#!/bin/sh
  
  # Copyright 2017 Kaspar Schleiser <kaspar@schleiser.de>
  #
  # This file is subject to the terms and conditions of the GNU Lesser
  # General Public License v2.1. See the file LICENSE in the top level
  # directory for more details.
  
  : ${RIOTBASE:=$(pwd)}
  
  . ${RIOTBASE}/dist/tools/ci/changed_files.sh
  
  EXIT_CODE=0
  
  filter() {
      if [ $QUIET -eq 0 ]; then
          cat
      else
          grep '^---' | cut -f 2 -d ' '
      fi
  }
  
  _headercheck() {
      OUT="$(${RIOTBASE}/dist/tools/headerguards/headerguards.py ${FILES} | filter)"
  
      if [ -n "$OUT" ]; then
          EXIT_CODE=1
          echo "$OUT"
      fi
  }
  
  : ${FILES:=$(FILEREGEX='\.h$' changed_files)}
  
  if [ -z "${FILES}" ]; then
      exit
  fi
  
  : ${QUIET:=0}
  
  if [ -z "$*" ]; then
      _headercheck
  fi
  
  exit $EXIT_CODE