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  • Committer: Canonical.com Patch Queue Manager
  • Date: 2008-07-17 09:40:51 UTC
  • mfrom: (3518.1.2 virtualvf)
  • Revision ID: pqm@pqm.ubuntu.com-20080717094051-cgyo1zagozwcd4mm
(Jelmer) Add VirtualVersionedFiles class.

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bzrlib/smart/branch.py
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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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    def do(self, path, *args):
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        """Execute a request for a branch at path.
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35
    
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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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class SmartServerBranchGetConfigFile(SmartServerBranchRequest):
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77
    
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    def do_with_branch(self, branch):
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        """Return the content of branch.conf
80
 
 
 
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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class SmartServerBranchGetParent(SmartServerBranchRequest):
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92
 
    def do_with_branch(self, branch):
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        """Return the parent of branch."""
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        parent = branch._get_parent_location() or ''
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        return SuccessfulSmartServerResponse((parent,))
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97
 
 
98
 
class SmartServerBranchGetTagsBytes(SmartServerBranchRequest):
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100
 
    def do_with_branch(self, branch):
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        """Return the _get_tags_bytes for a branch."""
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        bytes = branch._get_tags_bytes()
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        return SuccessfulSmartServerResponse((bytes,))
104
 
 
105
 
 
106
 
class SmartServerBranchSetTagsBytes(SmartServerLockedBranchRequest):
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108
 
    def __init__(self, backing_transport, root_client_path='/', jail_root=None):
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        SmartServerLockedBranchRequest.__init__(
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            self, backing_transport, root_client_path, jail_root)
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        self.locked = False
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113
 
    def do_with_locked_branch(self, branch):
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        """Call _set_tags_bytes for a branch.
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        New in 1.18.
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        """
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        # We need to keep this branch locked until we get a body with the tags
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        # 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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124
 
    def do_body(self, bytes):
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        self.branch._set_tags_bytes(bytes)
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        return SuccessfulSmartServerResponse(())
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128
 
    def do_end(self):
129
 
        # 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.
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        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
139
 
            self.branch.unlock()
140
 
 
141
 
 
142
 
class SmartServerBranchRequestGetStackedOnURL(SmartServerBranchRequest):
143
 
 
144
 
    def do_with_branch(self, branch):
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        stacked_on_url = branch.get_stacked_on_url()
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        return SuccessfulSmartServerResponse(('ok', stacked_on_url))
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class SmartServerRequestRevisionHistory(SmartServerBranchRequest):
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    def do_with_branch(self, branch):
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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().
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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 SuccessfulSmartServerResponse(('ok', str(revno), last_revision))
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class SmartServerSetTipRequest(SmartServerLockedBranchRequest):
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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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    """
176
 
 
177
 
    def do_with_locked_branch(self, branch, *args):
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        try:
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            return self.do_tip_change_with_locked_branch(branch, *args)
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        except errors.TipChangeRejected, e:
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            msg = e.msg
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            if isinstance(msg, unicode):
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                msg = msg.encode('utf-8')
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            return FailedSmartServerResponse(('TipChangeRejected', msg))
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186
 
 
187
 
class SmartServerBranchRequestSetConfigOption(SmartServerLockedBranchRequest):
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    """Set an option in the branch configuration."""
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190
 
    def do_with_locked_branch(self, branch, value, name, section):
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        if not section:
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            section = None
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        branch._get_config().set_option(value.decode('utf8'), name, section)
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        return SuccessfulSmartServerResponse(())
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196
 
 
197
 
class SmartServerBranchRequestSetLastRevision(SmartServerSetTipRequest):
198
 
 
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    def do_tip_change_with_locked_branch(self, branch, new_last_revision_id):
 
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class SmartServerBranchRequestSetLastRevision(SmartServerLockedBranchRequest):
 
119
    
 
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    def do_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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        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))
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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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    def do_tip_change_with_locked_branch(self, branch, new_last_revision_id,
 
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class SmartServerBranchRequestSetLastRevisionEx(SmartServerLockedBranchRequest):
 
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    def do_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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217
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        New in 1.6.
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138
        
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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
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            ('ok', new_revno, new_last_revision_id))
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258
178
 
259
 
class SmartServerBranchRequestSetLastRevisionInfo(SmartServerSetTipRequest):
 
179
class SmartServerBranchRequestSetLastRevisionInfo(
 
180
    SmartServerLockedBranchRequest):
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181
    """Branch.set_last_revision_info.  Sets the revno and the revision ID of
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    the specified branch.
262
183
 
263
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    New in bzrlib 1.4.
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    """
265
 
 
266
 
    def do_tip_change_with_locked_branch(self, branch, new_revno,
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            new_last_revision_id):
 
186
    
 
187
    def do_with_locked_branch(self, branch, new_revno, new_last_revision_id):
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        try:
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            branch.set_last_revision_info(int(new_revno), new_last_revision_id)
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        except errors.NoSuchRevision:
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        return SuccessfulSmartServerResponse(('ok',))
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194
 
275
195
 
276
 
class SmartServerBranchRequestSetParentLocation(SmartServerLockedBranchRequest):
277
 
    """Set the parent location for a branch.
278
 
    
279
 
    Takes a location to set, which must be utf8 encoded.
280
 
    """
281
 
 
282
 
    def do_with_locked_branch(self, branch, location):
283
 
        branch._set_parent_location(location)
284
 
        return SuccessfulSmartServerResponse(())
285
 
 
286
 
 
287
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class SmartServerBranchRequestLockWrite(SmartServerBranchRequest):
288
 
 
 
197
    
289
198
    def do_with_branch(self, branch, branch_token='', repo_token=''):
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        if branch_token == '':
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            branch_token = None
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        branch.dont_leave_lock_in_place()
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        branch.unlock()
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        return SuccessfulSmartServerResponse(('ok',))
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