#!/bin/bash

main_list=($NEW_PACKAGES)
remove_list=($OLD_PACKAGES)

temp_file=$(mktemp)

for line in "${main_list[@]}"; do
    if ! printf '%s\n' "${remove_list[@]}" | grep -qx "$line"; then
        echo "$line" >> "$temp_file"
    fi
done

echo packages=$(cat $temp_file) >> $GITHUB_OUTPUT
rm "$temp_file"