Add device-table.pl helper script.
git-svn-id: http://emdebian.org/svn/current@7042 563faec7-e20c-0410-992a-a66f704d0ccd
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144
device-table.pl
Executable file
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device-table.pl
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#!/usr/bin/perl
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# Copyright (C) 2010 Neil Williams <codehelp@debian.org>
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#
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# This package is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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use strict;
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use warnings;
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use POSIX qw(locale_h);
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use Locale::gettext;
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use vars qw/ @list @seq $file $dir $line @cmd $i $dry
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$msg $progname $ourversion $fakeroot /;
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@list =();
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@seq = ();
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setlocale(LC_MESSAGES, "");
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textdomain("multistrap");
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$progname = basename($0);
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$ourversion = &our_version();
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# default file from mtd-utils.
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$file = "/usr/share/multistrap/device-table.txt";
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$dir = `pwd`;
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$fakeroot = "fakeroot";
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while( @ARGV ) {
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$_= shift( @ARGV );
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last if m/^--$/;
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if (!/^-/) {
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unshift(@ARGV,$_);
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last;
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}
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elsif (/^(-\?|-h|--help|--version)$/) {
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&usageversion();
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exit( 0 );
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}
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elsif (/^(-f|--file)$/) {
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$file = shift(@ARGV);
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}
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elsif (/^(-d|--dir)$/) {
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$dir = shift(@ARGV);
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}
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elsif (/^(-n|--dry-run)$/) {
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$dry++;
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}
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elsif (/^(--no-fakeroot)$/) {
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$fakeroot="";
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}
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else {
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die "$progname: "._g("Unknown option")." $_.\n";
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}
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}
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$msg = sprintf (_g("Need a configuration file - use %s -f\n"), $progname);
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die ($msg)
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if (-f $file);
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my $ret = mkdir ("$dir") if (not -d "$dir");
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die ("Unable to create directory '$dir'\n")
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if ($ret == 0);
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$dir = `realpath $dir`;
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chomp ($dir);
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$dir .= ($dir =~ m:/$:) ? '' : "/";
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printf (_g("%s %s using %s\n"), $progname, $ourversion, $file);
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open (TABLE, "<", $file) or die ("$file: $!\n");
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@list=<TABLE>;
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close (TABLE);
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foreach $line (@list)
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{
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chomp ($line);
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next if ($line =~ /^#/);
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next if ($line =~ /^$/);
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@cmd = split (/\t/, $line);
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next if ($cmd[2] eq "d");
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if ($cmd[9] =~ /-/)
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{
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push @seq, "mknod -m $cmd[2] $cmd[0] $cmd[1] $cmd[5] $cmd[6]";
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}
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else
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{
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for ($i = 0; $i < $cmd[9]; $i += $cmd[8])
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{
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push @seq, "mknod -m $cmd[2] $cmd[0]$i $cmd[1] $cmd[5] $cmd[6]";
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}
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}
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}
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if (defined $dry)
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{
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print join ("\n", @seq);
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print "\n";
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}
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else
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{
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chdir ("$dir");
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system ("pwd");
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foreach my $node (@seq)
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{
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system ("$fakeroot $node");
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}
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}
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sub our_version {
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my $query = `dpkg-query -W -f='\${Version}' multistrap`;
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(defined $query) ? return $query : return "0.0.9";
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}
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=pod
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=head1 Name
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device-table.pl - parses simple device tables and passes to mknod
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=head1 Synopsis
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device-table.pl [-d DIR] [-f FILE]
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device-table.pl -?|-h|--help|--version
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=head1 Options
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By default, device-table.pl writes out the device nodes in the current
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working directory. Use the directory option to write out elsewhere.
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multistrap contains a default device-table file, use the file option
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to override the default /usr/share/multistrap/device-table.txt
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Use the dry-run option to see the commands that would be run.
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Device nodes needs fakeroot or another way to use root access. If
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device-table.pl is already being run under fakeroot or equivalent,
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use the no-fakeroot option to drop the internal fakeroot usage.
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=cut
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