#!/bin/sh
set -e
old_dir=$PWD
new_dir=`mktemp -d`

cleanup() {
  rm -rf "$new_dir"
}
trap cleanup EXIT

cp -r . "$new_dir"
cd "$new_dir"

checkgen() {
  $1
  if ! diff -r . "$old_dir"
  then
    echo $2 1>&2
    return 1
  fi
}

checkgen 'go generate ./...' 'Generated files not up-to-date. Please run go generate.'
checkgen 'go fmt ./...' '.go files not formatted. Please run go fmt.'
go vet ./...
go test ./...