#!/bin/bash
# usage: compare-diffs.sh [-d <output-dir>] <differ-A> <differ-B>

set -e

while getopts d: opt; do
    case $opt in
      d) output_dir="$OPTARG"
    esac
done

shift $((OPTIND - 1))

A=${1:-geth}
B=${2:-plugeth}

if [[ -z "$output_dir" ]]; then
  output_dir=$(mktemp -d)
fi

A_OUTPUT="$output_dir/A"
B_OUTPUT="$output_dir/B"

./dumpdiff.$A $A_OUTPUT
./dumpdiff.$B $B_OUTPUT

tmpfile=$(mktemp)

for file in $(ls $A_OUTPUT); do
  for dir in "$A_OUTPUT" "$B_OUTPUT"; do
    sort -u "$dir/$file" > $tmpfile
    mv $tmpfile "$dir/$file"
  done
  (set -x; diff "${A_OUTPUT}/$file" "${B_OUTPUT}/$file")
done