lardcanoe · September 1, 2016 02:37 · Sep 1, 2016
diff --git a/rollbar_transform.rb b/rollbar_transform.rb
@@ -0,0 +1,31 @@
+def transform_payload(opts)
+  ex_msg = opts[:payload]['data'][:body][:trace][:exception][:message] rescue nil
+  if ex_msg =~ /#<(.*)(:0x[a-f0-9]{8})>$/
+    # Convert
+    # "undefined method `blow_up!' for #<Customer:0x7b417d08>"
+    # to
+    # "undefined method `blow_up!' for #<Customer>"
+    # to prevent rollbar storms when each message has a different hash
+    opts[:payload]['data'][:body][:trace][:exception][:message].gsub! $2, ''
+  end
+
+  frames = opts[:payload]['data'][:body][:trace][:frames] rescue nil
+  frames.each do |f|
+    # Convert '/engine-5b4dd9344243/' to '/engine/' to prevent rollbar from creating new items after each update
+    if f[:filename] =~ /(\-[0-9a-z]{12})\//
+      f[:filename].gsub $1, ''
+    end
+
+    # This next one strips out the unique id in JRuby land that is in the first frame
+    # "org/jruby/gen/InterfaceImpl725942136.gen"
+    if f[:filename] =~ /InterfaceImpl([\d]{8,12})\.gen/
+      f[:filename].gsub $1, ''
+    end
+
+    # This is for our web app, which has the commit in the path, and also causes a new rollbar after each deploy
+    # "/home/user/app/releases/c4c9ac2c2e35a3e9b62a77f5105c22862726b701/Rakefile"
+    if f[:filename] =~ /releases\/([0-9a-f]{36,44})\//
+      f[:filename].gsub $1, 'redacted-commit-id'
+    end
+  end if frames
+end