#!/bin/sh
usage() {
    echo "Usage: $0 [-h|--help|-m <machine>|<architecture>]"
    echo
    echo "Performs an ldap query against db.debian.org to retrieve information"
    echo "about computers admined by Debian."
    echo
    echo "If <architecture> is given, only list porter systems for that architecture."
    echo "If no arguments are given, list all porter systems."
    echo
    echo "  -h,--help    Print this help and exit"
    echo "  -m <machine> Retrieve the full stanza for a specific machine"
    exit $1
}

if [ $# -ge 1 ]; then
    case "$1" in
        -h|--help)
            usage 0
            ;;
        -m)
            shift;
            if [ -z "$1" ]; then
                usage 1
            fi
            FILTER="(host=$1)"
            ATTR=
            ;;
        *)
            FILTER="(&(architecture=$1) (purpose=porterbox))"
            ATTR="host distribution status sshRSAHostKey"
            ;;
    esac
else
    FILTER="(purpose=porterbox)"
    ATTR="host distribution status sshRSAHostKey"
fi
ldapsearch -x -H ldap://db.debian.org -b ou=hosts,dc=debian,dc=org "$FILTER" $ATTR | grep -v '^\(dn\|#\)'