From b1e29e50a78c929b38e88802f734b40565929195 Mon Sep 17 00:00:00 2001
From: Rob Vermaas <rob.vermaas@gmail.com>
Date: Tue, 24 Sep 2013 12:01:40 -0400
Subject: [PATCH] Only send email notification of evaluation error when the
 evaluation error has changed. Fixes #121.

---
 src/script/hydra-evaluator | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/script/hydra-evaluator b/src/script/hydra-evaluator
index 234c974e..646407a2 100755
--- a/src/script/hydra-evaluator
+++ b/src/script/hydra-evaluator
@@ -41,12 +41,16 @@ sub fetchInputs {
 
 sub setJobsetError {
     my ($jobset, $errorMsg) = @_;
+    my $prevError = $jobset->errormsg;
+
     eval {
         txn_do($db, sub {
             $jobset->update({errormsg => $errorMsg, errortime => time});
         });
     };
-    sendJobsetErrorNotification($jobset, $errorMsg);
+    if ($errorMsg ne $prevError) {
+        sendJobsetErrorNotification($jobset, $errorMsg);
+    }
 }