#!/usr/bin/env python

# Check for obsolete binary packages
# Copyright (C) 2000  James Troup <james@nocrew.org>
# $Id: rene,v 1.1 2001-02-12 03:29:52 troup Exp $

# 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

# "Welcome to where time stands still,
#  No one leaves and no one will."
#   - Sanitarium - Metallica / Master of the puppets

################################################################################

import commands, os, string, sys, tempfile;
import utils;
import apt_pkg;

################################################################################

Cnf = None;
projectB = None;

################################################################################

def main ():
    global Cnf, projectB;

    apt_pkg.init();
    
    Cnf = apt_pkg.newConfiguration();
    apt_pkg.ReadConfigFileISC(Cnf,utils.which_conf_file());

    Arguments = [('D',"debug","Catherine::Options::Debug", "IntVal"),
                 ('h',"help","Catherine::Options::Help"),
                 ('V',"version","Catherine::Options::Version"),
                 ('l',"limit", "Catherine::Options::Limit", "HasArg"),
                 ('n',"no-action","Catherine::Options::No-Action"),
                 ('v',"verbose","Catherine::Options::Verbose")];

    apt_pkg.ParseCommandLine(Cnf,Arguments,sys.argv);

    bin_pkgs = {};
    miss_src = {};
    src_pkgs = {};
    source_binaries = {};

    suite = "unstable";

    components = Cnf.SubTree("Suite::%s::Components" % (suite)).List();
    for component in components:
        filename = "%s/dists/%s/%s/source/Sources.gz" % (Cnf["Dir::RootDir"], suite, component);
        print "Processing %s..." % (filename);
        # apt_pkg.ParseTagFile needs a real file handle and can't handle a GzipFile instance...
        temp_filename = tempfile.mktemp();
        fd = os.open(temp_filename, os.O_RDWR|os.O_CREAT|os.O_EXCL, 0700);
        os.close(fd);
        (result, output) = commands.getstatusoutput("gunzip -c %s > %s" % (filename, temp_filename));
        if (result != 0):
            sys.stderr.write("Gunzip invocation failed!\n%s\n" % (output));
            sys.exit(result);
        sources = utils.open_file(temp_filename, 'r');
        Sources = apt_pkg.ParseTagFile(sources);
        while Sources.Step():
            source = Sources.Section.Find('Package');
            source_index = component + '/' + source;
            if src_pkgs.has_key(source):
                print " %s is a duplicated source package (%s and %s)" % (source, source_index, src_pkgs[source]);
            src_pkgs[source] = source_index;
            binaries = Sources.Section.Find('Binary');
            for binary in string.split(binaries, ','):
                binary = string.strip(binary);
                if bin_pkgs.has_key(binary):
                    print " %s is duplicated in %s and %s" % (binary, source, bin_pkgs[binary]);
                bin_pkgs[binary] = source;
            source_binaries[source] = binaries;
        sources.close();
        os.unlink(temp_filename);

    for component in components:
        architectures = Cnf.SubTree("Suite::%s::Architectures" % (suite)).List();
        for architecture in architectures:
            if [ "source", "all" ].count(architecture) != 0:
                continue;
            filename = "%s/dists/%s/%s/binary-%s/Packages" % (Cnf["Dir::RootDir"], suite, component, architecture);
            print "Processing %s..." % (filename);
            packages = utils.open_file(filename, 'r');
            Packages = apt_pkg.ParseTagFile(packages);
            while Packages.Step():
                package = Packages.Section.Find('Package');
                source = Packages.Section.Find('Source', "");
                if source == "":
                    source = package;
                if string.find(source, "(") != -1:
                    m = utils.re_extract_src_version.match(source)
                    source = m.group(1)
                if not bin_pkgs.has_key(package) and not miss_src.has_key(package):
                    miss_src[package] = 1;
                    print " %s has no source [%s: %s]" % (package, source, source_binaries.get(source, "(source does not exist)"));
            packages.close();

    return;

####################################################################################################

if __name__ == '__main__':
    main()