uncloud cli converted to argparse

uncloud/common/parser.py

@@ -0,0 +1,13 @@
+import argparse
+
+
+class BaseParser:
+    def __init__(self, command):
+        self.arg_parser = argparse.ArgumentParser(command, add_help=False)
+        self.subparser = self.arg_parser.add_subparsers(dest='{}_subcommand'.format(command))
+        self.common_args = {'add_help': False}
+
+        methods = [attr for attr in dir(self) if not attr.startswith('__')
+                   and type(getattr(self, attr)).__name__ == 'method']
+        for method in methods:
+            getattr(self, method)(**self.common_args)