Drop direct execution of apply_config.py

Now we generate the console script using setuptools, and we don't
expect users may directly execute the *.py file.

Change-Id: I6ddeb659c641cf3af33518bb7bf4c24b101f87be

os_apply_config/apply_config.py

@@ -33,6 +33,11 @@ from os_apply_config import version
 
 DEFAULT_TEMPLATES_DIR = '/usr/libexec/os-apply-config/templates'
 
+LOG_FORMAT = '[%(asctime)s] [%(levelname)s] %(message)s'
+DATE_FORMAT = '%Y/%m/%d %I:%M:%S %p'
+
+logger = logging.getLogger('os-apply-config')
+
 
 def templates_dir():
     """Determine the default templates directory path
@@ -322,12 +327,23 @@ def load_list_from_json(json_file):
     return json_obj
 
 
+def add_handler(logger, handler):
+    handler.setFormatter(logging.Formatter(LOG_FORMAT, datefmt=DATE_FORMAT))
+    logger.addHandler(handler)
+
+
 def main(argv=sys.argv):
     opts = parse_opts(argv)
     if opts.print_templates:
         print(opts.templates)
         return 0
 
+    logger.setLevel(logging.INFO)
+    add_handler(logger, logging.StreamHandler())
+    if os.geteuid() == 0:
+        add_handler(logger,
+                    logging.FileHandler('/var/log/os-apply-config.log'))
+
     if not opts.metadata:
         if 'OS_CONFIG_FILES' in os.environ:
             opts.metadata = os.environ['OS_CONFIG_FILES'].split(':')
@@ -365,23 +381,3 @@ def main(argv=sys.argv):
         logger.error(e)
         return 1
     return 0
-
-
-# logging
-LOG_FORMAT = '[%(asctime)s] [%(levelname)s] %(message)s'
-DATE_FORMAT = '%Y/%m/%d %I:%M:%S %p'
-
-
-def add_handler(logger, handler):
-    handler.setFormatter(logging.Formatter(LOG_FORMAT, datefmt=DATE_FORMAT))
-    logger.addHandler(handler)
-
-
-logger = logging.getLogger('os-apply-config')
-logger.setLevel(logging.INFO)
-add_handler(logger, logging.StreamHandler())
-if os.geteuid() == 0:
-    add_handler(logger, logging.FileHandler('/var/log/os-apply-config.log'))
-
-if __name__ == '__main__':
-    sys.exit(main(sys.argv))

os_apply_config/tests/test_apply_config.py

@@ -78,12 +78,6 @@ CHOWN_OUTPUT = {
 }
 
 
-def main_path():
-    return (
-        os.path.dirname(os.path.realpath(__file__)) +
-        '/../os_apply_config.py')
-
-
 def template(relpath):
     return os.path.join(TEMPLATES, relpath[1:])