1#!/bin/sh
2# $NetBSD: rcorder-visualize.sh,v 1.5 2009/08/09 17:08:53 apb Exp $
3#
4# Copyright (c) 2009 by Joerg Sonnenberger
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12# 2. Redistributions in binary form must reproduce the above copyright
13#    notice, this list of conditions and the following disclaimer in the
14#    documentation and/or other materials provided with the distribution.
15#
16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# $FreeBSD: head/sbin/rcorder/rcorder-visualize.sh 309625 2016-12-06 15:49:39Z vangyzen $
28#
29# Simple script to show the dependency graph for rc scripts.
30# Output is in the dot(1) language and can be rendered using
31#	sh rcorder-visualize | dot -T svg -o rcorder.svg
32# dot(1) can be found in graphics/graphviz in pkgsrc.
33
34rc_files=${*:-/etc/rc.d/*}
35
36{
37echo ' digraph {'
38for f in $rc_files; do
39< $f awk '
40/# PROVIDE: /	{ provide = $3 }
41/# REQUIRE: /	{ for (i = 3; i <= NF; i++) requires[$i] = $i }
42/# BEFORE: /	{ for (i = 3; i <= NF; i++) befores[$i] = $i }
43
44END {
45	print "    \"" provide "\";"
46	for (x in requires) print "    \"" provide "\"->\"" x "\";"
47	for (x in befores) print "    \"" x "\"->\"" provide "\";"
48}
49'
50done
51echo '}'
52}
53