/brz/remove-bazaar

# Copyright (C) 2005-2007 Jelmer Vernooij <jelmer@samba.org>

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from bzrlib import debug, osutils, urlutils

from bzrlib.trace import mutter

from bzrlib.versionedfile import FulltextContentFactory, VersionedFiles, AbsentContentFactory, VirtualVersionedFiles

from bzrlib.plugins.svn.core import SubversionException

from bzrlib.plugins.svn.errors import ERR_FS_NOT_FILE

from cStringIO import StringIO

class SvnTexts(VersionedFiles):

    """Subversion texts backend."""

    def __init__(self, repository):

        self.repository = repository

    def check(self, progressbar=None):

        return True

    def add_mpdiffs(self, records):

        raise NotImplementedError(self.add_mpdiffs)

    def get_record_stream(self, keys, ordering, include_delta_closure):

        # TODO: there may be valid text revisions that only exist as 

        # ghosts in the repository itself. This function will 

        # not be able to report them.

        # TODO: Sort keys by file id and issue just one get_file_revs() call 

        # per file-id ?

        for (fileid, revid) in list(keys):

            (branch, revnum, mapping) = self.repository.lookup_revision_id(revid)

            map = self.repository.get_fileid_map(revnum, branch, mapping)

            # Unfortunately, the map is the other way around

            lines = None

            for k,(v,ck) in map.items():

                if v == fileid:

                    try:

                        stream = StringIO()

                        self.repository.transport.get_file(urlutils.join(branch, k), stream, revnum)

                        lines = stream.readlines()

                    except SubversionException, (_, num):

                        if num == ERR_FS_NOT_FILE:

                            lines = []

                        else:

                            raise

                    break

            if lines is None:

                raise Exception("Inconsistent key specified: (%r,%r)" % (fileid, revid))

            yield FulltextContentFactory((fileid,revid), None, 

                        sha1=osutils.sha_strings(lines),

                        text=''.join(lines))

    def get_parent_map(self, keys):

        invs = {}

        # First, figure out the revision number/path

        ret = {}

        for (fileid, revid) in keys:

            # FIXME: Evil hack

            ret[(fileid, revid)] = None

        return ret

    # TODO: annotate, get_sha1s, iter_lines_added_or_present_in_keys, keys

class VirtualRevisionTexts(VirtualVersionedFiles):

    """Virtual revisions backend."""

    def __init__(self, repository):

        self.repository = repository

        super(VirtualRevisionTexts, self).__init__(self.repository._make_parents_provider().get_parent_map, self.get_lines)

    def get_lines(self, key):

        return osutils.split_lines(self.repository.get_revision_xml(key))

    # TODO: annotate, iter_lines_added_or_present_in_keys, keys

class VirtualInventoryTexts(VirtualVersionedFiles):

    """Virtual inventories backend."""

    def __init__(self, repository):

        self.repository = repository

        super(VirtualInventoryTexts, self).__init__(self.repository._make_parents_provider().get_parent_map, self.get_lines)

    def get_lines(self, key):

        return osutils.split_lines(self.repository.get_inventory_xml(key))

    # TODO: annotate, iter_lines_added_or_present_in_keys, keys

class VirtualSignatureTexts(VirtualVersionedFiles):

    """Virtual signatures backend."""

    def __init__(self, repository):

        self.repository = repository

        super(VirtualSignatureTexts, self).__init__(self.repository._make_parents_provider().get_parent_map, self.get_lines)

    def get_lines(self, key):

        return osutils.split_lines(self.repository.get_signature_text(key))

    # TODO: annotate, iter_lines_added_or_present_in_keys, keys