#!/bin/zsh

cd /srv/CGAL/www/testsuite

if [ -z "$1" -o -z "$2" ]; then
  printf "Example usage: %s 4.5-I-149 4.6-Ic-30 [DIFF_OPTION]...\n" "$0"
  exit 1
fi

from="CGAL-$1"
to="CGAL-$2"
pager=${PAGER:-less}

shift
shift

if ! [ -e "./$from" ]; then
  printf "The CGAL release %s was not tested!\n" "$from"
  exit 1
fi
if ! [ -e "./$to" ]; then
  printf "The CGAL release %s was not tested!\n" "$to"
  exit 1
fi

for f in ${from}/results*txt; do diff -U0 ${1+"$@"} $f ${f/$from/$to}; done |& less -p '^\+[^\+].* [^y]|CGAL-.*|diff'