From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Sat, 7 Aug 2010 18:48:53 +0000 (+0200)
Subject: handlers: Add fail_on_exception handler.
X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fprojects%2Fbackupninja.git;a=commitdiff_plain;h=96f1913c89c0d934c9b75ff9fae2c0eda44e4823

handlers: Add fail_on_exception handler.

This decorator is meant for methods on Action subclasses and records
failure when the decorated method throws an exception.
---

diff --git a/src/lib/backupninja/handlers/__init__.py b/src/lib/backupninja/handlers/__init__.py
index dbc403e..29dc756 100644
--- a/src/lib/backupninja/handlers/__init__.py
+++ b/src/lib/backupninja/handlers/__init__.py
@@ -24,6 +24,20 @@ import logging as log
 
 from backupninja import config
 
+def fail_on_exception(f):
+    """
+    This is a decorator meant for methods on the Action class. It
+    catches any exceptions thrown, sets the failed attribute to True and
+    rethrows the exception.
+    """
+    def inner(self, *args, **kwargs):
+        try:
+            f(self, *args, **kwargs)
+        except:
+            self.failed = True
+            raise
+    return inner
+
 class Action(object):
     """
     Subclasses of Action represent handlers for various action types.