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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys
from mediagoblin.db import util as db_util
from mediagoblin.db.open import setup_connection_and_db_from_config
from mediagoblin.init.config import read_mediagoblin_config
# This MUST be imported so as to set up the appropriate migrations!
from mediagoblin.db import migrations
def migrate_parser_setup(subparser):
pass
def _print_started_migration(migration_number, migration_func):
sys.stdout.write(
"Running migration %s, '%s'... " % (
migration_number, migration_func.func_name))
sys.stdout.flush()
def _print_finished_migration(migration_number, migration_func):
sys.stdout.write("done.\n")
sys.stdout.flush()
def migrate(args):
config, validation_result = read_mediagoblin_config(args.conf_file)
connection, db = setup_connection_and_db_from_config(
config['mediagoblin'], use_pymongo=True)
migration_manager = db_util.MigrationManager(db)
# Clear old indexes
print "== Clearing old indexes... =="
removed_indexes = db_util.remove_deprecated_indexes(db)
for collection, index_name in removed_indexes:
print "Removed index '%s' in collection '%s'" % (
index_name, collection)
# Migrate
print "\n== Applying migrations... =="
migration_manager.migrate_new(
pre_callback=_print_started_migration,
post_callback=_print_finished_migration)
# Add new indexes
print "\n== Adding new indexes... =="
new_indexes = db_util.add_new_indexes(db)
for collection, index_name in new_indexes:
print "Added index '%s' to collection '%s'" % (
index_name, collection)
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