#!/usr/bin/perl

use Getopt::Long;

use strict;

&main();

sub main

{

	my($dev_output, $ndev_output, $loc) = ("-", "-", ".");

	&Getopt::Long::Configure(qw(bundling));

	&GetOptions(

		"D=s" => \$dev_output,

		"N=s" => \$ndev_output,

		"L=s" => \$loc,

	);

	my($dev, $ndev) = &scan($loc);

	&output($dev, $ndev, $dev_output, $ndev_output);

}

sub scan

{

	my $loc = shift @_;

	my(@dev, @ndev);

	foreach $_ (`find "$loc"`)

	{

		chomp $_;

		if (-d $_ && !-l $_) {

			# Generate directory list later.

			next;

		}

		my $is_devel =

			m{^\Q$loc\E.*/Kconfig} ||

			m{^\Q$loc\E.*/Kbuild} ||

			m{^\Q$loc\E.*/Makefile} ||

			m{^\Q$loc\E/arch/[^/]+/boot/dts/include/dt-bindings\b} ||

			m{^\Q$loc\E/arch/[^/]+/include\b} ||

			m{^\Q$loc\E/arch/.*/module\.lds\b} ||

			m{^\Q$loc\E/arch/arm/[^/]+/include/mach\b} ||

			m{^\Q$loc\E/arch/arm/[^/]+/include/plat\b} ||

			m{^\Q$loc\E/arch/[^/]+/scripts\b} ||

			m{^\Q$loc\E/arch/[^/]+/tools\b} ||

			m{^\Q$loc\E/include/[^/]+\b} ||

			m{^\Q$loc\E/scripts\b};

		if (substr($_, 0, 1) ne "/") {

			# We cannot use an absolute path during find,

			# but rpm wants one later.

			$_ = "/$_";

		}

		$is_devel ? push(@dev, $_) : push(@ndev, $_);

	}

	push(@dev, &calc_dirs("/$loc", \@dev));

	push(@ndev, &calc_dirs("/$loc", \@ndev));

	return (\@dev, \@ndev);

}

sub calc_dirs

{

	my($base, $files) = @_;

	my %dirs;

	foreach my $file (@$files) {

		my $path = $file;

		do {

			$path =~ s{/[^/]+$}{};

			$dirs{$path} = 1;

		} while ($path ne $base and $path ne "");

		# This loop also makes sure that $base itself is included.

	}

	return map { "\%dir $_" } keys %dirs;

}

sub output

{

	my($dev, $ndev, $dev_out, $ndev_out) = @_;

	local *FH;

	open(FH, "> $dev_out") || warn "Error writing to $dev_out: $!";

	print FH join("\n", @$dev), "\n";

	close FH;

	open(FH, "> $ndev_out") || warn "Error writing to $ndev_out: $!";

	print FH join("\n", @$ndev), "\n";

	close FH;

}