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# (Be in -*- python -*- mode.)
#
# ====================================================================
# Copyright (c) 2006-2008 CollabNet. All rights reserved.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://subversion.tigris.org/license-1.html.
# If newer versions of this license are posted there, you may use a
# newer version instead, at your option.
#
# This software consists of voluntary contributions made by many
# individuals. For exact contribution history, see the revision
# history and logs, available at http://cvs2svn.tigris.org/.
# ====================================================================
"""This module contains classes to store changesets."""
from cvs2svn_lib.changeset import Changeset
from cvs2svn_lib.changeset import RevisionChangeset
from cvs2svn_lib.changeset import OrderedChangeset
from cvs2svn_lib.changeset import SymbolChangeset
from cvs2svn_lib.changeset import BranchChangeset
from cvs2svn_lib.changeset import TagChangeset
from cvs2svn_lib.record_table import UnsignedIntegerPacker
from cvs2svn_lib.record_table import MmapRecordTable
from cvs2svn_lib.record_table import RecordTable
from cvs2svn_lib.database import IndexedStore
from cvs2svn_lib.serializer import PrimedPickleSerializer
# Should the CVSItemToChangesetTable database files be memory mapped?
# This speeds up the converstion but can cause the computer's virtual
# address space to be exhausted. This option can be changed
# externally, affecting any CVSItemToChangesetTables opened subsequent
# to the change:
use_mmap_for_cvs_item_to_changeset_table = False
def CVSItemToChangesetTable(filename, mode):
if use_mmap_for_cvs_item_to_changeset_table:
return MmapRecordTable(filename, mode, UnsignedIntegerPacker())
else:
return RecordTable(filename, mode, UnsignedIntegerPacker())
class ChangesetDatabase(IndexedStore):
def __init__(self, filename, index_filename, mode):
primer = (
Changeset,
RevisionChangeset,
OrderedChangeset,
SymbolChangeset,
BranchChangeset,
TagChangeset,
)
IndexedStore.__init__(
self, filename, index_filename, mode, PrimedPickleSerializer(primer))
def store(self, changeset):
self.add(changeset)
def keys(self):
return list(self.iterkeys())
def close(self):
IndexedStore.close(self)
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