#!/usr/bin/perl -w

=head1 NAME

dh_gencontrol - generate and install control file

=cut

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

=head1 SYNOPSIS

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

=head1 DESCRIPTION

dh_gencontrol is a debhelper program that is responsible for generating
control files, and installing them into the DEBIAN directory with the
proper permissions.

This program is merely a wrapper around L<dpkg-gencontrol(1)>, which calls
it once for each package being acted on, and passes in some additional
useful flags.

=head1 OPTIONS

=over 4

=item B<-u>I<params>, B<--dpkg-gencontrol-params>=I<params>

=item B<--> I<params>

Pass "params" to L<dpkg-gencontrol(1)>.

=back

=cut

init(options => {
	"dpkg-gencontrol-params=s", => \$dh{U_PARAMS},
});

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

	my $substvars="debian/${ext}substvars";
	
	my $changelog=pkgfile($package,'changelog');
	if (! $changelog) {
		$changelog='debian/changelog';
	}

	if ( ! -d "$tmp/DEBIAN" ) {
		doit("install","-o",0,"-g",0,"-d","$tmp/DEBIAN");
	}

	# avoid gratuitous warning
	if (! -e $substvars || system("grep -q '^misc:Depends=' $substvars") != 0) {
		complex_doit("echo misc:Depends= >> $substvars");
	}
	
	# Generate and install control file.
	my @command="dpkg-gencontrol";
	if (getpackages() > 1) {
		push @command, "-p$package";
	}
	doit(@command, "-l$changelog", "-T$substvars", 
		"-P$tmp",@{$dh{U_PARAMS}});

	# This chmod is only necessary if the user sets the umask to
	# something odd.
	doit("chmod","644","$tmp/DEBIAN/control");
	
	doit("chown","0:0","$tmp/DEBIAN/control");
}

=head1 SEE ALSO

L<debhelper(7)>

This program is a part of debhelper.

=head1 AUTHOR

Joey Hess <joeyh@debian.org>

=cut