dh_epicsdep

#!/usr/bin/perl

=head1 NAME

dh_epicsdep - Generate EPICS dependency information

=cut


use strict;
use Debian::Debhelper::Dh_Lib;
use Parse::DebControl;

=head1 SYNOPSIS

B<dh_epicsdep> [S<I<debhelper options>>]

=head1 DESCRIPTION

This utility provides the substituion variable epics:Depends.
It add a versioned dependency to epics-dev to all *-dev
packages which should match the libepics* dependency.

=cut

init();

my $ver = `dpkg-query --show --showformat='\${Version}' epics-dev`;
# The following requires perl >= 5.10
if( ${^CHILD_ERROR_NATIVE} != 0 ) {
	die "Package name epics-dev not installed";
}

# remove deb revision
$ver =~ s/-[^-]+$//;

verbose_print("epics $ver\n");

# if epics base version is a patch release
if( $ver =~ m/\d+\.\d+\.\d+\.\d+$/m ) {
	# remove patch number
	$ver =~ s/\.\d+$//;
}

verbose_print("Adding dependency to epics $ver\n");

foreach my $pkg(getpackages()) {
	verbose_print("Package: $pkg\n");
	
	# Skip packages not named '*-dev'
	if( $pkg !~ /-dev$/) {
		next;
	}

	# this range should encompass all patch releases of the series
	addsubstvar($pkg, "epics:Depends", "epics-dev", ">= ${ver}~");
	addsubstvar($pkg, "epics:Depends", "epics-dev", "<= ${ver}.+");
}


=head1 SEE ALSO

L<debhelper(7)>, L<epics-debhelper(7)>

This program is a not part of the official debhelper package.

=head1 AUTHOR

Michael Davidsaver <mdavidsaver@gmail.com>

=cut