Record coverage profiles in Travis builds

.travis.yml

@@ -4,3 +4,5 @@ go:
 go_import_path: github.com/coreos/kube-aws
 script:
   - make test
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

Makefile

@@ -9,6 +9,8 @@ format:
 
 .PHONY: test
 test: build
-	test -z "$$(find . -path ./vendor -prune -type f -o -name '*.go' -exec gofmt -d {} + | tee /dev/stderr)"
-	go test -v $$(go list ./... | grep -v '/vendor/')
-	go vet $$(go list ./... | grep -v '/vendor/')
+	./test
+
+.PHONY: test-with-cover
+test-with-cover: build
+	./test with-cover

test

@@ -1,4 +1,26 @@
 #!/bin/bash
 set -euo pipefail
 
-go test $(go list ./... | grep -v '/vendor/')
+default() {
+  test -z "$(find . -path ./vendor -prune -type f -o -name '*.go' -exec gofmt -d {} + | tee /dev/stderr)"
+  go test -v $(go list ./... | grep -v '/vendor/')
+  go vet $(go list ./... | grep -v '/vendor/')
+}
+
+with-cover() {
+  test -z "$(find . -path ./vendor -prune -type f -o -name '*.go' -exec gofmt -d {} + | tee /dev/stderr)"
+  for d in $(go list ./... | grep -v '/vendor/'); do
+    go test -v --race -coverprofile=profile.out -covermode=atomic $d
+    if [ -f profile.out ]; then
+      cat profile.out >> coverage.txt
+      rm profile.out
+    fi
+  done
+  go vet $(go list ./... | grep -v '/vendor/')
+}
+
+if [ -z ${1+x} ]; then
+  default
+else
+  "$@"
+fi