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Viewing changes to bzrlib/smart/bzrdir.py

  • Committer: Martin Pool
  • Date: 2005-09-07 04:00:21 UTC
  • Revision ID: mbp@sourcefrog.net-20050907040020-2c7a5e0176888d95
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bzrlib/smart/bzrdir.py
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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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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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"""Server-side bzrdir related request implmentations."""
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from bzrlib import errors
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from bzrlib.bzrdir import BzrDir, BzrDirFormat
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from bzrlib.smart.request import (
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    FailedSmartServerResponse,
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    SmartServerRequest,
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    SuccessfulSmartServerResponse,
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    )
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class SmartServerRequestOpenBzrDir(SmartServerRequest):
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    def do(self, path):
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        from bzrlib.bzrdir import BzrDirFormat
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        t = self._backing_transport.clone(path)
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        default_format = BzrDirFormat.get_default_format()
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        real_bzrdir = default_format.open(t, _found=True)
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        try:
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            real_bzrdir._format.probe_transport(t)
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        except (errors.NotBranchError, errors.UnknownFormatError):
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            answer = 'no'
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        else:
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            answer = 'yes'
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        return SuccessfulSmartServerResponse((answer,))
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class SmartServerRequestFindRepository(SmartServerRequest):
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    def do(self, path):
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        """try to find a repository from path upwards
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        This operates precisely like 'bzrdir.find_repository'.
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        If a bzrdir is not present, an exception is propogated
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        rather than 'no branch' because these are different conditions.
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        :return: norepository or ok, relpath.
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        """
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        bzrdir = BzrDir.open_from_transport(self._backing_transport.clone(path))
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        try:
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            repository = bzrdir.find_repository()
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            # the relpath of the bzrdir in the found repository gives us the 
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            # path segments to pop-out.
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            relpath = repository.bzrdir.root_transport.relpath(bzrdir.root_transport.base)
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            if len(relpath):
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                segments = ['..'] * len(relpath.split('/'))
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            else:
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                segments = []
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            if repository.supports_rich_root():
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                rich_root = 'yes'
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            else:
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                rich_root = 'no'
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            if repository._format.supports_tree_reference:
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                tree_ref = 'yes'
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            else:
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                tree_ref = 'no'
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            return SuccessfulSmartServerResponse(('ok', '/'.join(segments), rich_root, tree_ref))
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        except errors.NoRepositoryPresent:
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            return FailedSmartServerResponse(('norepository', ))
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class SmartServerRequestInitializeBzrDir(SmartServerRequest):
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    def do(self, path):
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        """Initialize a bzrdir at path.
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        The default format of the server is used.
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        :return: SmartServerResponse(('ok', ))
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        """
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        target_transport = self._backing_transport.clone(path)
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        BzrDirFormat.get_default_format().initialize_on_transport(target_transport)
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        return SuccessfulSmartServerResponse(('ok', ))
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class SmartServerRequestOpenBranch(SmartServerRequest):
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    def do(self, path):
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        """try to open a branch at path and return ok/nobranch.
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        If a bzrdir is not present, an exception is propogated
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        rather than 'no branch' because these are different conditions.
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        """
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        bzrdir = BzrDir.open_from_transport(self._backing_transport.clone(path))
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        try:
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            reference_url = bzrdir.get_branch_reference()
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            if reference_url is None:
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                return SuccessfulSmartServerResponse(('ok', ''))
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            else:
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                return SuccessfulSmartServerResponse(('ok', reference_url))
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        except errors.NotBranchError:
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            return FailedSmartServerResponse(('nobranch', ))