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  • Committer: Jelmer Vernooij
  • Date: 2009-02-10 04:10:44 UTC
  • mto: This revision was merged to the branch mainline in revision 3995.
  • Revision ID: jelmer@samba.org-20090210041044-42lmb09hskt9lt9l
Review from Ian.

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bzrlib/smart/branch.py
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# Copyright (C) 2006-2010 Canonical Ltd
 
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# Copyright (C) 2006 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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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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"""Server-side branch related request implmentations."""
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18
 
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from bzrlib import (
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    bencode,
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    errors,
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    )
 
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from bzrlib import errors
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from bzrlib.bzrdir import BzrDir
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from bzrlib.smart.request import (
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    FailedSmartServerResponse,
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    def do(self, path, *args):
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        """Execute a request for a branch at path.
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        All Branch requests take a path to the branch as their first argument.
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        If the branch is a branch reference, NotBranchError is raised.
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        bzrdir = BzrDir.open_from_transport(transport)
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        if bzrdir.get_branch_reference() is not None:
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            raise errors.NotBranchError(transport.base)
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        branch = bzrdir.open_branch(ignore_fallbacks=True)
 
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        branch = bzrdir.open_branch()
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        return self.do_with_branch(branch, *args)
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54
51
 
77
74
 
78
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79
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class SmartServerBranchGetConfigFile(SmartServerBranchRequest):
80
 
 
 
77
    
81
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    def do_with_branch(self, branch):
82
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        """Return the content of branch.conf
83
 
 
 
80
        
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        The body is not utf8 decoded - its the literal bytestream from disk.
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        """
 
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        # This was at one time called by RemoteBranchLockableFiles
 
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        # intercepting access to this file; as of 1.5 it is not called by the
 
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        # client but retained for compatibility.  It may be called again to
 
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        # allow the client to get the configuration without needing vfs
 
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        # access.
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        try:
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            content = branch._transport.get_bytes('branch.conf')
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        except errors.NoSuchFile:
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        return SuccessfulSmartServerResponse( ('ok', ), content)
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93
 
92
94
 
93
 
class SmartServerBranchGetParent(SmartServerBranchRequest):
94
 
 
95
 
    def do_with_branch(self, branch):
96
 
        """Return the parent of branch."""
97
 
        parent = branch._get_parent_location() or ''
98
 
        return SuccessfulSmartServerResponse((parent,))
99
 
 
100
 
 
101
 
class SmartServerBranchGetTagsBytes(SmartServerBranchRequest):
102
 
 
103
 
    def do_with_branch(self, branch):
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        """Return the _get_tags_bytes for a branch."""
105
 
        bytes = branch._get_tags_bytes()
106
 
        return SuccessfulSmartServerResponse((bytes,))
107
 
 
108
 
 
109
 
class SmartServerBranchSetTagsBytes(SmartServerLockedBranchRequest):
110
 
 
111
 
    def __init__(self, backing_transport, root_client_path='/', jail_root=None):
112
 
        SmartServerLockedBranchRequest.__init__(
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            self, backing_transport, root_client_path, jail_root)
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        self.locked = False
115
 
        
116
 
    def do_with_locked_branch(self, branch):
117
 
        """Call _set_tags_bytes for a branch.
118
 
 
119
 
        New in 1.18.
120
 
        """
121
 
        # We need to keep this branch locked until we get a body with the tags
122
 
        # bytes.
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        self.branch = branch
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        self.branch.lock_write()
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        self.locked = True
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127
 
    def do_body(self, bytes):
128
 
        self.branch._set_tags_bytes(bytes)
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        return SuccessfulSmartServerResponse(())
130
 
 
131
 
    def do_end(self):
132
 
        # TODO: this request shouldn't have to do this housekeeping manually.
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        # Some of this logic probably belongs in a base class.
134
 
        if not self.locked:
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            # We never acquired the branch successfully in the first place, so
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            # there's nothing more to do.
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            return
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        try:
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            return SmartServerLockedBranchRequest.do_end(self)
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        finally:
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            # Only try unlocking if we locked successfully in the first place
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            self.branch.unlock()
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144
 
 
145
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class SmartServerBranchRequestGetStackedOnURL(SmartServerBranchRequest):
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    def do_with_branch(self, branch):
162
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163
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class SmartServerBranchRequestLastRevisionInfo(SmartServerBranchRequest):
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    def do_with_branch(self, branch):
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        """Return branch.last_revision_info().
168
 
 
 
118
        
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        The revno is encoded in decimal, the revision_id is encoded as utf8.
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        """
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        revno, last_revision = branch.last_revision_info()
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            return FailedSmartServerResponse(('TipChangeRejected', msg))
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189
139
 
190
 
class SmartServerBranchRequestSetConfigOption(SmartServerLockedBranchRequest):
191
 
    """Set an option in the branch configuration."""
192
 
 
193
 
    def do_with_locked_branch(self, branch, value, name, section):
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        if not section:
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            section = None
196
 
        branch._get_config().set_option(value.decode('utf8'), name, section)
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        return SuccessfulSmartServerResponse(())
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199
 
 
200
 
class SmartServerBranchRequestSetConfigOptionDict(SmartServerLockedBranchRequest):
201
 
    """Set an option in the branch configuration.
202
 
    
203
 
    New in 2.2.
204
 
    """
205
 
 
206
 
    def do_with_locked_branch(self, branch, value_dict, name, section):
207
 
        utf8_dict = bencode.bdecode(value_dict)
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        value_dict = {}
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        for key, value in utf8_dict.items():
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            value_dict[key.decode('utf8')] = value.decode('utf8')
211
 
        if not section:
212
 
            section = None
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        branch._get_config().set_option(value_dict, name, section)
214
 
        return SuccessfulSmartServerResponse(())
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class SmartServerBranchRequestSetLastRevision(SmartServerSetTipRequest):
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141
    
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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:':
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            branch.set_revision_history([])
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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))
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            branch.set_revision_history(branch._lefthand_history(
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                new_last_revision_id, None, None))
 
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            branch.generate_revision_history(new_last_revision_id)
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        return SuccessfulSmartServerResponse(('ok',))
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class SmartServerBranchRequestSetLastRevisionEx(SmartServerSetTipRequest):
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154
    
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    def do_tip_change_with_locked_branch(self, branch, new_last_revision_id,
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            allow_divergence, allow_overwrite_descendant):
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        """Set the last revision of the branch.
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237
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        New in 1.6.
238
 
 
 
160
        
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        :param new_last_revision_id: the revision ID to set as the last
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            revision of the branch.
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        :param allow_divergence: A flag.  If non-zero, change the revision ID
282
204
 
283
205
    New in bzrlib 1.4.
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206
    """
285
 
 
 
207
    
286
208
    def do_tip_change_with_locked_branch(self, branch, new_revno,
287
209
            new_last_revision_id):
288
210
        try:
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        return SuccessfulSmartServerResponse(('ok',))
294
216
 
295
217
 
296
 
class SmartServerBranchRequestSetParentLocation(SmartServerLockedBranchRequest):
297
 
    """Set the parent location for a branch.
298
 
    
299
 
    Takes a location to set, which must be utf8 encoded.
300
 
    """
301
 
 
302
 
    def do_with_locked_branch(self, branch, location):
303
 
        branch._set_parent_location(location)
304
 
        return SuccessfulSmartServerResponse(())
305
 
 
306
 
 
307
218
class SmartServerBranchRequestLockWrite(SmartServerBranchRequest):
308
 
 
 
219
    
309
220
    def do_with_branch(self, branch, branch_token='', repo_token=''):
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221
        if branch_token == '':
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            branch_token = None
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223
        if repo_token == '':
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224
            repo_token = None
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225
        try:
315
 
            repo_token = branch.repository.lock_write(
316
 
                token=repo_token).repository_token
 
226
            repo_token = branch.repository.lock_write(token=repo_token)
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227
            try:
318
 
                branch_token = branch.lock_write(
319
 
                    token=branch_token).branch_token
 
228
                branch_token = branch.lock_write(token=branch_token)
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229
            finally:
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                # this leaves the repository with 1 lock
322
231
                branch.repository.unlock()
353
262
        branch.dont_leave_lock_in_place()
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263
        branch.unlock()
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264
        return SuccessfulSmartServerResponse(('ok',))
356
 
 
 
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