#!/usr/bin/perl
#*****************************************************************************
# 
#  Copyright (c) 2002 Guillaume Cottenceau (gc at mandrakesoft dot com)
# 
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License version 2, as
#  published by the Free Software Foundation.
# 
#  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.
# 
#*****************************************************************************
#
# $Id$

BEGIN {  #- we want to run this code before the Gtk->init of the use-my_gtk
    my $basename = sub { local $_ = shift; s|/*\s*$||; s|.*/||; $_ };
    "@ARGV" =~ /-h/ and do {
	printf STDERR "Usage: %s [OPTION]...
  --no-confirmation      don't ask first confirmation question in MandrakeUpdate mode
  --no-verify-rpm        don't verify packages signatures
  --changelog-first      display changelog before filelist in the description window
  --merge-all-rpmnew     propose to merge all .rpmnew/.rpmsave files found
", $basename->($0);
	exit 0;
    };
}

use strict;
use vars qw($MODE %options);

use lib qw(/usr/lib/libDrakX);
use common;
use rpmdrake;

require_root_capability();

$MODE = 'install';
$0 =~ m|/rpmdrake-remove$| and $MODE = 'remove';
$0 =~ m|/MandrakeUpdate$|  and $MODE = 'update';

/^-?-(\S+)$/ and $options{$1} = 1 foreach @ARGV;


$::isStandalone = 1;

my $w;
sub interactive_msg_  {  interactive_msg(@_, if_(exists $w->{rwindow}, transient => $w->{rwindow})) };
sub interactive_list_ { interactive_list(@_, if_(exists $w->{rwindow}, transient => $w->{rwindow})) };
sub wait_msg_         {         wait_msg(@_, if_(exists $w->{rwindow}, transient => $w->{rwindow})) };

sub ctreefy { $_[0] =~ s,/,|,g; $_[0] }

sub beautify_description {
    my ($t, $tmp);
    foreach (split "\n", $_[0]) {
	s/^\s*//;
        if (/^$/ || /^\s*(-|\*|\+|o)\s/) {
            $t || $tmp and $t .= "$tmp\n";
            $tmp = $_;
        } else {
            $tmp = ($tmp ? "$tmp " : ($t && "\n") . $tmp) . $_;
        }
    }
    "$t$tmp\n";
}

sub myformatList {
    my $r = formatList(40, @_);
    $r =~ s/(.{50}\S*)\s/$1\n/g;
    $r
}

sub split_fullname { $_[0] =~ /^(.*)-([^-]+-[^-]+)$/ }
sub my_fullname { my ($name, $version, $release) = $_[0]->fullname; "$name-$version-$release" }

sub parse_compssUsers_flat {
    my (%compssUsers, $category);
    my $compss = '/var/lib/urpmi/compssUsers.flat';
    -r $compss or $compss = '/usr/share/rpmdrake/compssUsers.flat.default';
    -r $compss or die "Internal error, please report";
    foreach (cat_($compss)) {
	s/#.*//;
	/^\s*$/ and next;
	if (/^\S.*/) {
	    if (/^(.+?) \[icon=.+?\] \[path=(.+?)\]/) {
		$category = translate($2).'|'.translate($1);
	    } else {
		print STDERR "Malformed category in compssUsers.flat: <$_>\n";
	    }
	} elsif (/^\t(\d) (\S+)\s*$/) {
	    $category or print STDERR "Entry without category <$_>\n";
	    push @{$compssUsers{$2}}, $category . ($1 <= 3 ? '|'.N("Other") : '');
	}
    }
    \%compssUsers;
}

sub pkg2medium {
    my ($p, $urpm) = @_;
    my $tmp;
    each_index { !$_->{ignore} && $p->id <= $_->{end} and $tmp ||= ${$urpm->{media}}[$::i] } @{$urpm->{media}};
    $tmp;
}

sub extract_header {
    my ($pkg, $urpm) = @_;
    my $chg_prepro = sub {
	#- preprocess changelog for faster TextView insert reaction
	[ map { [ "$_\n", if_(/^\*/, { 'weight' => Gtk2::Pango->WEIGHT_BOLD }) ] } split("\n", $_[0]) ]
    };
    if ($MODE eq 'remove') {
	@$max_info_in_descr or return;
	my $name = my_fullname($pkg->{pkg});
	add2hash($pkg, { files => scalar(`rpm -ql $name`) || N("(none)"), changelog => $chg_prepro->(scalar(`rpm -q --changelog $name`)) });
    } else {
	my ($headersdir, $p, $medium) = ('/root/tmp/headers/', $pkg->{pkg}, pkg2medium($pkg->{pkg}, $urpm));
	my $hdlist =  "$urpm->{statedir}/$medium->{hdlist}";
	if (-r $hdlist) {  #- packdrake segfaults when giving a missing file :(
	    standalone::explanations("Extracting header of " . $p->header_filename . " from $hdlist");
	    my $packer;
	    eval { $packer = new packdrake($hdlist, quiet => 1) } or log::l("Warning, hdlist seems corrupted :-("), goto header_non_available;
	    $packer->extract_archive($headersdir, $p->header_filename);
	    $p->update_header($headersdir . $p->header_filename) or log::l("Warning, could not extract header!"), goto header_non_available;
	    rm_rf($headersdir);
	    add2hash($pkg, { summary => $p->summary, description => beautify_description($p->description) });
	    my $localtime2changelog = sub { scalar(localtime($_[0])) =~ /(.*) \S+ (\d{4})$/; "$1 $2" };
	    @$max_info_in_descr and add2hash($pkg, {
	        files => join("\n", $p->files) || N("(none)"),
		changelog => $chg_prepro->(join("\n", mapn { "* ".$localtime2changelog->($_[2])." $_[0]\n\n$_[1]\n" }
						[ $p->changelog_name ], [ $p->changelog_text ], [ $p->changelog_time ])) });
	    $p->pack_header;
	} else {
	  header_non_available:
	    add2hash($pkg, { summary => N("(Not available)"), description => undef });
	}
    }
}

sub db { URPM::DB::open or die 'Couldn\'t open RPM DB' }

sub do_search($$$$$$$) {
    my ($find_entry, $tree, $tree_model, $options, $current_search_type, $urpm, $pkgs) = @_;
    my $entry = $find_entry->get_text or return;
    my ($results_ok, $results_none) = (N("Search results"), N("Search results (none)"));
    $options->{delete_category}->($_) foreach $results_ok, $results_none;
    $options->{state}{flat} and $options->{delete_all}->();
    $tree->collapse_all();
    my @search_results;
    if ($current_search_type ne 'normal') {
	if ($MODE eq 'remove') {
	    if ($current_search_type eq 'descriptions') {
		@search_results = map { if_(eval { ($pkgs->{$_}{summary}.$pkgs->{$_}{description}) =~ /$entry/i }, $_) } keys %$pkgs;
	    } else {
		slow_func(N("Please wait, searching..."),
			  sub { db->traverse(sub { push @search_results, map { if_(eval { /$entry/i }, my_fullname($_[0])) } $_[0]->files });
				@search_results = grep { exists $pkgs->{$_} } uniq(@search_results) });
	    }
	} else {
	    my @hdlists = map { my $h = "$urpm->{statedir}/$_->{hdlist}";
				if_(!$_->{ignore} && (!($MODE eq 'update') || $_->{update}) && -r $h, $h) } @{$urpm->{media}};
	    my $total_size = sum(map { my $pack; eval { $pack = new packdrake($_, quiet => 1) } ? $pack->{toc_f_count} : 0 } @hdlists);
	    my $searchstop;
	    my $searchw = ugtk2->new('rpmdrake', grab => 1, transient => $w->{rwindow});
	    gtkadd($searchw->{window}, gtkpack__(Gtk2::VBox->new(1, 5),
						 Gtk2::Label->new(N("Please wait, searching...")),
						 my $searchprogress = gtkset_size_request(Gtk2::ProgressBar->new, 400, -1),
						 gtkpack__(gtkset_layout(Gtk2::HButtonBox->new, 'spread'),
							   gtksignal_connect(Gtk2::Button->new(but(N("Stop"))),
									     clicked => sub { $searchstop = 1 }))));
	    $searchw->sync;
	    local *SF;
	    open SF, 'parsehdlist --fileswinfo --description --summary '.join(' ', map { "\'$_\'" } @hdlists).' |';
	    my ($pkg, $progresscount);
	    while (<SF>) {
		$searchstop and last;
		if (/^NAME<([^>]+)> VERSION<([^>]+)> RELEASE<([^>]+)>/) {
		    $pkg = "$1-$2-$3";
		    $progresscount++; $progresscount <= $total_size and $searchprogress->set_fraction($progresscount/$total_size);
		    $searchw->flush;
		    next;
		}
		$pkg or next;
		my (undef, $key, $value) = split ':', $_;
		if ($current_search_type eq 'descriptions') {
		    $key =~ /^summary|description$/ or next;
		} else {
		    $key eq 'files' or next;
		}
		if (eval { $value =~ /$entry/i }) {
		    exists $pkgs->{$pkg} and push @search_results, $pkg;
		    $pkg = '';
		}
	    }
	    close SF;
	    @search_results = uniq(@search_results); #- there can be multiple packages with same version/release for different arch's
	    $searchw->destroy;
	}
    } else {
	@search_results = grep { eval { /$entry/i } } keys %$pkgs;
    }
    if (@search_results) {
	$options->{add_nodes}->(map { [ $_, N("Search results").($options->{tree_mode} eq 'by_presence'
								 ? '|'.($pkgs->{$_}{pkg}->flag_installed ? N("Upgradable") : N("Addable"))
								 : ($options->{tree_mode} eq 'by_selection'
								    ? '|'.($pkgs->{$_}{selected} ? N("Selected") : N("Not selected"))
								    : ''))
				      ] } sort { uc($a) cmp uc($b) } @search_results);
	my $last_iter = $tree_model->iter_nth_child(undef, $tree_model->iter_n_children(undef) - 1);
	my $path = $tree_model->get_path($last_iter);
	$tree->expand_row($path, 0);
	$path->free; $last_iter->free;
    } else {
	$options->{add_nodes}->([ '', $results_none, { nochild => 1 } ]);
    }
}

sub find_installed_version {
    my ($p) = @_;
    my @version;
    db->traverse_tag('name', [ $p->name ], sub { push @version, $_[0]->version.'-'.$_[0]->release });
    @version ? join(',', sort @version) : N("(none)");
}

sub run_treeview_dialog {
    my ($pkgs_provider, $callback_action) = @_;

    my ($urpm, $pkgs, $descriptions) = $pkgs_provider->();

    my ($options, $size_selected, $compssUsers, $info, $info_update, $tree, $disable_treeselect_callback, %elems);
    $size_selected = 0;  #- to remove the use strict warning
    my (undef, $size_free) = MDK::Common::System::df('/usr');

    $::noBorder = 1;
    $w = ugtk2->new(N("rpmdrake")." 9.1");
    $::noBorder = 0;

    my $formatlistpkg = sub { myformatList(sort { uc($a) cmp uc($b) } @_) };
    my $is_locale_available = sub {
	grep { $urpm->{depslist}[$_]->flag_selected } keys %{$urpm->{provides}{$_[0]} || {}} and return 1;
	my $found;
	db->traverse_tag('name', [ $_ ], sub { $found ||= 1 });
	return $found;
    };
    my $callback_choices = sub {
	my (undef, $db, $state, $choices) = @_;
	foreach my $pkg (@$choices) {
	    foreach ($pkg->requires_nosense) {
		/locales-/ or next;
		$is_locale_available->($_) and return $pkg;
	    }
	}
	my $callback = sub { interactive_msg_(N("More information on package..."), $options->{get_info}->($_[0]), scroll => 1) };
	$choices->[interactive_list_(N("Please choose"), N("One of the following packages is needed:"),
				     [ map { my_fullname($_) } @$choices ], $callback)];
    };
    my $choices_auto;
    my $callback_choices_auto = sub {
	my (undef, $db, $state, $choices) = @_;
	member(my_fullname($_), @$choices_auto) and return $_ foreach @$choices;
	return $choices->[0];  #- theoretically unreachable, but at least try to fallback on something usable
    };
    my $closure_removal = sub {
	$urpm->{state}{ask_remove} = {};
	my $db = db();
	foreach (@_) {
	    $db->traverse_tag('name', [ (split_fullname($_))[0] ], sub {
				  my_fullname($_[0]) eq $_ or return;
				  $urpm->resolve_closure_ask_remove($db, $urpm->{state}, $_[0]);
			      }) or die N("unknown package ") . "$_\n";
	}
	keys %{$urpm->{state}{ask_remove}};
    };
    $options = {
		   node_state => sub { $_[0] ? ($pkgs->{$_[0]}{selected} ? 'selected' : 'unselected')
					     : 'XXX' },  #- checks $_[0] -> hack for partial tree displaying
		   build_tree => sub {
		       my ($add_node, $flat, $mode) = @_;
		       my @elems;
		       my $wait = wait_msg_(N("Please wait, listing packages..."));
		       $disable_treeselect_callback = 1;
		       if ($mode eq 'mandrake_choices') {
			   foreach my $pkg (keys %$pkgs) {
			       my ($name) = split_fullname($pkg);
			       push @elems, [ $pkg, $_ ] foreach @{$compssUsers->{$name}};
			   }
		       } else {
			   my @keys = keys %$pkgs;
			   if ($MODE eq 'update') {
			       @keys = grep { my ($name) = split_fullname($_);
					      member($descriptions->{$name}{importance}, @$mandrakeupdate_wanted_categories) } @keys;
			       if (@keys == 0) {
				   $add_node->('', N("(none)"), { nochild => 1 });
				   my $explanation_only_once if 0;
				   $explanation_only_once or interactive_msg_(N("No update"),
N("The list of updates is void. This means that either there is
no available update for the packages installed on your computer,
or you already installed all of them."));
				   $explanation_only_once = 1;
			       }
			   }
			   @elems = map { [ $_, !$flat && ctreefy($pkgs->{$_}{pkg}->group) ] } @keys;
		       }
		       my %sortmethods = (by_size => sub { sort { $pkgs->{$b->[0]}{pkg}->size <=> $pkgs->{$a->[0]}{pkg}->size } @_ },
					  by_selection => sub { sort { $pkgs->{$b->[0]}{selected} <=> $pkgs->{$a->[0]}{selected}
								       || uc($a->[0]) cmp uc($b->[0]) } @_ },
					  flat => sub { sort { uc($a->[0]) cmp uc($b->[0]) } @_ });
		       if ($flat) {
			   $add_node->($_->[0], '') foreach $sortmethods{$mode || 'flat'}->(@elems);
		       } else {
			   if ($mode eq 'by_source') {
			       $add_node->($_->[0], pkg2medium($pkgs->{$_->[0]}{pkg}, $urpm)->{name}) foreach $sortmethods{flat}->(@elems);
			   } elsif ($mode eq 'by_presence') {
			       $add_node->($_->[0], $pkgs->{$_->[0]}{pkg}->flag_installed ? N("Upgradable") : N("Addable"))
				 foreach $sortmethods{flat}->(@elems);
			   } else {
			       #- special case, we don't populate all the tree at first (to speed things up)
			       %elems = ();
			       foreach my $root (sort { $a cmp $b } uniq(map { ($_->[1] =~ /([^\|]+)\|?.*/)[0] } @elems)) {
				   $add_node->('', $root);
				   @{$elems{$root}} = sort { $a->[1] cmp $b->[1] || uc($a->[0]) cmp uc($b->[0]) }
				                      grep { $_->[1] =~ /^\Q$root|\E?/ } @elems;
			       }
			   }
		       }
		       $disable_treeselect_callback = 0;
		       remove_wait_msg($wait);
		   },
		   grep_unselected => sub { grep { exists $pkgs->{$_} && !$pkgs->{$_}{selected} } @_ },
		   partialsel_unsel => sub {
		       my ($unsel, $sel) = @_;
		       @$sel = grep { exists $pkgs->{$_} } @$sel;
		       @$unsel < @$sel;
		   },
		   toggle_nodes => sub {
		       my ($set_state, @nodes) = @_;
		       @nodes = grep { exists $pkgs->{$_} } @nodes;
		       int(@nodes) or return;
		       my $new_state = !$pkgs->{$nodes[0]}{selected};

		       my @nodes_with_deps;
		       my $deps_msg = sub {
			   my ($title, $msg, $nodes, $nodes_with_deps) = @_;
			   my @deps = sort { $a cmp $b } difference2($nodes_with_deps, $nodes);
			   @deps > 0 or return 1;
			 deps_msg_again:
			   my $results = interactive_msg_($title, $msg . $formatlistpkg->(@deps),
							  yesno => [ N("Ok"), N("More infos"), N("Cancel") ]);
			   if ($results eq 
			                   #-PO: Keep it short, this is gonna be on a button
			                   N("More infos")) {
			       interactive_packtable(N("Information on packages"),
						     $w->{rwindow},
						     undef,
						     [ map { my $pkg = $_;
							     [ gtkpack__(Gtk2::HBox->new(0, 0), gtkset_selectable(Gtk2::Label->new($pkg), 1)),
							       gtksignal_connect(Gtk2::Button->new(N("More information on package...")),
										 clicked => sub {
										     interactive_msg(N("More information on package..."),
											      $options->{get_info}->($pkg), scroll => 1)
										 }) ] } @deps ],
						     [ gtksignal_connect(Gtk2::Button->new(N("Ok")),
									 clicked => sub { Gtk2->main_quit }) ]);
			       goto deps_msg_again;
			   } else {
			       return $results eq N("Ok");
			   }
		       };
		       if ($MODE eq 'remove') {
			   if ($new_state) {
			       slow_func($tree->window, sub { $closure_removal->(@nodes) });
			       @nodes_with_deps = grep { !$pkgs->{$_}{selected} && !/^basesystem/ } keys %{$urpm->{state}{ask_remove}};
			       $deps_msg->(N("Some additional packages need to be removed"),
					   N("Because of their dependencies, the following package(s) also need to be\nremoved:\n\n"),
					   \@nodes, \@nodes_with_deps) or @nodes_with_deps = ();
			       my @impossible_to_remove;
			       foreach (grep { exists $pkgs->{$_}{base} } keys %{$urpm->{state}{ask_remove}}) {
				   ${$pkgs->{$_}{base}} == 1 ? push @impossible_to_remove, $_ : ${$pkgs->{$_}{base}}--;
			       }
			       @impossible_to_remove and interactive_msg_(N("Some packages can't be removed"),
									  N("Removing these packages would break your system, sorry:\n\n") .
									  $formatlistpkg->(sort { $a cmp $b } @impossible_to_remove));
			       @nodes_with_deps = difference2(\@nodes_with_deps, \@impossible_to_remove);
			   } else {
			       slow_func($tree->window,
					 sub { @nodes_with_deps = grep { intersection(\@nodes, [ $closure_removal->($_) ]) }
						                  grep { $pkgs->{$_}{selected} } keys %$pkgs });
			       $deps_msg->(N("Some packages can't be removed"),
					   N("Because of their dependencies, the following package(s) must be\nunselected now:\n\n"),
					   \@nodes, \@nodes_with_deps) or @nodes_with_deps = ();
			       $pkgs->{$_}{base} && ${$pkgs->{$_}{base}}++ foreach @nodes_with_deps;
			   }
		       } else {
			   if ($new_state) {
			       $urpm->{state}{selected} = {};
			       if (@nodes > 1) {
				   #- unselect i18n packages of which locales is not already present (happens when user clicks on KDE group)
				   my @bad_i18n_pkgs;
				   foreach my $sel (@nodes) {
				       foreach ($pkgs->{$sel}{pkg}->requires_nosense) {
					   /locales-([^-]+)/ or next;
					   $sel =~ /-$1[-_]/ && !$is_locale_available->($_) and push @bad_i18n_pkgs, $sel;
				       }
				   }
				   @nodes = difference2(\@nodes, \@bad_i18n_pkgs);
			       }
			       slow_func($tree->window,
					 sub { $urpm->resolve_requested(db(), $urpm->{state}, { map { $pkgs->{$_}{pkg}->id => 1 } @nodes },
							   callback_choices => $callback_choices, no_flag_update => 1, keep_state => 1) });
			       my $pkg_sel_after_selection = sub {
				   $urpm->deselect_unwanted_packages($urpm->{state}{selected});
				   if (%{$urpm->{state}{ask_unselect} || {}}) {
				       delete @{$urpm->{state}{selected}}{keys %{delete $urpm->{state}{ask_unselect}}};
				   }
				   @nodes_with_deps = map { my_fullname($urpm->{depslist}[$_]) } keys %{$urpm->{state}{selected}};
			       };
			       $pkg_sel_after_selection->();
			       if (!$deps_msg->(N("Additional packages needed"), 
						N("To satisfy dependencies, the following package(s) also need\nto be installed:\n\n"),
						\@nodes, \@nodes_with_deps)) {
				   @nodes_with_deps = ();
				   goto packages_selection_ok;
			       }

			       $choices_auto = \@nodes_with_deps;
			       $urpm->{state}{selected} = {};
			       slow_func($tree->window,
					 sub { $urpm->resolve_requested(db(), $urpm->{state}, { map { $pkgs->{$_}{pkg}->id => 1 } @nodes },
									callback_choices => $callback_choices_auto) });
			       $pkg_sel_after_selection->();
			       if (my @cant = difference2(\@nodes, \@nodes_with_deps)) {
				   interactive_msg_(N("Some packages can't be installed"),
						    N("Sorry, the following package(s) can't be selected:\n\n") . $formatlistpkg->(@cant));
				   foreach (@cant) {
				       $pkgs->{$_}{pkg}->set_flag_requested(0);
				       $pkgs->{$_}{pkg}->set_flag_required(0);
				   }
			       }
			     packages_selection_ok:
			   } else {
			       $urpm->{state}{unselected} = {};
			       slow_func($tree->window,
					 sub { $urpm->resolve_unrequested(db(), $urpm->{state},
									  { map { $pkgs->{$_}{pkg}->id => undef } @nodes },
									  no_flag_update => 1) });
			       @nodes_with_deps = map { my_fullname($urpm->{depslist}[$_]) } keys %{$urpm->{state}{unselected}};
			       if (!$deps_msg->(N("Some packages need to be removed"),
						N("Because of their dependencies, the following package(s) must be\nunselected now:\n\n"),
						\@nodes, \@nodes_with_deps)) {
				   @nodes_with_deps = ();
				   goto packages_unselection_ok;
			       }
			       slow_func($tree->window,
					 sub { $urpm->resolve_unrequested(db(), $urpm->{state},
									  { map { $pkgs->{$_}{pkg}->id => undef } @nodes }) });
			       @nodes_with_deps = map { my_fullname($urpm->{depslist}[$_]) } keys %{$urpm->{state}{unselected}};
			     packages_unselection_ok:
			   }
		       }

		       foreach (@nodes_with_deps) {
			   exists $pkgs->{$_} or next;  #- some deps may exist on some packages which aren't listed because
			                                #- not upgradable (older than what currently installed)
			   $set_state->($_, $new_state ? 'selected' : 'unselected');
			   $pkgs->{$_}{selected} = $new_state;
			   $size_selected += $pkgs->{$_}{pkg}->size * ($new_state ? 1 : -1);
		       }
		   },
		   get_status => sub { $MODE eq 'install' ? N("Selected: %d MB / Free disk space: %d MB",
							      $size_selected/(1024*1024), $size_free/1024)
					                  : N("Selected size: %d MB", $size_selected/(1024*1024)) },
		   get_info => sub { my ($key) = @_;
				     exists $pkgs->{$key} or return;  #- related to the partial tree displaying hackery ($key can be '')
				     my ($name, $version) = split_fullname($key);
				     exists $pkgs->{$key}{description} && (!@$max_info_in_descr || exists $pkgs->{$key}{files})
				       or slow_func($tree->window, sub { extract_header($pkgs->{$key}, $urpm) });
				     my $tag_tag = { 'foreground' => 'royalblue3', 'weight' => Gtk2::Pango->WEIGHT_BOLD };
				     my $tag_fix = { 'font' => 'monospace' };
				     my @files = ([ N("Files:\n"), $tag_tag ], [ $pkgs->{$key}{files} || N("(Not available)"), $tag_fix ]);
				     my @chglo = ([ N("Changelog:\n"), $tag_tag ], @{$pkgs->{$key}{changelog} || [[ N("(Not available)") ]]});
				     my @max_info = if_(@$max_info_in_descr,
					      $MODE eq 'remove' ? ()
						 : ([ N("Source: "), $tag_tag ], [ pkg2medium($pkgs->{$key}{pkg}, $urpm)->{name} ], [ "\n" ],
						    [ N("Currently installed version: "), $tag_tag ],
						          [ find_installed_version($pkgs->{$key}{pkg}) ], [ "\n" ]),
					      $options{'changelog-first'} ? (@chglo, [ "\n" ], @files) : (@files, [ "\n\n" ], @chglo));
				     $MODE eq 'update' and gtktext_insert($info_update,
							      [ [ N("Reason for update: "), $tag_tag ],
								[ beautify_description($descriptions->{$name}{pre}) ] ]);
				     [ [ N("Name: "),    $tag_tag ], [ "$name\n" ],
				       [ N("Version: "), $tag_tag ], [ "$version\n" ],
				       [ N("Size: "),    $tag_tag ], [ N("%s KB", int($pkgs->{$key}{pkg}->size/1024))."\n" ],
				       if_($MODE eq 'update',
					   [ N("Importance: "), $tag_tag ], [ "$descriptions->{$name}{importance}\n" ]),
				       [ "\n".N("Summary: "),   $tag_tag ], [ "$pkgs->{$key}{summary}\n\n" ],
				       [ N("Description: "),    $tag_tag ], [ "$pkgs->{$key}{description}\n" ],
				       @max_info ];
				 },
		   check_interactive_to_toggle => sub { 1 },
		   grep_allowed_to_toggle => sub { @_ },
		   rebuild_tree => sub {},
		  };

    my $tree_model = Gtk2::TreeStore->new(Gtk2::GType->STRING, Gtk2::GType->OBJECT, Gtk2::GType->STRING);
    $tree = Gtk2::TreeView->new_with_model($tree_model);
    $tree->get_selection->set_mode('browse');
    $tree->append_column(my $textcolumn = Gtk2::TreeViewColumn->new_with_attributes(undef, Gtk2::CellRendererText->new, 'text' => 0));
    $tree->append_column(my $pixcolumn  = Gtk2::TreeViewColumn->new_with_attributes(undef, Gtk2::CellRendererPixbuf->new, 'pixbuf' => 1));
    $tree->append_column(Gtk2::TreeViewColumn->new_with_attributes(undef, Gtk2::CellRendererText->new, 'text' => 2));
    $tree->set_headers_visible(0);
    $tree->set_rules_hint(1);

    ($typical_width) = string_size($tree, translate("Graphical Environment")."xmms-more-vis-plugins");
    $typical_width > 500 and $typical_width = 500;  #- try to not being crazy with a too large value
    $typical_width < 150 and $typical_width = 150;
    $textcolumn->set_min_width($typical_width*0.7);
    $textcolumn->set_max_width($typical_width);

    my $cursor_to_restore;
    $tree->signal_connect(expose_event => sub {
			      $cursor_to_restore or return;
			      gtkset_mousecursor_normal($tree->window);
			      undef $cursor_to_restore;
			  });
    $tree->signal_connect(row_expanded => sub { 
			      my ($tree, $iter, $path) = @_;
			      #- hackish: if first child has '' as name, then we need to expand on the fly
			      my $child = $tree_model->iter_children($iter);
			      if ($tree_model->get($child, 0) eq '') {
				  $tree_model->remove($child);
				  slow_func($tree->window, sub { $options->{add_nodes}->(@{$elems{$tree_model->get($iter, 0)}}) });
			      } else {
				  if ($tree_model->iter_n_children($iter) > 500) { #- populating large groups is slow
				      $cursor_to_restore = 1;
				      gtkset_mousecursor_wait($tree->window);
				  }
			      }
			      $child->free;
			      $tree->expand_row($path, 0);
			  });

    my @modes_buttons;
    if ($MODE eq 'update') {
	$options->{state}{flat} = 1;
	my %toggle_infos = (security => N("Security updates"), bugfix => N("Bugfixes updates"), normal => N("Normal updates"));
	my @toggle_names_ordered = qw(security bugfix normal);
	@modes_buttons = map { Gtk2::CheckButton->new(but($toggle_infos{$_})) } @toggle_names_ordered;
	mapn {
	    member($_[0], @$mandrakeupdate_wanted_categories) and $_[1]->set_active(1);
	    my $capture_value = $_[0];
	    $_[1]->signal_connect(clicked => sub {
				      $disable_treeselect_callback = 1;
				      if ($_[0]->get_active) {
					  push @$mandrakeupdate_wanted_categories, $capture_value;
				      } else {
					  @$mandrakeupdate_wanted_categories = difference2($mandrakeupdate_wanted_categories,
											   [ $capture_value ]);
				      }
				      $options->{rebuild_tree}->();
				      $disable_treeselect_callback = 0;
				  });
	} \@toggle_names_ordered, \@modes_buttons;
    } else {
	my %radios_infos = (mandrake_choices => { name => N("Mandrake choices"),           flat => 0 },
			    flat             => { name => N("All packages, alphabetical"), flat => 1 },
	                    by               => { name => N("All packages,"),              flat => 0 });
	$compssUsers = parse_compssUsers_flat();
	my @radios_names_ordered = qw(mandrake_choices flat by);
	$compssUsers or shift @radios_names_ordered;
	@modes_buttons = gtkradio($radios_infos{mandrake_choices}{name}, map { $radios_infos{$_}{name} } @radios_names_ordered);

	mapn {
	    my $capture_mode = $_[0];
	    $_[1]->signal_connect(clicked => sub {
				      if ($_[0]->get_active) {
					  $disable_treeselect_callback = 1;
					  ($options->{tree_mode}, $options->{state}{flat}) = $capture_mode eq 'by'
					        ? ($options->{tree_submode}, $options->{tree_subflat})
					        : ($capture_mode,            $radios_infos{$capture_mode}{flat});
					  $options->{rebuild_tree}->();
					  $disable_treeselect_callback = 0;
				      }
				  });
	} \@radios_names_ordered, \@modes_buttons;
	$options->{tree_mode} = $radios_names_ordered[0];

	my $advanced_menu = Gtk2::Menu->new;
	my $radio_by;
	my @advanced_modes = ([ 'by_group', N("by group"), 0 ], [ 'by_size', N("by size"), 1 ],
			      [ 'by_selection', N("by selection state"), 1 ]);
	$MODE eq 'install' and push @advanced_modes, ([ 'by_source', N("by source repository"), 0 ], [ 'by_presence', N("by update availability"), 0 ]);
	foreach (@advanced_modes) {
	    my ($capt_mode, $capt_flat) = ($_->[0], $_->[2]);
	    $advanced_menu->append(gtksignal_connect(gtkshow(Gtk2::MenuItem->new_with_label($_->[1])),
						     activate => sub {
							 $options->{tree_submode} = $capt_mode;
							 $options->{tree_subflat} = $capt_flat;
							 $radio_by->activate;
						     }));
	}
	$options->{tree_submode} = $advanced_modes[0][0];
	each_index {
	    if ($_ eq 'by') {
		$radio_by = $modes_buttons[$::i];
		$modes_buttons[$::i] = gtkpack(Gtk2::HBox->new(0, 0), $modes_buttons[$::i], my $t = Gtk2::OptionMenu->new);
		$t->set_menu($advanced_menu);
	    }
	} @radios_names_ordered;
    }

    my $search_types_menu = Gtk2::Menu->new;
    my @search_types = ([ 'normal', N("in names") ], [ 'descriptions', N("in descriptions") ], [ 'files', N("in files") ]);
    my $current_search_type = $search_types[0][0];
    foreach (@search_types) {
	my $capt_type = $_->[0];
	$search_types_menu->append(gtksignal_connect(gtkshow(Gtk2::MenuItem->new_with_label($_->[1])),
						     activate => sub { $current_search_type = $capt_type }));
    }
    my $search_types_optionmenu = Gtk2::OptionMenu->new;
    $search_types_optionmenu->set_menu($search_types_menu);

    my $menu_treeview = Gtk2::Menu->new;
    my @menu_treeview_actions = ([ 'reset_selection', N("Reset the selection") ], [ 'reload_pkg', N("Reload the packages list") ]);
    $MODE ne 'remove' and push @menu_treeview_actions, [ 'update_sources', N("Update source(s)") ];
    foreach (@menu_treeview_actions) {
	my ($action, $text) = @$_;
	my %action2fun; %action2fun = (
		          reset_selection => sub {
			      if ($MODE ne 'remove') {
				  $urpm->{state}{unselected} = {};
				  $urpm->resolve_unrequested(db(), $urpm->{state},
						   { map { if_($pkgs->{$_}{selected}, $pkgs->{$_}{pkg}->id => undef) } keys %$pkgs });
			      }
			      $pkgs->{$_}{selected} = 0 foreach keys %$pkgs;
			      $size_selected = 0;
			      $options->{rebuild_tree}->();
			  },
		          reload_pkg => sub {
			      ($urpm, $pkgs, $descriptions) = $pkgs_provider->({ skip_updating_mu => 1 });
			      $size_selected = 0;
			      $options->{rebuild_tree}->();
			  },
			  update_sources => sub { update_sources_interactive($urpm, transient => $w->{rwindow})
						    and $action2fun{reload_pkg}->() });
	$menu_treeview->append(gtksignal_connect(gtkshow(Gtk2::MenuItem->new_with_label($text)), activate => sub { $action2fun{$action}->() }));
    }
    $tree->signal_connect(button_press_event => sub { $_[1]->button eq 3 or return 0;
						      $menu_treeview->popup(undef, undef, undef, undef, $_[1]->button, $_[1]->time) });

    my @menu_descr_modes = ([ N("Normal information"), [] ], [ N("Maximum information"), [1] ]);
    my @descr_modes = gtkradio($menu_descr_modes[@$max_info_in_descr ? 1 : 0][0], map { $_->[0] } @menu_descr_modes);
    mapn {
	my $val = $_[1][1];
	$_[0]->signal_connect(clicked => sub {
				  if ($_[0]->get_active) {
				      $max_info_in_descr = $val;
				      $options->{display_info}->();
				  }
			      });
    } \@descr_modes, \@menu_descr_modes;
    $info = Gtk2::TextView->new;
    $info->set_left_margin(2);
    $info->set_right_margin(15);  #- workaround when right elevator of scrolled window appears

    my $find_entry;
    my $find_callback = sub { do_search($find_entry, $tree, $tree_model, $options, $current_search_type, $urpm, $pkgs) };

    my $do_action = sub {
	int(grep { $pkgs->{$_}{selected} } keys %$pkgs) or return;
	my $size_added = sum(map { if_($_->flag_selected && !$_->flag_installed, $_->size) } @{$urpm->{depslist}});
	if ($MODE eq 'install' && $size_free - $size_added/1024 < 50*1024) {
	    interactive_msg_(N("Too many packages are selected"),
N("Warning: it seems that you are attempting to add so much
packages that your filesystem may run out of free diskspace,
during or after package installation ; this is particularly
dangerous and should be considered with care.

Do you really want to install all the selected packages?"), yesno => 1)
	      or return;
	}
	if ($MODE ne 'remove' && %{$urpm->{state}{ask_remove} || {}}) {
	    interactive_msg_(N("Some packages need to be removed"),
N("The following packages have to be removed for others to be upgraded:

%s

Is it ok to continue?", $formatlistpkg->(sort { $a cmp $b } keys %{$urpm->{state}{ask_remove}})), yesno => 1)
	      or return;
	}
	if (!$callback_action->($urpm, $pkgs)) {
	    ($urpm, $pkgs, $descriptions) = $pkgs_provider->({ skip_updating_mu => 1 });
	    $size_selected = 0;
	    (undef, $size_free) = MDK::Common::System::df('/usr');
	    $options->{rebuild_tree}->();
	}
    };

    my $table = Gtk2::Table->new(0, 0, 0);
    $table->attach(gtkpack__(Gtk2::HBox->new(0, 0), gtkpack(Gtk2::VBox->new(0, 0), @modes_buttons)),
		   0, 1, 0, 1, 'fill', 'fill', 0, 0);
    $table->attach(gtkpack__(Gtk2::HBox->new(0, 0), gtkpack(Gtk2::VBox->new(0, 0), Gtk2::Label->new, @descr_modes)),
		   1, 2, 0, 1, 'fill', 'fill', 0, 0);
    $table->attach(gtkadd(gtkset_shadow_type(Gtk2::Frame->new, 'in'),
			  gtkset_size_request(create_scrolled_window($tree), $typical_width*1.25, -1)),
		   0, 1, 1, 2, 'fill', 'fill', 0, 0);
    $table->attach($MODE eq 'update' ? create_vpaned(create_scrolled_window($info),
						     create_scrolled_window($info_update = Gtk2::TextView->new),
						     resize1 => 1)
		                     : create_scrolled_window($info),
		   1, 2, 1, 2, ['expand', 'fill'], ['expand', 'fill'], 0, 0);
    gtkadd($w->{window}, 
	   gtkpack_(Gtk2::VBox->new(0, 3),
		    0, gtkset_size_request(my $darea = Gtk2::DrawingArea->new, -1, 76),
		    1, gtkadd(gtkset_shadow_type(gtkset_border_width(Gtk2::Frame->new, 3), 'none'),
			      gtkpack_(Gtk2::VBox->new(0, 3),
				       0, gtkpack__(Gtk2::HBox->new(0, 10),
						    Gtk2::Label->new(N("Find:")),
						    $search_types_optionmenu,
						    gtksignal_connect($find_entry = Gtk2::Entry->new,
							      key_press_event => sub { $_[1]->keyval == Gtk2::Gdk::Event::Key->Sym_Return
											 and $find_callback->() }),
						    gtksignal_connect(Gtk2::Button->new(but(N("Search"))), clicked => $find_callback)),
				       1, $table,
				       0, gtkpack_(Gtk2::HBox->new(0, 20),
						   0, gtksignal_connect(Gtk2::Button->new(but(N("Help"))),
									clicked => sub { fork() or exec('drakhelp Drakxtools-Guide.html/software-management.html') }),
						   1, my $status = Gtk2::Label->new,
						   0, gtkpack(Gtk2::HBox->new(1, 20),
							      gtksignal_connect(Gtk2::Button->new(but_($MODE eq 'remove' ? N("Remove")
												                         : N("Install"))),
										clicked => sub { $do_action->() }),
							      gtksignal_connect(Gtk2::Button->new(but_(N("Quit"))),
										clicked => sub { Gtk2->main_quit })))
				       ))));
    my $pixbuf_icon = gtkcreate_pixbuf("title-$MODE");
    $darea->modify_font(Gtk2::Pango::FontDescription->from_string('Sans Italic 24'));
    my %t = (remove => N("Software Packages Removal"), update => N("Mandrake Update"), install => N("Software Packages Installation"));
    my $layout = $darea->create_pango_layout($t{$MODE});
    $darea->signal_connect(realize => sub { set_back_pixbuf($darea, gtkcreate_pixbuf('title-tile')) });
    $darea->signal_connect(expose_event => sub {
		       my (undef, undef, $dx, $dy) = $darea->allocation->values;
		       $darea->window->draw_pixbuf($darea->style->white_gc, $pixbuf_icon,
						   0, 0, $dx - $pixbuf_icon->get_width, 0, -1, -1, 'none', 0, 0);
		       my ($lx, $ly) = $layout->get_pixel_size;
		       $darea->window->draw_layout($darea->style->white_gc, ($dx-$lx)/2, ($dy-$ly)/2, $layout);
		       0;
		   });

    $w->{window}->set_default_size($typical_width*2.7, 500);
    $w->{rwindow}->show_all;
    my $widgets = { w => $w, tree => $tree, tree_model => $tree_model, textcolumn => $textcolumn, pixcolumn => $pixcolumn,
		    info => $info, status => $status };

    ask_browse_tree_info_given_widgets($options, $widgets);
}


# -=-=-=---=-=-=---=-=-=-- install packages -=-=-=---=-=-=---=-=-=-

sub get_installable_pkgs {
    my ($updates, $opts) = @_;
    my $update_name = 'update_source';
    my %update_descr;
    my @update_medias;

    if ($updates) {
	my $urpm = new urpm;
	$urpm->configure();
	my $statedir = $urpm->{statedir};
	@update_medias = grep { !$_->{ignore} && $_->{update} } @{$urpm->{media}};
	undef $urpm;
	if (@update_medias > 0) {
	    if (!$opts->{skip_updating_mu}) {
		$options{'no-confirmation'} or interactive_msg_('rpmdrake',
N("I need to contact the mirror to get latest update packages.
Please check that your network is currently running.

Is it ok to continue?"), yesno => 1) or myexit(-1);
		slow_func(N("Please wait, contacting mirror to update packages information."),
			  sub { system('/usr/sbin/urpmi.update', map { $_->{name} } @update_medias) == 0
				  or fatal_msg(N("Error updating medium"),
					       N("There was an unrecoverable error while updating packages information.")) });
	    }
	} else {
	  mu_retry_another_mirror:
	    my $m = choose_mirror();
	    $m or interactive_msg_(N("How to choose manually your mirror"),
N("You may also choose your desired mirror manually: to do so,
launch the Software Sources Manager, and then add a `Security
updates' source.

Then, restart MandrakeUpdate.", $update_name)), myexit(-1);
	    my ($r) = cat_('/etc/mandrake-release') =~ /release\s(\S+)/;
	    my $retval;
	    slow_func(N("Please wait, contacting mirror to initialize updates packages."),
		      sub { $retval = system("/usr/sbin/urpmi.addmedia --update $update_name $m/$r/RPMS/ with ../base/hdlist.cz") });
	    if ($retval != 0) {
		interactive_msg_(N("Error adding update medium"),
N("There was an error while adding the update medium via urpmi.

This may be due to a broken or temporary unavailable mirror, or when your
Mandrake Linux version (%s) is not yet / no more supported by Mandrake Linux
Official Updates.

Do you want to try another mirror?", $r), yesno => 1) and goto mu_retry_another_mirror;
		myexit(-1);
	    }
	    @update_medias = { name => $update_name };  #- hack to simulate a medium for parsing of descriptions
	}

	my ($cur, $section);
	foreach (map { cat_("$statedir/descriptions.$_->{name}"), '%package dummy' } @update_medias) {
	    /^%package (.+)/ and do {
		exists $cur->{importance} && !member($cur->{importance}, qw(security bugfix)) and $cur->{importance} = 'normal';
		$update_descr{$_} = $cur foreach @{$cur->{pkgs}};
		$cur = {};
		$cur->{pkgs} = [ split /\s/, $1 ];
		$section = 'pkg';
		next;
	    };
	    /^Update: (.+)/ && $section eq 'pkg' and $cur->{update} = $1;
	    /^Importance: (.+)/ && $section eq 'pkg' and $cur->{importance} = $1;
	    /^%pre/ and do { $section = 'pre'; next };
	    /^%description/ and do { $section = 'description'; next };
	    $section eq 'pre' and $cur->{pre} .= $_;
	    $section eq 'description' and $cur->{description} .= $_;
	}
    }
    my $wait = wait_msg_(N("Please wait, finding available packages..."));
    my $urpm = new urpm;
    my %installable_pkgs;

    $urpm->configure;
    @update_medias = grep { !$_->{ignore} && $_->{update} } @{$urpm->{media}};

    $urpm->compute_installed_flags(db());

    foreach my $pkg (@{$urpm->{depslist}}) {
	$pkg->flag_upgrade or next;
	$updates and ($pkg->flag_installed && grep { $pkg->id >= $_->{start} && $pkg->id <= $_->{end} } @update_medias or next);
	$installable_pkgs{my_fullname($pkg)} = { selected => 0, pkg => $pkg };
    }

    remove_wait_msg($wait);
    ($urpm, \%installable_pkgs, \%update_descr);
}

sub dialog_rpmnew {
    my ($msg, %p2r) = @_;
    # /var/lib/nfs/etab /var/lib/nfs/rmtab /var/lib/nfs/xtab /var/cache/man/whatis
    my @ignores_rpmnew = qw(/etc/group /etc/passwd /etc/localtime /etc/shells /etc/adjtime /etc/ld.so.conf /etc/modules 
                        /etc/security/fileshare.conf /etc/sudoers /etc/sysconfig/alsa /etc/sysconfig/autofsck /etc/sysconfig/harddisks
                        /etc/sysconfig/installkernel /etc/sysconfig/msec /etc/sysconfig/nfs /etc/sysconfig/pcmcia /etc/sysconfig/init
                        /etc/sysconfig/rawdevices /etc/sysconfig/saslauthd /etc/sysconfig/syslog /etc/sysconfig/usb /etc/sysconfig/xinetd);
    @{$p2r{$_}} = grep { !member($_, @ignores_rpmnew) } @{$p2r{$_}} foreach keys %p2r;
    my $sum_rpmnew = sum(map { int @{$p2r{$_}} } keys %p2r);
    $sum_rpmnew == 0 and return 1;
    my @inspect_wsize = ($typical_width*2.5, 500);
    my $inspect = sub {
	my ($file) = @_;
	my $d = ugtk2->new(N("Inspecting %s", $file), grab => 1, transient => $w->{rwindow});
	my $save_wsize = sub { @inspect_wsize = $d->{rwindow}->get_size };
	my ($rpmnew, $rpmsave) = ("$file.rpmnew", "$file.rpmsave");
	my $rpmfile = 'rpmnew';
	-r $rpmnew or $rpmfile = 'rpmsave';
	-r $rpmnew && -r $rpmsave && (stat $rpmsave)[9] > (stat $rpmnew)[9] and $rpmfile = 'rpmsave';
	$rpmfile eq 'rpmsave' and $rpmnew = $rpmsave;
	my %texts;
	gtkadd($d->{window},
	       gtkpack_(Gtk2::VBox->new(0, 5),
			1, create_vpaned(
				  create_vpaned(gtkpack_(Gtk2::VBox->new(0, 0),
							 0, gtkset_markup(Gtk2::Label->new, "<span font_desc=\"monospace\">$file:</span>"),
							 1, create_scrolled_window($texts{file} = Gtk2::TextView->new)),
						gtkpack_(Gtk2::VBox->new(0, 0),
							 0, gtkset_markup(Gtk2::Label->new, "<span font_desc=\"monospace\">$rpmnew:</span>"),
							 1, create_scrolled_window($texts{rpmnew} = Gtk2::TextView->new)),
						resize1 => 1),
				  gtkpack_(Gtk2::VBox->new(0, 0),
					   0, Gtk2::Label->new(N("changes:")),
					   1, create_scrolled_window($texts{diff} = Gtk2::TextView->new)),
				  resize1 => 1),
			0, gtkpack__(create_hbox(),
				     gtksignal_connect(Gtk2::Button->new(N("Remove .%s", $rpmfile)),
						       clicked => sub { $save_wsize->(); unlink $rpmnew; Gtk2->main_quit }),
				     gtksignal_connect(Gtk2::Button->new(N("Use .%s as main file", $rpmfile)),
						       clicked => sub { $save_wsize->(); renamef($rpmnew, $file); Gtk2->main_quit }),
				     gtksignal_connect(Gtk2::Button->new(N("Do nothing")),
						       clicked => sub { $save_wsize->(); Gtk2->main_quit }),
				    )));
	my %contents = (file => scalar(cat_($file)), rpmnew => scalar(cat_($rpmnew)));
	gtktext_insert($texts{$_}, [ [ $contents{$_}, { 'font' => 'monospace' } ] ]) foreach keys %contents;
	my @regexps = ([ '^(--- )|(\+\+\+ )', 'blue' ], [ '^@@ ', 'darkcyan' ], [ '^-', 'red3' ], [ '^\+', 'green3' ]);
	my $line2col = sub { $_[0] =~ /$_->[0]/ and return $_->[1] foreach @regexps; 'black' };
	gtktext_insert($texts{diff}, [ map { [ $_, { 'font' => 'monospace', 'foreground' => $line2col->($_) } ] } `diff -u $file $rpmnew` ]);
	$d->{rwindow}->set_default_size(@inspect_wsize);
	$d->main;
    };

    interactive_packtable(N("Installation finished"),
			  $w->{rwindow},
			  $msg,
			  [ map { my $pkg = $_;
				  map {
				      my $f = $_;
				      my $b;
				      [ gtkpack__(Gtk2::HBox->new(0, 0),
						  gtkset_markup(gtkset_selectable(Gtk2::Label->new, 1),
								"$pkg:<span font_desc=\"monospace\">$f</span>")),
					gtksignal_connect($b = Gtk2::Button->new(N("Inspect...")), clicked => sub {
							      $inspect->($f);
							      -r "$f.rpmnew" || -r "$f.rpmsave" or $b->set_sensitive(0)
							  }) ]
				  } @{$p2r{$pkg}}
			      } keys %p2r ],
			  [ gtksignal_connect(Gtk2::Button->new(N("Ok")),
					      clicked => sub { Gtk2->main_quit }) ]);
    return 0;
}

sub perform_installation {  #- (partially) duplicated from /usr/sbin/urpmi :-(
    my ($urpm) = @_;

    my $grpmi = '/usr/sbin/grpmi';
    -x $grpmi or fatal_msg(N("Program missing"),
			   N("A required program is missing (grpmi). Check your installation.")), myexit(-1);

    my $fatal_msg;
    my @error_msgs;
    local $urpm->{fatal} = sub { $fatal_msg = $_[1]; printf STDERR "%s\n", $_[1]; die };
    local $urpm->{error} = sub { push @error_msgs, $_[0]; printf STDERR "%s\n", $_[0] };

    eval {
	standalone::explanations("Removing package $_") foreach keys %{$urpm->{state}{ask_remove}};

	my %pkgs = map { $_->id => undef } grep { $_->flag_selected } @{$urpm->{depslist}}; 
	my ($local_sources, $list, $local_to_removes) = $urpm->get_source_packages(\%pkgs);
	foreach my $l (@$list) {
	    standalone::explanations("Installing package $_") foreach sort values %$l;
	}
	if (!$local_sources && (!$list || !@$list)) {
	    interactive_msg_(N("Unable to get source packages."),
			     N("Unable to get source packages, sorry. %s",
			     @error_msgs ? N("\n\nError(s) reported:\n%s", join("\n", @error_msgs)) : ''));
	    die "return 1\n";
	}
	foreach (@$local_to_removes) {
	    unlink $_;
	}

	my %sources = $urpm->download_source_packages($local_sources, $list,
						      ask_for_medium => sub {
							  interactive_msg_(N("Change medium"),
									   N("Please insert the medium named \"%s\" on device [%s]", @_),
									   yesno => 1, text => { yes => N("Ok"), no => N("Cancel") }) });
	my @rpms_install = grep { !/\.src\.rpm$/ } values %{$urpm->extract_packages_to_install(\%sources) || {}};
	my @rpms_upgrade = grep { !/\.src\.rpm$/ } values %sources;

	if (@rpms_install || @rpms_upgrade) {
	    foreach (@rpms_install, @rpms_upgrade) {
		m|^/| && ! -e $_ or next;
		interactive_msg_(N("Installation failed"),
				 N("Installation failed, some files are missing.\nYou may want to update your sources database.").
				 (@error_msgs ? N("\n\nError(s) reported:\n%s", join("\n", @error_msgs)) : ''));
		die "return 1\n";
	    }
	    %{$urpm->{state}{ask_remove}} and slow_func(N("Please wait, removing packages to allow others to be upgraded..."),
							sub { system('rpm', '-e', '--nodeps', keys %{$urpm->{state}{ask_remove}}) });
	    if (my $pid = fork()) {
		$w->{rwindow}->set_sensitive(0);
		while (!waitpid($pid, c::WNOHANG())) {
		    select(undef, undef, undef, 0.1);
		    ugtk2::flush();
		}
		$w->{rwindow}->set_sensitive(1);
	    } else {
		exec($grpmi, if_($options{'no-verify-rpm'}, '--no-verify-rpm'), (map { ("-noupgrade", $_) } @rpms_install), @rpms_upgrade)
		  or print(STDERR "   *** ERROR *** Could not exec $grpmi.\n"), c::_exit(-1);
	    }
	    my $exitstatus = $?;
	    $urpm->try_umounting_removables;
	    my %pkg2rpmnew;
	    foreach my $u (@rpms_upgrade) {
		$u =~ m|/([^/]+-[^-]+-[^-]+)\.[^\./]+\.rpm$|
		  and $pkg2rpmnew{$1} = [ grep { m|^/etc| && (-r "$_.rpmnew" || -r "$_.rpmsave") }
					  map { chomp_($_) } `rpm -ql $1` ];
	    }
	    dialog_rpmnew(N("The installation is finished; %s.\n\nSome configuration files were created as `.rpmnew' or `.rpmsave',\nyou may now inspect some in order to take actions:", $exitstatus ? N("some packages failed to install\ncorrectly")
			    : N("everything was installed correctly")),
			  %pkg2rpmnew)
	      && !$exitstatus and interactive_msg_(N("Everything installed successfully"),
						   N("All requested packages were installed successfully."));
	    die "return $exitstatus\n";
	} else {
	    $urpm->try_umounting_removables;
	    interactive_msg_(N("No package found for installation."),
			     N("Unrecoverable error: no package found for installation, sorry."));
	}
    };
    if ($@) {
	if ($@ =~ /^return (\S+)\n$/) {
	    return $1;
	} else {
	    interactive_msg_(N("Problem during installation"),
			     N("There was a problem during the installation:\n\n%s", $fatal_msg));
	    return 1;
	}
    } else {
	return 0;
    }
}


# -=-=-=---=-=-=---=-=-=-- remove packages -=-=-=---=-=-=---=-=-=-

sub get_installed_pkgs {
    use URPM;

    my $wait = wait_msg_(N("Please wait, reading packages database..."));
    my @base = qw(basesystem);
    my (%base, %basepackages);
    my $db = db();
    my $sig_handler = sub { undef $db; exit 3 };
    local $SIG{INT} = $sig_handler;
    local $SIG{QUIT} = $sig_handler;
    while (defined(local $_ = shift @base)) {
	exists $basepackages{$_} and next;
	$db->traverse_tag(/^\// ? 'path' : 'whatprovides', [ $_ ], sub {
			      push @{$basepackages{$_}}, my_fullname($_[0]);
			      push @base, $_[0]->requires_nosense;
			  });
    }
    foreach (values %basepackages) {
	my $n = @$_;
	foreach (@$_) {
	    $base{$_} = \$n;
	}
    }
    my %installed_pkgs;
    $db->traverse(sub {
		      my ($pkg) = @_;
		      my $fullname = my_fullname($pkg);
		      if (!$base{$fullname} || ${$base{$fullname}} != 1) {
			  #- I need to extract summary and description since they'll be lost when $pkg->pack_header
			  $installed_pkgs{$fullname} = { selected => 0, pkg => $pkg, summary => $pkg->summary,
							 description => beautify_description($pkg->description) };
			  $base{$fullname} and $installed_pkgs{$fullname}{base} = \${$base{$fullname}};
		      }
		      $pkg->pack_header;
		  });
    remove_wait_msg($wait);
    (new urpm, \%installed_pkgs);
}

sub perform_removal {
    my ($urpm, $pkgs) = @_;
    my @toremove = grep { $pkgs->{$_}{selected} } keys %$pkgs;
    standalone::explanations("Removing package $_") foreach sort @toremove;
    my @results;
    slow_func(N("Please wait, removing packages..."),
	      sub { @results = $urpm->install(\@toremove, {}, {}, translate_message => 1) });
    if (@results) {
	interactive_msg_(N("Problem during removal"),
			 N("There was a problem during the removal of packages:\n\n%s", join("\n",  @results)));
	return 1;
    } else {
	return 0;
    }
}


# -=-=-=---=-=-=---=-=-=-- main -=-=-=---=-=-=---=-=-=-

if ($options{'merge-all-rpmnew'}) {
    my %pkg2rpmnew;
    print "Searching .rpmnew and .rpmsave files...\n";
    db->traverse(sub {
		     my $n = my_fullname($_[0]);
		     $pkg2rpmnew{$n} = [ grep { m|^/etc| && (-r "$_.rpmnew" || -r "$_.rpmsave") } map { chomp_($_) } $_[0]->files ];
		 });
    print "done.\n";
    $typical_width = 280;
    dialog_rpmnew('', %pkg2rpmnew) and print "Nothing to do.\n";
    myexit(0);
}


readconf();

if (!member($MODE, @$already_splashed)) {
    interactive_msg('rpmdrake',
N("%s

Is it ok to continue?",
        $MODE eq 'remove' ?
  N("Welcome to the software removal tool!

This tool will help you choose which software you want to remove from
your computer.")
      : $MODE eq 'update' ?
  N("Welcome to MandrakeUpdate!

This tool will help you choose the updates you want to install on your
computer.")
      :
  N("Welcome to the software installation tool!

Your Mandrake Linux system comes with several thousands of software
packages on CDROM or DVD. This tool will help you choose which software
you want to install on your computer."))
  , yesno => 1) or myexit(-1);
	push @$already_splashed, $MODE;
    }

if ($MODE eq 'remove') {
    run_treeview_dialog(sub { get_installed_pkgs() }, \&perform_removal);
} elsif ($MODE eq 'update') {
    run_treeview_dialog(sub { get_installable_pkgs(1, @_) }, \&perform_installation);
} else {
    run_treeview_dialog(sub { get_installable_pkgs() }, \&perform_installation);
}

writeconf();

myexit(0);