message: Add command to refresh datasources
diff: @@ -149,6 +149,19 @@ def refresh_druid(datasource, merge):
  session.commit()
  +@manager.command
  +def update_datasources_cache():
  + """Refresh sqllab datasources cache"""
  + from superset import models
  + for database in db.session.query(models.Database).all():
  + print('Fetching {} datasources ...'.format(database.name))
  + try:
  + database.all_table_names()
  + database.all_view_names()
  + except Exception as e:
  + print('{}'.format(e.message))
  +
  +
  @manager.option(
  '-w', '--workers', default=config.get("SUPERSET_CELERY_WORKERS", 32),
  help="Number of celery server workers to fire up")
  