#!/bin/bash

set -x

basedir="/srv/yggdrasil"
shafile="$basedir""/library.sha256"

option="$1"

if [ "$option" == "-h" ] || [ "$option" == "--help" ]; then
    echo Usage: $0 '[verify]'
    exit 1
fi

if [[ "$option" != "verify" ]]; then
    chmod u+w "$basedir"
    touch "$shafile"
    chmod u+w "$shafile"
    find "$basedir" -type f -exec sha256sum {} \; > "$shafile"
    chmod u-w "$basedir" "$shafile"
    exit 0;
else
    echo "These files have problems:"
    sha256sum -c "$shafile";
    exit $?;
fi