#!/bin/sh

# reads a package description script and outputs the attributes in a format easy
# for the snag program to read. it does not do any other validation, and should
# not be used by other programs

if [ -z "$1" ]; then
    echo "Usage: $0 <description script>" >&2
    exit 1
fi

# load the description script
. $1

# output package attributes (type char, value, null delimiter)
echoatt() { [ -n "$2" ] && printf "$1$2\0"; return 0; }
echoatt i "$pkg_id"
echoatt n "$pkg_name"
echoatt d "$pkg_desc"
echoatt w "$pkg_webpage"
echoatt l "$pkg_license"
echoatt v "$pkg_version"
echoatt s "$pkg_source_name"
echoatt u "$pkg_source_url"
echoatt c "$pkg_source_checksum"