#!/usr/bin/env bash

set -eu -o pipefail

case ${1:-} in
    '')
	gogo_version=$(awk '$1 == "github.com/gogo/protobuf" { print $2 }' vendor.conf)
	docker build --build-arg GOGO_VERSION=$gogo_version -f ./hack/dockerfiles/generated-files.Dockerfile --target validate --force-rm .
	;;
    check)
	diffs="$(git status --porcelain -- **/*.pb.go 2>/dev/null)"
	set +x
	if [ "$diffs" ] ; then
	    {
		echo 'The result of "go generate" differs'
		echo
		echo "$diffs"
		echo
		echo 'Please update with "make generated-files"'
		echo
	    } >&2
	    false
	fi
	echo 'Congratulations! All auto generated files are correct.'
	;;
esac