#!/usr/bin/perl -w

=head1 NAME

dh_auto_clean - automatically cleans up after a build

=cut

use strict;
use Debian::Debhelper::Dh_Lib;

=head1 SYNOPSIS

B<dh_auto_clean> [S<I<debhelper options>>] [S<B<--> I<params>>]

=head1 DESCRIPTION

dh_auto_clean is a debhelper program that tries to automatically clean up
after a package build. If there's a Makefile and it contains a "distclean",
"realclean", or "clean" target, then this is  done by running make (or MAKE,
if the environment variable is set). If there is a setup.py or Build.PL, it
is run to clean the package.

This is intended to work for about 90% of packages. If it doesn't work, or
tries to use the wrong clean target, you're encoruaged to skip using
dh_auto_clean at all, and just run make clean manually.

=head1 OPTIONS

=over 4

=item B<--> I<params>

Pass "params" to the program that is run. These can be used to suppliment
or override the any standard parameters that dh_auto_clean passes.

=back

=cut

init();

if (-e "Makefile" || -e "makefile" || -e "GNUmakefile") {
	$ENV{MAKE}="make" unless exists $ENV{MAKE};
	foreach my $target (qw{distclean realclean clean}) {
		# Use make -n to check to see if the target would do
		# anything. There's no good way to test if a target exists.
		my $ret=`$ENV{MAKE} -s -n $target 2>/dev/null`;
		chomp $ret;
		if (length $ret) {
			doit($ENV{MAKE}, $target, @{$dh{U_PARAMS}});
			last;
		}
	}
}
elsif (-e "setup.py") {
	doit("python", "setup.py", "clean", "-a", @{$dh{U_PARAMS}});
}
elsif (-e "Build.PL" && -e "Build") {
	doit("perl", "Build", "--allow_mb_mismatch", 1, "distclean", @{$dh{U_PARAMS}});
}

=head1 SEE ALSO

L<debhelper(7)>

This program is a part of debhelper.

=head1 AUTHOR

Joey Hess <joeyh@debian.org>

=cut