Feature #298 - Create environment tarball

[mediagoblin.git] / mediagoblin / gmg_commands / migrate.py

diff --git a/mediagoblin/gmg_commands/migrate.py b/mediagoblin/gmg_commands/migrate.py
index ab1a267be4a54f015e3ee96f8b220216236e5d99..94adc9e08434b6d3e04b27fe277857cc7c2f972c 100644 (file)
--- a/mediagoblin/gmg_commands/migrate.py
+++ b/mediagoblin/gmg_commands/migrate.py
@@ -14,10 +14,14 @@
 # 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 migrations
 from mediagoblin.db import util as db_util
-from mediagoblin.gmg_commands import util as commands_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):
@@ -26,31 +30,41 @@ def migrate_parser_setup(subparser):
         help="Config file used to set up environment")
 
 
+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):
-    mgoblin_app = commands_util.setup_app(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(mgoblin_app.db)
+    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 "== Applying migrations... =="
-    for model_name in migrations.MIGRATE_CLASSES:
-        model = getattr(mgoblin_app.db, model_name)
-
-        if not hasattr(model, 'migration_handler') or not model.collection:
-            continue
-
-        migration = model.migration_handler(model)
-        migration.migrate_all(collection=model.collection)
+    print "\n== Applying migrations... =="
+    migration_manager.migrate_new(
+        pre_callback=_print_started_migration,
+        post_callback=_print_finished_migration)
             
     # Add new indexes
-    print "== Adding new indexes... =="
-    new_indexes = db_util.add_new_indexes(mgoblin_app.db)
+    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'" % (