1
# Copyright (C) 2006, 2007, 2008 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
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.
33
from bzrlib.branch import BranchReferenceFormat
34
from bzrlib.bzrdir import BzrDir, RemoteBzrDirFormat
35
from bzrlib.decorators import needs_read_lock, needs_write_lock
36
from bzrlib.errors import (
40
from bzrlib.lockable_files import LockableFiles
41
from bzrlib.smart import client, vfs
42
from bzrlib.revision import ensure_null, NULL_REVISION
43
from bzrlib.trace import mutter, note, warning
46
class _RpcHelper(object):
47
"""Mixin class that helps with issuing RPCs."""
49
def _call(self, method, *args, **err_context):
51
return self._client.call(method, *args)
52
except errors.ErrorFromSmartServer, err:
53
self._translate_error(err, **err_context)
55
def _call_expecting_body(self, method, *args, **err_context):
57
return self._client.call_expecting_body(method, *args)
58
except errors.ErrorFromSmartServer, err:
59
self._translate_error(err, **err_context)
61
def _call_with_body_bytes_expecting_body(self, method, args, body_bytes,
64
return self._client.call_with_body_bytes_expecting_body(
65
method, args, body_bytes)
66
except errors.ErrorFromSmartServer, err:
67
self._translate_error(err, **err_context)
69
# Note: RemoteBzrDirFormat is in bzrdir.py
71
class RemoteBzrDir(BzrDir, _RpcHelper):
72
"""Control directory on a remote server, accessed via bzr:// or similar."""
74
def __init__(self, transport, _client=None):
75
"""Construct a RemoteBzrDir.
77
:param _client: Private parameter for testing. Disables probing and the
80
BzrDir.__init__(self, transport, RemoteBzrDirFormat())
81
# this object holds a delegated bzrdir that uses file-level operations
82
# to talk to the other side
83
self._real_bzrdir = None
86
medium = transport.get_smart_medium()
87
self._client = client._SmartClient(medium)
89
self._client = _client
92
path = self._path_for_remote_call(self._client)
93
response = self._call('BzrDir.open', path)
94
if response not in [('yes',), ('no',)]:
95
raise errors.UnexpectedSmartServerResponse(response)
96
if response == ('no',):
97
raise errors.NotBranchError(path=transport.base)
99
def _ensure_real(self):
100
"""Ensure that there is a _real_bzrdir set.
102
Used before calls to self._real_bzrdir.
104
if not self._real_bzrdir:
105
self._real_bzrdir = BzrDir.open_from_transport(
106
self.root_transport, _server_formats=False)
108
def _translate_error(self, err, **context):
109
_translate_error(err, bzrdir=self, **context)
111
def cloning_metadir(self, stacked=False):
113
return self._real_bzrdir.cloning_metadir(stacked)
115
def create_repository(self, shared=False):
117
self._real_bzrdir.create_repository(shared=shared)
118
return self.open_repository()
120
def destroy_repository(self):
121
"""See BzrDir.destroy_repository"""
123
self._real_bzrdir.destroy_repository()
125
def create_branch(self):
127
real_branch = self._real_bzrdir.create_branch()
128
return RemoteBranch(self, self.find_repository(), real_branch)
130
def destroy_branch(self):
131
"""See BzrDir.destroy_branch"""
133
self._real_bzrdir.destroy_branch()
135
def create_workingtree(self, revision_id=None, from_branch=None):
136
raise errors.NotLocalUrl(self.transport.base)
138
def find_branch_format(self):
139
"""Find the branch 'format' for this bzrdir.
141
This might be a synthetic object for e.g. RemoteBranch and SVN.
143
b = self.open_branch()
146
def get_branch_reference(self):
147
"""See BzrDir.get_branch_reference()."""
148
path = self._path_for_remote_call(self._client)
149
response = self._call('BzrDir.open_branch', path)
150
if response[0] == 'ok':
151
if response[1] == '':
152
# branch at this location.
155
# a branch reference, use the existing BranchReference logic.
158
raise errors.UnexpectedSmartServerResponse(response)
160
def _get_tree_branch(self):
161
"""See BzrDir._get_tree_branch()."""
162
return None, self.open_branch()
164
def open_branch(self, _unsupported=False):
166
raise NotImplementedError('unsupported flag support not implemented yet.')
167
reference_url = self.get_branch_reference()
168
if reference_url is None:
169
# branch at this location.
170
return RemoteBranch(self, self.find_repository())
172
# a branch reference, use the existing BranchReference logic.
173
format = BranchReferenceFormat()
174
return format.open(self, _found=True, location=reference_url)
176
def open_repository(self):
177
path = self._path_for_remote_call(self._client)
178
verb = 'BzrDir.find_repositoryV2'
180
response = self._call(verb, path)
181
except errors.UnknownSmartMethod:
182
verb = 'BzrDir.find_repository'
183
response = self._call(verb, path)
184
if response[0] != 'ok':
185
raise errors.UnexpectedSmartServerResponse(response)
186
if verb == 'BzrDir.find_repository':
187
# servers that don't support the V2 method don't support external
189
response = response + ('no', )
190
if not (len(response) == 5):
191
raise SmartProtocolError('incorrect response length %s' % (response,))
192
if response[1] == '':
193
format = RemoteRepositoryFormat()
194
format.rich_root_data = (response[2] == 'yes')
195
format.supports_tree_reference = (response[3] == 'yes')
196
# No wire format to check this yet.
197
format.supports_external_lookups = (response[4] == 'yes')
198
# Used to support creating a real format instance when needed.
199
format._creating_bzrdir = self
200
return RemoteRepository(self, format)
202
raise errors.NoRepositoryPresent(self)
204
def open_workingtree(self, recommend_upgrade=True):
206
if self._real_bzrdir.has_workingtree():
207
raise errors.NotLocalUrl(self.root_transport)
209
raise errors.NoWorkingTree(self.root_transport.base)
211
def _path_for_remote_call(self, client):
212
"""Return the path to be used for this bzrdir in a remote call."""
213
return client.remote_path_from_transport(self.root_transport)
215
def get_branch_transport(self, branch_format):
217
return self._real_bzrdir.get_branch_transport(branch_format)
219
def get_repository_transport(self, repository_format):
221
return self._real_bzrdir.get_repository_transport(repository_format)
223
def get_workingtree_transport(self, workingtree_format):
225
return self._real_bzrdir.get_workingtree_transport(workingtree_format)
227
def can_convert_format(self):
228
"""Upgrading of remote bzrdirs is not supported yet."""
231
def needs_format_conversion(self, format=None):
232
"""Upgrading of remote bzrdirs is not supported yet."""
235
def clone(self, url, revision_id=None, force_new_repo=False,
236
preserve_stacking=False):
238
return self._real_bzrdir.clone(url, revision_id=revision_id,
239
force_new_repo=force_new_repo, preserve_stacking=preserve_stacking)
241
def get_config(self):
243
return self._real_bzrdir.get_config()
246
class RemoteRepositoryFormat(repository.RepositoryFormat):
247
"""Format for repositories accessed over a _SmartClient.
249
Instances of this repository are represented by RemoteRepository
252
The RemoteRepositoryFormat is parameterized during construction
253
to reflect the capabilities of the real, remote format. Specifically
254
the attributes rich_root_data and supports_tree_reference are set
255
on a per instance basis, and are not set (and should not be) at
259
_matchingbzrdir = RemoteBzrDirFormat()
261
def initialize(self, a_bzrdir, shared=False):
262
if not isinstance(a_bzrdir, RemoteBzrDir):
263
prior_repo = self._creating_bzrdir.open_repository()
264
prior_repo._ensure_real()
265
return prior_repo._real_repository._format.initialize(
266
a_bzrdir, shared=shared)
267
return a_bzrdir.create_repository(shared=shared)
269
def open(self, a_bzrdir):
270
if not isinstance(a_bzrdir, RemoteBzrDir):
271
raise AssertionError('%r is not a RemoteBzrDir' % (a_bzrdir,))
272
return a_bzrdir.open_repository()
274
def get_format_description(self):
275
return 'bzr remote repository'
277
def __eq__(self, other):
278
return self.__class__ == other.__class__
280
def check_conversion_target(self, target_format):
281
if self.rich_root_data and not target_format.rich_root_data:
282
raise errors.BadConversionTarget(
283
'Does not support rich root data.', target_format)
284
if (self.supports_tree_reference and
285
not getattr(target_format, 'supports_tree_reference', False)):
286
raise errors.BadConversionTarget(
287
'Does not support nested trees', target_format)
290
class _UnstackedParentsProvider(object):
291
"""ParentsProvider for RemoteRepository that ignores stacking."""
293
def __init__(self, remote_repository):
294
self._remote_repository = remote_repository
296
def get_parent_map(self, revision_ids):
297
"""See RemoteRepository.get_parent_map."""
298
return self._remote_repository._get_parent_map(revision_ids)
301
class RemoteRepository(_RpcHelper):
302
"""Repository accessed over rpc.
304
For the moment most operations are performed using local transport-backed
308
def __init__(self, remote_bzrdir, format, real_repository=None, _client=None):
309
"""Create a RemoteRepository instance.
311
:param remote_bzrdir: The bzrdir hosting this repository.
312
:param format: The RemoteFormat object to use.
313
:param real_repository: If not None, a local implementation of the
314
repository logic for the repository, usually accessing the data
316
:param _client: Private testing parameter - override the smart client
317
to be used by the repository.
320
self._real_repository = real_repository
322
self._real_repository = None
323
self.bzrdir = remote_bzrdir
325
self._client = remote_bzrdir._client
327
self._client = _client
328
self._format = format
329
self._lock_mode = None
330
self._lock_token = None
332
self._leave_lock = False
333
# A cache of looked up revision parent data; reset at unlock time.
334
self._parents_map = None
335
if 'hpss' in debug.debug_flags:
336
self._requested_parents = None
338
# These depend on the actual remote format, so force them off for
339
# maximum compatibility. XXX: In future these should depend on the
340
# remote repository instance, but this is irrelevant until we perform
341
# reconcile via an RPC call.
342
self._reconcile_does_inventory_gc = False
343
self._reconcile_fixes_text_parents = False
344
self._reconcile_backsup_inventory = False
345
self.base = self.bzrdir.transport.base
346
# Additional places to query for data.
347
self._fallback_repositories = []
350
return "%s(%s)" % (self.__class__.__name__, self.base)
354
def abort_write_group(self, suppress_errors=False):
355
"""Complete a write group on the decorated repository.
357
Smart methods peform operations in a single step so this api
358
is not really applicable except as a compatibility thunk
359
for older plugins that don't use e.g. the CommitBuilder
362
:param suppress_errors: see Repository.abort_write_group.
365
return self._real_repository.abort_write_group(
366
suppress_errors=suppress_errors)
368
def commit_write_group(self):
369
"""Complete a write group on the decorated repository.
371
Smart methods peform operations in a single step so this api
372
is not really applicable except as a compatibility thunk
373
for older plugins that don't use e.g. the CommitBuilder
377
return self._real_repository.commit_write_group()
379
def _ensure_real(self):
380
"""Ensure that there is a _real_repository set.
382
Used before calls to self._real_repository.
384
if self._real_repository is None:
385
self.bzrdir._ensure_real()
386
self._set_real_repository(
387
self.bzrdir._real_bzrdir.open_repository())
389
def _translate_error(self, err, **context):
390
self.bzrdir._translate_error(err, repository=self, **context)
392
def find_text_key_references(self):
393
"""Find the text key references within the repository.
395
:return: a dictionary mapping (file_id, revision_id) tuples to altered file-ids to an iterable of
396
revision_ids. Each altered file-ids has the exact revision_ids that
397
altered it listed explicitly.
398
:return: A dictionary mapping text keys ((fileid, revision_id) tuples)
399
to whether they were referred to by the inventory of the
400
revision_id that they contain. The inventory texts from all present
401
revision ids are assessed to generate this report.
404
return self._real_repository.find_text_key_references()
406
def _generate_text_key_index(self):
407
"""Generate a new text key index for the repository.
409
This is an expensive function that will take considerable time to run.
411
:return: A dict mapping (file_id, revision_id) tuples to a list of
412
parents, also (file_id, revision_id) tuples.
415
return self._real_repository._generate_text_key_index()
417
@symbol_versioning.deprecated_method(symbol_versioning.one_four)
418
def get_revision_graph(self, revision_id=None):
419
"""See Repository.get_revision_graph()."""
420
return self._get_revision_graph(revision_id)
422
def _get_revision_graph(self, revision_id):
423
"""Private method for using with old (< 1.2) servers to fallback."""
424
if revision_id is None:
426
elif revision.is_null(revision_id):
429
path = self.bzrdir._path_for_remote_call(self._client)
430
response = self._call_expecting_body(
431
'Repository.get_revision_graph', path, revision_id)
432
response_tuple, response_handler = response
433
if response_tuple[0] != 'ok':
434
raise errors.UnexpectedSmartServerResponse(response_tuple)
435
coded = response_handler.read_body_bytes()
437
# no revisions in this repository!
439
lines = coded.split('\n')
442
d = tuple(line.split())
443
revision_graph[d[0]] = d[1:]
445
return revision_graph
447
def has_revision(self, revision_id):
448
"""See Repository.has_revision()."""
449
if revision_id == NULL_REVISION:
450
# The null revision is always present.
452
path = self.bzrdir._path_for_remote_call(self._client)
453
response = self._call('Repository.has_revision', path, revision_id)
454
if response[0] not in ('yes', 'no'):
455
raise errors.UnexpectedSmartServerResponse(response)
456
if response[0] == 'yes':
458
for fallback_repo in self._fallback_repositories:
459
if fallback_repo.has_revision(revision_id):
463
def has_revisions(self, revision_ids):
464
"""See Repository.has_revisions()."""
465
# FIXME: This does many roundtrips, particularly when there are
466
# fallback repositories. -- mbp 20080905
468
for revision_id in revision_ids:
469
if self.has_revision(revision_id):
470
result.add(revision_id)
473
def has_same_location(self, other):
474
return (self.__class__ == other.__class__ and
475
self.bzrdir.transport.base == other.bzrdir.transport.base)
477
def get_graph(self, other_repository=None):
478
"""Return the graph for this repository format"""
479
parents_provider = self._make_parents_provider()
480
if (other_repository is not None and
481
other_repository.bzrdir.transport.base !=
482
self.bzrdir.transport.base):
483
parents_provider = graph._StackedParentsProvider(
484
[parents_provider, other_repository._make_parents_provider()])
485
return graph.Graph(parents_provider)
487
def gather_stats(self, revid=None, committers=None):
488
"""See Repository.gather_stats()."""
489
path = self.bzrdir._path_for_remote_call(self._client)
490
# revid can be None to indicate no revisions, not just NULL_REVISION
491
if revid is None or revision.is_null(revid):
495
if committers is None or not committers:
496
fmt_committers = 'no'
498
fmt_committers = 'yes'
499
response_tuple, response_handler = self._call_expecting_body(
500
'Repository.gather_stats', path, fmt_revid, fmt_committers)
501
if response_tuple[0] != 'ok':
502
raise errors.UnexpectedSmartServerResponse(response_tuple)
504
body = response_handler.read_body_bytes()
506
for line in body.split('\n'):
509
key, val_text = line.split(':')
510
if key in ('revisions', 'size', 'committers'):
511
result[key] = int(val_text)
512
elif key in ('firstrev', 'latestrev'):
513
values = val_text.split(' ')[1:]
514
result[key] = (float(values[0]), long(values[1]))
518
def find_branches(self, using=False):
519
"""See Repository.find_branches()."""
520
# should be an API call to the server.
522
return self._real_repository.find_branches(using=using)
524
def get_physical_lock_status(self):
525
"""See Repository.get_physical_lock_status()."""
526
# should be an API call to the server.
528
return self._real_repository.get_physical_lock_status()
530
def is_in_write_group(self):
531
"""Return True if there is an open write group.
533
write groups are only applicable locally for the smart server..
535
if self._real_repository:
536
return self._real_repository.is_in_write_group()
539
return self._lock_count >= 1
542
"""See Repository.is_shared()."""
543
path = self.bzrdir._path_for_remote_call(self._client)
544
response = self._call('Repository.is_shared', path)
545
if response[0] not in ('yes', 'no'):
546
raise SmartProtocolError('unexpected response code %s' % (response,))
547
return response[0] == 'yes'
549
def is_write_locked(self):
550
return self._lock_mode == 'w'
553
# wrong eventually - want a local lock cache context
554
if not self._lock_mode:
555
self._lock_mode = 'r'
557
self._parents_map = {}
558
if 'hpss' in debug.debug_flags:
559
self._requested_parents = set()
560
if self._real_repository is not None:
561
self._real_repository.lock_read()
563
self._lock_count += 1
565
def _remote_lock_write(self, token):
566
path = self.bzrdir._path_for_remote_call(self._client)
569
err_context = {'token': token}
570
response = self._call('Repository.lock_write', path, token,
572
if response[0] == 'ok':
576
raise errors.UnexpectedSmartServerResponse(response)
578
def lock_write(self, token=None, _skip_rpc=False):
579
if not self._lock_mode:
581
if self._lock_token is not None:
582
if token != self._lock_token:
583
raise errors.TokenMismatch(token, self._lock_token)
584
self._lock_token = token
586
self._lock_token = self._remote_lock_write(token)
587
# if self._lock_token is None, then this is something like packs or
588
# svn where we don't get to lock the repo, or a weave style repository
589
# where we cannot lock it over the wire and attempts to do so will
591
if self._real_repository is not None:
592
self._real_repository.lock_write(token=self._lock_token)
593
if token is not None:
594
self._leave_lock = True
596
self._leave_lock = False
597
self._lock_mode = 'w'
599
self._parents_map = {}
600
if 'hpss' in debug.debug_flags:
601
self._requested_parents = set()
602
elif self._lock_mode == 'r':
603
raise errors.ReadOnlyError(self)
605
self._lock_count += 1
606
return self._lock_token or None
608
def leave_lock_in_place(self):
609
if not self._lock_token:
610
raise NotImplementedError(self.leave_lock_in_place)
611
self._leave_lock = True
613
def dont_leave_lock_in_place(self):
614
if not self._lock_token:
615
raise NotImplementedError(self.dont_leave_lock_in_place)
616
self._leave_lock = False
618
def _set_real_repository(self, repository):
619
"""Set the _real_repository for this repository.
621
:param repository: The repository to fallback to for non-hpss
622
implemented operations.
624
if self._real_repository is not None:
625
raise AssertionError('_real_repository is already set')
626
if isinstance(repository, RemoteRepository):
627
raise AssertionError()
628
self._real_repository = repository
629
for fb in self._fallback_repositories:
630
self._real_repository.add_fallback_repository(fb)
631
if self._lock_mode == 'w':
632
# if we are already locked, the real repository must be able to
633
# acquire the lock with our token.
634
self._real_repository.lock_write(self._lock_token)
635
elif self._lock_mode == 'r':
636
self._real_repository.lock_read()
638
def start_write_group(self):
639
"""Start a write group on the decorated repository.
641
Smart methods peform operations in a single step so this api
642
is not really applicable except as a compatibility thunk
643
for older plugins that don't use e.g. the CommitBuilder
647
return self._real_repository.start_write_group()
649
def _unlock(self, token):
650
path = self.bzrdir._path_for_remote_call(self._client)
652
# with no token the remote repository is not persistently locked.
654
err_context = {'token': token}
655
response = self._call('Repository.unlock', path, token,
657
if response == ('ok',):
660
raise errors.UnexpectedSmartServerResponse(response)
663
self._lock_count -= 1
664
if self._lock_count > 0:
666
self._parents_map = None
667
if 'hpss' in debug.debug_flags:
668
self._requested_parents = None
669
old_mode = self._lock_mode
670
self._lock_mode = None
672
# The real repository is responsible at present for raising an
673
# exception if it's in an unfinished write group. However, it
674
# normally will *not* actually remove the lock from disk - that's
675
# done by the server on receiving the Repository.unlock call.
676
# This is just to let the _real_repository stay up to date.
677
if self._real_repository is not None:
678
self._real_repository.unlock()
680
# The rpc-level lock should be released even if there was a
681
# problem releasing the vfs-based lock.
683
# Only write-locked repositories need to make a remote method
684
# call to perfom the unlock.
685
old_token = self._lock_token
686
self._lock_token = None
687
if not self._leave_lock:
688
self._unlock(old_token)
690
def break_lock(self):
691
# should hand off to the network
693
return self._real_repository.break_lock()
695
def _get_tarball(self, compression):
696
"""Return a TemporaryFile containing a repository tarball.
698
Returns None if the server does not support sending tarballs.
701
path = self.bzrdir._path_for_remote_call(self._client)
703
response, protocol = self._call_expecting_body(
704
'Repository.tarball', path, compression)
705
except errors.UnknownSmartMethod:
706
protocol.cancel_read_body()
708
if response[0] == 'ok':
709
# Extract the tarball and return it
710
t = tempfile.NamedTemporaryFile()
711
# TODO: rpc layer should read directly into it...
712
t.write(protocol.read_body_bytes())
715
raise errors.UnexpectedSmartServerResponse(response)
717
def sprout(self, to_bzrdir, revision_id=None):
718
# TODO: Option to control what format is created?
720
dest_repo = self._real_repository._format.initialize(to_bzrdir,
722
dest_repo.fetch(self, revision_id=revision_id)
725
### These methods are just thin shims to the VFS object for now.
727
def revision_tree(self, revision_id):
729
return self._real_repository.revision_tree(revision_id)
731
def get_serializer_format(self):
733
return self._real_repository.get_serializer_format()
735
def get_commit_builder(self, branch, parents, config, timestamp=None,
736
timezone=None, committer=None, revprops=None,
738
# FIXME: It ought to be possible to call this without immediately
739
# triggering _ensure_real. For now it's the easiest thing to do.
741
real_repo = self._real_repository
742
builder = real_repo.get_commit_builder(branch, parents,
743
config, timestamp=timestamp, timezone=timezone,
744
committer=committer, revprops=revprops, revision_id=revision_id)
747
def add_fallback_repository(self, repository):
748
"""Add a repository to use for looking up data not held locally.
750
:param repository: A repository.
752
# XXX: At the moment the RemoteRepository will allow fallbacks
753
# unconditionally - however, a _real_repository will usually exist,
754
# and may raise an error if it's not accommodated by the underlying
755
# format. Eventually we should check when opening the repository
756
# whether it's willing to allow them or not.
758
# We need to accumulate additional repositories here, to pass them in
760
self._fallback_repositories.append(repository)
761
# They are also seen by the fallback repository. If it doesn't exist
762
# yet they'll be added then. This implicitly copies them.
765
def add_inventory(self, revid, inv, parents):
767
return self._real_repository.add_inventory(revid, inv, parents)
769
def add_revision(self, rev_id, rev, inv=None, config=None):
771
return self._real_repository.add_revision(
772
rev_id, rev, inv=inv, config=config)
775
def get_inventory(self, revision_id):
777
return self._real_repository.get_inventory(revision_id)
779
def iter_inventories(self, revision_ids):
781
return self._real_repository.iter_inventories(revision_ids)
784
def get_revision(self, revision_id):
786
return self._real_repository.get_revision(revision_id)
788
def get_transaction(self):
790
return self._real_repository.get_transaction()
793
def clone(self, a_bzrdir, revision_id=None):
795
return self._real_repository.clone(a_bzrdir, revision_id=revision_id)
797
def make_working_trees(self):
798
"""See Repository.make_working_trees"""
800
return self._real_repository.make_working_trees()
802
def revision_ids_to_search_result(self, result_set):
803
"""Convert a set of revision ids to a graph SearchResult."""
804
result_parents = set()
805
for parents in self.get_graph().get_parent_map(
806
result_set).itervalues():
807
result_parents.update(parents)
808
included_keys = result_set.intersection(result_parents)
809
start_keys = result_set.difference(included_keys)
810
exclude_keys = result_parents.difference(result_set)
811
result = graph.SearchResult(start_keys, exclude_keys,
812
len(result_set), result_set)
816
def search_missing_revision_ids(self, other, revision_id=None, find_ghosts=True):
817
"""Return the revision ids that other has that this does not.
819
These are returned in topological order.
821
revision_id: only return revision ids included by revision_id.
823
return repository.InterRepository.get(
824
other, self).search_missing_revision_ids(revision_id, find_ghosts)
826
def fetch(self, source, revision_id=None, pb=None, find_ghosts=False):
827
# Not delegated to _real_repository so that InterRepository.get has a
828
# chance to find an InterRepository specialised for RemoteRepository.
829
if self.has_same_location(source):
830
# check that last_revision is in 'from' and then return a
832
if (revision_id is not None and
833
not revision.is_null(revision_id)):
834
self.get_revision(revision_id)
836
inter = repository.InterRepository.get(source, self)
838
return inter.fetch(revision_id=revision_id, pb=pb, find_ghosts=find_ghosts)
839
except NotImplementedError:
840
raise errors.IncompatibleRepositories(source, self)
842
def create_bundle(self, target, base, fileobj, format=None):
844
self._real_repository.create_bundle(target, base, fileobj, format)
847
def get_ancestry(self, revision_id, topo_sorted=True):
849
return self._real_repository.get_ancestry(revision_id, topo_sorted)
851
def fileids_altered_by_revision_ids(self, revision_ids):
853
return self._real_repository.fileids_altered_by_revision_ids(revision_ids)
855
def _get_versioned_file_checker(self, revisions, revision_versions_cache):
857
return self._real_repository._get_versioned_file_checker(
858
revisions, revision_versions_cache)
860
def iter_files_bytes(self, desired_files):
861
"""See Repository.iter_file_bytes.
864
return self._real_repository.iter_files_bytes(desired_files)
867
def _fetch_order(self):
868
"""Decorate the real repository for now.
870
In the long term getting this back from the remote repository as part
871
of open would be more efficient.
874
return self._real_repository._fetch_order
877
def _fetch_uses_deltas(self):
878
"""Decorate the real repository for now.
880
In the long term getting this back from the remote repository as part
881
of open would be more efficient.
884
return self._real_repository._fetch_uses_deltas
887
def _fetch_reconcile(self):
888
"""Decorate the real repository for now.
890
In the long term getting this back from the remote repository as part
891
of open would be more efficient.
894
return self._real_repository._fetch_reconcile
896
def get_parent_map(self, revision_ids):
897
"""See bzrlib.Graph.get_parent_map()."""
898
return self._make_parents_provider().get_parent_map(revision_ids)
900
def _get_parent_map(self, keys):
901
"""Implementation of get_parent_map() that ignores fallbacks."""
902
# Hack to build up the caching logic.
903
ancestry = self._parents_map
905
# Repository is not locked, so there's no cache.
906
missing_revisions = set(keys)
909
missing_revisions = set(key for key in keys if key not in ancestry)
910
if missing_revisions:
911
parent_map = self._get_parent_map_rpc(missing_revisions)
912
if 'hpss' in debug.debug_flags:
913
mutter('retransmitted revisions: %d of %d',
914
len(set(ancestry).intersection(parent_map)),
916
ancestry.update(parent_map)
917
present_keys = [k for k in keys if k in ancestry]
918
if 'hpss' in debug.debug_flags:
919
if self._requested_parents is not None and len(ancestry) != 0:
920
self._requested_parents.update(present_keys)
921
mutter('Current RemoteRepository graph hit rate: %d%%',
922
100.0 * len(self._requested_parents) / len(ancestry))
923
return dict((k, ancestry[k]) for k in present_keys)
925
def _get_parent_map_rpc(self, keys):
926
"""Helper for get_parent_map that performs the RPC."""
927
medium = self._client._medium
928
if medium._is_remote_before((1, 2)):
929
# We already found out that the server can't understand
930
# Repository.get_parent_map requests, so just fetch the whole
932
# XXX: Note that this will issue a deprecation warning. This is ok
933
# :- its because we're working with a deprecated server anyway, and
934
# the user will almost certainly have seen a warning about the
935
# server version already.
936
rg = self.get_revision_graph()
937
# There is an api discrepency between get_parent_map and
938
# get_revision_graph. Specifically, a "key:()" pair in
939
# get_revision_graph just means a node has no parents. For
940
# "get_parent_map" it means the node is a ghost. So fix up the
941
# graph to correct this.
942
# https://bugs.launchpad.net/bzr/+bug/214894
943
# There is one other "bug" which is that ghosts in
944
# get_revision_graph() are not returned at all. But we won't worry
945
# about that for now.
946
for node_id, parent_ids in rg.iteritems():
948
rg[node_id] = (NULL_REVISION,)
949
rg[NULL_REVISION] = ()
954
raise ValueError('get_parent_map(None) is not valid')
955
if NULL_REVISION in keys:
956
keys.discard(NULL_REVISION)
957
found_parents = {NULL_REVISION:()}
962
# TODO(Needs analysis): We could assume that the keys being requested
963
# from get_parent_map are in a breadth first search, so typically they
964
# will all be depth N from some common parent, and we don't have to
965
# have the server iterate from the root parent, but rather from the
966
# keys we're searching; and just tell the server the keyspace we
967
# already have; but this may be more traffic again.
969
# Transform self._parents_map into a search request recipe.
970
# TODO: Manage this incrementally to avoid covering the same path
971
# repeatedly. (The server will have to on each request, but the less
972
# work done the better).
973
parents_map = self._parents_map
974
if parents_map is None:
975
# Repository is not locked, so there's no cache.
977
start_set = set(parents_map)
978
result_parents = set()
979
for parents in parents_map.itervalues():
980
result_parents.update(parents)
981
stop_keys = result_parents.difference(start_set)
982
included_keys = start_set.intersection(result_parents)
983
start_set.difference_update(included_keys)
984
recipe = (start_set, stop_keys, len(parents_map))
985
body = self._serialise_search_recipe(recipe)
986
path = self.bzrdir._path_for_remote_call(self._client)
988
if type(key) is not str:
990
"key %r not a plain string" % (key,))
991
verb = 'Repository.get_parent_map'
992
args = (path,) + tuple(keys)
994
response = self._call_with_body_bytes_expecting_body(
996
except errors.UnknownSmartMethod:
997
# Server does not support this method, so get the whole graph.
998
# Worse, we have to force a disconnection, because the server now
999
# doesn't realise it has a body on the wire to consume, so the
1000
# only way to recover is to abandon the connection.
1002
'Server is too old for fast get_parent_map, reconnecting. '
1003
'(Upgrade the server to Bazaar 1.2 to avoid this)')
1005
# To avoid having to disconnect repeatedly, we keep track of the
1006
# fact the server doesn't understand remote methods added in 1.2.
1007
medium._remember_remote_is_before((1, 2))
1008
return self.get_revision_graph(None)
1009
response_tuple, response_handler = response
1010
if response_tuple[0] not in ['ok']:
1011
response_handler.cancel_read_body()
1012
raise errors.UnexpectedSmartServerResponse(response_tuple)
1013
if response_tuple[0] == 'ok':
1014
coded = bz2.decompress(response_handler.read_body_bytes())
1016
# no revisions found
1018
lines = coded.split('\n')
1021
d = tuple(line.split())
1023
revision_graph[d[0]] = d[1:]
1025
# No parents - so give the Graph result (NULL_REVISION,).
1026
revision_graph[d[0]] = (NULL_REVISION,)
1027
return revision_graph
1030
def get_signature_text(self, revision_id):
1032
return self._real_repository.get_signature_text(revision_id)
1035
@symbol_versioning.deprecated_method(symbol_versioning.one_three)
1036
def get_revision_graph_with_ghosts(self, revision_ids=None):
1038
return self._real_repository.get_revision_graph_with_ghosts(
1039
revision_ids=revision_ids)
1042
def get_inventory_xml(self, revision_id):
1044
return self._real_repository.get_inventory_xml(revision_id)
1046
def deserialise_inventory(self, revision_id, xml):
1048
return self._real_repository.deserialise_inventory(revision_id, xml)
1050
def reconcile(self, other=None, thorough=False):
1052
return self._real_repository.reconcile(other=other, thorough=thorough)
1054
def all_revision_ids(self):
1056
return self._real_repository.all_revision_ids()
1059
def get_deltas_for_revisions(self, revisions):
1061
return self._real_repository.get_deltas_for_revisions(revisions)
1064
def get_revision_delta(self, revision_id):
1066
return self._real_repository.get_revision_delta(revision_id)
1069
def revision_trees(self, revision_ids):
1071
return self._real_repository.revision_trees(revision_ids)
1074
def get_revision_reconcile(self, revision_id):
1076
return self._real_repository.get_revision_reconcile(revision_id)
1079
def check(self, revision_ids=None):
1081
return self._real_repository.check(revision_ids=revision_ids)
1083
def copy_content_into(self, destination, revision_id=None):
1085
return self._real_repository.copy_content_into(
1086
destination, revision_id=revision_id)
1088
def _copy_repository_tarball(self, to_bzrdir, revision_id=None):
1089
# get a tarball of the remote repository, and copy from that into the
1091
from bzrlib import osutils
1093
# TODO: Maybe a progress bar while streaming the tarball?
1094
note("Copying repository content as tarball...")
1095
tar_file = self._get_tarball('bz2')
1096
if tar_file is None:
1098
destination = to_bzrdir.create_repository()
1100
tar = tarfile.open('repository', fileobj=tar_file,
1102
tmpdir = osutils.mkdtemp()
1104
_extract_tar(tar, tmpdir)
1105
tmp_bzrdir = BzrDir.open(tmpdir)
1106
tmp_repo = tmp_bzrdir.open_repository()
1107
tmp_repo.copy_content_into(destination, revision_id)
1109
osutils.rmtree(tmpdir)
1113
# TODO: Suggestion from john: using external tar is much faster than
1114
# python's tarfile library, but it may not work on windows.
1117
def inventories(self):
1118
"""Decorate the real repository for now.
1120
In the long term a full blown network facility is needed to
1121
avoid creating a real repository object locally.
1124
return self._real_repository.inventories
1128
"""Compress the data within the repository.
1130
This is not currently implemented within the smart server.
1133
return self._real_repository.pack()
1136
def revisions(self):
1137
"""Decorate the real repository for now.
1139
In the short term this should become a real object to intercept graph
1142
In the long term a full blown network facility is needed.
1145
return self._real_repository.revisions
1147
def set_make_working_trees(self, new_value):
1149
self._real_repository.set_make_working_trees(new_value)
1152
def signatures(self):
1153
"""Decorate the real repository for now.
1155
In the long term a full blown network facility is needed to avoid
1156
creating a real repository object locally.
1159
return self._real_repository.signatures
1162
def sign_revision(self, revision_id, gpg_strategy):
1164
return self._real_repository.sign_revision(revision_id, gpg_strategy)
1168
"""Decorate the real repository for now.
1170
In the long term a full blown network facility is needed to avoid
1171
creating a real repository object locally.
1174
return self._real_repository.texts
1177
def get_revisions(self, revision_ids):
1179
return self._real_repository.get_revisions(revision_ids)
1181
def supports_rich_root(self):
1183
return self._real_repository.supports_rich_root()
1185
def iter_reverse_revision_history(self, revision_id):
1187
return self._real_repository.iter_reverse_revision_history(revision_id)
1190
def _serializer(self):
1192
return self._real_repository._serializer
1194
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1196
return self._real_repository.store_revision_signature(
1197
gpg_strategy, plaintext, revision_id)
1199
def add_signature_text(self, revision_id, signature):
1201
return self._real_repository.add_signature_text(revision_id, signature)
1203
def has_signature_for_revision_id(self, revision_id):
1205
return self._real_repository.has_signature_for_revision_id(revision_id)
1207
def item_keys_introduced_by(self, revision_ids, _files_pb=None):
1209
return self._real_repository.item_keys_introduced_by(revision_ids,
1210
_files_pb=_files_pb)
1212
def revision_graph_can_have_wrong_parents(self):
1213
# The answer depends on the remote repo format.
1215
return self._real_repository.revision_graph_can_have_wrong_parents()
1217
def _find_inconsistent_revision_parents(self):
1219
return self._real_repository._find_inconsistent_revision_parents()
1221
def _check_for_inconsistent_revision_parents(self):
1223
return self._real_repository._check_for_inconsistent_revision_parents()
1225
def _make_parents_provider(self):
1226
providers = [_UnstackedParentsProvider(self)]
1227
providers.extend(r._make_parents_provider() for r in
1228
self._fallback_repositories)
1229
return graph._StackedParentsProvider(providers)
1231
def _serialise_search_recipe(self, recipe):
1232
"""Serialise a graph search recipe.
1234
:param recipe: A search recipe (start, stop, count).
1235
:return: Serialised bytes.
1237
start_keys = ' '.join(recipe[0])
1238
stop_keys = ' '.join(recipe[1])
1239
count = str(recipe[2])
1240
return '\n'.join((start_keys, stop_keys, count))
1243
path = self.bzrdir._path_for_remote_call(self._client)
1245
response = self._call('PackRepository.autopack', path)
1246
except errors.UnknownSmartMethod:
1248
self._real_repository._pack_collection.autopack()
1250
if self._real_repository is not None:
1251
# Reset the real repository's cache of pack names.
1252
# XXX: At some point we may be able to skip this and just rely on
1253
# the automatic retry logic to do the right thing, but for now we
1254
# err on the side of being correct rather than being optimal.
1255
self._real_repository._pack_collection.reload_pack_names()
1256
if response[0] != 'ok':
1257
raise errors.UnexpectedSmartServerResponse(response)
1260
class RemoteBranchLockableFiles(LockableFiles):
1261
"""A 'LockableFiles' implementation that talks to a smart server.
1263
This is not a public interface class.
1266
def __init__(self, bzrdir, _client):
1267
self.bzrdir = bzrdir
1268
self._client = _client
1269
self._need_find_modes = True
1270
LockableFiles.__init__(
1271
self, bzrdir.get_branch_transport(None),
1272
'lock', lockdir.LockDir)
1274
def _find_modes(self):
1275
# RemoteBranches don't let the client set the mode of control files.
1276
self._dir_mode = None
1277
self._file_mode = None
1280
class RemoteBranchFormat(branch.BranchFormat):
1282
def __eq__(self, other):
1283
return (isinstance(other, RemoteBranchFormat) and
1284
self.__dict__ == other.__dict__)
1286
def get_format_description(self):
1287
return 'Remote BZR Branch'
1289
def get_format_string(self):
1290
return 'Remote BZR Branch'
1292
def open(self, a_bzrdir):
1293
return a_bzrdir.open_branch()
1295
def initialize(self, a_bzrdir):
1296
return a_bzrdir.create_branch()
1298
def supports_tags(self):
1299
# Remote branches might support tags, but we won't know until we
1300
# access the real remote branch.
1304
class RemoteBranch(branch.Branch, _RpcHelper):
1305
"""Branch stored on a server accessed by HPSS RPC.
1307
At the moment most operations are mapped down to simple file operations.
1310
def __init__(self, remote_bzrdir, remote_repository, real_branch=None,
1312
"""Create a RemoteBranch instance.
1314
:param real_branch: An optional local implementation of the branch
1315
format, usually accessing the data via the VFS.
1316
:param _client: Private parameter for testing.
1318
# We intentionally don't call the parent class's __init__, because it
1319
# will try to assign to self.tags, which is a property in this subclass.
1320
# And the parent's __init__ doesn't do much anyway.
1321
self._revision_id_to_revno_cache = None
1322
self._revision_history_cache = None
1323
self._last_revision_info_cache = None
1324
self.bzrdir = remote_bzrdir
1325
if _client is not None:
1326
self._client = _client
1328
self._client = remote_bzrdir._client
1329
self.repository = remote_repository
1330
if real_branch is not None:
1331
self._real_branch = real_branch
1332
# Give the remote repository the matching real repo.
1333
real_repo = self._real_branch.repository
1334
if isinstance(real_repo, RemoteRepository):
1335
real_repo._ensure_real()
1336
real_repo = real_repo._real_repository
1337
self.repository._set_real_repository(real_repo)
1338
# Give the branch the remote repository to let fast-pathing happen.
1339
self._real_branch.repository = self.repository
1341
self._real_branch = None
1342
# Fill out expected attributes of branch for bzrlib api users.
1343
self._format = RemoteBranchFormat()
1344
self.base = self.bzrdir.root_transport.base
1345
self._control_files = None
1346
self._lock_mode = None
1347
self._lock_token = None
1348
self._repo_lock_token = None
1349
self._lock_count = 0
1350
self._leave_lock = False
1351
# The base class init is not called, so we duplicate this:
1352
hooks = branch.Branch.hooks['open']
1355
self._setup_stacking()
1357
def _setup_stacking(self):
1358
# configure stacking into the remote repository, by reading it from
1361
fallback_url = self.get_stacked_on_url()
1362
except (errors.NotStacked, errors.UnstackableBranchFormat,
1363
errors.UnstackableRepositoryFormat), e:
1365
# it's relative to this branch...
1366
fallback_url = urlutils.join(self.base, fallback_url)
1367
transports = [self.bzrdir.root_transport]
1368
if self._real_branch is not None:
1369
transports.append(self._real_branch._transport)
1370
stacked_on = branch.Branch.open(fallback_url,
1371
possible_transports=transports)
1372
self.repository.add_fallback_repository(stacked_on.repository)
1374
def _get_real_transport(self):
1375
# if we try vfs access, return the real branch's vfs transport
1377
return self._real_branch._transport
1379
_transport = property(_get_real_transport)
1382
return "%s(%s)" % (self.__class__.__name__, self.base)
1386
def _ensure_real(self):
1387
"""Ensure that there is a _real_branch set.
1389
Used before calls to self._real_branch.
1391
if self._real_branch is None:
1392
if not vfs.vfs_enabled():
1393
raise AssertionError('smart server vfs must be enabled '
1394
'to use vfs implementation')
1395
self.bzrdir._ensure_real()
1396
self._real_branch = self.bzrdir._real_bzrdir.open_branch()
1397
if self.repository._real_repository is None:
1398
# Give the remote repository the matching real repo.
1399
real_repo = self._real_branch.repository
1400
if isinstance(real_repo, RemoteRepository):
1401
real_repo._ensure_real()
1402
real_repo = real_repo._real_repository
1403
self.repository._set_real_repository(real_repo)
1404
# Give the real branch the remote repository to let fast-pathing
1406
self._real_branch.repository = self.repository
1407
if self._lock_mode == 'r':
1408
self._real_branch.lock_read()
1409
elif self._lock_mode == 'w':
1410
self._real_branch.lock_write(token=self._lock_token)
1412
def _translate_error(self, err, **context):
1413
self.repository._translate_error(err, branch=self, **context)
1415
def _clear_cached_state(self):
1416
super(RemoteBranch, self)._clear_cached_state()
1417
if self._real_branch is not None:
1418
self._real_branch._clear_cached_state()
1420
def _clear_cached_state_of_remote_branch_only(self):
1421
"""Like _clear_cached_state, but doesn't clear the cache of
1424
This is useful when falling back to calling a method of
1425
self._real_branch that changes state. In that case the underlying
1426
branch changes, so we need to invalidate this RemoteBranch's cache of
1427
it. However, there's no need to invalidate the _real_branch's cache
1428
too, in fact doing so might harm performance.
1430
super(RemoteBranch, self)._clear_cached_state()
1433
def control_files(self):
1434
# Defer actually creating RemoteBranchLockableFiles until its needed,
1435
# because it triggers an _ensure_real that we otherwise might not need.
1436
if self._control_files is None:
1437
self._control_files = RemoteBranchLockableFiles(
1438
self.bzrdir, self._client)
1439
return self._control_files
1441
def _get_checkout_format(self):
1443
return self._real_branch._get_checkout_format()
1445
def get_physical_lock_status(self):
1446
"""See Branch.get_physical_lock_status()."""
1447
# should be an API call to the server, as branches must be lockable.
1449
return self._real_branch.get_physical_lock_status()
1451
def get_stacked_on_url(self):
1452
"""Get the URL this branch is stacked against.
1454
:raises NotStacked: If the branch is not stacked.
1455
:raises UnstackableBranchFormat: If the branch does not support
1457
:raises UnstackableRepositoryFormat: If the repository does not support
1461
# there may not be a repository yet, so we can't use
1462
# self._translate_error, so we can't use self._call either.
1463
response = self._client.call('Branch.get_stacked_on_url',
1464
self._remote_path())
1465
except errors.ErrorFromSmartServer, err:
1466
# there may not be a repository yet, so we can't call through
1467
# its _translate_error
1468
_translate_error(err, branch=self)
1469
except errors.UnknownSmartMethod, err:
1471
return self._real_branch.get_stacked_on_url()
1472
if response[0] != 'ok':
1473
raise errors.UnexpectedSmartServerResponse(response)
1476
def lock_read(self):
1477
self.repository.lock_read()
1478
if not self._lock_mode:
1479
self._lock_mode = 'r'
1480
self._lock_count = 1
1481
if self._real_branch is not None:
1482
self._real_branch.lock_read()
1484
self._lock_count += 1
1486
def _remote_lock_write(self, token):
1488
branch_token = repo_token = ''
1490
branch_token = token
1491
repo_token = self.repository.lock_write()
1492
self.repository.unlock()
1493
err_context = {'token': token}
1494
response = self._call(
1495
'Branch.lock_write', self._remote_path(), branch_token,
1496
repo_token or '', **err_context)
1497
if response[0] != 'ok':
1498
raise errors.UnexpectedSmartServerResponse(response)
1499
ok, branch_token, repo_token = response
1500
return branch_token, repo_token
1502
def lock_write(self, token=None):
1503
if not self._lock_mode:
1504
# Lock the branch and repo in one remote call.
1505
remote_tokens = self._remote_lock_write(token)
1506
self._lock_token, self._repo_lock_token = remote_tokens
1507
if not self._lock_token:
1508
raise SmartProtocolError('Remote server did not return a token!')
1509
# Tell the self.repository object that it is locked.
1510
self.repository.lock_write(
1511
self._repo_lock_token, _skip_rpc=True)
1513
if self._real_branch is not None:
1514
self._real_branch.lock_write(token=self._lock_token)
1515
if token is not None:
1516
self._leave_lock = True
1518
self._leave_lock = False
1519
self._lock_mode = 'w'
1520
self._lock_count = 1
1521
elif self._lock_mode == 'r':
1522
raise errors.ReadOnlyTransaction
1524
if token is not None:
1525
# A token was given to lock_write, and we're relocking, so
1526
# check that the given token actually matches the one we
1528
if token != self._lock_token:
1529
raise errors.TokenMismatch(token, self._lock_token)
1530
self._lock_count += 1
1531
# Re-lock the repository too.
1532
self.repository.lock_write(self._repo_lock_token)
1533
return self._lock_token or None
1535
def _unlock(self, branch_token, repo_token):
1536
err_context = {'token': str((branch_token, repo_token))}
1537
response = self._call(
1538
'Branch.unlock', self._remote_path(), branch_token,
1539
repo_token or '', **err_context)
1540
if response == ('ok',):
1542
raise errors.UnexpectedSmartServerResponse(response)
1546
self._lock_count -= 1
1547
if not self._lock_count:
1548
self._clear_cached_state()
1549
mode = self._lock_mode
1550
self._lock_mode = None
1551
if self._real_branch is not None:
1552
if (not self._leave_lock and mode == 'w' and
1553
self._repo_lock_token):
1554
# If this RemoteBranch will remove the physical lock
1555
# for the repository, make sure the _real_branch
1556
# doesn't do it first. (Because the _real_branch's
1557
# repository is set to be the RemoteRepository.)
1558
self._real_branch.repository.leave_lock_in_place()
1559
self._real_branch.unlock()
1561
# Only write-locked branched need to make a remote method
1562
# call to perfom the unlock.
1564
if not self._lock_token:
1565
raise AssertionError('Locked, but no token!')
1566
branch_token = self._lock_token
1567
repo_token = self._repo_lock_token
1568
self._lock_token = None
1569
self._repo_lock_token = None
1570
if not self._leave_lock:
1571
self._unlock(branch_token, repo_token)
1573
self.repository.unlock()
1575
def break_lock(self):
1577
return self._real_branch.break_lock()
1579
def leave_lock_in_place(self):
1580
if not self._lock_token:
1581
raise NotImplementedError(self.leave_lock_in_place)
1582
self._leave_lock = True
1584
def dont_leave_lock_in_place(self):
1585
if not self._lock_token:
1586
raise NotImplementedError(self.dont_leave_lock_in_place)
1587
self._leave_lock = False
1589
def _last_revision_info(self):
1590
response = self._call('Branch.last_revision_info', self._remote_path())
1591
if response[0] != 'ok':
1592
raise SmartProtocolError('unexpected response code %s' % (response,))
1593
revno = int(response[1])
1594
last_revision = response[2]
1595
return (revno, last_revision)
1597
def _gen_revision_history(self):
1598
"""See Branch._gen_revision_history()."""
1599
response_tuple, response_handler = self._call_expecting_body(
1600
'Branch.revision_history', self._remote_path())
1601
if response_tuple[0] != 'ok':
1602
raise errors.UnexpectedSmartServerResponse(response_tuple)
1603
result = response_handler.read_body_bytes().split('\x00')
1608
def _remote_path(self):
1609
return self.bzrdir._path_for_remote_call(self._client)
1611
def _set_last_revision_descendant(self, revision_id, other_branch,
1612
allow_diverged=False, allow_overwrite_descendant=False):
1613
err_context = {'other_branch': other_branch}
1614
response = self._call('Branch.set_last_revision_ex',
1615
self._remote_path(), self._lock_token, self._repo_lock_token,
1616
revision_id, int(allow_diverged), int(allow_overwrite_descendant),
1618
self._clear_cached_state()
1619
if len(response) != 3 and response[0] != 'ok':
1620
raise errors.UnexpectedSmartServerResponse(response)
1621
new_revno, new_revision_id = response[1:]
1622
self._last_revision_info_cache = new_revno, new_revision_id
1623
if self._real_branch is not None:
1624
cache = new_revno, new_revision_id
1625
self._real_branch._last_revision_info_cache = cache
1627
def _set_last_revision(self, revision_id):
1628
self._clear_cached_state()
1629
response = self._call('Branch.set_last_revision',
1630
self._remote_path(), self._lock_token, self._repo_lock_token,
1632
if response != ('ok',):
1633
raise errors.UnexpectedSmartServerResponse(response)
1636
def set_revision_history(self, rev_history):
1637
# Send just the tip revision of the history; the server will generate
1638
# the full history from that. If the revision doesn't exist in this
1639
# branch, NoSuchRevision will be raised.
1640
if rev_history == []:
1643
rev_id = rev_history[-1]
1644
self._set_last_revision(rev_id)
1645
self._cache_revision_history(rev_history)
1647
def get_parent(self):
1649
return self._real_branch.get_parent()
1651
def set_parent(self, url):
1653
return self._real_branch.set_parent(url)
1655
def set_stacked_on_url(self, stacked_location):
1656
"""Set the URL this branch is stacked against.
1658
:raises UnstackableBranchFormat: If the branch does not support
1660
:raises UnstackableRepositoryFormat: If the repository does not support
1664
return self._real_branch.set_stacked_on_url(stacked_location)
1666
def sprout(self, to_bzrdir, revision_id=None):
1667
branch_format = to_bzrdir._format._branch_format
1668
if (branch_format is None or
1669
isinstance(branch_format, RemoteBranchFormat)):
1670
# The to_bzrdir specifies RemoteBranchFormat (or no format, which
1671
# implies the same thing), but RemoteBranches can't be created at
1672
# arbitrary URLs. So create a branch in the same format as
1673
# _real_branch instead.
1674
# XXX: if to_bzrdir is a RemoteBzrDir, this should perhaps do
1675
# to_bzrdir.create_branch to create a RemoteBranch after all...
1677
result = self._real_branch._format.initialize(to_bzrdir)
1678
self.copy_content_into(result, revision_id=revision_id)
1679
result.set_parent(self.bzrdir.root_transport.base)
1681
result = branch.Branch.sprout(
1682
self, to_bzrdir, revision_id=revision_id)
1686
def pull(self, source, overwrite=False, stop_revision=None,
1688
self._clear_cached_state_of_remote_branch_only()
1690
return self._real_branch.pull(
1691
source, overwrite=overwrite, stop_revision=stop_revision,
1692
_override_hook_target=self, **kwargs)
1695
def push(self, target, overwrite=False, stop_revision=None):
1697
return self._real_branch.push(
1698
target, overwrite=overwrite, stop_revision=stop_revision,
1699
_override_hook_source_branch=self)
1701
def is_locked(self):
1702
return self._lock_count >= 1
1705
def revision_id_to_revno(self, revision_id):
1707
return self._real_branch.revision_id_to_revno(revision_id)
1710
def set_last_revision_info(self, revno, revision_id):
1711
revision_id = ensure_null(revision_id)
1713
response = self._call('Branch.set_last_revision_info',
1714
self._remote_path(), self._lock_token, self._repo_lock_token,
1715
str(revno), revision_id)
1716
except errors.UnknownSmartMethod:
1718
self._clear_cached_state_of_remote_branch_only()
1719
self._real_branch.set_last_revision_info(revno, revision_id)
1720
self._last_revision_info_cache = revno, revision_id
1722
if response == ('ok',):
1723
self._clear_cached_state()
1724
self._last_revision_info_cache = revno, revision_id
1725
# Update the _real_branch's cache too.
1726
if self._real_branch is not None:
1727
cache = self._last_revision_info_cache
1728
self._real_branch._last_revision_info_cache = cache
1730
raise errors.UnexpectedSmartServerResponse(response)
1733
def generate_revision_history(self, revision_id, last_rev=None,
1735
medium = self._client._medium
1736
if not medium._is_remote_before((1, 6)):
1738
self._set_last_revision_descendant(revision_id, other_branch,
1739
allow_diverged=True, allow_overwrite_descendant=True)
1741
except errors.UnknownSmartMethod:
1742
medium._remember_remote_is_before((1, 6))
1743
self._clear_cached_state_of_remote_branch_only()
1745
self._real_branch.generate_revision_history(
1746
revision_id, last_rev=last_rev, other_branch=other_branch)
1751
return self._real_branch.tags
1753
def set_push_location(self, location):
1755
return self._real_branch.set_push_location(location)
1758
def update_revisions(self, other, stop_revision=None, overwrite=False,
1760
"""See Branch.update_revisions."""
1763
if stop_revision is None:
1764
stop_revision = other.last_revision()
1765
if revision.is_null(stop_revision):
1766
# if there are no commits, we're done.
1768
self.fetch(other, stop_revision)
1771
# Just unconditionally set the new revision. We don't care if
1772
# the branches have diverged.
1773
self._set_last_revision(stop_revision)
1775
medium = self._client._medium
1776
if not medium._is_remote_before((1, 6)):
1778
self._set_last_revision_descendant(stop_revision, other)
1780
except errors.UnknownSmartMethod:
1781
medium._remember_remote_is_before((1, 6))
1782
# Fallback for pre-1.6 servers: check for divergence
1783
# client-side, then do _set_last_revision.
1784
last_rev = revision.ensure_null(self.last_revision())
1786
graph = self.repository.get_graph()
1787
if self._check_if_descendant_or_diverged(
1788
stop_revision, last_rev, graph, other):
1789
# stop_revision is a descendant of last_rev, but we aren't
1790
# overwriting, so we're done.
1792
self._set_last_revision(stop_revision)
1797
def _extract_tar(tar, to_dir):
1798
"""Extract all the contents of a tarfile object.
1800
A replacement for extractall, which is not present in python2.4
1803
tar.extract(tarinfo, to_dir)
1806
def _translate_error(err, **context):
1807
"""Translate an ErrorFromSmartServer into a more useful error.
1809
Possible context keys:
1817
If the error from the server doesn't match a known pattern, then
1818
UnknownErrorFromSmartServer is raised.
1822
return context[name]
1823
except KeyError, key_err:
1824
mutter('Missing key %r in context %r', key_err.args[0], context)
1827
"""Get the path from the context if present, otherwise use first error
1831
return context['path']
1832
except KeyError, key_err:
1834
return err.error_args[0]
1835
except IndexError, idx_err:
1837
'Missing key %r in context %r', key_err.args[0], context)
1840
if err.error_verb == 'NoSuchRevision':
1841
raise NoSuchRevision(find('branch'), err.error_args[0])
1842
elif err.error_verb == 'nosuchrevision':
1843
raise NoSuchRevision(find('repository'), err.error_args[0])
1844
elif err.error_tuple == ('nobranch',):
1845
raise errors.NotBranchError(path=find('bzrdir').root_transport.base)
1846
elif err.error_verb == 'norepository':
1847
raise errors.NoRepositoryPresent(find('bzrdir'))
1848
elif err.error_verb == 'LockContention':
1849
raise errors.LockContention('(remote lock)')
1850
elif err.error_verb == 'UnlockableTransport':
1851
raise errors.UnlockableTransport(find('bzrdir').root_transport)
1852
elif err.error_verb == 'LockFailed':
1853
raise errors.LockFailed(err.error_args[0], err.error_args[1])
1854
elif err.error_verb == 'TokenMismatch':
1855
raise errors.TokenMismatch(find('token'), '(remote token)')
1856
elif err.error_verb == 'Diverged':
1857
raise errors.DivergedBranches(find('branch'), find('other_branch'))
1858
elif err.error_verb == 'TipChangeRejected':
1859
raise errors.TipChangeRejected(err.error_args[0].decode('utf8'))
1860
elif err.error_verb == 'UnstackableBranchFormat':
1861
raise errors.UnstackableBranchFormat(*err.error_args)
1862
elif err.error_verb == 'UnstackableRepositoryFormat':
1863
raise errors.UnstackableRepositoryFormat(*err.error_args)
1864
elif err.error_verb == 'NotStacked':
1865
raise errors.NotStacked(branch=find('branch'))
1866
elif err.error_verb == 'PermissionDenied':
1868
if len(err.error_args) >= 2:
1869
extra = err.error_args[1]
1872
raise errors.PermissionDenied(path, extra=extra)
1873
elif err.error_verb == 'ReadError':
1875
raise errors.ReadError(path)
1876
elif err.error_verb == 'NoSuchFile':
1878
raise errors.NoSuchFile(path)
1879
elif err.error_verb == 'FileExists':
1880
raise errors.FileExists(err.error_args[0])
1881
elif err.error_verb == 'DirectoryNotEmpty':
1882
raise errors.DirectoryNotEmpty(err.error_args[0])
1883
elif err.error_verb == 'ShortReadvError':
1884
args = err.error_args
1885
raise errors.ShortReadvError(
1886
args[0], int(args[1]), int(args[2]), int(args[3]))
1887
elif err.error_verb in ('UnicodeEncodeError', 'UnicodeDecodeError'):
1888
encoding = str(err.error_args[0]) # encoding must always be a string
1889
val = err.error_args[1]
1890
start = int(err.error_args[2])
1891
end = int(err.error_args[3])
1892
reason = str(err.error_args[4]) # reason must always be a string
1893
if val.startswith('u:'):
1894
val = val[2:].decode('utf-8')
1895
elif val.startswith('s:'):
1896
val = val[2:].decode('base64')
1897
if err.error_verb == 'UnicodeDecodeError':
1898
raise UnicodeDecodeError(encoding, val, start, end, reason)
1899
elif err.error_verb == 'UnicodeEncodeError':
1900
raise UnicodeEncodeError(encoding, val, start, end, reason)
1901
elif err.error_verb == 'ReadOnlyError':
1902
raise errors.TransportNotPossible('readonly transport')
1903
raise errors.UnknownErrorFromSmartServer(err)
added
removed
bzrlib/remote.py
