#!/bin/sh
# -*- mode: shell-script; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
#
# Copyright (C) 2014 O.S. Systems Software LTDA.
# Authored-by:  Otavio Salvador <otavio@ossystems.com.br>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

usage() {
	cat<<EOF
Usage:

 $0 <path> [machine]

 Options:

   path: directory to look for machine definition files
   machine: optinal param to restrict the printing for a specific machine name


EOF
}

path=$1
specific_machine=$2

if [ -z "$1" ]; then
	usage
	return 1
fi

maintained=`mktemp`
orphan=`mktemp`

machines=`find $path -wholename '*/conf/machine/*.conf'`
for m in $machines; do
	machine=`basename $m | sed 's,\.conf$,,g'`
	if [ -n "$specific_machine" ] && [ "$machine" != "$specific_machine" ]; then
		continue
	fi

	name=`sed -n 's,#@NAME:\s*\(.*\)\s*,\1,p' $m`
	maint=`sed -n 's,#@MAINTAINER:\s*\(.*\)\s*,\1,p' $m`

	if [ -n "$maint" ]; then
		printf "%-25s  %-50s  %-50s\n" "$machine" "$name" "$maint" >> $maintained
	else
		printf "%-25s  %-50s  %-50s\n" "$machine" "$name" "Orphan" >> $orphan
	fi
done

cat <<EOF
=========================  ==================================================  ==================================================
         Machine             Name                                               Maintainer
=========================  ==================================================  ==================================================
EOF
sort -u -k 2 $maintained | grep -v $^

sort -u -k 2 $orphan | grep -v $^

cat <<EOF
=========================  ==================================================  ==================================================
EOF
rm $maintained $orphan