Load custom configs

src/phi/config.py

@@ -13,12 +13,16 @@ CONFIG_FILES = [os.path.join(p, CONFIG_FILE)
                 for p in CONFIG_PATHS]
 
 
-def get_config():
+def get_config(custom_config=None):
     """Return the path of the found configuration file and its content
 
     :returns: (path, config)
     :rtype: (str, dict)
     """
+    if custom_config:
+        global CONFIG_FILES
+        CONFIG_FILES = [custom_config]
+
     for f in CONFIG_FILES:
         try:
             with open(f, 'r') as c:
@@ -30,6 +34,11 @@ def get_config():
             # accessible or if the file is not present at all
             # in any of CONFIG_PATHS.
             pass
+    else:
+        if custom_config:
+            raise FileNotFoundError('Config file {} not found.'
+                                    .format(custom_config))
         else:
             raise FileNotFoundError("Could not find {} in any of {}."
-                                .format(CONFIG_FILE, ', '.join(CONFIG_PATHS)))
+                                    .format(CONFIG_FILE,
+                                            ', '.join(CONFIG_PATHS)))

src/phicli

@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
 from pprint import pformat as pp
+import sys
+import argparse
 
 import phi.ldap.client
 from phi.config import get_config
@@ -9,13 +11,17 @@ log = get_logger(__name__)
 
 
 if __name__ == '__main__':
-    config_file, config = get_config()
+    parser = argparse.ArgumentParser()
 
+    parser.add_argument('--config', metavar='config.yml',
+                        type=str, help='custom configuration file')
+
+    ns = parser.parse_args(sys.argv[1:])
+    config_file = ns.config
+
+    config_file, config = get_config(config_file)
     setup_logging(config.get('logging', {}))
-
-    # log.info("Found configuration at '{}':\n{}"
-    #          .format(config_file, pp(config)))
-    log.info("Found configuration at '{}':\n".format(config_file))
+    log.info("Using configuration at '{}':\n".format(config_file))
 
     log.info('Opening LDAP client')
     client = phi.ldap.client.Client(**config['ldap'])