#!/bin/sh

SEP=`printf '\t'`

OUTPUT=/dev/stderr

CWD=`pwd`

SRCDIR=`dirname $0`

run_lint() {

  eslint -f unix "$@" .

}

parse_opts() {

  tmp=`getopt -l output: o: "$@"`

  [ $? -ne 0 ] && exit 1

  eval set -- $tmp

  while true

  do

    case $1 in

      --output|-o)

        OUTPUT=`realpath $2`; shift 2; continue ;;

      --)

        shift; break ;;

    esac

  done

}

# delete lines that don't start with '/',

# replace the first space with tab, sort

process_for_join() {

  sed -E "/\//!d; s|(\S+)\s|\1$SEP|" | sort -k 1b,1

}

# re-replace tab with space

process_post_join() {

  sed -E "s|$SEP| |"

}

create_report() {

  tmp1=`mktemp --tmpdir lint-XXXX`

  run_lint | process_for_join > $tmp1

  tmp2=`mktemp --tmpdir lint-XXXX`

  run_lint -c lint/eslintrc-legacy.json | process_for_join > $tmp2

  join -t"$SEP" -o '0,1.2' $tmp1 $tmp2 | process_post_join

  rm $tmp1 $tmp2

}

parse_opts "$@"

cd $SRCDIR/..

create_report | tee $OUTPUT | grep -q .

rv=$(( $? == 0 ))

cd $CWD

[ $rv -eq 0 -a -f $OUTPUT ] && rm $OUTPUT

exit $rv