#!/usr/bin/perl
#
# sourcedeps-makerev: build reverse index of source dependencies
#   (i.e., a list of all packages that appear as srcdeps)
# Copyright (C) 1999 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
# $Id$
#

# this should use perl or python apt, taking in the chroots to act on
# for each dist somehow, and then for each chroot, dump all
# build-deps, and then add them to the *.rev files.  buildd-mail can then
# read it in, and only try to move packages that are build-deps
exit 0;

while( <> ) {
	chomp;
	next if /^\s*$/ || /^\s*#/;
	while( /\\$/ ) {
		chop;
		$_ .= <F>;
		chomp;
	}
	if ($in_special) {
		$in_special = 0 if /^$/;
	}
	elsif (/^(\*\*?[\w\d.+-]+):\s*$/) {
		$in_special = 1;
	}
	elsif (/^abbrev\s+([\w\d.+-]+)\s*=\s*(.*)\s*$/) {
		my ($abbrev, $def) = ($1, $2);
		parse_one_srcdep( $abbrev, $def );
		$abbrevs{$abbrev} = 1;
	}
	elsif (!/^([\w\d.+-]+):\s*(.*)\s*$/) {
		warn "Syntax error in line $.\n";
	}
	else {
		my( $pkg, $deps ) = ($1, $2);
		parse_one_srcdep( $pkg, $deps );
	}
}

foreach (keys %abbrevs) {
	delete $deppkgs{$_};
}
print join( "\n", sort keys %deppkgs ), "\n";
exit 0;

sub parse_one_srcdep {
	my $pkg = shift;
	my $deps = shift;
	
	$deps =~ s/^\s*(.*)\s*$/$1/;
	foreach (split( /\s*,\s*/, $deps )) {
		if (/^\&/) {
			s/^\&\s+//;
		}
		my @alts = split( /\s*\|\s*/, $_ );
		foreach (@alts) {
			if (!/^([^\s([]+)\s*(\(\s*([<=>]+)\s*(\S+)\s*\))?(\s*\[([^]]+)\])?/) {
				warn "Warning: syntax error in dependency '$_' of $pkg\n";
				next;
			}
			my( $dep, $rel, $relv, $archlist ) = ($1, $3, $4, $6);
			next if $dep =~ /^[*!]/;
			$deppkgs{$dep}++;
		}
	}
}