#!/usr/bin/env bash

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# git 1.9.0+ allows for exclusions in pathspecs via ':!foo' syntax.
# However, until git 2.13.0 there must be at least one "inclusive" pathspec, hence the './*'
trailing_whitespace=$(git grep -E -n -- ' +$' -- './*' ':!*.png' ':!*.jpg' ':!client/dist/*' ':!client/node_modules/*')

if [[ -n "$trailing_whitespace" ]]; then
  printf "ERROR: Trailing whitespaces:\n"
  awk 'BEGIN {FS=":"} {printf " * %s:%s\n", $1, $2}' <<< "$trailing_whitespace"
  exit 1
fi