#!/bin/sh

set -e
set -u

fatal () {
    echo "$@" >&2
    exit 1
}

archive="$1"
shift

if ! [ -f "$archive" ]; then
    fatal "No such file: $archive"
fi


ok=0

for item in "$@"; do
    oIFS="$IFS"; IFS=':'
    set -- $item
    m="$1"
    v="$2"
    IFS="$oIFS"
    case "$m" in
        sha1|sha256|md5)
            printf "$m: $archive: "
            sum=`${m}sum "$archive" | awk '{print $1}'`
            if [ "$sum" = "$v" ]; then
                echo "OK"
            else
                echo "FAILED (got:$sum, expected:$v)"
                ok=1
            fi
        ;;
        size)
            printf "$m: $archive: "
            size=`stat -c '%s' "$archive"`
            if [ "$size" = "$v" ]; then
                echo "OK"
            else
                echo "FAILED (got:$size, expected:$v)"
                ok=1
            fi
        ;;
        *)
            fatal "Unsupported method: $m"
        ;;
    esac
done

exit $ok