From: Zac Medico <zmedico@gentoo.org>
Date: Fri, 2 Aug 2013 18:03:49 +0000 (-0700)
Subject: _argparse: support add_argument_group
X-Git-Tag: v2.2.0_alpha192~20
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=bfdc03077c6b85df207c6109a57a7af7d5e5676a;p=portage.git

_argparse: support add_argument_group
---

diff --git a/pym/portage/util/_argparse.py b/pym/portage/util/_argparse.py
index 4227f4c47..a44afed7b 100644
--- a/pym/portage/util/_argparse.py
+++ b/pym/portage/util/_argparse.py
@@ -7,7 +7,7 @@ try:
 	from argparse import ArgumentParser
 except ImportError:
 	# Compatibility with Python 2.6 and 3.1
-	from optparse import OptionParser
+	from optparse import OptionGroup, OptionParser
 
 	class ArgumentParser(object):
 		def __init__(self, **kwargs):
@@ -15,6 +15,16 @@ except ImportError:
 			if add_help is not None:
 				kwargs["add_help_option"] = add_help
 			parser = OptionParser(**kwargs)
+			self._parser = parser
 			self.add_argument = parser.add_option
 			self.parse_known_args = parser.parse_args
 			self.parse_args = parser.parse_args
+
+		def add_argument_group(self, title=None, **kwargs):
+			optiongroup = OptionGroup(self._parser, title, **kwargs)
+			self._parser.add_option_group(optiongroup)
+			return _ArgumentGroup(optiongroup)
+
+	class _ArgumentGroup(object):
+		def __init__(self, optiongroup):
+			self.add_argument = optiongroup.add_option