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Add device-table.pl helper script.

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git-svn-id: http://emdebian.org/svn/current@7042 563faec7-e20c-0410-992a-a66f704d0ccd
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codehelp 2010-04-05 18:36:39 +00:00
parent 333b9d16a8
commit 680cf034b1
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device-table.pl Executable file
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#!/usr/bin/perl
# Copyright (C) 2010 Neil Williams <codehelp@debian.org>
#
# This package 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 3 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, see <http://www.gnu.org/licenses/>.
use strict;
use warnings;
use POSIX qw(locale_h);
use Locale::gettext;
use vars qw/ @list @seq $file $dir $line @cmd $i $dry
$msg $progname $ourversion $fakeroot /;
@list =();
@seq = ();
setlocale(LC_MESSAGES, "");
textdomain("multistrap");
$progname = basename($0);
$ourversion = &our_version();
# default file from mtd-utils.
$file = "/usr/share/multistrap/device-table.txt";
$dir = `pwd`;
$fakeroot = "fakeroot";
while( @ARGV ) {
$_= shift( @ARGV );
last if m/^--$/;
if (!/^-/) {
unshift(@ARGV,$_);
last;
}
elsif (/^(-\?|-h|--help|--version)$/) {
&usageversion();
exit( 0 );
}
elsif (/^(-f|--file)$/) {
$file = shift(@ARGV);
}
elsif (/^(-d|--dir)$/) {
$dir = shift(@ARGV);
}
elsif (/^(-n|--dry-run)$/) {
$dry++;
}
elsif (/^(--no-fakeroot)$/) {
$fakeroot="";
}
else {
die "$progname: "._g("Unknown option")." $_.\n";
}
}
$msg = sprintf (_g("Need a configuration file - use %s -f\n"), $progname);
die ($msg)
if (-f $file);
my $ret = mkdir ("$dir") if (not -d "$dir");
die ("Unable to create directory '$dir'\n")
if ($ret == 0);
$dir = `realpath $dir`;
chomp ($dir);
$dir .= ($dir =~ m:/$:) ? '' : "/";
printf (_g("%s %s using %s\n"), $progname, $ourversion, $file);
open (TABLE, "<", $file) or die ("$file: $!\n");
@list=<TABLE>;
close (TABLE);
foreach $line (@list)
{
chomp ($line);
next if ($line =~ /^#/);
next if ($line =~ /^$/);
@cmd = split (/\t/, $line);
next if ($cmd[2] eq "d");
if ($cmd[9] =~ /-/)
{
push @seq, "mknod -m $cmd[2] $cmd[0] $cmd[1] $cmd[5] $cmd[6]";
}
else
{
for ($i = 0; $i < $cmd[9]; $i += $cmd[8])
{
push @seq, "mknod -m $cmd[2] $cmd[0]$i $cmd[1] $cmd[5] $cmd[6]";
}
}
}
if (defined $dry)
{
print join ("\n", @seq);
print "\n";
}
else
{
chdir ("$dir");
system ("pwd");
foreach my $node (@seq)
{
system ("$fakeroot $node");
}
}
sub our_version {
my $query = `dpkg-query -W -f='\${Version}' multistrap`;
(defined $query) ? return $query : return "0.0.9";
}
=pod
=head1 Name
device-table.pl - parses simple device tables and passes to mknod
=head1 Synopsis
device-table.pl [-d DIR] [-f FILE]
device-table.pl -?|-h|--help|--version
=head1 Options
By default, device-table.pl writes out the device nodes in the current
working directory. Use the directory option to write out elsewhere.
multistrap contains a default device-table file, use the file option
to override the default /usr/share/multistrap/device-table.txt
Use the dry-run option to see the commands that would be run.
Device nodes needs fakeroot or another way to use root access. If
device-table.pl is already being run under fakeroot or equivalent,
use the no-fakeroot option to drop the internal fakeroot usage.
=cut