#!/bin/bash
#set -e
#set -x

if [[ "$(which clang-format)" == "" ]]; then
  echo "Please install clang-format on your OS!"
fi

usage () {
  echo "USAGE: format2google [options] <file>"
  echo "       format2google [options] <dir>"
  echo
  echo "OPTIONS:"
  echo "      -h, --help   Print usage"
  echo
}

if [[ $# -eq 1 ]]; then
  case "${1}" in
      -h | --help)
          usage
          exit 0
          ;;
      * )
          input=${1}
          ;;
  esac
else
  usage
  exit 1
fi

file_list=$(find ${input} -name "*.c" -or -name "*.cpp" -or -name "*.scpp" -or -name "*.h" -or -name "*.hpp")

for file in ${file_list}; do
  echo "clang-format formating ${file} ..."
  clang-format -style=file -i ${file}
#   clang-format -style="{BasedOnStyle: google, PointerAlignment: Right, SortIncludes: Never, ColumnLimit: 100}" -i ${file}
done