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Viewing changes to bzrlib/smart/branch.py

  • Committer: Patch Queue Manager
  • Date: 2012-06-18 12:59:19 UTC
  • mfrom: (6524.1.1 bzr.dev)
  • Revision ID: pqm@pqm.ubuntu.com-20120618125919-jf2dy5p1apoljtan
(jelmer) Merge 2.5. (Jelmer Vernooij)

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bzrlib/smart/branch.py
1
 
# Copyright (C) 2006 Canonical Ltd
 
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# Copyright (C) 2006-2010 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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"""Server-side branch related request implmentations."""
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18
 
 
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from __future__ import absolute_import
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20
 
20
 
from bzrlib import errors
21
 
from bzrlib.bzrdir import BzrDir
 
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from bzrlib import (
 
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    bencode,
 
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    errors,
 
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    revision as _mod_revision,
 
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    )
 
26
from bzrlib.controldir import ControlDir
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from bzrlib.smart.request import (
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    FailedSmartServerResponse,
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    SmartServerRequest,
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        :return: A SmartServerResponse from self.do_with_branch().
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        """
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        transport = self.transport_from_client_path(path)
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        bzrdir = BzrDir.open_from_transport(transport)
46
 
        if bzrdir.get_branch_reference() is not None:
 
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        controldir = ControlDir.open_from_transport(transport)
 
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        if controldir.get_branch_reference() is not None:
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            raise errors.NotBranchError(transport.base)
48
 
        branch = bzrdir.open_branch(ignore_fallbacks=True)
 
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        branch = controldir.open_branch(ignore_fallbacks=True)
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        return self.do_with_branch(branch, *args)
50
55
 
51
56
 
73
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            branch.repository.unlock()
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79
 
75
80
 
 
81
class SmartServerBranchBreakLock(SmartServerBranchRequest):
 
82
 
 
83
    def do_with_branch(self, branch):
 
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        """Break a branch lock.
 
85
        """
 
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        branch.break_lock()
 
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        return SuccessfulSmartServerResponse(('ok', ), )
 
88
 
 
89
 
76
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class SmartServerBranchGetConfigFile(SmartServerBranchRequest):
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91
 
78
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    def do_with_branch(self, branch):
81
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        The body is not utf8 decoded - its the literal bytestream from disk.
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        """
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        try:
84
 
            content = branch._transport.get_bytes('branch.conf')
 
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            content = branch.control_transport.get_bytes('branch.conf')
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        except errors.NoSuchFile:
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            content = ''
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        return SuccessfulSmartServerResponse( ('ok', ), content)
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102
 
89
103
 
 
104
class SmartServerBranchPutConfigFile(SmartServerBranchRequest):
 
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    """Set the configuration data for a branch.
 
106
 
 
107
    New in 2.5.
 
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    """
 
109
 
 
110
    def do_with_branch(self, branch, branch_token, repo_token):
 
111
        """Set the content of branch.conf.
 
112
 
 
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        The body is not utf8 decoded - its the literal bytestream for disk.
 
114
        """
 
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        self._branch = branch
 
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        self._branch_token = branch_token
 
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        self._repo_token = repo_token
 
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        # Signal we want a body
 
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        return None
 
120
 
 
121
    def do_body(self, body_bytes):
 
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        self._branch.repository.lock_write(token=self._repo_token)
 
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        try:
 
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            self._branch.lock_write(token=self._branch_token)
 
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            try:
 
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                self._branch.control_transport.put_bytes(
 
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                    'branch.conf', body_bytes)
 
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            finally:
 
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                self._branch.unlock()
 
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        finally:
 
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            self._branch.repository.unlock()
 
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        return SuccessfulSmartServerResponse(('ok', ))
 
133
 
 
134
 
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class SmartServerBranchGetParent(SmartServerBranchRequest):
91
136
 
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    def do_with_branch(self, branch):
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            self.branch.unlock()
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141
186
 
 
187
class SmartServerBranchHeadsToFetch(SmartServerBranchRequest):
 
188
 
 
189
    def do_with_branch(self, branch):
 
190
        """Return the heads-to-fetch for a Branch as two bencoded lists.
 
191
        
 
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        See Branch.heads_to_fetch.
 
193
 
 
194
        New in 2.4.
 
195
        """
 
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        must_fetch, if_present_fetch = branch.heads_to_fetch()
 
197
        return SuccessfulSmartServerResponse(
 
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            (list(must_fetch), list(if_present_fetch)))
 
199
 
 
200
 
142
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class SmartServerBranchRequestGetStackedOnURL(SmartServerBranchRequest):
143
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144
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    def do_with_branch(self, branch):
154
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        The revision list is returned as the body content,
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        with each revision utf8 encoded and \x00 joined.
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        """
 
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        branch.lock_read()
 
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        try:
 
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            graph = branch.repository.get_graph()
 
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            stop_revisions = (None, _mod_revision.NULL_REVISION)
 
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            history = list(graph.iter_lefthand_ancestry(
 
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                branch.last_revision(), stop_revisions))
 
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        finally:
 
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            branch.unlock()
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        return SuccessfulSmartServerResponse(
158
 
            ('ok', ), ('\x00'.join(branch.revision_history())))
 
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            ('ok', ), ('\x00'.join(reversed(history))))
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226
 
160
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class SmartServerBranchRequestLastRevisionInfo(SmartServerBranchRequest):
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        return SuccessfulSmartServerResponse(('ok', str(revno), last_revision))
170
237
 
171
238
 
 
239
class SmartServerBranchRequestRevisionIdToRevno(SmartServerBranchRequest):
 
240
 
 
241
    def do_with_branch(self, branch, revid):
 
242
        """Return branch.revision_id_to_revno().
 
243
 
 
244
        New in 2.5.
 
245
 
 
246
        The revno is encoded in decimal, the revision_id is encoded as utf8.
 
247
        """
 
248
        try:
 
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            dotted_revno = branch.revision_id_to_dotted_revno(revid)
 
250
        except errors.NoSuchRevision:
 
251
            return FailedSmartServerResponse(('NoSuchRevision', revid))
 
252
        return SuccessfulSmartServerResponse(
 
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            ('ok', ) + tuple(map(str, dotted_revno)))
 
254
 
 
255
 
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class SmartServerSetTipRequest(SmartServerLockedBranchRequest):
173
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    """Base class for handling common branch request logic for requests that
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    update the branch tip.
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278
        return SuccessfulSmartServerResponse(())
195
279
 
196
280
 
 
281
class SmartServerBranchRequestSetConfigOptionDict(SmartServerLockedBranchRequest):
 
282
    """Set an option in the branch configuration.
 
283
    
 
284
    New in 2.2.
 
285
    """
 
286
 
 
287
    def do_with_locked_branch(self, branch, value_dict, name, section):
 
288
        utf8_dict = bencode.bdecode(value_dict)
 
289
        value_dict = {}
 
290
        for key, value in utf8_dict.items():
 
291
            value_dict[key.decode('utf8')] = value.decode('utf8')
 
292
        if not section:
 
293
            section = None
 
294
        branch._get_config().set_option(value_dict, name, section)
 
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        return SuccessfulSmartServerResponse(())
 
296
 
 
297
 
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class SmartServerBranchRequestSetLastRevision(SmartServerSetTipRequest):
198
299
 
199
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    def do_tip_change_with_locked_branch(self, branch, new_last_revision_id):
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        if new_last_revision_id == 'null:':
201
 
            branch.set_revision_history([])
 
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            branch.set_last_revision_info(0, new_last_revision_id)
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        else:
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            if not branch.repository.has_revision(new_last_revision_id):
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                return FailedSmartServerResponse(
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                    ('NoSuchRevision', new_last_revision_id))
206
 
            branch.set_revision_history(branch._lefthand_history(
207
 
                new_last_revision_id, None, None))
 
307
            branch.generate_revision_history(new_last_revision_id, None, None)
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308
        return SuccessfulSmartServerResponse(('ok',))
209
309
 
210
310
 
292
392
        if repo_token == '':
293
393
            repo_token = None
294
394
        try:
295
 
            repo_token = branch.repository.lock_write(token=repo_token)
 
395
            repo_token = branch.repository.lock_write(
 
396
                token=repo_token).repository_token
296
397
            try:
297
 
                branch_token = branch.lock_write(token=branch_token)
 
398
                branch_token = branch.lock_write(
 
399
                    token=branch_token).branch_token
298
400
            finally:
299
401
                # this leaves the repository with 1 lock
300
402
                branch.repository.unlock()
332
434
        branch.unlock()
333
435
        return SuccessfulSmartServerResponse(('ok',))
334
436
 
 
437
 
 
438
class SmartServerBranchRequestGetPhysicalLockStatus(SmartServerBranchRequest):
 
439
    """Get the physical lock status for a branch.
 
440
 
 
441
    New in 2.5.
 
442
    """
 
443
 
 
444
    def do_with_branch(self, branch):
 
445
        if branch.get_physical_lock_status():
 
446
            return SuccessfulSmartServerResponse(('yes',))
 
447
        else:
 
448
            return SuccessfulSmartServerResponse(('no',))