181
            raise errors.UnexpectedSmartServerResponse(response)
1846
3182
        # Turn the response into a RemoteRepository object.
1847
3183
        format = RemoteBranchFormat(network_name=response[1])
1848
3184
        repo_format = response_tuple_to_repo_format(response[3:])
1849
 
        if response[2] == '':
1850
 
            repo_bzrdir = a_bzrdir
 
3185
        repo_path = response[2]
 
3186
        if repository is not None:
 
3187
            remote_repo_url = urlutils.join(a_bzrdir.user_url, repo_path)
 
3188
            url_diff = urlutils.relative_url(repository.user_url,
 
3189
                    remote_repo_url)
 
3190
            if url_diff != '.':
 
3191
                raise AssertionError(
 
3192
                    'repository.user_url %r does not match URL from server '
 
3193
                    'response (%r + %r)'
 
3194
                    % (repository.user_url, a_bzrdir.user_url, repo_path))
 
3195
            remote_repo = repository
1851
3196
        else:
1852
 
            repo_bzrdir = RemoteBzrDir(
1853
 
                a_bzrdir.root_transport.clone(response[2]), a_bzrdir._format,
1854
 
                a_bzrdir._client)
1855
 
        remote_repo = RemoteRepository(repo_bzrdir, repo_format)
 
3197
            if repo_path == '':
 
3198
                repo_bzrdir = a_bzrdir
 
3199
            else:
 
3200
                repo_bzrdir = RemoteBzrDir(
 
3201
                    a_bzrdir.root_transport.clone(repo_path), a_bzrdir._format,
 
3202
                    a_bzrdir._client)
 
3203
            remote_repo = RemoteRepository(repo_bzrdir, repo_format)
1856
3204
        remote_branch = RemoteBranch(a_bzrdir, remote_repo,
1857
 
            format=format, setup_stacking=False)
 
3205
            format=format, setup_stacking=False, name=name)
 
3206
        if append_revisions_only:
 
3207
            remote_branch.set_append_revisions_only(append_revisions_only)
1858
3208
        # XXX: We know this is a new branch, so it must have revno 0, revid
1859
3209
        # NULL_REVISION. Creating the branch locked would make this be unable
1860
3210
        # to be wrong; here its simply very unlikely to be wrong. RBC 20090225
1875
3225
        self._ensure_real()
1876
3226
        return self._custom_format.supports_stacking()
1877
3227
 
1878
 
 
1879
 
class RemoteBranch(branch.Branch, _RpcHelper):
 
3228
    def supports_set_append_revisions_only(self):
 
3229
        self._ensure_real()
 
3230
        return self._custom_format.supports_set_append_revisions_only()
 
3231
 
 
3232
    def _use_default_local_heads_to_fetch(self):
 
3233
        # If the branch format is a metadir format *and* its heads_to_fetch
 
3234
        # implementation is not overridden vs the base class, we can use the
 
3235
        # base class logic rather than use the heads_to_fetch RPC.  This is
 
3236
        # usually cheaper in terms of net round trips, as the last-revision and
 
3237
        # tags info fetched is cached and would be fetched anyway.
 
3238
        self._ensure_real()
 
3239
        if isinstance(self._custom_format, branch.BranchFormatMetadir):
 
3240
            branch_class = self._custom_format._branch_class()
 
3241
            heads_to_fetch_impl = branch_class.heads_to_fetch.im_func
 
3242
            if heads_to_fetch_impl is branch.Branch.heads_to_fetch.im_func:
 
3243
                return True
 
3244
        return False
 
3245
 
 
3246
 
 
3247
class RemoteBranchStore(_mod_config.IniFileStore):
 
3248
    """Branch store which attempts to use HPSS calls to retrieve branch store.
 
3249
 
 
3250
    Note that this is specific to bzr-based formats.
 
3251
    """
 
3252
 
 
3253
    def __init__(self, branch):
 
3254
        super(RemoteBranchStore, self).__init__()
 
3255
        self.branch = branch
 
3256
        self.id = "branch"
 
3257
        self._real_store = None
 
3258
 
 
3259
    def external_url(self):
 
3260
        return urlutils.join(self.branch.user_url, 'branch.conf')
 
3261
 
 
3262
    def _load_content(self):
 
3263
        path = self.branch._remote_path()
 
3264
        try:
 
3265
            response, handler = self.branch._call_expecting_body(
 
3266
                'Branch.get_config_file', path)
 
3267
        except errors.UnknownSmartMethod:
 
3268
            self._ensure_real()
 
3269
            return self._real_store._load_content()
 
3270
        if len(response) and response[0] != 'ok':
 
3271
            raise errors.UnexpectedSmartServerResponse(response)
 
3272
        return handler.read_body_bytes()
 
3273
 
 
3274
    def _save_content(self, content):
 
3275
        path = self.branch._remote_path()
 
3276
        try:
 
3277
            response, handler = self.branch._call_with_body_bytes_expecting_body(
 
3278
                'Branch.put_config_file', (path,
 
3279
                    self.branch._lock_token, self.branch._repo_lock_token),
 
3280
                content)
 
3281
        except errors.UnknownSmartMethod:
 
3282
            self._ensure_real()
 
3283
            return self._real_store._save_content(content)
 
3284
        handler.cancel_read_body()
 
3285
        if response != ('ok', ):
 
3286
            raise errors.UnexpectedSmartServerResponse(response)
 
3287
 
 
3288
    def _ensure_real(self):
 
3289
        self.branch._ensure_real()
 
3290
        if self._real_store is None:
 
3291
            self._real_store = _mod_config.BranchStore(self.branch)
 
3292
 
 
3293
 
 
3294
class RemoteBranch(branch.Branch, _RpcHelper, lock._RelockDebugMixin):
1880
3295
    """Branch stored on a server accessed by HPSS RPC.
1881
3296
 
1882
3297
    At the moment most operations are mapped down to simple file operations.
1883
3298
    """
1884
3299
 
1885
3300
    def __init__(self, remote_bzrdir, remote_repository, real_branch=None,
1886
 
        _client=None, format=None, setup_stacking=True):
 
3301
        _client=None, format=None, setup_stacking=True, name=None,
 
3302
        possible_transports=None):
1887
3303
        """Create a RemoteBranch instance.
1888
3304
 
1889
3305
        :param real_branch: An optional local implementation of the branch
1895
3311
        :param setup_stacking: If True make an RPC call to determine the
1896
3312
            stacked (or not) status of the branch. If False assume the branch
1897
3313
            is not stacked.
 
3314
        :param name: Colocated branch name
1898
3315
        """
1899
3316
        # We intentionally don't call the parent class's __init__, because it
1900
3317
        # will try to assign to self.tags, which is a property in this subclass.
1901
3318
        # And the parent's __init__ doesn't do much anyway.
1902
 
        self._revision_id_to_revno_cache = None
1903
 
        self._partial_revision_id_to_revno_cache = {}
1904
 
        self._revision_history_cache = None
1905
 
        self._last_revision_info_cache = None
1906
 
        self._merge_sorted_revisions_cache = None
1907
3319
        self.bzrdir = remote_bzrdir
 
3320
        self.name = name
1908
3321
        if _client is not None:
1909
3322
            self._client = _client
1910
3323
        else:
1923
3336
        else:
1924
3337
            self._real_branch = None
1925
3338
        # Fill out expected attributes of branch for bzrlib API users.
1926
 
        self.base = self.bzrdir.root_transport.base
 
3339
        self._clear_cached_state()
 
3340
        # TODO: deprecate self.base in favor of user_url
 
3341
        self.base = self.bzrdir.user_url
 
3342
        self._name = name
1927
3343
        self._control_files = None
1928
3344
        self._lock_mode = None
1929
3345
        self._lock_token = None
1930
3346
        self._repo_lock_token = None
1931
3347
        self._lock_count = 0
1932
3348
        self._leave_lock = False
 
3349
        self.conf_store = None
1933
3350
        # Setup a format: note that we cannot call _ensure_real until all the
1934
3351
        # attributes above are set: This code cannot be moved higher up in this
1935
3352
        # function.
1940
3357
                    self._real_branch._format.network_name()
1941
3358
        else:
1942
3359
            self._format = format
 
3360
        # when we do _ensure_real we may need to pass ignore_fallbacks to the
 
3361
        # branch.open_branch method.
 
3362
        self._real_ignore_fallbacks = not setup_stacking
1943
3363
        if not self._format._network_name:
1944
3364
            # Did not get from open_branchV2 - old server.
1945
3365
            self._ensure_real()
1950
3370
        hooks = branch.Branch.hooks['open']
1951
3371
        for hook in hooks:
1952
3372
            hook(self)
 
3373
        self._is_stacked = False
1953
3374
        if setup_stacking:
1954
 
            self._setup_stacking()
 
3375
            self._setup_stacking(possible_transports)
1955
3376
 
1956
 
    def _setup_stacking(self):
 
3377
    def _setup_stacking(self, possible_transports):
1957
3378
        # configure stacking into the remote repository, by reading it from
1958
3379
        # the vfs branch.
1959
3380
        try:
1961
3382
        except (errors.NotStacked, errors.UnstackableBranchFormat,
1962
3383
            errors.UnstackableRepositoryFormat), e:
1963
3384
            return
1964
 
        self._activate_fallback_location(fallback_url, None)
 
3385
        self._is_stacked = True
 
3386
        if possible_transports is None:
 
3387
            possible_transports = []
 
3388
        else:
 
3389
            possible_transports = list(possible_transports)
 
3390
        possible_transports.append(self.bzrdir.root_transport)
 
3391
        self._activate_fallback_location(fallback_url,
 
3392
            possible_transports=possible_transports)
1965
3393
 
1966
3394
    def _get_config(self):
1967
3395
        return RemoteBranchConfig(self)
1968
3396
 
 
3397
    def _get_config_store(self):
 
3398
        if self.conf_store is None:
 
3399
            self.conf_store =  RemoteBranchStore(self)
 
3400
        return self.conf_store
 
3401
 
 
3402
    def store_uncommitted(self, creator):
 
3403
        self._ensure_real()
 
3404
        return self._real_branch.store_uncommitted(creator)
 
3405
 
 
3406
    def get_unshelver(self, tree):
 
3407
        self._ensure_real()
 
3408
        return self._real_branch.get_unshelver(tree)
 
3409
 
1969
3410
    def _get_real_transport(self):
1970
3411
        # if we try vfs access, return the real branch's vfs transport
1971
3412
        self._ensure_real()
1988
3429
                raise AssertionError('smart server vfs must be enabled '
1989
3430
                    'to use vfs implementation')
1990
3431
            self.bzrdir._ensure_real()
1991
 
            self._real_branch = self.bzrdir._real_bzrdir.open_branch()
 
3432
            self._real_branch = self.bzrdir._real_bzrdir.open_branch(
 
3433
                ignore_fallbacks=self._real_ignore_fallbacks, name=self._name)
 
3434
            # The remote branch and the real branch shares the same store. If
 
3435
            # we don't, there will always be cases where one of the stores
 
3436
            # doesn't see an update made on the other.
 
3437
            self._real_branch.conf_store = self.conf_store
1992
3438
            if self.repository._real_repository is None:
1993
3439
                # Give the remote repository the matching real repo.
1994
3440
                real_repo = self._real_branch.repository
2033
3479
                self.bzrdir, self._client)
2034
3480
        return self._control_files
2035
3481
 
2036
 
    def _get_checkout_format(self):
2037
 
        self._ensure_real()
2038
 
        return self._real_branch._get_checkout_format()
2039
 
 
2040
3482
    def get_physical_lock_status(self):
2041
3483
        """See Branch.get_physical_lock_status()."""
2042
 
        # should be an API call to the server, as branches must be lockable.
2043
 
        self._ensure_real()
2044
 
        return self._real_branch.get_physical_lock_status()
 
3484
        try:
 
3485
            response = self._client.call('Branch.get_physical_lock_status',
 
3486
                self._remote_path())
 
3487
        except errors.UnknownSmartMethod:
 
3488
            self._ensure_real()
 
3489
            return self._real_branch.get_physical_lock_status()
 
3490
        if response[0] not in ('yes', 'no'):
 
3491
            raise errors.UnexpectedSmartServerResponse(response)
 
3492
        return (response[0] == 'yes')
2045
3493
 
2046
3494
    def get_stacked_on_url(self):
2047
3495
        """Get the URL this branch is stacked against.
2068
3516
            raise errors.UnexpectedSmartServerResponse(response)
2069
3517
        return response[1]
2070
3518
 
 
3519
    def set_stacked_on_url(self, url):
 
3520
        branch.Branch.set_stacked_on_url(self, url)
 
3521
        # We need the stacked_on_url to be visible both locally (to not query
 
3522
        # it repeatedly) and remotely (so smart verbs can get it server side)
 
3523
        # Without the following line,
 
3524
        # bzrlib.tests.per_branch.test_create_clone.TestCreateClone
 
3525
        # .test_create_clone_on_transport_stacked_hooks_get_stacked_branch
 
3526
        # fails for remote branches -- vila 2012-01-04
 
3527
        self.conf_store.save_changes()
 
3528
        if not url:
 
3529
            self._is_stacked = False
 
3530
        else:
 
3531
            self._is_stacked = True
 
3532
 
2071
3533
    def _vfs_get_tags_bytes(self):
2072
3534
        self._ensure_real()
2073
3535
        return self._real_branch._get_tags_bytes()
2074
3536
 
 
3537
    @needs_read_lock
2075
3538
    def _get_tags_bytes(self):
 
3539
        if self._tags_bytes is None:
 
3540
            self._tags_bytes = self._get_tags_bytes_via_hpss()
 
3541
        return self._tags_bytes
 
3542
 
 
3543
    def _get_tags_bytes_via_hpss(self):
2076
3544
        medium = self._client._medium
2077
3545
        if medium._is_remote_before((1, 13)):
2078
3546
            return self._vfs_get_tags_bytes()
2083
3551
            return self._vfs_get_tags_bytes()
2084
3552
        return response[0]
2085
3553
 
 
3554
    def _vfs_set_tags_bytes(self, bytes):
 
3555
        self._ensure_real()
 
3556
        return self._real_branch._set_tags_bytes(bytes)
 
3557
 
 
3558
    def _set_tags_bytes(self, bytes):
 
3559
        if self.is_locked():
 
3560
            self._tags_bytes = bytes
 
3561
        medium = self._client._medium
 
3562
        if medium._is_remote_before((1, 18)):
 
3563
            self._vfs_set_tags_bytes(bytes)
 
3564
            return
 
3565
        try:
 
3566
            args = (
 
3567
                self._remote_path(), self._lock_token, self._repo_lock_token)
 
3568
            response = self._call_with_body_bytes(
 
3569
                'Branch.set_tags_bytes', args, bytes)
 
3570
        except errors.UnknownSmartMethod:
 
3571
            medium._remember_remote_is_before((1, 18))
 
3572
            self._vfs_set_tags_bytes(bytes)
 
3573
 
2086
3574
    def lock_read(self):
 
3575
        """Lock the branch for read operations.
 
3576
 
 
3577
        :return: A bzrlib.lock.LogicalLockResult.
 
3578
        """
2087
3579
        self.repository.lock_read()
2088
3580
        if not self._lock_mode:
 
3581
            self._note_lock('r')
2089
3582
            self._lock_mode = 'r'
2090
3583
            self._lock_count = 1
2091
3584
            if self._real_branch is not None:
2092
3585
                self._real_branch.lock_read()
2093
3586
        else:
2094
3587
            self._lock_count += 1
 
3588
        return lock.LogicalLockResult(self.unlock)
2095
3589
 
2096
3590
    def _remote_lock_write(self, token):
2097
3591
        if token is None:
2098
3592
            branch_token = repo_token = ''
2099
3593
        else:
2100
3594
            branch_token = token
2101
 
            repo_token = self.repository.lock_write()
 
3595
            repo_token = self.repository.lock_write().repository_token
2102
3596
            self.repository.unlock()
2103
3597
        err_context = {'token': token}
2104
 
        response = self._call(
2105
 
            'Branch.lock_write', self._remote_path(), branch_token,
2106
 
            repo_token or '', **err_context)
 
3598
        try:
 
3599
            response = self._call(
 
3600
                'Branch.lock_write', self._remote_path(), branch_token,
 
3601
                repo_token or '', **err_context)
 
3602
        except errors.LockContention, e:
 
3603
            # The LockContention from the server doesn't have any
 
3604
            # information about the lock_url. We re-raise LockContention
 
3605
            # with valid lock_url.
 
3606
            raise errors.LockContention('(remote lock)',
 
3607
                self.repository.base.split('.bzr/')[0])
2107
3608
        if response[0] != 'ok':
2108
3609
            raise errors.UnexpectedSmartServerResponse(response)
2109
3610
        ok, branch_token, repo_token = response
2111
3612
 
2112
3613
    def lock_write(self, token=None):
2113
3614
        if not self._lock_mode:
 
3615
            self._note_lock('w')
2114
3616
            # Lock the branch and repo in one remote call.
2115
3617
            remote_tokens = self._remote_lock_write(token)
2116
3618
            self._lock_token, self._repo_lock_token = remote_tokens
2129
3631
            self._lock_mode = 'w'
2130
3632
            self._lock_count = 1
2131
3633
        elif self._lock_mode == 'r':
2132
 
            raise errors.ReadOnlyTransaction
 
3634
            raise errors.ReadOnlyError(self)
2133
3635
        else:
2134
3636
            if token is not None:
2135
3637
                # A token was given to lock_write, and we're relocking, so
2140
3642
            self._lock_count += 1
2141
3643
            # Re-lock the repository too.
2142
3644
            self.repository.lock_write(self._repo_lock_token)
2143
 
        return self._lock_token or None
2144
 
 
2145
 
    def _set_tags_bytes(self, bytes):
2146
 
        self._ensure_real()
2147
 
        return self._real_branch._set_tags_bytes(bytes)
 
3645
        return BranchWriteLockResult(self.unlock, self._lock_token or None)
2148
3646
 
2149
3647
    def _unlock(self, branch_token, repo_token):
2150
3648
        err_context = {'token': str((branch_token, repo_token))}
2155
3653
            return
2156
3654
        raise errors.UnexpectedSmartServerResponse(response)
2157
3655
 
 
3656
    @only_raises(errors.LockNotHeld, errors.LockBroken)
2158
3657
    def unlock(self):
2159
3658
        try:
2160
3659
            self._lock_count -= 1
2161
3660
            if not self._lock_count:
 
3661
                if self.conf_store is not None:
 
3662
                    self.conf_store.save_changes()
2162
3663
                self._clear_cached_state()
2163
3664
                mode = self._lock_mode
2164
3665
                self._lock_mode = None
2187
3688
            self.repository.unlock()
2188
3689
 
2189
3690
    def break_lock(self):
2190
 
        self._ensure_real()
2191
 
        return self._real_branch.break_lock()
 
3691
        try:
 
3692
            response = self._call(
 
3693
                'Branch.break_lock', self._remote_path())
 
3694
        except errors.UnknownSmartMethod:
 
3695
            self._ensure_real()
 
3696
            return self._real_branch.break_lock()
 
3697
        if response != ('ok',):
 
3698
            raise errors.UnexpectedSmartServerResponse(response)
2192
3699
 
2193
3700
    def leave_lock_in_place(self):
2194
3701
        if not self._lock_token:
2200
3707
            raise NotImplementedError(self.dont_leave_lock_in_place)
2201
3708
        self._leave_lock = False
2202
3709
 
2203
 
    def _last_revision_info(self):
 
3710
    @needs_read_lock
 
3711
    def get_rev_id(self, revno, history=None):
 
3712
        if revno == 0:
 
3713
            return _mod_revision.NULL_REVISION
 
3714
        last_revision_info = self.last_revision_info()
 
3715
        ok, result = self.repository.get_rev_id_for_revno(
 
3716
            revno, last_revision_info)
 
3717
        if ok:
 
3718
            return result
 
3719
        missing_parent = result[1]
 
3720
        # Either the revision named by the server is missing, or its parent
 
3721
        # is.  Call get_parent_map to determine which, so that we report a
 
3722
        # useful error.
 
3723
        parent_map = self.repository.get_parent_map([missing_parent])
 
3724
        if missing_parent in parent_map:
 
3725
            missing_parent = parent_map[missing_parent]
 
3726
        raise errors.RevisionNotPresent(missing_parent, self.repository)
 
3727
 
 
3728
    def _read_last_revision_info(self):
2204
3729
        response = self._call('Branch.last_revision_info', self._remote_path())
2205
3730
        if response[0] != 'ok':
2206
3731
            raise SmartProtocolError('unexpected response code %s' % (response,))
2210
3735
 
2211
3736
    def _gen_revision_history(self):
2212
3737
        """See Branch._gen_revision_history()."""
 
3738
        if self._is_stacked:
 
3739
            self._ensure_real()
 
3740
            return self._real_branch._gen_revision_history()
2213
3741
        response_tuple, response_handler = self._call_expecting_body(
2214
3742
            'Branch.revision_history', self._remote_path())
2215
3743
        if response_tuple[0] != 'ok':
2266
3794
            raise errors.UnexpectedSmartServerResponse(response)
2267
3795
        self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2268
3796
 
2269
 
    @needs_write_lock
2270
 
    def set_revision_history(self, rev_history):
2271
 
        # Send just the tip revision of the history; the server will generate
2272
 
        # the full history from that.  If the revision doesn't exist in this
2273
 
        # branch, NoSuchRevision will be raised.
2274
 
        if rev_history == []:
2275
 
            rev_id = 'null:'
2276
 
        else:
2277
 
            rev_id = rev_history[-1]
2278
 
        self._set_last_revision(rev_id)
2279
 
        for hook in branch.Branch.hooks['set_rh']:
2280
 
            hook(self, rev_history)
2281
 
        self._cache_revision_history(rev_history)
2282
 
 
2283
3797
    def _get_parent_location(self):
2284
3798
        medium = self._client._medium
2285
3799
        if medium._is_remote_before((1, 13)):
2331
3845
            _override_hook_target=self, **kwargs)
2332
3846
 
2333
3847
    @needs_read_lock
2334
 
    def push(self, target, overwrite=False, stop_revision=None):
 
3848
    def push(self, target, overwrite=False, stop_revision=None, lossy=False):
2335
3849
        self._ensure_real()
2336
3850
        return self._real_branch.push(
2337
 
            target, overwrite=overwrite, stop_revision=stop_revision,
 
3851
            target, overwrite=overwrite, stop_revision=stop_revision, lossy=lossy,
2338
3852
            _override_hook_source_branch=self)
2339
3853
 
 
3854
    def peek_lock_mode(self):
 
3855
        return self._lock_mode
 
3856
 
2340
3857
    def is_locked(self):
2341
3858
        return self._lock_count >= 1
2342
3859
 
2343
3860
    @needs_read_lock
 
3861
    def revision_id_to_dotted_revno(self, revision_id):
 
3862
        """Given a revision id, return its dotted revno.
 
3863
 
 
3864
        :return: a tuple like (1,) or (400,1,3).
 
3865
        """
 
3866
        try:
 
3867
            response = self._call('Branch.revision_id_to_revno',
 
3868
                self._remote_path(), revision_id)
 
3869
        except errors.UnknownSmartMethod:
 
3870
            self._ensure_real()
 
3871
            return self._real_branch.revision_id_to_dotted_revno(revision_id)
 
3872
        if response[0] == 'ok':
 
3873
            return tuple([int(x) for x in response[1:]])
 
3874
        else:
 
3875
            raise errors.UnexpectedSmartServerResponse(response)
 
3876
 
 
3877
    @needs_read_lock
2344
3878
    def revision_id_to_revno(self, revision_id):
2345
 
        self._ensure_real()
2346
 
        return self._real_branch.revision_id_to_revno(revision_id)
 
3879
        """Given a revision id on the branch mainline, return its revno.
 
3880
 
 
3881
        :return: an integer
 
3882
        """
 
3883
        try:
 
3884
            response = self._call('Branch.revision_id_to_revno',
 
3885
                self._remote_path(), revision_id)
 
3886
        except errors.UnknownSmartMethod:
 
3887
            self._ensure_real()
 
3888
            return self._real_branch.revision_id_to_revno(revision_id)
 
3889
        if response[0] == 'ok':
 
3890
            if len(response) == 2:
 
3891
                return int(response[1])
 
3892
            raise NoSuchRevision(self, revision_id)
 
3893
        else:
 
3894
            raise errors.UnexpectedSmartServerResponse(response)
2347
3895
 
2348
3896
    @needs_write_lock
2349
3897
    def set_last_revision_info(self, revno, revision_id):
2350
3898
        # XXX: These should be returned by the set_last_revision_info verb
2351
3899
        old_revno, old_revid = self.last_revision_info()
2352
3900
        self._run_pre_change_branch_tip_hooks(revno, revision_id)
2353
 
        revision_id = ensure_null(revision_id)
 
3901
        if not revision_id or not isinstance(revision_id, basestring):
 
3902
            raise errors.InvalidRevisionId(revision_id=revision_id, branch=self)
2354
3903
        try:
2355
3904
            response = self._call('Branch.set_last_revision_info',
2356
3905
                self._remote_path(), self._lock_token, self._repo_lock_token,
2385
3934
            except errors.UnknownSmartMethod:
2386
3935
                medium._remember_remote_is_before((1, 6))
2387
3936
        self._clear_cached_state_of_remote_branch_only()
2388
 
        self.set_revision_history(self._lefthand_history(revision_id,
2389
 
            last_rev=last_rev,other_branch=other_branch))
 
3937
        graph = self.repository.get_graph()
 
3938
        (last_revno, last_revid) = self.last_revision_info()
 
3939
        known_revision_ids = [
 
3940
            (last_revid, last_revno),
 
3941
            (_mod_revision.NULL_REVISION, 0),
 
3942
            ]
 
3943
        if last_rev is not None:
 
3944
            if not graph.is_ancestor(last_rev, revision_id):
 
3945
                # our previous tip is not merged into stop_revision
 
3946
                raise errors.DivergedBranches(self, other_branch)
 
3947
        revno = graph.find_distance_to_null(revision_id, known_revision_ids)
 
3948
        self.set_last_revision_info(revno, revision_id)
2390
3949
 
2391
3950
    def set_push_location(self, location):
 
3951
        self._set_config_location('push_location', location)
 
3952
 
 
3953
    def heads_to_fetch(self):
 
3954
        if self._format._use_default_local_heads_to_fetch():
 
3955
            # We recognise this format, and its heads-to-fetch implementation
 
3956
            # is the default one (tip + tags).  In this case it's cheaper to
 
3957
            # just use the default implementation rather than a special RPC as
 
3958
            # the tip and tags data is cached.
 
3959
            return branch.Branch.heads_to_fetch(self)
 
3960
        medium = self._client._medium
 
3961
        if medium._is_remote_before((2, 4)):
 
3962
            return self._vfs_heads_to_fetch()
 
3963
        try:
 
3964
            return self._rpc_heads_to_fetch()
 
3965
        except errors.UnknownSmartMethod:
 
3966
            medium._remember_remote_is_before((2, 4))
 
3967
            return self._vfs_heads_to_fetch()
 
3968
 
 
3969
    def _rpc_heads_to_fetch(self):
 
3970
        response = self._call('Branch.heads_to_fetch', self._remote_path())
 
3971
        if len(response) != 2:
 
3972
            raise errors.UnexpectedSmartServerResponse(response)
 
3973
        must_fetch, if_present_fetch = response
 
3974
        return set(must_fetch), set(if_present_fetch)
 
3975
 
 
3976
    def _vfs_heads_to_fetch(self):
2392
3977
        self._ensure_real()
2393
 
        return self._real_branch.set_push_location(location)
 
3978
        return self._real_branch.heads_to_fetch()
2394
3979
 
2395
3980
 
2396
3981
class RemoteConfig(object):
2411
3996
        """
2412
3997
        try:
2413
3998
            configobj = self._get_configobj()
 
3999
            section_obj = None
2414
4000
            if section is None:
2415
4001
                section_obj = configobj
2416
4002
            else:
2417
4003
                try:
2418
4004
                    section_obj = configobj[section]
2419
4005
                except KeyError:
2420
 
                    return default
2421
 
            return section_obj.get(name, default)
 
4006
                    pass
 
4007
            if section_obj is None:
 
4008
                value = default
 
4009
            else:
 
4010
                value = section_obj.get(name, default)
2422
4011
        except errors.UnknownSmartMethod:
2423
 
            return self._vfs_get_option(name, section, default)
 
4012
            value = self._vfs_get_option(name, section, default)
 
4013
        for hook in _mod_config.OldConfigHooks['get']:
 
4014
            hook(self, name, value)
 
4015
        return value
2424
4016
 
2425
4017
    def _response_to_configobj(self, response):
2426
4018
        if len(response[0]) and response[0][0] != 'ok':
2427
4019
            raise errors.UnexpectedSmartServerResponse(response)
2428
4020
        lines = response[1].read_body_bytes().splitlines()
2429
 
        return config.ConfigObj(lines, encoding='utf-8')
 
4021
        conf = _mod_config.ConfigObj(lines, encoding='utf-8')
 
4022
        for hook in _mod_config.OldConfigHooks['load']:
 
4023
            hook(self)
 
4024
        return conf
2430
4025
 
2431
4026
 
2432
4027
class RemoteBranchConfig(RemoteConfig):
2451
4046
        medium = self._branch._client._medium
2452
4047
        if medium._is_remote_before((1, 14)):
2453
4048
            return self._vfs_set_option(value, name, section)
 
4049
        if isinstance(value, dict):
 
4050
            if medium._is_remote_before((2, 2)):
 
4051
                return self._vfs_set_option(value, name, section)
 
4052
            return self._set_config_option_dict(value, name, section)
 
4053
        else:
 
4054
            return self._set_config_option(value, name, section)
 
4055
 
 
4056
    def _set_config_option(self, value, name, section):
2454
4057
        try:
2455
4058
            path = self._branch._remote_path()
2456
4059
            response = self._branch._client.call('Branch.set_config_option',
2457
4060
                path, self._branch._lock_token, self._branch._repo_lock_token,
2458
4061
                value.encode('utf8'), name, section or '')
2459
4062
        except errors.UnknownSmartMethod:
 
4063
            medium = self._branch._client._medium
2460
4064
            medium._remember_remote_is_before((1, 14))
2461
4065
            return self._vfs_set_option(value, name, section)
2462
4066
        if response != ():
2463
4067
            raise errors.UnexpectedSmartServerResponse(response)
2464
4068
 
 
4069
    def _serialize_option_dict(self, option_dict):
 
4070
        utf8_dict = {}
 
4071
        for key, value in option_dict.items():
 
4072
            if isinstance(key, unicode):
 
4073
                key = key.encode('utf8')
 
4074
            if isinstance(value, unicode):
 
4075
                value = value.encode('utf8')
 
4076
            utf8_dict[key] = value
 
4077
        return bencode.bencode(utf8_dict)
 
4078
 
 
4079
    def _set_config_option_dict(self, value, name, section):
 
4080
        try:
 
4081
            path = self._branch._remote_path()
 
4082
            serialised_dict = self._serialize_option_dict(value)
 
4083
            response = self._branch._client.call(
 
4084
                'Branch.set_config_option_dict',
 
4085
                path, self._branch._lock_token, self._branch._repo_lock_token,
 
4086
                serialised_dict, name, section or '')
 
4087
        except errors.UnknownSmartMethod:
 
4088
            medium = self._branch._client._medium
 
4089
            medium._remember_remote_is_before((2, 2))
 
4090
            return self._vfs_set_option(value, name, section)
 
4091
        if response != ():
 
4092
            raise errors.UnexpectedSmartServerResponse(response)
 
4093
 
2465
4094
    def _real_object(self):
2466
4095
        self._branch._ensure_real()
2467
4096
        return self._branch._real_branch
2506
4135
        return self._bzrdir._real_bzrdir
2507
4136
 
2508
4137
 
2509
 
 
2510
4138
def _extract_tar(tar, to_dir):
2511
4139
    """Extract all the contents of a tarfile object.
2512
4140
 
2516
4144
        tar.extract(tarinfo, to_dir)
2517
4145
 
2518
4146
 
 
4147
error_translators = registry.Registry()
 
4148
no_context_error_translators = registry.Registry()
 
4149
 
 
4150
 
2519
4151
def _translate_error(err, **context):
2520
4152
    """Translate an ErrorFromSmartServer into a more useful error.
2521
4153
 
2550
4182
                    'Missing key %r in context %r', key_err.args[0], context)
2551
4183
                raise err
2552
4184
 
2553
 
    if err.error_verb == 'NoSuchRevision':
2554
 
        raise NoSuchRevision(find('branch'), err.error_args[0])
2555
 
    elif err.error_verb == 'nosuchrevision':
2556
 
        raise NoSuchRevision(find('repository'), err.error_args[0])
2557
 
    elif err.error_tuple == ('nobranch',):
2558
 
        raise errors.NotBranchError(path=find('bzrdir').root_transport.base)
2559
 
    elif err.error_verb == 'norepository':
2560
 
        raise errors.NoRepositoryPresent(find('bzrdir'))
2561
 
    elif err.error_verb == 'LockContention':
2562
 
        raise errors.LockContention('(remote lock)')
2563
 
    elif err.error_verb == 'UnlockableTransport':
2564
 
        raise errors.UnlockableTransport(find('bzrdir').root_transport)
2565
 
    elif err.error_verb == 'LockFailed':
2566
 
        raise errors.LockFailed(err.error_args[0], err.error_args[1])
2567
 
    elif err.error_verb == 'TokenMismatch':
2568
 
        raise errors.TokenMismatch(find('token'), '(remote token)')
2569
 
    elif err.error_verb == 'Diverged':
2570
 
        raise errors.DivergedBranches(find('branch'), find('other_branch'))
2571
 
    elif err.error_verb == 'TipChangeRejected':
2572
 
        raise errors.TipChangeRejected(err.error_args[0].decode('utf8'))
2573
 
    elif err.error_verb == 'UnstackableBranchFormat':
2574
 
        raise errors.UnstackableBranchFormat(*err.error_args)
2575
 
    elif err.error_verb == 'UnstackableRepositoryFormat':
2576
 
        raise errors.UnstackableRepositoryFormat(*err.error_args)
2577
 
    elif err.error_verb == 'NotStacked':
2578
 
        raise errors.NotStacked(branch=find('branch'))
2579
 
    elif err.error_verb == 'PermissionDenied':
2580
 
        path = get_path()
2581
 
        if len(err.error_args) >= 2:
2582
 
            extra = err.error_args[1]
2583
 
        else:
2584
 
            extra = None
2585
 
        raise errors.PermissionDenied(path, extra=extra)
2586
 
    elif err.error_verb == 'ReadError':
2587
 
        path = get_path()
2588
 
        raise errors.ReadError(path)
2589
 
    elif err.error_verb == 'NoSuchFile':
2590
 
        path = get_path()
2591
 
        raise errors.NoSuchFile(path)
2592
 
    elif err.error_verb == 'FileExists':
2593
 
        raise errors.FileExists(err.error_args[0])
2594
 
    elif err.error_verb == 'DirectoryNotEmpty':
2595
 
        raise errors.DirectoryNotEmpty(err.error_args[0])
2596
 
    elif err.error_verb == 'ShortReadvError':
2597
 
        args = err.error_args
2598
 
        raise errors.ShortReadvError(
2599
 
            args[0], int(args[1]), int(args[2]), int(args[3]))
2600
 
    elif err.error_verb in ('UnicodeEncodeError', 'UnicodeDecodeError'):
 
4185
    try:
 
4186
        translator = error_translators.get(err.error_verb)
 
4187
    except KeyError:
 
4188
        pass
 
4189
    else:
 
4190
        raise translator(err, find, get_path)
 
4191
    try:
 
4192
        translator = no_context_error_translators.get(err.error_verb)
 
4193
    except KeyError:
 
4194
        raise errors.UnknownErrorFromSmartServer(err)
 
4195
    else:
 
4196
        raise translator(err)
 
4197
 
 
4198
 
 
4199
error_translators.register('NoSuchRevision',
 
4200
    lambda err, find, get_path: NoSuchRevision(
 
4201
        find('branch'), err.error_args[0]))
 
4202
error_translators.register('nosuchrevision',
 
4203
    lambda err, find, get_path: NoSuchRevision(
 
4204
        find('repository'), err.error_args[0]))
 
4205
 
 
4206
def _translate_nobranch_error(err, find, get_path):
 
4207
    if len(err.error_args) >= 1:
 
4208
        extra = err.error_args[0]
 
4209
    else:
 
4210
        extra = None
 
4211
    return errors.NotBranchError(path=find('bzrdir').root_transport.base,
 
4212
        detail=extra)
 
4213
 
 
4214
error_translators.register('nobranch', _translate_nobranch_error)
 
4215
error_translators.register('norepository',
 
4216
    lambda err, find, get_path: errors.NoRepositoryPresent(
 
4217
        find('bzrdir')))
 
4218
error_translators.register('UnlockableTransport',
 
4219
    lambda err, find, get_path: errors.UnlockableTransport(
 
4220
        find('bzrdir').root_transport))
 
4221
error_translators.register('TokenMismatch',
 
4222
    lambda err, find, get_path: errors.TokenMismatch(
 
4223
        find('token'), '(remote token)'))
 
4224
error_translators.register('Diverged',
 
4225
    lambda err, find, get_path: errors.DivergedBranches(
 
4226
        find('branch'), find('other_branch')))
 
4227
error_translators.register('NotStacked',
 
4228
    lambda err, find, get_path: errors.NotStacked(branch=find('branch')))
 
4229
 
 
4230
def _translate_PermissionDenied(err, find, get_path):
 
4231
    path = get_path()
 
4232
    if len(err.error_args) >= 2:
 
4233
        extra = err.error_args[1]
 
4234
    else:
 
4235
        extra = None
 
4236
    return errors.PermissionDenied(path, extra=extra)
 
4237
 
 
4238
error_translators.register('PermissionDenied', _translate_PermissionDenied)
 
4239
error_translators.register('ReadError',
 
4240
    lambda err, find, get_path: errors.ReadError(get_path()))
 
4241
error_translators.register('NoSuchFile',
 
4242
    lambda err, find, get_path: errors.NoSuchFile(get_path()))
 
4243
error_translators.register('TokenLockingNotSupported',
 
4244
    lambda err, find, get_path: errors.TokenLockingNotSupported(
 
4245
        find('repository')))
 
4246
error_translators.register('UnsuspendableWriteGroup',
 
4247
    lambda err, find, get_path: errors.UnsuspendableWriteGroup(
 
4248
        repository=find('repository')))
 
4249
error_translators.register('UnresumableWriteGroup',
 
4250
    lambda err, find, get_path: errors.UnresumableWriteGroup(
 
4251
        repository=find('repository'), write_groups=err.error_args[0],
 
4252
        reason=err.error_args[1]))
 
4253
no_context_error_translators.register('IncompatibleRepositories',
 
4254
    lambda err: errors.IncompatibleRepositories(
 
4255
        err.error_args[0], err.error_args[1], err.error_args[2]))
 
4256
no_context_error_translators.register('LockContention',
 
4257
    lambda err: errors.LockContention('(remote lock)'))
 
4258
no_context_error_translators.register('LockFailed',
 
4259
    lambda err: errors.LockFailed(err.error_args[0], err.error_args[1]))
 
4260
no_context_error_translators.register('TipChangeRejected',
 
4261
    lambda err: errors.TipChangeRejected(err.error_args[0].decode('utf8')))
 
4262
no_context_error_translators.register('UnstackableBranchFormat',
 
4263
    lambda err: errors.UnstackableBranchFormat(*err.error_args))
 
4264
no_context_error_translators.register('UnstackableRepositoryFormat',
 
4265
    lambda err: errors.UnstackableRepositoryFormat(*err.error_args))
 
4266
no_context_error_translators.register('FileExists',
 
4267
    lambda err: errors.FileExists(err.error_args[0]))
 
4268
no_context_error_translators.register('DirectoryNotEmpty',
 
4269
    lambda err: errors.DirectoryNotEmpty(err.error_args[0]))
 
4270
 
 
4271
def _translate_short_readv_error(err):
 
4272
    args = err.error_args
 
4273
    return errors.ShortReadvError(args[0], int(args[1]), int(args[2]),
 
4274
        int(args[3]))
 
4275
 
 
4276
no_context_error_translators.register('ShortReadvError',
 
4277
    _translate_short_readv_error)
 
4278
 
 
4279
def _translate_unicode_error(err):
2601
4280
        encoding = str(err.error_args[0]) # encoding must always be a string
2602
4281
        val = err.error_args[1]
2603
4282
        start = int(err.error_args[2])
2611
4290
            raise UnicodeDecodeError(encoding, val, start, end, reason)
2612
4291
        elif err.error_verb == 'UnicodeEncodeError':
2613
4292
            raise UnicodeEncodeError(encoding, val, start, end, reason)
2614
 
    elif err.error_verb == 'ReadOnlyError':
2615
 
        raise errors.TransportNotPossible('readonly transport')
2616
 
    raise errors.UnknownErrorFromSmartServer(err)
 
4293
 
 
4294
no_context_error_translators.register('UnicodeEncodeError',
 
4295
    _translate_unicode_error)
 
4296
no_context_error_translators.register('UnicodeDecodeError',
 
4297
    _translate_unicode_error)
 
4298
no_context_error_translators.register('ReadOnlyError',
 
4299
    lambda err: errors.TransportNotPossible('readonly transport'))
 
4300
no_context_error_translators.register('MemoryError',
 
4301
    lambda err: errors.BzrError("remote server out of memory\n"
 
4302
        "Retry non-remotely, or contact the server admin for details."))
 
4303
no_context_error_translators.register('RevisionNotPresent',
 
4304
    lambda err: errors.RevisionNotPresent(err.error_args[0], err.error_args[1]))
 
4305
 
 
4306
no_context_error_translators.register('BzrCheckError',
 
4307
    lambda err: errors.BzrCheckError(msg=err.error_args[0]))
 
4308