--root.v => -v, --int ROOT.INT => --int INT

tiramisu_cmdline_parser/tiramisu_cmdline_parser.py

@@ -15,7 +15,7 @@
 
 
 from typing import Union, List, Optional
-from argparse import ArgumentParser, Namespace, SUPPRESS, _HelpAction
+from argparse import ArgumentParser, Namespace, SUPPRESS, _HelpAction, HelpFormatter
 try:
     from tiramisu import Config
     from tiramisu.error import PropertiesOptionError
@@ -61,6 +61,15 @@ class TiramisuNamespace(Namespace):
         return super().__getattribute__(key)
 
 
+class TiramisuHelpFormatter(HelpFormatter):
+    def _get_default_metavar_for_optional(self,
+                                          action):
+        ret = super()._get_default_metavar_for_optional(action)
+        if '.' in ret:
+            ret = ret.split('.', 1)[1]
+        return ret
+
+
 class _TiramisuHelpAction(_HelpAction):
     needs = False
     def __call__(self, *args, **kwargs):
@@ -79,6 +88,7 @@ class TiramisuCmdlineParser(ArgumentParser):
                  **kwargs):
         self.fullpath = fullpath
         self.config = config
+        kwargs['formatter_class'] = TiramisuHelpFormatter
         super().__init__(*args, **kwargs)
         self.register('action', 'help', _TiramisuHelpAction)
         self._config_to_argparser(_forhelp,
@@ -170,7 +180,7 @@ class TiramisuCmdlineParser(ArgumentParser):
             properties = obj.property.get()
             kwargs = {'help': option.doc().replace('%', '%%')}
             if option.issymlinkoption():
-                actions[option.name(follow_symlink=True)][0].insert(0, self._gen_argument(name, properties))
+                actions[option.name(follow_symlink=True)][0].insert(0, self._gen_argument(option.name(), properties))
                 continue
             if 'positional' in properties:
                 if not 'mandatory' in properties:
@@ -224,7 +234,6 @@ class TiramisuCmdlineParser(ArgumentParser):
         for args, kwargs in actions.values():
             group.add_argument(*args, **kwargs)
 
-
     def parse_args(self,
                    *args,
                    valid_mandatory=True,
@@ -236,7 +245,7 @@ class TiramisuCmdlineParser(ArgumentParser):
         except PropertiesOptionError as err:
             name = err._option_bag.option.impl_getname()
             properties = self.config.option(name).property.get()
-            if 'positional' not in properties:
+            if self.fullpath and 'positional' not in properties:
                 if len(name) == 1 and 'longargument' not in properties:
                     name = self.prefix_chars + name
                 else:
@@ -256,6 +265,8 @@ class TiramisuCmdlineParser(ArgumentParser):
                     args = self._gen_argument(name, self.config.option(key).property.get())
                 else:
                     args = key
+                if not self.fullpath and '.' in args:
+                    args = args.rsplit('.', 1)[1]
                 self.error('the following arguments are required: {}'.format(args))
         return namespaces