From 2701a22db4243495080d53192033f1ef07f7625c Mon Sep 17 00:00:00 2001
From: facetoe <facetoe@ymail.com>
Date: Sat, 28 Mar 2015 19:10:13 +0800
Subject: [PATCH] Add method to truncate long error messages.

---
 i3pystatus/core/threading.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/i3pystatus/core/threading.py b/i3pystatus/core/threading.py
index 6063c54..2465551 100644
--- a/i3pystatus/core/threading.py
+++ b/i3pystatus/core/threading.py
@@ -75,10 +75,18 @@ class ExceptionWrapper(Wrapper):
             sys.stderr.flush()
             if hasattr(self.workload, "output"):
                 self.workload.output = {
-                    "full_text": "{}: {}".format(self.workload.__class__.__name__, sys.exc_info()[1]),
+                    "full_text": "{}: {}".format(self.workload.__class__.__name__,
+                                                 self.format_error(str(sys.exc_info()[1]))),
                     "color": "#FF0000",
                 }
 
+    def format_error(self, exception_message):
+        if hasattr(self.workload, 'max_error_len'):
+            error_len = self.workload.max_error_len
+            return exception_message[:error_len] + '...' if len(exception_message) > error_len else exception_message
+        else:
+            return exception_message
+
 
 class WorkloadWrapper(Wrapper):
     time = 0.0