Add cli handling and settings

chainqueue/cli/__init__.py

@@ -0,0 +1,11 @@
+# standard imports
+import os
+
+# local imports
+from .arg import process_flags
+from .config import process_config
+
+
+__script_dir = os.path.dirname(os.path.realpath(__file__))
+data_dir = os.path.join(os.path.dirname(__script_dir), 'data')
+config_dir = os.path.join(data_dir, 'config')

chainqueue/cli/arg.py

@@ -0,0 +1,2 @@
+def process_flags(argparser, flags):
+    argparser.add_argument('--backend', type=str, help='Backend to use for state store')

chainqueue/cli/config.py

@@ -0,0 +1,8 @@
+def process_config(config, args, flags):
+        args_override = {}
+
+        args_override['QUEUE_BACKEND'] = getattr(args, 'backend')
+
+        config.dict_override(args_override, 'local cli args')
+
+        return config

chainqueue/data/config/config.ini

@@ -1,9 +1,2 @@
-[database]
-name =
-engine =
-driver =
-host =
-port =
-user =
-password =
-debug = 0
+[queue]
+backend = mem

chainqueue/settings.py

@@ -0,0 +1,8 @@
+# external imports
+from chainlib.settings import ChainSettings
+
+
+class ChainqueueSettings(ChainSettings):
+
+    def process_queue_backend(self, config):
+        self.o['QUEUE_BACKEND'] = config.get('QUEUE_BACKEND')