13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
# TODO: At some point, handle upgrades by just passing the whole request
18
# across to run on the server.
21
from cStringIO import StringIO
19
23
from bzrlib import (
30
repository as _mod_repository,
32
revision as _mod_revision,
36
from bzrlib.branch import BranchReferenceFormat, BranchWriteLockResult
33
from bzrlib.branch import BranchReferenceFormat
37
34
from bzrlib.bzrdir import BzrDir, RemoteBzrDirFormat
38
from bzrlib.decorators import needs_read_lock, needs_write_lock, only_raises
35
from bzrlib.config import BranchConfig, TreeConfig
36
from bzrlib.decorators import needs_read_lock, needs_write_lock
39
37
from bzrlib.errors import (
41
39
SmartProtocolError,
43
41
from bzrlib.lockable_files import LockableFiles
44
from bzrlib.smart import client, vfs, repository as smart_repo
42
from bzrlib.pack import ContainerPushParser
43
from bzrlib.smart import client, vfs
44
from bzrlib.symbol_versioning import (
45
48
from bzrlib.revision import ensure_null, NULL_REVISION
46
from bzrlib.repository import RepositoryWriteLockResult
47
49
from bzrlib.trace import mutter, note, warning
50
class _RpcHelper(object):
51
"""Mixin class that helps with issuing RPCs."""
53
def _call(self, method, *args, **err_context):
55
return self._client.call(method, *args)
56
except errors.ErrorFromSmartServer, err:
57
self._translate_error(err, **err_context)
59
def _call_expecting_body(self, method, *args, **err_context):
61
return self._client.call_expecting_body(method, *args)
62
except errors.ErrorFromSmartServer, err:
63
self._translate_error(err, **err_context)
65
def _call_with_body_bytes(self, method, args, body_bytes, **err_context):
67
return self._client.call_with_body_bytes(method, args, body_bytes)
68
except errors.ErrorFromSmartServer, err:
69
self._translate_error(err, **err_context)
71
def _call_with_body_bytes_expecting_body(self, method, args, body_bytes,
74
return self._client.call_with_body_bytes_expecting_body(
75
method, args, body_bytes)
76
except errors.ErrorFromSmartServer, err:
77
self._translate_error(err, **err_context)
80
def response_tuple_to_repo_format(response):
81
"""Convert a response tuple describing a repository format to a format."""
82
format = RemoteRepositoryFormat()
83
format._rich_root_data = (response[0] == 'yes')
84
format._supports_tree_reference = (response[1] == 'yes')
85
format._supports_external_lookups = (response[2] == 'yes')
86
format._network_name = response[3]
90
52
# Note: RemoteBzrDirFormat is in bzrdir.py
92
class RemoteBzrDir(BzrDir, _RpcHelper):
54
class RemoteBzrDir(BzrDir):
93
55
"""Control directory on a remote server, accessed via bzr:// or similar."""
95
def __init__(self, transport, format, _client=None, _force_probe=False):
57
def __init__(self, transport, _client=None):
96
58
"""Construct a RemoteBzrDir.
98
60
:param _client: Private parameter for testing. Disables probing and the
99
61
use of a real bzrdir.
101
BzrDir.__init__(self, transport, format)
63
BzrDir.__init__(self, transport, RemoteBzrDirFormat())
102
64
# this object holds a delegated bzrdir that uses file-level operations
103
65
# to talk to the other side
104
66
self._real_bzrdir = None
105
self._has_working_tree = None
106
# 1-shot cache for the call pattern 'create_branch; open_branch' - see
107
# create_branch for details.
108
self._next_open_branch_result = None
110
68
if _client is None:
111
69
medium = transport.get_smart_medium()
112
70
self._client = client._SmartClient(medium)
114
72
self._client = _client
121
return '%s(%r)' % (self.__class__.__name__, self._client)
123
def _probe_bzrdir(self):
124
medium = self._client._medium
125
75
path = self._path_for_remote_call(self._client)
126
if medium._is_remote_before((2, 1)):
130
self._rpc_open_2_1(path)
132
except errors.UnknownSmartMethod:
133
medium._remember_remote_is_before((2, 1))
136
def _rpc_open_2_1(self, path):
137
response = self._call('BzrDir.open_2.1', path)
138
if response == ('no',):
139
raise errors.NotBranchError(path=self.root_transport.base)
140
elif response[0] == 'yes':
141
if response[1] == 'yes':
142
self._has_working_tree = True
143
elif response[1] == 'no':
144
self._has_working_tree = False
146
raise errors.UnexpectedSmartServerResponse(response)
148
raise errors.UnexpectedSmartServerResponse(response)
150
def _rpc_open(self, path):
151
response = self._call('BzrDir.open', path)
76
response = self._client.call('BzrDir.open', path)
152
77
if response not in [('yes',), ('no',)]:
153
78
raise errors.UnexpectedSmartServerResponse(response)
154
79
if response == ('no',):
155
raise errors.NotBranchError(path=self.root_transport.base)
80
raise errors.NotBranchError(path=transport.base)
157
82
def _ensure_real(self):
158
83
"""Ensure that there is a _real_bzrdir set.
160
85
Used before calls to self._real_bzrdir.
162
87
if not self._real_bzrdir:
163
if 'hpssvfs' in debug.debug_flags:
165
warning('VFS BzrDir access triggered\n%s',
166
''.join(traceback.format_stack()))
167
88
self._real_bzrdir = BzrDir.open_from_transport(
168
89
self.root_transport, _server_formats=False)
169
self._format._network_name = \
170
self._real_bzrdir._format.network_name()
172
def _translate_error(self, err, **context):
173
_translate_error(err, bzrdir=self, **context)
175
def break_lock(self):
176
# Prevent aliasing problems in the next_open_branch_result cache.
177
# See create_branch for rationale.
178
self._next_open_branch_result = None
179
return BzrDir.break_lock(self)
181
def _vfs_cloning_metadir(self, require_stacking=False):
91
def cloning_metadir(self):
182
92
self._ensure_real()
183
return self._real_bzrdir.cloning_metadir(
184
require_stacking=require_stacking)
186
def cloning_metadir(self, require_stacking=False):
187
medium = self._client._medium
188
if medium._is_remote_before((1, 13)):
189
return self._vfs_cloning_metadir(require_stacking=require_stacking)
190
verb = 'BzrDir.cloning_metadir'
195
path = self._path_for_remote_call(self._client)
197
response = self._call(verb, path, stacking)
198
except errors.UnknownSmartMethod:
199
medium._remember_remote_is_before((1, 13))
200
return self._vfs_cloning_metadir(require_stacking=require_stacking)
201
except errors.UnknownErrorFromSmartServer, err:
202
if err.error_tuple != ('BranchReference',):
204
# We need to resolve the branch reference to determine the
205
# cloning_metadir. This causes unnecessary RPCs to open the
206
# referenced branch (and bzrdir, etc) but only when the caller
207
# didn't already resolve the branch reference.
208
referenced_branch = self.open_branch()
209
return referenced_branch.bzrdir.cloning_metadir()
210
if len(response) != 3:
211
raise errors.UnexpectedSmartServerResponse(response)
212
control_name, repo_name, branch_info = response
213
if len(branch_info) != 2:
214
raise errors.UnexpectedSmartServerResponse(response)
215
branch_ref, branch_name = branch_info
216
format = bzrdir.network_format_registry.get(control_name)
218
format.repository_format = repository.network_format_registry.get(
220
if branch_ref == 'ref':
221
# XXX: we need possible_transports here to avoid reopening the
222
# connection to the referenced location
223
ref_bzrdir = BzrDir.open(branch_name)
224
branch_format = ref_bzrdir.cloning_metadir().get_branch_format()
225
format.set_branch_format(branch_format)
226
elif branch_ref == 'branch':
228
format.set_branch_format(
229
branch.network_format_registry.get(branch_name))
231
raise errors.UnexpectedSmartServerResponse(response)
93
return self._real_bzrdir.cloning_metadir()
234
95
def create_repository(self, shared=False):
235
# as per meta1 formats - just delegate to the format object which may
237
result = self._format.repository_format.initialize(self, shared)
238
if not isinstance(result, RemoteRepository):
239
return self.open_repository()
97
self._real_bzrdir.create_repository(shared=shared)
98
return self.open_repository()
243
100
def destroy_repository(self):
244
101
"""See BzrDir.destroy_repository"""
245
102
self._ensure_real()
246
103
self._real_bzrdir.destroy_repository()
248
def create_branch(self, name=None):
249
# as per meta1 formats - just delegate to the format object which may
251
real_branch = self._format.get_branch_format().initialize(self,
253
if not isinstance(real_branch, RemoteBranch):
254
result = RemoteBranch(self, self.find_repository(), real_branch,
258
# BzrDir.clone_on_transport() uses the result of create_branch but does
259
# not return it to its callers; we save approximately 8% of our round
260
# trips by handing the branch we created back to the first caller to
261
# open_branch rather than probing anew. Long term we need a API in
262
# bzrdir that doesn't discard result objects (like result_branch).
264
self._next_open_branch_result = result
105
def create_branch(self):
107
real_branch = self._real_bzrdir.create_branch()
108
return RemoteBranch(self, self.find_repository(), real_branch)
267
def destroy_branch(self, name=None):
110
def destroy_branch(self):
268
111
"""See BzrDir.destroy_branch"""
269
112
self._ensure_real()
270
self._real_bzrdir.destroy_branch(name=name)
271
self._next_open_branch_result = None
113
self._real_bzrdir.destroy_branch()
273
115
def create_workingtree(self, revision_id=None, from_branch=None):
274
116
raise errors.NotLocalUrl(self.transport.base)
284
126
def get_branch_reference(self):
285
127
"""See BzrDir.get_branch_reference()."""
286
response = self._get_branch_reference()
287
if response[0] == 'ref':
128
path = self._path_for_remote_call(self._client)
130
response = self._client.call('BzrDir.open_branch', path)
131
except errors.ErrorFromSmartServer, err:
132
if err.error_tuple == ('nobranch',):
133
raise errors.NotBranchError(path=self.root_transport.base)
135
if response[0] == 'ok':
136
if response[1] == '':
137
# branch at this location.
140
# a branch reference, use the existing BranchReference logic.
292
def _get_branch_reference(self):
293
path = self._path_for_remote_call(self._client)
294
medium = self._client._medium
296
('BzrDir.open_branchV3', (2, 1)),
297
('BzrDir.open_branchV2', (1, 13)),
298
('BzrDir.open_branch', None),
300
for verb, required_version in candidate_calls:
301
if required_version and medium._is_remote_before(required_version):
304
response = self._call(verb, path)
305
except errors.UnknownSmartMethod:
306
if required_version is None:
308
medium._remember_remote_is_before(required_version)
311
if verb == 'BzrDir.open_branch':
312
if response[0] != 'ok':
313
raise errors.UnexpectedSmartServerResponse(response)
314
if response[1] != '':
315
return ('ref', response[1])
317
return ('branch', '')
318
if response[0] not in ('ref', 'branch'):
319
143
raise errors.UnexpectedSmartServerResponse(response)
322
145
def _get_tree_branch(self):
323
146
"""See BzrDir._get_tree_branch()."""
324
147
return None, self.open_branch()
326
def open_branch(self, name=None, unsupported=False,
327
ignore_fallbacks=False):
149
def open_branch(self, _unsupported=False):
329
151
raise NotImplementedError('unsupported flag support not implemented yet.')
330
if self._next_open_branch_result is not None:
331
# See create_branch for details.
332
result = self._next_open_branch_result
333
self._next_open_branch_result = None
335
response = self._get_branch_reference()
336
if response[0] == 'ref':
152
reference_url = self.get_branch_reference()
153
if reference_url is None:
154
# branch at this location.
155
return RemoteBranch(self, self.find_repository())
337
157
# a branch reference, use the existing BranchReference logic.
338
158
format = BranchReferenceFormat()
339
return format.open(self, name=name, _found=True,
340
location=response[1], ignore_fallbacks=ignore_fallbacks)
341
branch_format_name = response[1]
342
if not branch_format_name:
343
branch_format_name = None
344
format = RemoteBranchFormat(network_name=branch_format_name)
345
return RemoteBranch(self, self.find_repository(), format=format,
346
setup_stacking=not ignore_fallbacks, name=name)
348
def _open_repo_v1(self, path):
349
verb = 'BzrDir.find_repository'
350
response = self._call(verb, path)
351
if response[0] != 'ok':
352
raise errors.UnexpectedSmartServerResponse(response)
353
# servers that only support the v1 method don't support external
356
repo = self._real_bzrdir.open_repository()
357
response = response + ('no', repo._format.network_name())
358
return response, repo
360
def _open_repo_v2(self, path):
159
return format.open(self, _found=True, location=reference_url)
161
def open_repository(self):
162
path = self._path_for_remote_call(self._client)
361
163
verb = 'BzrDir.find_repositoryV2'
362
response = self._call(verb, path)
363
if response[0] != 'ok':
364
raise errors.UnexpectedSmartServerResponse(response)
366
repo = self._real_bzrdir.open_repository()
367
response = response + (repo._format.network_name(),)
368
return response, repo
370
def _open_repo_v3(self, path):
371
verb = 'BzrDir.find_repositoryV3'
372
medium = self._client._medium
373
if medium._is_remote_before((1, 13)):
374
raise errors.UnknownSmartMethod(verb)
376
response = self._call(verb, path)
377
except errors.UnknownSmartMethod:
378
medium._remember_remote_is_before((1, 13))
380
if response[0] != 'ok':
381
raise errors.UnexpectedSmartServerResponse(response)
382
return response, None
384
def open_repository(self):
385
path = self._path_for_remote_call(self._client)
387
for probe in [self._open_repo_v3, self._open_repo_v2,
390
response, real_repo = probe(path)
166
response = self._client.call(verb, path)
392
167
except errors.UnknownSmartMethod:
395
raise errors.UnknownSmartMethod('BzrDir.find_repository{3,2,}')
168
verb = 'BzrDir.find_repository'
169
response = self._client.call(verb, path)
170
except errors.ErrorFromSmartServer, err:
171
if err.error_verb == 'norepository':
172
raise errors.NoRepositoryPresent(self)
396
174
if response[0] != 'ok':
397
175
raise errors.UnexpectedSmartServerResponse(response)
398
if len(response) != 6:
176
if verb == 'BzrDir.find_repository':
177
# servers that don't support the V2 method don't support external
179
response = response + ('no', )
180
if not (len(response) == 5):
399
181
raise SmartProtocolError('incorrect response length %s' % (response,))
400
182
if response[1] == '':
401
# repo is at this dir.
402
format = response_tuple_to_repo_format(response[2:])
183
format = RemoteRepositoryFormat()
184
format.rich_root_data = (response[2] == 'yes')
185
format.supports_tree_reference = (response[3] == 'yes')
186
# No wire format to check this yet.
187
format.supports_external_lookups = (response[4] == 'yes')
403
188
# Used to support creating a real format instance when needed.
404
189
format._creating_bzrdir = self
405
remote_repo = RemoteRepository(self, format)
406
format._creating_repo = remote_repo
407
if real_repo is not None:
408
remote_repo._set_real_repository(real_repo)
190
return RemoteRepository(self, format)
411
192
raise errors.NoRepositoryPresent(self)
413
def has_workingtree(self):
414
if self._has_working_tree is None:
416
self._has_working_tree = self._real_bzrdir.has_workingtree()
417
return self._has_working_tree
419
194
def open_workingtree(self, recommend_upgrade=True):
420
if self.has_workingtree():
196
if self._real_bzrdir.has_workingtree():
421
197
raise errors.NotLocalUrl(self.root_transport)
423
199
raise errors.NoWorkingTree(self.root_transport.base)
470
240
the attributes rich_root_data and supports_tree_reference are set
471
241
on a per instance basis, and are not set (and should not be) at
474
:ivar _custom_format: If set, a specific concrete repository format that
475
will be used when initializing a repository with this
476
RemoteRepositoryFormat.
477
:ivar _creating_repo: If set, the repository object that this
478
RemoteRepositoryFormat was created for: it can be called into
479
to obtain data like the network name.
482
245
_matchingbzrdir = RemoteBzrDirFormat()
485
repository.RepositoryFormat.__init__(self)
486
self._custom_format = None
487
self._network_name = None
488
self._creating_bzrdir = None
489
self._supports_chks = None
490
self._supports_external_lookups = None
491
self._supports_tree_reference = None
492
self._rich_root_data = None
495
return "%s(_network_name=%r)" % (self.__class__.__name__,
499
def fast_deltas(self):
501
return self._custom_format.fast_deltas
504
def rich_root_data(self):
505
if self._rich_root_data is None:
507
self._rich_root_data = self._custom_format.rich_root_data
508
return self._rich_root_data
511
def supports_chks(self):
512
if self._supports_chks is None:
514
self._supports_chks = self._custom_format.supports_chks
515
return self._supports_chks
518
def supports_external_lookups(self):
519
if self._supports_external_lookups is None:
521
self._supports_external_lookups = \
522
self._custom_format.supports_external_lookups
523
return self._supports_external_lookups
526
def supports_tree_reference(self):
527
if self._supports_tree_reference is None:
529
self._supports_tree_reference = \
530
self._custom_format.supports_tree_reference
531
return self._supports_tree_reference
533
def _vfs_initialize(self, a_bzrdir, shared):
534
"""Helper for common code in initialize."""
535
if self._custom_format:
536
# Custom format requested
537
result = self._custom_format.initialize(a_bzrdir, shared=shared)
538
elif self._creating_bzrdir is not None:
539
# Use the format that the repository we were created to back
247
def initialize(self, a_bzrdir, shared=False):
248
if not isinstance(a_bzrdir, RemoteBzrDir):
541
249
prior_repo = self._creating_bzrdir.open_repository()
542
250
prior_repo._ensure_real()
543
result = prior_repo._real_repository._format.initialize(
251
return prior_repo._real_repository._format.initialize(
544
252
a_bzrdir, shared=shared)
546
# assume that a_bzr is a RemoteBzrDir but the smart server didn't
547
# support remote initialization.
548
# We delegate to a real object at this point (as RemoteBzrDir
549
# delegate to the repository format which would lead to infinite
550
# recursion if we just called a_bzrdir.create_repository.
551
a_bzrdir._ensure_real()
552
result = a_bzrdir._real_bzrdir.create_repository(shared=shared)
553
if not isinstance(result, RemoteRepository):
554
return self.open(a_bzrdir)
558
def initialize(self, a_bzrdir, shared=False):
559
# Being asked to create on a non RemoteBzrDir:
560
if not isinstance(a_bzrdir, RemoteBzrDir):
561
return self._vfs_initialize(a_bzrdir, shared)
562
medium = a_bzrdir._client._medium
563
if medium._is_remote_before((1, 13)):
564
return self._vfs_initialize(a_bzrdir, shared)
565
# Creating on a remote bzr dir.
566
# 1) get the network name to use.
567
if self._custom_format:
568
network_name = self._custom_format.network_name()
569
elif self._network_name:
570
network_name = self._network_name
572
# Select the current bzrlib default and ask for that.
573
reference_bzrdir_format = bzrdir.format_registry.get('default')()
574
reference_format = reference_bzrdir_format.repository_format
575
network_name = reference_format.network_name()
576
# 2) try direct creation via RPC
577
path = a_bzrdir._path_for_remote_call(a_bzrdir._client)
578
verb = 'BzrDir.create_repository'
584
response = a_bzrdir._call(verb, path, network_name, shared_str)
585
except errors.UnknownSmartMethod:
586
# Fallback - use vfs methods
587
medium._remember_remote_is_before((1, 13))
588
return self._vfs_initialize(a_bzrdir, shared)
590
# Turn the response into a RemoteRepository object.
591
format = response_tuple_to_repo_format(response[1:])
592
# Used to support creating a real format instance when needed.
593
format._creating_bzrdir = a_bzrdir
594
remote_repo = RemoteRepository(a_bzrdir, format)
595
format._creating_repo = remote_repo
253
return a_bzrdir.create_repository(shared=shared)
598
255
def open(self, a_bzrdir):
599
256
if not isinstance(a_bzrdir, RemoteBzrDir):
600
257
raise AssertionError('%r is not a RemoteBzrDir' % (a_bzrdir,))
601
258
return a_bzrdir.open_repository()
603
def _ensure_real(self):
604
if self._custom_format is None:
605
self._custom_format = repository.network_format_registry.get(
609
def _fetch_order(self):
611
return self._custom_format._fetch_order
614
def _fetch_uses_deltas(self):
616
return self._custom_format._fetch_uses_deltas
619
def _fetch_reconcile(self):
621
return self._custom_format._fetch_reconcile
623
260
def get_format_description(self):
625
return 'Remote: ' + self._custom_format.get_format_description()
261
return 'bzr remote repository'
627
263
def __eq__(self, other):
628
return self.__class__ is other.__class__
630
def network_name(self):
631
if self._network_name:
632
return self._network_name
633
self._creating_repo._ensure_real()
634
return self._creating_repo._real_repository._format.network_name()
637
def pack_compresses(self):
639
return self._custom_format.pack_compresses
642
def _serializer(self):
644
return self._custom_format._serializer
647
class RemoteRepository(_RpcHelper, lock._RelockDebugMixin,
648
bzrdir.ControlComponent):
264
return self.__class__ == other.__class__
266
def check_conversion_target(self, target_format):
267
if self.rich_root_data and not target_format.rich_root_data:
268
raise errors.BadConversionTarget(
269
'Does not support rich root data.', target_format)
270
if (self.supports_tree_reference and
271
not getattr(target_format, 'supports_tree_reference', False)):
272
raise errors.BadConversionTarget(
273
'Does not support nested trees', target_format)
276
class RemoteRepository(object):
649
277
"""Repository accessed over rpc.
651
279
For the moment most operations are performed using local transport-backed
745
348
self._ensure_real()
746
349
return self._real_repository.commit_write_group()
748
def resume_write_group(self, tokens):
750
return self._real_repository.resume_write_group(tokens)
752
def suspend_write_group(self):
754
return self._real_repository.suspend_write_group()
756
def get_missing_parent_inventories(self, check_for_missing_texts=True):
758
return self._real_repository.get_missing_parent_inventories(
759
check_for_missing_texts=check_for_missing_texts)
761
def _get_rev_id_for_revno_vfs(self, revno, known_pair):
763
return self._real_repository.get_rev_id_for_revno(
766
def get_rev_id_for_revno(self, revno, known_pair):
767
"""See Repository.get_rev_id_for_revno."""
768
path = self.bzrdir._path_for_remote_call(self._client)
770
if self._client._medium._is_remote_before((1, 17)):
771
return self._get_rev_id_for_revno_vfs(revno, known_pair)
772
response = self._call(
773
'Repository.get_rev_id_for_revno', path, revno, known_pair)
774
except errors.UnknownSmartMethod:
775
self._client._medium._remember_remote_is_before((1, 17))
776
return self._get_rev_id_for_revno_vfs(revno, known_pair)
777
if response[0] == 'ok':
778
return True, response[1]
779
elif response[0] == 'history-incomplete':
780
known_pair = response[1:3]
781
for fallback in self._fallback_repositories:
782
found, result = fallback.get_rev_id_for_revno(revno, known_pair)
787
# Not found in any fallbacks
788
return False, known_pair
790
raise errors.UnexpectedSmartServerResponse(response)
792
351
def _ensure_real(self):
793
352
"""Ensure that there is a _real_repository set.
795
354
Used before calls to self._real_repository.
797
Note that _ensure_real causes many roundtrips to the server which are
798
not desirable, and prevents the use of smart one-roundtrip RPC's to
799
perform complex operations (such as accessing parent data, streaming
800
revisions etc). Adding calls to _ensure_real should only be done when
801
bringing up new functionality, adding fallbacks for smart methods that
802
require a fallback path, and never to replace an existing smart method
803
invocation. If in doubt chat to the bzr network team.
805
if self._real_repository is None:
806
if 'hpssvfs' in debug.debug_flags:
808
warning('VFS Repository access triggered\n%s',
809
''.join(traceback.format_stack()))
810
self._unstacked_provider.missing_keys.clear()
356
if not self._real_repository:
811
357
self.bzrdir._ensure_real()
812
self._set_real_repository(
813
self.bzrdir._real_bzrdir.open_repository())
815
def _translate_error(self, err, **context):
816
self.bzrdir._translate_error(err, repository=self, **context)
358
#self._real_repository = self.bzrdir._real_bzrdir.open_repository()
359
self._set_real_repository(self.bzrdir._real_bzrdir.open_repository())
818
361
def find_text_key_references(self):
819
362
"""Find the text key references within the repository.
862
415
for line in lines:
863
416
d = tuple(line.split())
864
417
revision_graph[d[0]] = d[1:]
866
419
return revision_graph
869
"""See Repository._get_sink()."""
870
return RemoteStreamSink(self)
872
def _get_source(self, to_format):
873
"""Return a source for streaming from this repository."""
874
return RemoteStreamSource(self, to_format)
877
421
def has_revision(self, revision_id):
878
"""True if this repository has a copy of the revision."""
879
# Copy of bzrlib.repository.Repository.has_revision
880
return revision_id in self.has_revisions((revision_id,))
422
"""See Repository.has_revision()."""
423
if revision_id == NULL_REVISION:
424
# The null revision is always present.
426
path = self.bzrdir._path_for_remote_call(self._client)
427
response = self._client.call(
428
'Repository.has_revision', path, revision_id)
429
if response[0] not in ('yes', 'no'):
430
raise errors.UnexpectedSmartServerResponse(response)
431
return response[0] == 'yes'
883
433
def has_revisions(self, revision_ids):
884
"""Probe to find out the presence of multiple revisions.
886
:param revision_ids: An iterable of revision_ids.
887
:return: A set of the revision_ids that were present.
889
# Copy of bzrlib.repository.Repository.has_revisions
890
parent_map = self.get_parent_map(revision_ids)
891
result = set(parent_map)
892
if _mod_revision.NULL_REVISION in revision_ids:
893
result.add(_mod_revision.NULL_REVISION)
434
"""See Repository.has_revisions()."""
436
for revision_id in revision_ids:
437
if self.has_revision(revision_id):
438
result.add(revision_id)
896
def _has_same_fallbacks(self, other_repo):
897
"""Returns true if the repositories have the same fallbacks."""
898
# XXX: copied from Repository; it should be unified into a base class
899
# <https://bugs.edge.launchpad.net/bzr/+bug/401622>
900
my_fb = self._fallback_repositories
901
other_fb = other_repo._fallback_repositories
902
if len(my_fb) != len(other_fb):
904
for f, g in zip(my_fb, other_fb):
905
if not f.has_same_location(g):
909
441
def has_same_location(self, other):
910
# TODO: Move to RepositoryBase and unify with the regular Repository
911
# one; unfortunately the tests rely on slightly different behaviour at
912
# present -- mbp 20090710
913
return (self.__class__ is other.__class__ and
442
return (self.__class__ == other.__class__ and
914
443
self.bzrdir.transport.base == other.bzrdir.transport.base)
916
445
def get_graph(self, other_repository=None):
917
446
"""Return the graph for this repository format"""
918
parents_provider = self._make_parents_provider(other_repository)
447
parents_provider = self
448
if (other_repository is not None and
449
other_repository.bzrdir.transport.base !=
450
self.bzrdir.transport.base):
451
parents_provider = graph._StackedParentsProvider(
452
[parents_provider, other_repository._make_parents_provider()])
919
453
return graph.Graph(parents_provider)
922
def get_known_graph_ancestry(self, revision_ids):
923
"""Return the known graph for a set of revision ids and their ancestors.
925
st = static_tuple.StaticTuple
926
revision_keys = [st(r_id).intern() for r_id in revision_ids]
927
known_graph = self.revisions.get_known_graph_ancestry(revision_keys)
928
return graph.GraphThunkIdsToKeys(known_graph)
930
455
def gather_stats(self, revid=None, committers=None):
931
456
"""See Repository.gather_stats()."""
932
457
path = self.bzrdir._path_for_remote_call(self._client)
992
517
def is_write_locked(self):
993
518
return self._lock_mode == 'w'
995
def _warn_if_deprecated(self, branch=None):
996
# If we have a real repository, the check will be done there, if we
997
# don't the check will be done remotely.
1000
520
def lock_read(self):
1001
"""Lock the repository for read operations.
1003
:return: An object with an unlock method which will release the lock
1006
521
# wrong eventually - want a local lock cache context
1007
522
if not self._lock_mode:
1008
self._note_lock('r')
1009
523
self._lock_mode = 'r'
1010
524
self._lock_count = 1
1011
self._unstacked_provider.enable_cache(cache_misses=True)
525
self._parents_map = {}
526
if 'hpss' in debug.debug_flags:
527
self._requested_parents = set()
1012
528
if self._real_repository is not None:
1013
529
self._real_repository.lock_read()
1014
for repo in self._fallback_repositories:
1017
531
self._lock_count += 1
1020
533
def _remote_lock_write(self, token):
1021
534
path = self.bzrdir._path_for_remote_call(self._client)
1022
535
if token is None:
1024
err_context = {'token': token}
1025
response = self._call('Repository.lock_write', path, token,
538
response = self._client.call('Repository.lock_write', path, token)
539
except errors.ErrorFromSmartServer, err:
540
if err.error_verb == 'LockContention':
541
raise errors.LockContention('(remote lock)')
542
elif err.error_verb == 'UnlockableTransport':
543
raise errors.UnlockableTransport(self.bzrdir.root_transport)
544
elif err.error_verb == 'LockFailed':
545
raise errors.LockFailed(err.error_args[0], err.error_args[1])
1027
548
if response[0] == 'ok':
1028
549
ok, token = response
1031
552
raise errors.UnexpectedSmartServerResponse(response)
1033
def lock_write(self, token=None, _skip_rpc=False):
554
def lock_write(self, token=None):
1034
555
if not self._lock_mode:
1035
self._note_lock('w')
1037
if self._lock_token is not None:
1038
if token != self._lock_token:
1039
raise errors.TokenMismatch(token, self._lock_token)
1040
self._lock_token = token
1042
self._lock_token = self._remote_lock_write(token)
556
self._lock_token = self._remote_lock_write(token)
1043
557
# if self._lock_token is None, then this is something like packs or
1044
558
# svn where we don't get to lock the repo, or a weave style repository
1045
559
# where we cannot lock it over the wire and attempts to do so will
1225
707
# FIXME: It ought to be possible to call this without immediately
1226
708
# triggering _ensure_real. For now it's the easiest thing to do.
1227
709
self._ensure_real()
1228
real_repo = self._real_repository
1229
builder = real_repo.get_commit_builder(branch, parents,
710
builder = self._real_repository.get_commit_builder(branch, parents,
1230
711
config, timestamp=timestamp, timezone=timezone,
1231
712
committer=committer, revprops=revprops, revision_id=revision_id)
1234
715
def add_fallback_repository(self, repository):
1235
716
"""Add a repository to use for looking up data not held locally.
1237
718
:param repository: A repository.
1239
720
if not self._format.supports_external_lookups:
1240
raise errors.UnstackableRepositoryFormat(
1241
self._format.network_name(), self.base)
721
raise errors.UnstackableRepositoryFormat(self._format, self.base)
1242
722
# We need to accumulate additional repositories here, to pass them in
1243
723
# on various RPC's.
1245
if self.is_locked():
1246
# We will call fallback.unlock() when we transition to the unlocked
1247
# state, so always add a lock here. If a caller passes us a locked
1248
# repository, they are responsible for unlocking it later.
1249
repository.lock_read()
1250
self._check_fallback_repository(repository)
1251
724
self._fallback_repositories.append(repository)
1252
# If self._real_repository was parameterised already (e.g. because a
1253
# _real_branch had its get_stacked_on_url method called), then the
1254
# repository to be added may already be in the _real_repositories list.
1255
if self._real_repository is not None:
1256
fallback_locations = [repo.user_url for repo in
1257
self._real_repository._fallback_repositories]
1258
if repository.user_url not in fallback_locations:
1259
self._real_repository.add_fallback_repository(repository)
1261
def _check_fallback_repository(self, repository):
1262
"""Check that this repository can fallback to repository safely.
1264
Raise an error if not.
1266
:param repository: A repository to fallback to.
1268
return _mod_repository.InterRepository._assert_same_model(
1271
726
def add_inventory(self, revid, inv, parents):
1272
727
self._ensure_real()
1273
728
return self._real_repository.add_inventory(revid, inv, parents)
1275
def add_inventory_by_delta(self, basis_revision_id, delta, new_revision_id,
1276
parents, basis_inv=None, propagate_caches=False):
1278
return self._real_repository.add_inventory_by_delta(basis_revision_id,
1279
delta, new_revision_id, parents, basis_inv=basis_inv,
1280
propagate_caches=propagate_caches)
1282
730
def add_revision(self, rev_id, rev, inv=None, config=None):
1283
731
self._ensure_real()
1284
732
return self._real_repository.add_revision(
1394
813
self._ensure_real()
1395
814
return self._real_repository._get_versioned_file_checker(
1396
815
revisions, revision_versions_cache)
1398
817
def iter_files_bytes(self, desired_files):
1399
818
"""See Repository.iter_file_bytes.
1401
820
self._ensure_real()
1402
821
return self._real_repository.iter_files_bytes(desired_files)
1404
def get_parent_map(self, revision_ids):
823
def get_parent_map(self, keys):
1405
824
"""See bzrlib.Graph.get_parent_map()."""
1406
return self._make_parents_provider().get_parent_map(revision_ids)
825
# Hack to build up the caching logic.
826
ancestry = self._parents_map
828
# Repository is not locked, so there's no cache.
829
missing_revisions = set(keys)
832
missing_revisions = set(key for key in keys if key not in ancestry)
833
if missing_revisions:
834
parent_map = self._get_parent_map(missing_revisions)
835
if 'hpss' in debug.debug_flags:
836
mutter('retransmitted revisions: %d of %d',
837
len(set(ancestry).intersection(parent_map)),
839
ancestry.update(parent_map)
840
present_keys = [k for k in keys if k in ancestry]
841
if 'hpss' in debug.debug_flags:
842
if self._requested_parents is not None and len(ancestry) != 0:
843
self._requested_parents.update(present_keys)
844
mutter('Current RemoteRepository graph hit rate: %d%%',
845
100.0 * len(self._requested_parents) / len(ancestry))
846
return dict((k, ancestry[k]) for k in present_keys)
1408
def _get_parent_map_rpc(self, keys):
848
def _get_parent_map(self, keys):
1409
849
"""Helper for get_parent_map that performs the RPC."""
1410
850
medium = self._client._medium
1411
851
if medium._is_remote_before((1, 2)):
1412
852
# We already found out that the server can't understand
1413
853
# Repository.get_parent_map requests, so just fetch the whole
1416
# Note that this reads the whole graph, when only some keys are
1417
# wanted. On this old server there's no way (?) to get them all
1418
# in one go, and the user probably will have seen a warning about
1419
# the server being old anyhow.
1420
rg = self._get_revision_graph(None)
1421
# There is an API discrepancy between get_parent_map and
855
# XXX: Note that this will issue a deprecation warning. This is ok
856
# :- its because we're working with a deprecated server anyway, and
857
# the user will almost certainly have seen a warning about the
858
# server version already.
859
rg = self.get_revision_graph()
860
# There is an api discrepency between get_parent_map and
1422
861
# get_revision_graph. Specifically, a "key:()" pair in
1423
862
# get_revision_graph just means a node has no parents. For
1424
863
# "get_parent_map" it means the node is a ghost. So fix up the
1749
1155
:param recipe: A search recipe (start, stop, count).
1750
1156
:return: Serialised bytes.
1752
start_keys = ' '.join(recipe[1])
1753
stop_keys = ' '.join(recipe[2])
1754
count = str(recipe[3])
1158
start_keys = ' '.join(recipe[0])
1159
stop_keys = ' '.join(recipe[1])
1160
count = str(recipe[2])
1755
1161
return '\n'.join((start_keys, stop_keys, count))
1757
def _serialise_search_result(self, search_result):
1758
if isinstance(search_result, graph.PendingAncestryResult):
1759
parts = ['ancestry-of']
1760
parts.extend(search_result.heads)
1762
recipe = search_result.get_recipe()
1763
parts = [recipe[0], self._serialise_search_recipe(recipe)]
1764
return '\n'.join(parts)
1767
path = self.bzrdir._path_for_remote_call(self._client)
1769
response = self._call('PackRepository.autopack', path)
1770
except errors.UnknownSmartMethod:
1772
self._real_repository._pack_collection.autopack()
1775
if response[0] != 'ok':
1776
raise errors.UnexpectedSmartServerResponse(response)
1779
class RemoteStreamSink(repository.StreamSink):
1781
def _insert_real(self, stream, src_format, resume_tokens):
1782
self.target_repo._ensure_real()
1783
sink = self.target_repo._real_repository._get_sink()
1784
result = sink.insert_stream(stream, src_format, resume_tokens)
1786
self.target_repo.autopack()
1789
def insert_stream(self, stream, src_format, resume_tokens):
1790
target = self.target_repo
1791
target._unstacked_provider.missing_keys.clear()
1792
candidate_calls = [('Repository.insert_stream_1.19', (1, 19))]
1793
if target._lock_token:
1794
candidate_calls.append(('Repository.insert_stream_locked', (1, 14)))
1795
lock_args = (target._lock_token or '',)
1797
candidate_calls.append(('Repository.insert_stream', (1, 13)))
1799
client = target._client
1800
medium = client._medium
1801
path = target.bzrdir._path_for_remote_call(client)
1802
# Probe for the verb to use with an empty stream before sending the
1803
# real stream to it. We do this both to avoid the risk of sending a
1804
# large request that is then rejected, and because we don't want to
1805
# implement a way to buffer, rewind, or restart the stream.
1807
for verb, required_version in candidate_calls:
1808
if medium._is_remote_before(required_version):
1811
# We've already done the probing (and set _is_remote_before) on
1812
# a previous insert.
1815
byte_stream = smart_repo._stream_to_byte_stream([], src_format)
1817
response = client.call_with_body_stream(
1818
(verb, path, '') + lock_args, byte_stream)
1819
except errors.UnknownSmartMethod:
1820
medium._remember_remote_is_before(required_version)
1826
return self._insert_real(stream, src_format, resume_tokens)
1827
self._last_inv_record = None
1828
self._last_substream = None
1829
if required_version < (1, 19):
1830
# Remote side doesn't support inventory deltas. Wrap the stream to
1831
# make sure we don't send any. If the stream contains inventory
1832
# deltas we'll interrupt the smart insert_stream request and
1834
stream = self._stop_stream_if_inventory_delta(stream)
1835
byte_stream = smart_repo._stream_to_byte_stream(
1837
resume_tokens = ' '.join(resume_tokens)
1838
response = client.call_with_body_stream(
1839
(verb, path, resume_tokens) + lock_args, byte_stream)
1840
if response[0][0] not in ('ok', 'missing-basis'):
1841
raise errors.UnexpectedSmartServerResponse(response)
1842
if self._last_substream is not None:
1843
# The stream included an inventory-delta record, but the remote
1844
# side isn't new enough to support them. So we need to send the
1845
# rest of the stream via VFS.
1846
self.target_repo.refresh_data()
1847
return self._resume_stream_with_vfs(response, src_format)
1848
if response[0][0] == 'missing-basis':
1849
tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
1850
resume_tokens = tokens
1851
return resume_tokens, set(missing_keys)
1853
self.target_repo.refresh_data()
1856
def _resume_stream_with_vfs(self, response, src_format):
1857
"""Resume sending a stream via VFS, first resending the record and
1858
substream that couldn't be sent via an insert_stream verb.
1860
if response[0][0] == 'missing-basis':
1861
tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
1862
# Ignore missing_keys, we haven't finished inserting yet
1865
def resume_substream():
1866
# Yield the substream that was interrupted.
1867
for record in self._last_substream:
1869
self._last_substream = None
1870
def resume_stream():
1871
# Finish sending the interrupted substream
1872
yield ('inventory-deltas', resume_substream())
1873
# Then simply continue sending the rest of the stream.
1874
for substream_kind, substream in self._last_stream:
1875
yield substream_kind, substream
1876
return self._insert_real(resume_stream(), src_format, tokens)
1878
def _stop_stream_if_inventory_delta(self, stream):
1879
"""Normally this just lets the original stream pass-through unchanged.
1881
However if any 'inventory-deltas' substream occurs it will stop
1882
streaming, and store the interrupted substream and stream in
1883
self._last_substream and self._last_stream so that the stream can be
1884
resumed by _resume_stream_with_vfs.
1887
stream_iter = iter(stream)
1888
for substream_kind, substream in stream_iter:
1889
if substream_kind == 'inventory-deltas':
1890
self._last_substream = substream
1891
self._last_stream = stream_iter
1894
yield substream_kind, substream
1897
class RemoteStreamSource(repository.StreamSource):
1898
"""Stream data from a remote server."""
1900
def get_stream(self, search):
1901
if (self.from_repository._fallback_repositories and
1902
self.to_format._fetch_order == 'topological'):
1903
return self._real_stream(self.from_repository, search)
1906
repos = [self.from_repository]
1912
repos.extend(repo._fallback_repositories)
1913
sources.append(repo)
1914
return self.missing_parents_chain(search, sources)
1916
def get_stream_for_missing_keys(self, missing_keys):
1917
self.from_repository._ensure_real()
1918
real_repo = self.from_repository._real_repository
1919
real_source = real_repo._get_source(self.to_format)
1920
return real_source.get_stream_for_missing_keys(missing_keys)
1922
def _real_stream(self, repo, search):
1923
"""Get a stream for search from repo.
1925
This never called RemoteStreamSource.get_stream, and is a heler
1926
for RemoteStreamSource._get_stream to allow getting a stream
1927
reliably whether fallback back because of old servers or trying
1928
to stream from a non-RemoteRepository (which the stacked support
1931
source = repo._get_source(self.to_format)
1932
if isinstance(source, RemoteStreamSource):
1934
source = repo._real_repository._get_source(self.to_format)
1935
return source.get_stream(search)
1937
def _get_stream(self, repo, search):
1938
"""Core worker to get a stream from repo for search.
1940
This is used by both get_stream and the stacking support logic. It
1941
deliberately gets a stream for repo which does not need to be
1942
self.from_repository. In the event that repo is not Remote, or
1943
cannot do a smart stream, a fallback is made to the generic
1944
repository._get_stream() interface, via self._real_stream.
1946
In the event of stacking, streams from _get_stream will not
1947
contain all the data for search - this is normal (see get_stream).
1949
:param repo: A repository.
1950
:param search: A search.
1952
# Fallbacks may be non-smart
1953
if not isinstance(repo, RemoteRepository):
1954
return self._real_stream(repo, search)
1955
client = repo._client
1956
medium = client._medium
1957
path = repo.bzrdir._path_for_remote_call(client)
1958
search_bytes = repo._serialise_search_result(search)
1959
args = (path, self.to_format.network_name())
1961
('Repository.get_stream_1.19', (1, 19)),
1962
('Repository.get_stream', (1, 13))]
1964
for verb, version in candidate_verbs:
1965
if medium._is_remote_before(version):
1968
response = repo._call_with_body_bytes_expecting_body(
1969
verb, args, search_bytes)
1970
except errors.UnknownSmartMethod:
1971
medium._remember_remote_is_before(version)
1973
response_tuple, response_handler = response
1977
return self._real_stream(repo, search)
1978
if response_tuple[0] != 'ok':
1979
raise errors.UnexpectedSmartServerResponse(response_tuple)
1980
byte_stream = response_handler.read_streamed_body()
1981
src_format, stream = smart_repo._byte_stream_to_stream(byte_stream)
1982
if src_format.network_name() != repo._format.network_name():
1983
raise AssertionError(
1984
"Mismatched RemoteRepository and stream src %r, %r" % (
1985
src_format.network_name(), repo._format.network_name()))
1988
def missing_parents_chain(self, search, sources):
1989
"""Chain multiple streams together to handle stacking.
1991
:param search: The overall search to satisfy with streams.
1992
:param sources: A list of Repository objects to query.
1994
self.from_serialiser = self.from_repository._format._serializer
1995
self.seen_revs = set()
1996
self.referenced_revs = set()
1997
# If there are heads in the search, or the key count is > 0, we are not
1999
while not search.is_empty() and len(sources) > 1:
2000
source = sources.pop(0)
2001
stream = self._get_stream(source, search)
2002
for kind, substream in stream:
2003
if kind != 'revisions':
2004
yield kind, substream
2006
yield kind, self.missing_parents_rev_handler(substream)
2007
search = search.refine(self.seen_revs, self.referenced_revs)
2008
self.seen_revs = set()
2009
self.referenced_revs = set()
2010
if not search.is_empty():
2011
for kind, stream in self._get_stream(sources[0], search):
2014
def missing_parents_rev_handler(self, substream):
2015
for content in substream:
2016
revision_bytes = content.get_bytes_as('fulltext')
2017
revision = self.from_serialiser.read_revision_from_string(
2019
self.seen_revs.add(content.key[-1])
2020
self.referenced_revs.update(revision.parent_ids)
2024
1164
class RemoteBranchLockableFiles(LockableFiles):
2025
1165
"""A 'LockableFiles' implementation that talks to a smart server.
2027
1167
This is not a public interface class.
2044
1184
class RemoteBranchFormat(branch.BranchFormat):
2046
def __init__(self, network_name=None):
2047
super(RemoteBranchFormat, self).__init__()
2048
self._matchingbzrdir = RemoteBzrDirFormat()
2049
self._matchingbzrdir.set_branch_format(self)
2050
self._custom_format = None
2051
self._network_name = network_name
2053
1186
def __eq__(self, other):
2054
return (isinstance(other, RemoteBranchFormat) and
1187
return (isinstance(other, RemoteBranchFormat) and
2055
1188
self.__dict__ == other.__dict__)
2057
def _ensure_real(self):
2058
if self._custom_format is None:
2059
self._custom_format = branch.network_format_registry.get(
2062
1190
def get_format_description(self):
2064
return 'Remote: ' + self._custom_format.get_format_description()
2066
def network_name(self):
2067
return self._network_name
2069
def open(self, a_bzrdir, name=None, ignore_fallbacks=False):
2070
return a_bzrdir.open_branch(name=name,
2071
ignore_fallbacks=ignore_fallbacks)
2073
def _vfs_initialize(self, a_bzrdir, name):
2074
# Initialisation when using a local bzrdir object, or a non-vfs init
2075
# method is not available on the server.
2076
# self._custom_format is always set - the start of initialize ensures
2078
if isinstance(a_bzrdir, RemoteBzrDir):
2079
a_bzrdir._ensure_real()
2080
result = self._custom_format.initialize(a_bzrdir._real_bzrdir,
2083
# We assume the bzrdir is parameterised; it may not be.
2084
result = self._custom_format.initialize(a_bzrdir, name)
2085
if (isinstance(a_bzrdir, RemoteBzrDir) and
2086
not isinstance(result, RemoteBranch)):
2087
result = RemoteBranch(a_bzrdir, a_bzrdir.find_repository(), result,
2091
def initialize(self, a_bzrdir, name=None):
2092
# 1) get the network name to use.
2093
if self._custom_format:
2094
network_name = self._custom_format.network_name()
2096
# Select the current bzrlib default and ask for that.
2097
reference_bzrdir_format = bzrdir.format_registry.get('default')()
2098
reference_format = reference_bzrdir_format.get_branch_format()
2099
self._custom_format = reference_format
2100
network_name = reference_format.network_name()
2101
# Being asked to create on a non RemoteBzrDir:
2102
if not isinstance(a_bzrdir, RemoteBzrDir):
2103
return self._vfs_initialize(a_bzrdir, name=name)
2104
medium = a_bzrdir._client._medium
2105
if medium._is_remote_before((1, 13)):
2106
return self._vfs_initialize(a_bzrdir, name=name)
2107
# Creating on a remote bzr dir.
2108
# 2) try direct creation via RPC
2109
path = a_bzrdir._path_for_remote_call(a_bzrdir._client)
2110
if name is not None:
2111
# XXX JRV20100304: Support creating colocated branches
2112
raise errors.NoColocatedBranchSupport(self)
2113
verb = 'BzrDir.create_branch'
2115
response = a_bzrdir._call(verb, path, network_name)
2116
except errors.UnknownSmartMethod:
2117
# Fallback - use vfs methods
2118
medium._remember_remote_is_before((1, 13))
2119
return self._vfs_initialize(a_bzrdir, name=name)
2120
if response[0] != 'ok':
2121
raise errors.UnexpectedSmartServerResponse(response)
2122
# Turn the response into a RemoteRepository object.
2123
format = RemoteBranchFormat(network_name=response[1])
2124
repo_format = response_tuple_to_repo_format(response[3:])
2125
if response[2] == '':
2126
repo_bzrdir = a_bzrdir
2128
repo_bzrdir = RemoteBzrDir(
2129
a_bzrdir.root_transport.clone(response[2]), a_bzrdir._format,
2131
remote_repo = RemoteRepository(repo_bzrdir, repo_format)
2132
remote_branch = RemoteBranch(a_bzrdir, remote_repo,
2133
format=format, setup_stacking=False, name=name)
2134
# XXX: We know this is a new branch, so it must have revno 0, revid
2135
# NULL_REVISION. Creating the branch locked would make this be unable
2136
# to be wrong; here its simply very unlikely to be wrong. RBC 20090225
2137
remote_branch._last_revision_info_cache = 0, NULL_REVISION
2138
return remote_branch
2140
def make_tags(self, branch):
2142
return self._custom_format.make_tags(branch)
1191
return 'Remote BZR Branch'
1193
def get_format_string(self):
1194
return 'Remote BZR Branch'
1196
def open(self, a_bzrdir):
1197
return a_bzrdir.open_branch()
1199
def initialize(self, a_bzrdir):
1200
return a_bzrdir.create_branch()
2144
1202
def supports_tags(self):
2145
1203
# Remote branches might support tags, but we won't know until we
2146
1204
# access the real remote branch.
2148
return self._custom_format.supports_tags()
2150
def supports_stacking(self):
2152
return self._custom_format.supports_stacking()
2154
def supports_set_append_revisions_only(self):
2156
return self._custom_format.supports_set_append_revisions_only()
2159
class RemoteBranch(branch.Branch, _RpcHelper, lock._RelockDebugMixin):
1208
class RemoteBranch(branch.Branch):
2160
1209
"""Branch stored on a server accessed by HPSS RPC.
2162
1211
At the moment most operations are mapped down to simple file operations.
2165
1214
def __init__(self, remote_bzrdir, remote_repository, real_branch=None,
2166
_client=None, format=None, setup_stacking=True, name=None):
2167
1216
"""Create a RemoteBranch instance.
2169
1218
:param real_branch: An optional local implementation of the branch
2170
1219
format, usually accessing the data via the VFS.
2171
1220
:param _client: Private parameter for testing.
2172
:param format: A RemoteBranchFormat object, None to create one
2173
automatically. If supplied it should have a network_name already
2175
:param setup_stacking: If True make an RPC call to determine the
2176
stacked (or not) status of the branch. If False assume the branch
2178
:param name: Colocated branch name
2180
1222
# We intentionally don't call the parent class's __init__, because it
2181
1223
# will try to assign to self.tags, which is a property in this subclass.
2182
1224
# And the parent's __init__ doesn't do much anyway.
1225
self._revision_id_to_revno_cache = None
1226
self._revision_history_cache = None
1227
self._last_revision_info_cache = None
2183
1228
self.bzrdir = remote_bzrdir
2184
1229
if _client is not None:
2185
1230
self._client = _client
2337
1333
:raises UnstackableRepositoryFormat: If the repository does not support
2341
# there may not be a repository yet, so we can't use
2342
# self._translate_error, so we can't use self._call either.
2343
response = self._client.call('Branch.get_stacked_on_url',
2344
self._remote_path())
2345
except errors.ErrorFromSmartServer, err:
2346
# there may not be a repository yet, so we can't call through
2347
# its _translate_error
2348
_translate_error(err, branch=self)
2349
except errors.UnknownSmartMethod, err:
2351
return self._real_branch.get_stacked_on_url()
2352
if response[0] != 'ok':
2353
raise errors.UnexpectedSmartServerResponse(response)
2356
def set_stacked_on_url(self, url):
2357
branch.Branch.set_stacked_on_url(self, url)
2359
self._is_stacked = False
2361
self._is_stacked = True
2363
def _vfs_get_tags_bytes(self):
2365
return self._real_branch._get_tags_bytes()
2367
def _get_tags_bytes(self):
2368
medium = self._client._medium
2369
if medium._is_remote_before((1, 13)):
2370
return self._vfs_get_tags_bytes()
2372
response = self._call('Branch.get_tags_bytes', self._remote_path())
2373
except errors.UnknownSmartMethod:
2374
medium._remember_remote_is_before((1, 13))
2375
return self._vfs_get_tags_bytes()
2378
def _vfs_set_tags_bytes(self, bytes):
2380
return self._real_branch._set_tags_bytes(bytes)
2382
def _set_tags_bytes(self, bytes):
2383
medium = self._client._medium
2384
if medium._is_remote_before((1, 18)):
2385
self._vfs_set_tags_bytes(bytes)
2389
self._remote_path(), self._lock_token, self._repo_lock_token)
2390
response = self._call_with_body_bytes(
2391
'Branch.set_tags_bytes', args, bytes)
2392
except errors.UnknownSmartMethod:
2393
medium._remember_remote_is_before((1, 18))
2394
self._vfs_set_tags_bytes(bytes)
1337
return self._real_branch.get_stacked_on_url()
2396
1339
def lock_read(self):
2397
"""Lock the branch for read operations.
2399
:return: An object with an unlock method which will release the lock
2402
self.repository.lock_read()
2403
1340
if not self._lock_mode:
2404
self._note_lock('r')
2405
1341
self._lock_mode = 'r'
2406
1342
self._lock_count = 1
2407
1343
if self._real_branch is not None:
2408
1344
self._real_branch.lock_read()
2410
1346
self._lock_count += 1
2413
1348
def _remote_lock_write(self, token):
2414
1349
if token is None:
2415
1350
branch_token = repo_token = ''
2417
1352
branch_token = token
2418
repo_token = self.repository.lock_write().repository_token
1353
repo_token = self.repository.lock_write()
2419
1354
self.repository.unlock()
2420
err_context = {'token': token}
2421
response = self._call(
2422
'Branch.lock_write', self._remote_path(), branch_token,
2423
repo_token or '', **err_context)
1355
path = self.bzrdir._path_for_remote_call(self._client)
1357
response = self._client.call(
1358
'Branch.lock_write', path, branch_token, repo_token or '')
1359
except errors.ErrorFromSmartServer, err:
1360
if err.error_verb == 'LockContention':
1361
raise errors.LockContention('(remote lock)')
1362
elif err.error_verb == 'TokenMismatch':
1363
raise errors.TokenMismatch(token, '(remote token)')
1364
elif err.error_verb == 'UnlockableTransport':
1365
raise errors.UnlockableTransport(self.bzrdir.root_transport)
1366
elif err.error_verb == 'ReadOnlyError':
1367
raise errors.ReadOnlyError(self)
1368
elif err.error_verb == 'LockFailed':
1369
raise errors.LockFailed(err.error_args[0], err.error_args[1])
2424
1371
if response[0] != 'ok':
2425
1372
raise errors.UnexpectedSmartServerResponse(response)
2426
1373
ok, branch_token, repo_token = response
2427
1374
return branch_token, repo_token
2429
1376
def lock_write(self, token=None):
2430
1377
if not self._lock_mode:
2431
self._note_lock('w')
2432
# Lock the branch and repo in one remote call.
2433
1378
remote_tokens = self._remote_lock_write(token)
2434
1379
self._lock_token, self._repo_lock_token = remote_tokens
2435
1380
if not self._lock_token:
2436
1381
raise SmartProtocolError('Remote server did not return a token!')
2437
# Tell the self.repository object that it is locked.
2438
self.repository.lock_write(
2439
self._repo_lock_token, _skip_rpc=True)
1382
# TODO: We really, really, really don't want to call _ensure_real
1383
# here, but it's the easiest way to ensure coherency between the
1384
# state of the RemoteBranch and RemoteRepository objects and the
1385
# physical locks. If we don't materialise the real objects here,
1386
# then getting everything in the right state later is complex, so
1387
# for now we just do it the lazy way.
1388
# -- Andrew Bennetts, 2007-02-22.
2441
1390
if self._real_branch is not None:
2442
self._real_branch.lock_write(token=self._lock_token)
1391
self._real_branch.repository.lock_write(
1392
token=self._repo_lock_token)
1394
self._real_branch.lock_write(token=self._lock_token)
1396
self._real_branch.repository.unlock()
2443
1397
if token is not None:
2444
1398
self._leave_lock = True
1400
# XXX: this case seems to be unreachable; token cannot be None.
2446
1401
self._leave_lock = False
2447
1402
self._lock_mode = 'w'
2448
1403
self._lock_count = 1
2450
1405
raise errors.ReadOnlyTransaction
2452
1407
if token is not None:
2453
# A token was given to lock_write, and we're relocking, so
2454
# check that the given token actually matches the one we
1408
# A token was given to lock_write, and we're relocking, so check
1409
# that the given token actually matches the one we already have.
2456
1410
if token != self._lock_token:
2457
1411
raise errors.TokenMismatch(token, self._lock_token)
2458
1412
self._lock_count += 1
2459
# Re-lock the repository too.
2460
self.repository.lock_write(self._repo_lock_token)
2461
return BranchWriteLockResult(self.unlock, self._lock_token or None)
1413
return self._lock_token or None
2463
1415
def _unlock(self, branch_token, repo_token):
2464
err_context = {'token': str((branch_token, repo_token))}
2465
response = self._call(
2466
'Branch.unlock', self._remote_path(), branch_token,
2467
repo_token or '', **err_context)
1416
path = self.bzrdir._path_for_remote_call(self._client)
1418
response = self._client.call('Branch.unlock', path, branch_token,
1420
except errors.ErrorFromSmartServer, err:
1421
if err.error_verb == 'TokenMismatch':
1422
raise errors.TokenMismatch(
1423
str((branch_token, repo_token)), '(remote tokens)')
2468
1425
if response == ('ok',):
2470
1427
raise errors.UnexpectedSmartServerResponse(response)
2472
@only_raises(errors.LockNotHeld, errors.LockBroken)
2473
1429
def unlock(self):
2475
self._lock_count -= 1
2476
if not self._lock_count:
2477
self._clear_cached_state()
2478
mode = self._lock_mode
2479
self._lock_mode = None
2480
if self._real_branch is not None:
2481
if (not self._leave_lock and mode == 'w' and
2482
self._repo_lock_token):
2483
# If this RemoteBranch will remove the physical lock
2484
# for the repository, make sure the _real_branch
2485
# doesn't do it first. (Because the _real_branch's
2486
# repository is set to be the RemoteRepository.)
2487
self._real_branch.repository.leave_lock_in_place()
2488
self._real_branch.unlock()
2490
# Only write-locked branched need to make a remote method
2491
# call to perform the unlock.
2493
if not self._lock_token:
2494
raise AssertionError('Locked, but no token!')
2495
branch_token = self._lock_token
2496
repo_token = self._repo_lock_token
2497
self._lock_token = None
2498
self._repo_lock_token = None
2499
if not self._leave_lock:
2500
self._unlock(branch_token, repo_token)
2502
self.repository.unlock()
1430
self._lock_count -= 1
1431
if not self._lock_count:
1432
self._clear_cached_state()
1433
mode = self._lock_mode
1434
self._lock_mode = None
1435
if self._real_branch is not None:
1436
if (not self._leave_lock and mode == 'w' and
1437
self._repo_lock_token):
1438
# If this RemoteBranch will remove the physical lock for the
1439
# repository, make sure the _real_branch doesn't do it
1440
# first. (Because the _real_branch's repository is set to
1441
# be the RemoteRepository.)
1442
self._real_branch.repository.leave_lock_in_place()
1443
self._real_branch.unlock()
1445
# Only write-locked branched need to make a remote method call
1446
# to perfom the unlock.
1448
if not self._lock_token:
1449
raise AssertionError('Locked, but no token!')
1450
branch_token = self._lock_token
1451
repo_token = self._repo_lock_token
1452
self._lock_token = None
1453
self._repo_lock_token = None
1454
if not self._leave_lock:
1455
self._unlock(branch_token, repo_token)
2504
1457
def break_lock(self):
2505
1458
self._ensure_real()
2558
def _remote_path(self):
2559
return self.bzrdir._path_for_remote_call(self._client)
2561
1492
def _set_last_revision_descendant(self, revision_id, other_branch,
2562
1493
allow_diverged=False, allow_overwrite_descendant=False):
2563
# This performs additional work to meet the hook contract; while its
2564
# undesirable, we have to synthesise the revno to call the hook, and
2565
# not calling the hook is worse as it means changes can't be prevented.
2566
# Having calculated this though, we can't just call into
2567
# set_last_revision_info as a simple call, because there is a set_rh
2568
# hook that some folk may still be using.
2569
old_revno, old_revid = self.last_revision_info()
2570
history = self._lefthand_history(revision_id)
2571
self._run_pre_change_branch_tip_hooks(len(history), revision_id)
2572
err_context = {'other_branch': other_branch}
2573
response = self._call('Branch.set_last_revision_ex',
2574
self._remote_path(), self._lock_token, self._repo_lock_token,
2575
revision_id, int(allow_diverged), int(allow_overwrite_descendant),
1494
path = self.bzrdir._path_for_remote_call(self._client)
1496
response = self._client.call('Branch.set_last_revision_ex',
1497
path, self._lock_token, self._repo_lock_token, revision_id,
1498
int(allow_diverged), int(allow_overwrite_descendant))
1499
except errors.ErrorFromSmartServer, err:
1500
if err.error_verb == 'NoSuchRevision':
1501
raise NoSuchRevision(self, revision_id)
1502
elif err.error_verb == 'Diverged':
1503
raise errors.DivergedBranches(self, other_branch)
2577
1505
self._clear_cached_state()
2578
1506
if len(response) != 3 and response[0] != 'ok':
2579
1507
raise errors.UnexpectedSmartServerResponse(response)
2580
1508
new_revno, new_revision_id = response[1:]
2581
1509
self._last_revision_info_cache = new_revno, new_revision_id
2582
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2583
if self._real_branch is not None:
2584
cache = new_revno, new_revision_id
2585
self._real_branch._last_revision_info_cache = cache
1510
self._real_branch._last_revision_info_cache = new_revno, new_revision_id
2587
1512
def _set_last_revision(self, revision_id):
2588
old_revno, old_revid = self.last_revision_info()
2589
# This performs additional work to meet the hook contract; while its
2590
# undesirable, we have to synthesise the revno to call the hook, and
2591
# not calling the hook is worse as it means changes can't be prevented.
2592
# Having calculated this though, we can't just call into
2593
# set_last_revision_info as a simple call, because there is a set_rh
2594
# hook that some folk may still be using.
2595
history = self._lefthand_history(revision_id)
2596
self._run_pre_change_branch_tip_hooks(len(history), revision_id)
1513
path = self.bzrdir._path_for_remote_call(self._client)
2597
1514
self._clear_cached_state()
2598
response = self._call('Branch.set_last_revision',
2599
self._remote_path(), self._lock_token, self._repo_lock_token,
1516
response = self._client.call('Branch.set_last_revision',
1517
path, self._lock_token, self._repo_lock_token, revision_id)
1518
except errors.ErrorFromSmartServer, err:
1519
if err.error_verb == 'NoSuchRevision':
1520
raise NoSuchRevision(self, revision_id)
2601
1522
if response != ('ok',):
2602
1523
raise errors.UnexpectedSmartServerResponse(response)
2603
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2605
1525
@needs_write_lock
2606
1526
def set_revision_history(self, rev_history):
2613
1533
rev_id = rev_history[-1]
2614
1534
self._set_last_revision(rev_id)
2615
for hook in branch.Branch.hooks['set_rh']:
2616
hook(self, rev_history)
2617
1535
self._cache_revision_history(rev_history)
2619
def _get_parent_location(self):
2620
medium = self._client._medium
2621
if medium._is_remote_before((1, 13)):
2622
return self._vfs_get_parent_location()
2624
response = self._call('Branch.get_parent', self._remote_path())
2625
except errors.UnknownSmartMethod:
2626
medium._remember_remote_is_before((1, 13))
2627
return self._vfs_get_parent_location()
2628
if len(response) != 1:
2629
raise errors.UnexpectedSmartServerResponse(response)
2630
parent_location = response[0]
2631
if parent_location == '':
2633
return parent_location
2635
def _vfs_get_parent_location(self):
2637
return self._real_branch._get_parent_location()
2639
def _set_parent_location(self, url):
2640
medium = self._client._medium
2641
if medium._is_remote_before((1, 15)):
2642
return self._vfs_set_parent_location(url)
2644
call_url = url or ''
2645
if type(call_url) is not str:
2646
raise AssertionError('url must be a str or None (%s)' % url)
2647
response = self._call('Branch.set_parent_location',
2648
self._remote_path(), self._lock_token, self._repo_lock_token,
2650
except errors.UnknownSmartMethod:
2651
medium._remember_remote_is_before((1, 15))
2652
return self._vfs_set_parent_location(url)
2654
raise errors.UnexpectedSmartServerResponse(response)
2656
def _vfs_set_parent_location(self, url):
2658
return self._real_branch._set_parent_location(url)
1537
def get_parent(self):
1539
return self._real_branch.get_parent()
1541
def set_parent(self, url):
1543
return self._real_branch.set_parent(url)
1545
def set_stacked_on_url(self, stacked_location):
1546
"""Set the URL this branch is stacked against.
1548
:raises UnstackableBranchFormat: If the branch does not support
1550
:raises UnstackableRepositoryFormat: If the repository does not support
1554
return self._real_branch.set_stacked_on_url(stacked_location)
1556
def sprout(self, to_bzrdir, revision_id=None):
1557
# Like Branch.sprout, except that it sprouts a branch in the default
1558
# format, because RemoteBranches can't be created at arbitrary URLs.
1559
# XXX: if to_bzrdir is a RemoteBranch, this should perhaps do
1560
# to_bzrdir.create_branch...
1562
result = self._real_branch._format.initialize(to_bzrdir)
1563
self.copy_content_into(result, revision_id=revision_id)
1564
result.set_parent(self.bzrdir.root_transport.base)
2660
1567
@needs_write_lock
2661
1568
def pull(self, source, overwrite=False, stop_revision=None,
2721
1622
except errors.UnknownSmartMethod:
2722
1623
medium._remember_remote_is_before((1, 6))
2723
1624
self._clear_cached_state_of_remote_branch_only()
2724
self.set_revision_history(self._lefthand_history(revision_id,
2725
last_rev=last_rev,other_branch=other_branch))
1626
self._real_branch.generate_revision_history(
1627
revision_id, last_rev=last_rev, other_branch=other_branch)
1632
return self._real_branch.tags
2727
1634
def set_push_location(self, location):
2728
1635
self._ensure_real()
2729
1636
return self._real_branch.set_push_location(location)
2732
class RemoteConfig(object):
2733
"""A Config that reads and writes from smart verbs.
2735
It is a low-level object that considers config data to be name/value pairs
2736
that may be associated with a section. Assigning meaning to the these
2737
values is done at higher levels like bzrlib.config.TreeConfig.
2740
def get_option(self, name, section=None, default=None):
2741
"""Return the value associated with a named option.
2743
:param name: The name of the value
2744
:param section: The section the option is in (if any)
2745
:param default: The value to return if the value is not set
2746
:return: The value or default value
1639
def update_revisions(self, other, stop_revision=None, overwrite=False,
1641
"""See Branch.update_revisions."""
2749
configobj = self._get_configobj()
2751
section_obj = configobj
1644
if stop_revision is None:
1645
stop_revision = other.last_revision()
1646
if revision.is_null(stop_revision):
1647
# if there are no commits, we're done.
1649
self.fetch(other, stop_revision)
1652
# Just unconditionally set the new revision. We don't care if
1653
# the branches have diverged.
1654
self._set_last_revision(stop_revision)
2754
section_obj = configobj[section]
2757
return section_obj.get(name, default)
2758
except errors.UnknownSmartMethod:
2759
return self._vfs_get_option(name, section, default)
2761
def _response_to_configobj(self, response):
2762
if len(response[0]) and response[0][0] != 'ok':
2763
raise errors.UnexpectedSmartServerResponse(response)
2764
lines = response[1].read_body_bytes().splitlines()
2765
return config.ConfigObj(lines, encoding='utf-8')
2768
class RemoteBranchConfig(RemoteConfig):
2769
"""A RemoteConfig for Branches."""
2771
def __init__(self, branch):
2772
self._branch = branch
2774
def _get_configobj(self):
2775
path = self._branch._remote_path()
2776
response = self._branch._client.call_expecting_body(
2777
'Branch.get_config_file', path)
2778
return self._response_to_configobj(response)
2780
def set_option(self, value, name, section=None):
2781
"""Set the value associated with a named option.
2783
:param value: The value to set
2784
:param name: The name of the value to set
2785
:param section: The section the option is in (if any)
2787
medium = self._branch._client._medium
2788
if medium._is_remote_before((1, 14)):
2789
return self._vfs_set_option(value, name, section)
2791
path = self._branch._remote_path()
2792
response = self._branch._client.call('Branch.set_config_option',
2793
path, self._branch._lock_token, self._branch._repo_lock_token,
2794
value.encode('utf8'), name, section or '')
2795
except errors.UnknownSmartMethod:
2796
medium._remember_remote_is_before((1, 14))
2797
return self._vfs_set_option(value, name, section)
2799
raise errors.UnexpectedSmartServerResponse(response)
2801
def _real_object(self):
2802
self._branch._ensure_real()
2803
return self._branch._real_branch
2805
def _vfs_set_option(self, value, name, section=None):
2806
return self._real_object()._get_config().set_option(
2807
value, name, section)
2810
class RemoteBzrDirConfig(RemoteConfig):
2811
"""A RemoteConfig for BzrDirs."""
2813
def __init__(self, bzrdir):
2814
self._bzrdir = bzrdir
2816
def _get_configobj(self):
2817
medium = self._bzrdir._client._medium
2818
verb = 'BzrDir.get_config_file'
2819
if medium._is_remote_before((1, 15)):
2820
raise errors.UnknownSmartMethod(verb)
2821
path = self._bzrdir._path_for_remote_call(self._bzrdir._client)
2822
response = self._bzrdir._call_expecting_body(
2824
return self._response_to_configobj(response)
2826
def _vfs_get_option(self, name, section, default):
2827
return self._real_object()._get_config().get_option(
2828
name, section, default)
2830
def set_option(self, value, name, section=None):
2831
"""Set the value associated with a named option.
2833
:param value: The value to set
2834
:param name: The name of the value to set
2835
:param section: The section the option is in (if any)
2837
return self._real_object()._get_config().set_option(
2838
value, name, section)
2840
def _real_object(self):
2841
self._bzrdir._ensure_real()
2842
return self._bzrdir._real_bzrdir
1656
medium = self._client._medium
1657
if not medium._is_remote_before((1, 6)):
1659
self._set_last_revision_descendant(stop_revision, other)
1661
except errors.UnknownSmartMethod:
1662
medium._remember_remote_is_before((1, 6))
1663
# Fallback for pre-1.6 servers: check for divergence
1664
# client-side, then do _set_last_revision.
1665
last_rev = revision.ensure_null(self.last_revision())
1667
graph = self.repository.get_graph()
1668
if self._check_if_descendant_or_diverged(
1669
stop_revision, last_rev, graph, other):
1670
# stop_revision is a descendant of last_rev, but we aren't
1671
# overwriting, so we're done.
1673
self._set_last_revision(stop_revision)
2846
1678
def _extract_tar(tar, to_dir):
2851
1683
for tarinfo in tar:
2852
1684
tar.extract(tarinfo, to_dir)
2855
def _translate_error(err, **context):
2856
"""Translate an ErrorFromSmartServer into a more useful error.
2858
Possible context keys:
2866
If the error from the server doesn't match a known pattern, then
2867
UnknownErrorFromSmartServer is raised.
2871
return context[name]
2872
except KeyError, key_err:
2873
mutter('Missing key %r in context %r', key_err.args[0], context)
2876
"""Get the path from the context if present, otherwise use first error
2880
return context['path']
2881
except KeyError, key_err:
2883
return err.error_args[0]
2884
except IndexError, idx_err:
2886
'Missing key %r in context %r', key_err.args[0], context)
2889
if err.error_verb == 'IncompatibleRepositories':
2890
raise errors.IncompatibleRepositories(err.error_args[0],
2891
err.error_args[1], err.error_args[2])
2892
elif err.error_verb == 'NoSuchRevision':
2893
raise NoSuchRevision(find('branch'), err.error_args[0])
2894
elif err.error_verb == 'nosuchrevision':
2895
raise NoSuchRevision(find('repository'), err.error_args[0])
2896
elif err.error_verb == 'nobranch':
2897
if len(err.error_args) >= 1:
2898
extra = err.error_args[0]
2901
raise errors.NotBranchError(path=find('bzrdir').root_transport.base,
2903
elif err.error_verb == 'norepository':
2904
raise errors.NoRepositoryPresent(find('bzrdir'))
2905
elif err.error_verb == 'LockContention':
2906
raise errors.LockContention('(remote lock)')
2907
elif err.error_verb == 'UnlockableTransport':
2908
raise errors.UnlockableTransport(find('bzrdir').root_transport)
2909
elif err.error_verb == 'LockFailed':
2910
raise errors.LockFailed(err.error_args[0], err.error_args[1])
2911
elif err.error_verb == 'TokenMismatch':
2912
raise errors.TokenMismatch(find('token'), '(remote token)')
2913
elif err.error_verb == 'Diverged':
2914
raise errors.DivergedBranches(find('branch'), find('other_branch'))
2915
elif err.error_verb == 'TipChangeRejected':
2916
raise errors.TipChangeRejected(err.error_args[0].decode('utf8'))
2917
elif err.error_verb == 'UnstackableBranchFormat':
2918
raise errors.UnstackableBranchFormat(*err.error_args)
2919
elif err.error_verb == 'UnstackableRepositoryFormat':
2920
raise errors.UnstackableRepositoryFormat(*err.error_args)
2921
elif err.error_verb == 'NotStacked':
2922
raise errors.NotStacked(branch=find('branch'))
2923
elif err.error_verb == 'PermissionDenied':
2925
if len(err.error_args) >= 2:
2926
extra = err.error_args[1]
2929
raise errors.PermissionDenied(path, extra=extra)
2930
elif err.error_verb == 'ReadError':
2932
raise errors.ReadError(path)
2933
elif err.error_verb == 'NoSuchFile':
2935
raise errors.NoSuchFile(path)
2936
elif err.error_verb == 'FileExists':
2937
raise errors.FileExists(err.error_args[0])
2938
elif err.error_verb == 'DirectoryNotEmpty':
2939
raise errors.DirectoryNotEmpty(err.error_args[0])
2940
elif err.error_verb == 'ShortReadvError':
2941
args = err.error_args
2942
raise errors.ShortReadvError(
2943
args[0], int(args[1]), int(args[2]), int(args[3]))
2944
elif err.error_verb in ('UnicodeEncodeError', 'UnicodeDecodeError'):
2945
encoding = str(err.error_args[0]) # encoding must always be a string
2946
val = err.error_args[1]
2947
start = int(err.error_args[2])
2948
end = int(err.error_args[3])
2949
reason = str(err.error_args[4]) # reason must always be a string
2950
if val.startswith('u:'):
2951
val = val[2:].decode('utf-8')
2952
elif val.startswith('s:'):
2953
val = val[2:].decode('base64')
2954
if err.error_verb == 'UnicodeDecodeError':
2955
raise UnicodeDecodeError(encoding, val, start, end, reason)
2956
elif err.error_verb == 'UnicodeEncodeError':
2957
raise UnicodeEncodeError(encoding, val, start, end, reason)
2958
elif err.error_verb == 'ReadOnlyError':
2959
raise errors.TransportNotPossible('readonly transport')
2960
raise errors.UnknownErrorFromSmartServer(err)
added
removed
bzrlib/remote.py
