#!/bin/sh


# MIT LICENSE
#
# Copyright 2018 Koen van Vliet
#
# Permission is hereby granted, free of charge, to any person obtaining a copy 
# of this software and associated documentation files (the "Software"), to deal 
# in the Software without restriction, including without limitation the rights 
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
# copies of the Software, and to permit persons to whom the Software is 
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
# SOFTWARE.


# View difference between 8xp AXE program files for ti8x calculators.
#
# > >>> Using stand alone <<<
# dt-axe FILE1 FILE2
#
# Specify a default diff tool. To override use: DIFF=diff dt-axe FILE1 FILE2
default_diff="git diff"

if [ "$1" == "" ] || [ "$2" == "" ];
then
    echo "Usage: axediff FILE1 FILE2"
    exit
fi

file_a="${1##*/}"
file_b="${2##*/}"
tmp_a=$(mktemp "/tmp/${file_a}.XXXXXX")
tmp_b=$(mktemp "/tmp/${file_b}.XXXXXX")
exec 3>"$tmp_a"
exec 4>"$tmp_b"

if [ "$DIFF" == "" ]; then
    DIFF="$default_diff"
fi

dt-axe $1 >&3
dt-axe $2 >&4

$DIFF $tmp_a $tmp_b

rm "$tmp_a"
rm "$tmp_b"
