add gofmt check to Travis CI

diff --git a/.travis.yml b/.travis.yml
index f6082d91cb9bfc6784f1c98f85537d69cc896a5b..ae26b4435ed53a864a19238ca319238ce050d744 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,9 @@ language: go
 go:
   - 1.4
 
+before_script:
+  - FIXED=$(go fmt ./... | wc -l); if [ $FIXED -gt 0 ]; then echo "gofmt - $FIXED file(s) not formatted correctly, please run gofmt to fix this." && exit 1; fi
+
 # not yet https://github.com/travis-ci/travis-ci/issues/2318
 os:
   - linux