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#!/usr/bin/perl -w
=head1 NAME
dh_installmodules - register kernel modules
=cut
use strict;
use Debian::Debhelper::Dh_Lib;
use File::Find;
=head1 SYNOPSIS
B<dh_installmodules> [S<I<debhelper options>>] [B<-n>] [B<--name=>I<name>]
=head1 DESCRIPTION
B<dh_installmodules> is a debhelper program that is responsible for
registering kernel modules.
Kernel modules are searched for in the package build directory and if
found, F<preinst>, F<postinst> and F<postrm> commands are automatically generated to
run B<depmod> and register the modules when the package is installed.
These commands are inserted into the maintainer scripts by
L<dh_installdeb(1)>.
=head1 FILES
=over 4
=item debian/I<package>.modprobe
Installed to etc/modprobe.d/I<package>.conf in the package build directory.
=back
=head1 OPTIONS
=over 4
=item B<-n>, B<--noscripts>
Do not modify F<preinst>/F<postinst>/F<postrm> scripts.
=item B<--name=>I<name>
When this parameter is used, B<dh_installmodules> looks for and
installs files named debian/I<package>.I<name>.modprobe instead
of the usual debian/I<package>.modprobe
=back
=head1 NOTES
Note that this command is not idempotent. L<dh_prep(1)> should be called
between invocations of this command. Otherwise, it may cause multiple
instances of the same text to be added to maintainer scripts.
=cut
init();
# Looks for kernel modules in the passed directory. If any are found,
# returns the kernel version (or versions) that the modules seem to be for.
sub find_kernel_modules {
my $searchdir=shift;
my %versions;
return unless -d $searchdir;
find(sub {
if (/\.k?o$/) {
my ($kvers)=$File::Find::dir=~m!lib/modules/([^/]+)/!;
if (! defined $kvers || ! length $kvers) {
warning("Cannot determine kernel version for module $File::Find::name");
}
else {
$versions{$kvers}=1;
}
}
}, $searchdir);
return keys %versions;
}
# PROMISE: DH NOOP WITHOUT modprobe tmp(lib/modules)
foreach my $package (@{$dh{DOPACKAGES}}) {
my $tmp=tmpdir($package);
my $modprobe_file=pkgfile($package,"modprobe");
if (! -e $tmp) {
doit("install","-d",$tmp);
}
if ($modprobe_file) {
if (! -e "$tmp/etc/modprobe.d") {
doit("install","-d","$tmp/etc/modprobe.d");
}
my $old="/etc/modprobe.d/".pkgfilename($package);
my $new=$old.".conf";
doit("install","-m","0644",$modprobe_file,"$tmp/$new");
autoscript($package,"preinst","preinst-moveconffile","s!#OLD#!$old!g;s!#PACKAGE#!$package!g");
autoscript($package,"postinst","postinst-moveconffile","s!#OLD#!$old!g;s!#NEW#!$new!g");
}
if (! $dh{NOSCRIPTS}) {
foreach my $kvers (find_kernel_modules("$tmp/lib/modules")) {
autoscript($package,"postinst","postinst-modules","s/#KVERS#/$kvers/g");
autoscript($package,"postrm","postrm-modules","s/#KVERS#/$kvers/g");
}
}
}
=head1 SEE ALSO
L<debhelper(7)>
This program is a part of debhelper.
=head1 AUTHOR
Joey Hess <joeyh@debian.org>
=cut