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#!/usr/bin/perl -w
#
# Copyright (C) 1997-2003 Sistina Software, Inc. All rights reserved.
# Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
##
## This script removes <IfDefine foo> sections from the
## Apache httpd.conf file. This is quite useful because we
## don't have any direct access to the parsed configuration
## file of the httpd server.
##
## Usage: ./httpd-parse-config.pl -Dfoo1 -Dfoo2 < httpd.conf
## where fooX are defines as passed to the httpd server
##
## Note: All whitespace characters at the beginning and end
## of lines are removed.
##
use strict;
my @defines = ();
## Default behaviour is to show all lines when we are not
## in the <IfDefine foo> sections.
my @show = (1);
sub testIfDefine($) {
my $param = $1;
my $positiveTest = 1;
if ($param =~ /^!(.*)$/) {
$param = $1;
$positiveTest = 0;
}
foreach my $def (@defines) {
if ($def eq $param) {
return $positiveTest;
}
}
return (1-$positiveTest);
}
foreach my $arg (@ARGV) {
if ($arg =~ /^-D(.*)$/) {
push(@defines, $1);
}
}
## Parse config file and remove IfDefine sections
while (my $line = <STDIN>) {
chomp($line);
$line =~ s/^\s*(.*?)\s*$/$1/;
if ($line =~ /<IfDefine (.*)>/) {
if (testIfDefine($1) == 1) {
if ($show[$#show] == 1) {
push (@show, 1);
} else {
push (@show, 0);
}
} else {
push (@show, 0);
}
} elsif ($line =~ /<\/IfDefine>/) {
pop(@show);
} elsif ($show[$#show] == 1) {
print $line, "\n";
}
}
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