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authorChristopher Allan Webber <>2016-03-12 11:30:08 -0800
committerChristopher Allan Webber <>2016-03-26 11:39:07 -0700
commit406058b3405cbf626a27458d2a97887bc48cb603 (patch)
parentf25b476202b5ebe706a99fa586041c23b85acaa5 (diff)
Allow for passing in --with-plugins to the alembic gmg subcommand.
This allows plugin writers to easily take advantage off alembic's migration autogeneration support. * mediagoblin/gmg_commands/ Adjusted imports. (FudgedCommandLine.main, parser_setup): Add support for importing plugins when --with-plugins is passed in.
1 files changed, 19 insertions, 0 deletions
diff --git a/mediagoblin/gmg_commands/ b/mediagoblin/gmg_commands/
index 58b931dc..dc679f22 100644
--- a/mediagoblin/gmg_commands/
+++ b/mediagoblin/gmg_commands/
@@ -22,17 +22,33 @@ from sqlalchemy.orm import sessionmaker
from import setup_connection_and_db_from_config
from mediagoblin.init import setup_global_and_app_config
from mediagoblin.db.migration_tools import build_alembic_config
+from import import_component
class FudgedCommandLine(config.CommandLine):
def main(self, args, db, global_config):
options = self.parser.parse_args(args.args_for_alembic)
+ # This is useful for people running commands involving plugins, such
+ # as building autogenerated revisions.
+ if args.with_plugins:
+ plugins = global_config.get('plugins', {}).keys()
+ for plugin in plugins:
+ print(plugin)
+ try:
+ import_component('{0}.models:MODELS'.format(plugin))
+ except ImportError:
+ # It doesn't really matter if there's no models to import
+ # here.
+ pass
# This code is inspired by a hack in Alembic, but isn't the same really.
# Regardless, Alembic is Expat licensed.
if not hasattr(options, "cmd"):
"* Only use this command if you know what you are doing! *\n"
"If not, use the 'gmg dbupdate' command instead.\n\n"
+ "(You can also pass --with-plugins here.)"
"Alembic help:\n")
@@ -45,6 +61,9 @@ class FudgedCommandLine(config.CommandLine):
self.run_cmd(cfg, options)
def parser_setup(subparser):
+ subparser.add_argument(
+ "--with-plugins", action="store_true",
+ help="Import all plugins' models before running alembic commands.")
subparser.add_argument("args_for_alembic", nargs=argparse.REMAINDER)
def raw_alembic_cli(args):