Merged from central

scripts/manage_db.py

@@ -0,0 +1,45 @@
+import sys, os.path, logging
+
+new_path = [ os.path.join( os.getcwd(), "lib" ) ]
+new_path.extend( sys.path[1:] ) # remove scripts/ from the path
+sys.path = new_path
+
+from galaxy import eggs
+
+import pkg_resources
+pkg_resources.require( "sqlalchemy-migrate" )
+
+from migrate.versioning.shell import main
+from ConfigParser import SafeConfigParser
+
+log = logging.getLogger( __name__ )
+
+cp = SafeConfigParser()
+cp.read( "universe_wsgi.ini" )
+
+if cp.has_option( "app:main", "database_connection" ):
+    db_url = cp.get( "app:main", "database_connection" )
+elif cp.has_option( "app:main", "database_file" ):
+    db_url = "sqlite:///%s?isolation_level=IMMEDIATE" % cp.get( "app:main", "database_file" )
+else:
+    db_url = None
+
+dialect_to_egg = {
+    "sqlite" : "pysqlite>=2",
+    "postgres" : "psycopg2",
+    "mysql" : "MySQL_python"
+}
+dialect = ( db_url.split( ':', 1 ) )[0]
+try:
+    egg = dialect_to_egg[dialect]
+    try:
+        pkg_resources.require( egg )
+        log.debug( "%s egg successfully loaded for %s dialect" % ( egg, dialect ) )
+    except:
+        # If the module is in the path elsewhere (i.e. non-egg), it'll still load.
+        log.warning( "%s egg not found, but an attempt will be made to use %s anyway" % ( egg, dialect ) )
+except KeyError:
+    # Let this go, it could possibly work with db's we don't support
+    log.error( "database_connection contains an unknown SQLAlchemy database dialect: %s" % dialect )
+
+main( repository='lib/galaxy/model/migrate', url=db_url )