clear error on bad config

dotdrop/cfg_aggregator.py

@@ -17,7 +17,7 @@ from dotdrop.profile import Profile
 from dotdrop.action import Action, Transform
 from dotdrop.logger import Logger
 from dotdrop.utils import strip_home, debug_list, debug_dict
-from dotdrop.exceptions import UndefinedException
+from dotdrop.exceptions import UndefinedException, YamlException
 
 
 TILD = '~'
@@ -41,7 +41,10 @@ class CfgAggregator:
         self.debug = debug
         self.dry = dry
         self.log = Logger(debug=self.debug)
-        self._load()
+        try:
+            self._load()
+        except Exception as exc:
+            raise YamlException(exc) from exc
         self._validate()
 
     ########################################################

tests/test_yamlcfg.py

@@ -12,6 +12,7 @@ import os
 from dotdrop.cfg_yaml import CfgYaml as Cfg
 from dotdrop.options import Options
 from dotdrop.linktypes import LinkTypes
+from dotdrop.exceptions import YamlException
 from tests.helpers import (SubsetTestCase, _fake_args, clean,
                            create_fake_config, create_yaml_keyval, get_tempdir,
                            populate_fake_config, yaml_load, yaml_dump)
@@ -129,7 +130,7 @@ profiles:
         args['--cfg'] = 'mocked'
         args['--verbose'] = True
 
-        with self.assertRaises(ValueError):
+        with self.assertRaises(YamlException):
             o = Options(args=args)
             print(o.import_link)