#!/usr/bin/perl -w

=head1 NAME

dh_prep - preform cleanups in preparation for building a binary package

=cut

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

=head1 SYNOPSIS

B<dh_prep> [S<I<debhelper options>>] [B<-X>I<item>]

=head1 DESCRIPTION

dh_prep is a debhelper program that performs some file cleanups in
preparation for building a package. (This is what dh_clean -k used to do.)
It removes the package build directories, debian/tmp, and some temp files
that are generated during the build. Putting this at the start of the build
process makes the build process idempotent.

=head1 OPTIONS

=over 4

=item B<-X>I<item> B<--exclude=>I<item>

Exclude files that contain "item" anywhere in their filename from being
deleted, even if they would normally be deleted. You may use this option
multiple times to build up a list of things to exclude.

=back

=cut

init();

foreach my $package (@{$dh{DOPACKAGES}}) {
	my $tmp=tmpdir($package);
	my $ext=pkgext($package);

	doit("rm","-f","debian/${ext}substvars")
		unless excludefile("debian/${ext}substvars");
		
	# These are all debhelper temp files, and so it is safe to 
	# wildcard them.
	complex_doit("rm -f debian/$ext*.debhelper");
	
	doit ("rm","-rf",$tmp."/")
		unless excludefile($tmp);
}

doit('rm', '-rf', 'debian/tmp') if -x 'debian/tmp' && ! compat(1) &&
                                   ! excludefile("debian/tmp");

=head1 SEE ALSO

L<debhelper(7)>

This program is a part of debhelper.

=head1 AUTHOR

Joey Hess <joeyh@debian.org>

=cut