Let a debug config file be specified from the command line.

vasl_templates/main.py

@@ -15,7 +15,7 @@ import click
 
 from vasl_templates.main_window import MainWindow
 from vasl_templates.webapp import app as webapp
-from vasl_templates.webapp import generate
+from vasl_templates.webapp import generate, load_debug_config
 
 # ---------------------------------------------------------------------
 
@@ -40,7 +40,8 @@ class LoggerProxy:
 
 @click.command()
 @click.option( "--template-pack", help="Template pack to auto-load (ZIP file or directory)." )
-def main( template_pack ):
+@click.option( "--debug", help="Debug config file." )
+def main( template_pack, debug ):
     """Main entry point for the application."""
 
     # configure the autoload template pack
@@ -54,6 +55,10 @@ def main( template_pack ):
             return 1
         generate.autoload_template_pack = template_pack
 
+    # install the debug config file
+    if debug:
+        load_debug_config( debug )
+
     # connect stdout/stderr to Python logging
     # NOTE: Logging to the console causes crashes on Windows if we are frozen, so don't do that!
     sys.stdout = LoggerProxy( logging, logging.INFO )

vasl_templates/webapp/__init__.py

@@ -11,6 +11,13 @@ from vasl_templates.webapp.config.constants import APP_NAME, BASE_DIR
 
 # ---------------------------------------------------------------------
 
+def load_debug_config( fname ):
+    """Configure the application."""
+    config_parser.read( fname )
+    app.config.update( dict( config_parser.items( "Debug" ) ) )
+
+# ---------------------------------------------------------------------
+
 # initialize Flask
 app = Flask( __name__ )
 
@@ -20,16 +27,17 @@ config_parser = configparser.ConfigParser()
 config_parser.optionxform = str # preserve case for the keys :-/
 config_parser.read( os.path.join( config_dir, "app.cfg" ) )
 app.config.update( dict( config_parser.items( "System" ) ) )
-fname = os.path.join( config_dir, "debug.cfg" )
-if os.path.isfile( fname ) :
-    config_parser.read( fname )
-    app.config.update( dict( config_parser.items( "Debug" ) ) )
+
+# load any debug configuration
+_fname = os.path.join( config_dir, "debug.cfg" )
+if os.path.isfile( _fname ) :
+    load_debug_config( _fname )
 
 # initialize logging
-fname = os.path.join( config_dir, "logging.cfg" )
-if os.path.isfile( fname ):
+_fname = os.path.join( config_dir, "logging.cfg" )
+if os.path.isfile( _fname ):
     import logging.config
-    logging.config.dictConfig( json.load( open(fname,"r") ) )
+    logging.config.dictConfig( json.load( open(_fname,"r") ) )
 
 # load the application
 import vasl_templates.webapp.main #pylint: disable=cyclic-import