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#!/usr/bin/perl
=head1 NAME
dh_installmodules - register kernel modules
=cut
use strict;
use warnings;
use Debian::Debhelper::Dh_Lib;
use File::Find;
our $VERSION = DH_BUILTIN_VERSION;
=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<--no-scripts>
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 sort(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 ($modprobe_file) {
my $path = '/etc/modprobe.d/' . pkgfilename($package) . '.conf';
install_dir("$tmp/etc/modprobe.d");
install_file($modprobe_file, "$tmp/$path");
}
if (! $dh{NOSCRIPTS}) {
foreach my $kvers (find_kernel_modules("$tmp/lib/modules")) {
autoscript($package, 'postinst', 'postinst-modules', { 'KVERS' => $kvers });
autoscript($package, 'postrm', 'postrm-modules', { 'KVERS' => $kvers });
}
}
}
=head1 SEE ALSO
L<debhelper(7)>
This program is a part of debhelper.
=head1 AUTHOR
Joey Hess <joeyh@debian.org>
=cut
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