Fix travis kyaml exit and targets

- properly exit non-0 if there are any uncommitted files
- make functions/examples targes
- add missing licenses
- refactor into loop

functions/examples/template-heredoc-cockroachdb/Makefile

@@ -7,6 +7,8 @@ license:
 	(which $(GOPATH)/bin/addlicense || go get github.com/google/addlicense)
 	$(GOPATH)/bin/addlicense  -y 2019 -c "The Kubernetes Authors." -f LICENSE_TEMPLATE .
 
+all: license
+
 image:
 	docker build image -t gcr.io/kustomize-functions/example-cockroachdb:v0.1.0
 	docker push gcr.io/kustomize-functions/example-cockroachdb:v0.1.0

functions/examples/validator-kubeval/image/Dockerfile

@@ -1,3 +1,6 @@
+# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
 FROM alpine:latest as schemas
 RUN apk --no-cache add git
 RUN git clone --depth 1 https://github.com/instrumenta/kubernetes-json-schema.git

travis/consider-early-travis-exit.sh

@@ -1,3 +1,6 @@
+# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
 # Exits with status 0 if it can be determined that the
 # current PR should not trigger all travis checks.
 #

travis/kyaml-pre-commit.sh

@@ -1,16 +1,21 @@
 #!/bin/bash
+# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
 set -e
 
-cd kyaml
-make all
-
-cd ../cmd/config
-make all
-
-cd ../kubectl
-make all
+# run all tests for kyaml and related commands
+targets="kyaml cmd/config cmd/kubectl functions/examples/injection-tshirt-sizes functions/examples/template-go-nginx functions/examples/template-heredoc-cockroachdb functions/examples/validator-kubeval functions/examples/validator-resource-requests"
+for target in $targets; do
+  pushd .
+  cd $target
+  make all
+  popd
+done
 
 # make sure no files were generated or changed by make
-cd ../..
+# ignore changes to go.mod and go.sum -- they are too flaky
+find . -name go.mod | xargs git checkout --
+find . -name go.sum | xargs git checkout --
 git add .
-git diff-index HEAD --
+git diff-index HEAD --exit-code