From d2c807e4c2bb353343485eb14a143e19f828c653 Mon Sep 17 00:00:00 2001
From: Guido Trotter <ultrotter@google.com>
Date: Mon, 5 Nov 2007 00:42:50 +0000
Subject: [PATCH] Create OS from an InvalidOS error
Add a new FromInvalidOS static function to objects.OS that makes it easy to
create an object representing a broken OS starting from the relevant exception.
Reviewed-By: iustinp
---
lib/objects.py | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/lib/objects.py b/lib/objects.py
index 2f27a270e..c5e7f4a07 100644
--- a/lib/objects.py
+++ b/lib/objects.py
@@ -597,6 +597,20 @@ class OS(ConfigObject):
"rename_script",
]
+ @classmethod
+ def FromInvalidOS(cls, err):
+ """Create an OS from an InvalidOS error.
+
+ This routine knows how to convert an InvalidOS error to an OS
+ object representing the broken OS with a meaningful error message.
+
+ """
+ if not isinstance(err, errors.InvalidOS):
+ raise errors.ProgrammerError("Trying to initialize an OS from an"
+ " invalid object of type %s" % type(err))
+
+ return cls(name=err.args[0], path=err.args[1], status=err.args[2])
+
def __nonzero__(self):
return self.status == constants.OS_VALID_STATUS
--
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