#!/usr/bin/env bash
set -eu
init_tags=$BIZ_ROOT/Biz/Ide/init_tags.sh

old=$1
new=$2

# filter out only the changed haskell files
changed=($(git diff --diff-filter=d --name-only $old $new -- '*.hs'))

if [[ ! -r tags ]]
then
    $init_tags
elif [[ ${#changed} -gt 0 ]]
then
    $init_tags $changed
fi