#!/usr/bin/perl

# $Id$

#- Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 MandrakeSoft SA
#- Copyright (C) 2005, 2006 Mandriva SA
#-
#- 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, 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.

use strict;
use urpm;
use urpm::args;
use urpm::msg;
use urpm::install;
use urpm::media;
use urpm::select;
use urpm::get_pkgs;
use urpm::signature;
use urpm::util qw(untaint difference2 member);

#- contains informations to parse installed system.
my $urpm = new urpm;
#URPM::setVerbosity(7);

#- default options.
our $update = 0;
our $media = '';
our $searchmedia;
our $excludemedia = '';
our $sortmedia = '';
our $synthesis = '';
our $allow_medium_change = 0;
our $auto_select = 0;
our $auto_update = 0;
our $no_install = 0;
our $no_remove = 0;
our $src = 0;
our $install_src = 0;
our $clean = 0;
our $noclean = 0;
my $split_level = 20;
my $split_length = 1;
our $force = 0;
our $parallel = '';
our $env = '';
our $test = 0;
our $all = 0;
our $rpm_opt = "vh";
our $use_provides = 1;
our $verbose = 0;
our $logfile = '';
our $restricted = 0;
our $nomd5sum = 0;
our $forcekey = 0;

my @files;
my @src_files;
my @names;
my @src_names;

$ENV{PATH} = "/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin";
delete @ENV{qw(ENV BASH_ENV IFS CDPATH)};
$ENV{HOME} ||= "/root";
$ENV{USER} ||= "root";

sub usage () {
    print N("urpmi version %s
Copyright (C) 1999-2006 Mandriva.
This is free software and may be redistributed under the terms of the GNU GPL.

usage:
", $urpm::VERSION) . N("  --help         - print this help message.
") . N("  --media        - use only the given media, separated by comma.
") . N("  --excludemedia - do not use the given media, separated by comma.
") . N("  --update       - use only update media.
") . N("  --searchmedia  - use only the given media to search requested packages.
") . N("  --sortmedia    - sort media according to substrings separated by comma.
") . N("  --synthesis    - use the given synthesis instead of urpmi db.
") . N("  --auto         - non-interactive mode, assume default answers to questions.
") . N("  --auto-select  - automatically select packages to upgrade the system.
") . N("  --auto-update  - update media then upgrade the system.
") . N("    --no-md5sum    - disable MD5SUM file checking.
") . N("    --force-key    - force update of gpg key.
") . N("  --no-uninstall - never ask to uninstall a package, abort the installation.
") . N("  --no-install   - don't install packages (only download)
") . N("  --keep         - keep existing packages if possible, reject requested
                   packages that lead to removals.
") . N("  --split-level  - split in small transaction if more than given packages
                   are going to be installed or upgraded,
                   default is %d.
", $split_level) . N("  --split-length - small transaction length, default is %d.
", $split_length) . N("  --fuzzy, -y    - impose fuzzy search.
") . N("  --src, -s      - next package is a source package.
") . N("  --install-src  - install only source package (no binaries).
") . N("  --clean        - remove rpm from cache before anything else.
") . N("  --noclean      - don't clean rpms from cache.
") . N("  --force        - force invocation even if some packages do not exist.
") . N("  --allow-nodeps - allow asking user to install packages without
                   dependencies checking.
") . N("  --allow-force  - allow asking user to install packages without
                   dependencies checking and integrity.
") . N("  --parallel     - distributed urpmi across machines of alias.
") . N("  --root         - use another root for rpm installation.
") . N("  --use-distrib  - configure urpmi on the fly from a distrib tree, useful
                   to install a chroot with --root option.
") . N("    --probe-synthesis - use synthesis file.
") . N("    --probe-hdlist - use hdlist file.
") . N("  --wget         - use wget to retrieve distant files.
") . N("  --curl         - use curl to retrieve distant files.
") . N("  --prozilla     - use prozilla to retrieve distant files.
") . N("  --curl-options - additional options to pass to curl
") . N("  --rsync-options- additional options to pass to rsync
") . N("  --wget-options - additional options to pass to wget
") . N("  --prozilla-options - additional options to pass to prozilla
") . N("  --limit-rate   - limit the download speed.
") . N("  --resume       - resume transfer of partially-downloaded files
                   (--no-resume disables it, default is disabled).
") . N("  --proxy        - use specified HTTP proxy, the port number is assumed
                   to be 1080 by default (format is <proxyhost[:port]>).
") . N("  --proxy-user   - specify user and password to use for proxy
                   authentication (format is <user:password>).
") . N("  --bug          - output a bug report in directory indicated by
                   next arg.
") . N("  --env          - use specific environment (typically a bug report).
") . N("  --verify-rpm   - verify rpm signature before installation
                   (--no-verify-rpm disables it, default is enabled).
") . N("  --test         - only verify if the installation can be achieved correctly.
") . N("  --excludepath  - exclude path separated by comma.
") . N("  --excludedocs  - exclude doc files.
") . N("  --ignoresize   - don't verify disk space before installation.
") . N("  --ignorearch   - allow to install rpms for unmatched architectures.
") . N("  --noscripts    - do not execute package scriptlet(s)
") . N("  --repackage    - Re-package the files before erasing
") . N("  --skip         - packages which installation should be skipped
") . N("  --more-choices - when several packages are found, propose more choices
                   than the default.
") . N("  --nolock       - don't lock rpm db.
") . N("  --strict-arch  - upgrade only packages with the same architecture.
") . N("  -a             - select all matches on command line.
") . N("  -p             - allow search in provides to find package.
") . N("  -P             - do not search in provides to find package.
") . N("  -q             - quiet mode.
") . N("  -v             - verbose mode.
") . "\n" . N("  names or rpm files given on command line will be installed.
");
    exit(0);
}

# Parse command line
my $command_line = join " ", @ARGV;
my @ARGVcopy; # keep a copy, in case we have to restart

# Expand *.urpmi arguments
if (member('--restricted', @ARGV)) {
    @ARGVcopy = @ARGV;
} else {
    foreach my $a (@ARGV) {
	if ($a =~ /\.urpmi$/) {
	    open my $fh, '<', $a or do { warn "Can't open $a: $!\n"; next };
	    push @ARGVcopy, map { chomp; $_ } <$fh>;
	    close $fh;
	} else {
	    push @ARGVcopy, $a;
	}
    }
    @ARGV = @ARGVcopy;
}

# Parse command line options
urpm::args::parse_cmdline(urpm => $urpm);

if (@ARGV && $auto_select) {
    print STDERR N("Error: can't use --auto-select along with package list.\n");
    exit 1;
}

# Verify that arguments were given
unless (@ARGV || $auto_select) {
    if ($options{bug}) {
	print STDERR N("Error: To generate a bug report, specify the usual command-line arguments
along with --bug.\n");
	exit 1;
    }
    usage();
}

# Process the rest of the arguments
foreach (@ARGV) {
    if (/\.(?:rpm|spec)$/) {
	if (/\.(?:src\.rpm|spec)$/) {
	    push @src_files, $_;
	} else {
	    push @files, untaint($_);
	}
	next;
    }
    if ($src) {
	push @src_names, $_;
    } else {
	push @names, $_;
    }
    $src = 0; #- reset switch for next package.
}

#- use install_src to promote all names as src package.
if ($install_src) {
    @files and $urpm->{fatal}(1, N("You can't install binary rpm files when using --install-src"));
    push @src_names, @names;
    @names = ();
    #- allow to use --install-src as a non-root user
    $options{nolock} = 1;
}

#- rurpmi checks
if ($restricted) {
    urpm::error_restricted($urpm) if @files;
    #- force some options
    foreach (qw(keep verify-rpm)) { $urpm->{options}{$_} = 1 }
    #- forbid some other options
    urpm::error_restricted($urpm) if $options{root} || $options{usedistrib} || $force || $env || $parallel || $synthesis || $auto_update;
    foreach (qw(allow-nodeps allow-force curl-options rsync-options wget-options prozilla-options noscripts)) {
	urpm::error_restricted($urpm) if $urpm->{options}{$_};
    }
}

#- prepare bug report.
my $bug = $options{bug};
if ($bug) {
    mkdir $bug or $urpm->{fatal}(8, (-d $bug
	    ? N("Directory [%s] already exists, please use another directory for bug report or delete it", $bug)
	    : N("Unable to create directory [%s] for bug report", $bug)));
    #- copy all synthesis file used, along with configuration of urpmi
    system("cp", "-af", $urpm->{skiplist}, $urpm->{instlist}, $urpm->{config}, $bug)
	and die N("Copying failed");
    #- log everything for bug report.
    $logfile = "$bug/urpmi.log";
}

if ($env) {
    -d $env or $urpm->{fatal}(8, N("Environment directory %s does not exist", $env));
    print N("using specific environment on %s\n", $env);
    $logfile = "$env/urpmi_env.log";
    unlink $logfile;
    #- setting new environment.
    $urpm->{config} = "$env/urpmi.cfg";
    $urpm->{skiplist} = "$env/skip.list";
    $urpm->{instlist} = "$env/inst.list";
    $urpm->{statedir} = $env;
} else {
    if ($< != 0) {
	#- need to be root if binary rpms are to be installed
	$auto_select || @names || @files and $urpm->{fatal}(1, N("Only superuser is allowed to install packages"));
    }
}

unless ($bug || $install_src || $env || $urpm->{options}{'allow-force'} || $options{root}) {
    require urpm::sys;
    urpm::sys::check_fs_writable() or $urpm->{fatal}(1, N("Error: %s appears to be mounted read-only.
Use --allow-force to force operation.", $urpm::sys::mountpoint));
}

unless ($bug || $env || $test) {
    sys_log("called with: $command_line");
}

my ($pid_out, $pid_err);
if ($logfile && !$INC{"Devel/Trace.pm"}) {
    bug_log(scalar localtime(), " urpmi called with $command_line\n");

    open(my $SAVEOUT, ">&STDOUT"); select $SAVEOUT; $| = 1;
    open(my $SAVEERR, ">&STDERR"); select $SAVEERR; $| = 1;

    #- fork twice to copy stdout and stderr to $logfile
    unless ($pid_out = open STDOUT, "|-") {
	local $_;
	while (<STDIN>) {
	    open my $fh, ">>$logfile"; select $fh; $| = 1;
	    select $SAVEOUT; $| = 1;
	    $/ = \1;
	    print $SAVEOUT $_;
	    print $fh $_;
	    close $fh;
	}
	exit 0;
    }
    unless ($pid_err = open STDERR, "|-") {
	local $_;
	while (<STDIN>) {
	    open my $fh, ">>$logfile"; select $fh; $| = 1;
	    select $SAVEERR; $| = 1;
	    $/ = \1;
	    print $SAVEERR $_;
	    print $fh $_;
	    close $fh;
	}
	exit 0;
    }

    #- log to SAVEERR instead of STDERR
    unless ($bug) {
	$urpm->{fatal} = sub { printf $SAVEERR "%s\n", $_[1]; exit($_[0]) };
	$urpm->{error} = sub { printf $SAVEERR "%s\n", $_[0] };
	$urpm->{log}   = sub { printf $SAVEOUT "%s\n", $_[0] };
    }
}

#- make unbuffered
select STDERR; $| = 1;
select STDOUT; $| = 1;

#- log is only for verbose runs.
$verbose > 0 or $urpm->{log} = sub {};

if (exists $urpm->{options}{'priority-upgrade'} && $urpm->{options}{'priority-upgrade'} eq '') {
    # we were run with --no-priority-upgrade (we were just restarted.)
    # so, no need to update the media again
    $auto_update = 0;
    # temporary hack : if we were using an old version of URPM (eg: when
    # upgrading from 2006), file handles might have leaked, so close them (with
    # some heuristics.)
    require urpm::sys;
    urpm::sys::fix_fd_leak();
    # also, clean up rpm db log files, because rpm might have been upgraded
    unlink glob('/var/lib/rpm/__db.*') unless $options{root};
}

my $urpmi_lock = !$env && !$options{nolock} && urpm::lock::urpmi_db($urpm);

#- should we ignore arch compatibility
if ($urpm->{options}{ignorearch}) { urpm::shunt_ignorearch() }

my %config_hash = (
    excludemedia => $excludemedia,
    media => $media,
    nocheck_access => $env || $< != 0,
    parallel => $parallel,
    root => $options{root},
    searchmedia => $searchmedia,
    cmdline_skiplist => $options{skip},
    sortmedia => $sortmedia,
    synthesis => $synthesis,
    update => $update,
    usedistrib => $options{usedistrib},
    probe_with => $options{probe_with},
);

$options{root} and $urpm->{options}{'priority-upgrade'} = '';
if ($auto_update && !$bug && !$env) {
    #- For translators : there are several media here
    $urpm->{log}(N("Updating media...\n"));
    #- FIXME we need to configure it twice; otherwise
    #- some settings are lost (like the skiplist) for
    #- some reason.
    urpm::media::configure($urpm, %config_hash);
    urpm::media::update_media($urpm, 
	all => 1,
	callback => \&urpm::download::sync_logger,
	noclean => $noclean,
	quiet => $verbose < 0,
	nomd5sum => $nomd5sum,
	forcekey => $forcekey,
    );
    foreach (@{$urpm->{media} || []}) {
	$_->{tempignore} and delete $_->{ignore};
    }
}

urpm::media::configure($urpm, %config_hash);

if ($bug) {
    require urpm::bug_report;
    urpm::bug_report::rpmdb_to_synthesis($urpm, "$bug/rpmdb.cz", $options{root});
}

#- get back activated default values of boolean options.
exists $urpm->{options}{'split-level'} or $urpm->{options}{'split-level'} = $split_level;
exists $urpm->{options}{'split-length'} or $urpm->{options}{'split-length'} = $split_length;
# comma-separated list of packages that should be installed first,
# and that trigger an urpmi restart
exists $urpm->{options}{'priority-upgrade'}
    or $urpm->{options}{'priority-upgrade'} = 'rpm,perl-URPM,urpmi,glibc';

my $state = {};
my %requested = $urpm->register_rpms(@files, @src_files);

#- finish bug environment creation.
if ($bug) {
    urpm::bug_report::write_urpmdb($urpm, $bug);
    urpm::bug_report::copy_requested($urpm, $bug, \%requested);
}

my $rpm_lock = !$env && !$options{nolock} && urpm::lock::rpm_db($urpm, 'exclusive');

#- search the packages according to the selection given by the user.
my $search_result = '';
if (@names) {
    $search_result = urpm::select::search_packages($urpm,
	\%requested, [ @names ],
	all => $all,
	use_provides => $use_provides,
	fuzzy => $urpm->{options}{fuzzy},
    ) || $force or exit 1;

    if (%requested) {
	$urpm->{log}("found package(s): " . join(" ", map { scalar $urpm->{depslist}[$_]->fullname } keys %requested));
    }
}
if (@src_names) {
    $search_result = urpm::select::search_packages($urpm, \%requested, [ @src_names ],
	all => $all,
	use_provides => $use_provides,
	fuzzy => $urpm->{options}{fuzzy},
	src => 1,
    ) || $force or exit 1;
}

sub ask_choice {
    my ($urpm, $_db, $_state, $choices) = @_;
    my $n = 1; #- default value.
    my (@l) = map {
	my ($name, $summary) = (scalar($_->fullname), $_->summary);
	$_->flag_installed ?
          #-PO: here format is "<package_name>: <summary> (to upgrade)"
          ($_->summary ? N("%s: %s (to upgrade)", $name, $summary) :
           #-PO: here format is "<package_name> (to upgrade)"
           N("%s (to upgrade)", $name)) :
             #-PO: here format is "<package_name>: <summary> (to install)"
             $_->flag_upgrade ? ($_->summary ? N("%s: %s (to install)", $name, $summary) :
                                 #-PO: here format is "<package_name> (to install)"
                                 N("%s (to install)", $name)) : $name;
    } @$choices;

    if (@l > 1 && !$urpm->{options}{auto}) {
	print N("One of the following packages is needed:"), "\n";
	my $i = 0;
	foreach (@l) { print " " . ++$i . "- $_\n" }
	$n = message_input(N("What is your choice? (1-%d) ", $i), undef, range_min => 0, range => $i);
	defined($n) && $n ne "0" or exit 1; # abort.
	if ($n =~ /\D/) {
	    my @nn = map { $choices->[$_ - 1] } grep { !/\D/ } split /[, \t]+/, $n;
	    @nn or exit 1;
	    return @nn;
	}
    }
    $choices->[$n - 1];
}

#- do the resolution of dependencies between requested package (and auto selection if any).
#- handle parallel option if any.
#- return value is true if program should be restarted (in order to take care of important
#- packages being upgraded (problably urpmi and perl-URPM, but maybe rpm too, and glibc also ?).
my $restart_itself = urpm::select::resolve_dependencies($urpm,
    $state,
    \%requested,
    rpmdb => $env && "$env/rpmdb.cz",
    auto_select => $auto_select,
    callback_choices => \&ask_choice,
    install_src => $install_src,
    keep => $urpm->{options}{keep},
    nodeps => $urpm->{options}{'allow-nodeps'} || $urpm->{options}{'allow-force'},
    priority_upgrade => $test || $env ? '' : $urpm->{options}{'priority-upgrade'},
);

my @unselected_uninstalled = @{$state->{unselected_uninstalled} || []};
if (@unselected_uninstalled) {
    my $list = join "\n", map { $_->name . '-' . $_->version . '-' . $_->release  } @unselected_uninstalled;
    my $msg = N("The following packages can't be installed because they depend on packages
that are older than the installed ones:\n%s", $list);
    if ($urpm->{options}{auto}) {
	print "$msg\n";
    } else {
	my $noexpr = N("Nn");
	my $yesexpr = N("Yy");
	message_input(
	    $msg . N("\nContinue installation anyway?") . N(" (Y/n) "),
	    $force && $yesexpr,
	    boolean => 1,
	) =~ /[$noexpr]/
	    and exit 0;
    }
}

my @ask_unselect = urpm::select::unselected_packages($urpm, $state);
if (@ask_unselect) {
    my $list = urpm::select::translate_why_unselected($urpm, $state, @ask_unselect);
    my $msg = N("Some requested packages cannot be installed:\n%s", $list);
    if ($urpm->{options}{auto}) {
	print "$msg\n";
    } else {
	my $noexpr = N("Nn");
	my $yesexpr = N("Yy");
	message_input(
	    $msg . N("\nContinue installation anyway?") . N(" (Y/n) "),
	    $force && $yesexpr,
	    boolean => 1,
	) =~ /[$noexpr]/
	    and exit 0;
    }
}

my @ask_remove = $urpm->{options}{'allow-force'} ? @{[]} : urpm::select::removed_packages($urpm, $state);
if (@ask_remove) {
    {
	my $db = urpm::db_open_or_die($urpm, $options{root});
	urpm::select::find_removed_from_basesystem($urpm, $db, $state, sub {
	    my $urpm = shift @_;
	    foreach (@_) {
		$urpm->{error}(N("removing package %s will break your system", $_));
	    }
	    @_ and $no_remove = 1;
	});
    }
    my $list = urpm::select::translate_why_removed($urpm, $state, @ask_remove);

    if ($no_remove && !$force) {
	print N("The installation cannot continue because the following packages
have to be removed for others to be upgraded:\n%s\n", $list), "\n";
	exit 0;
    }

    my $msg = N("The following packages have to be removed for others to be upgraded:\n%s", $list);
    if ($test) {
	$msg = "$msg\n" . N("(test only, removal will not be actually done)");
    }
    if ($urpm->{options}{auto}) {
	print "$msg\n";
    } else {
	my $yesexpr = N("Yy");
	message_input($msg . N(" (y/N) "), $force && $yesexpr, boolean => 1) =~ /[$yesexpr]/ or exit 0;
    }
}

#- package to install as a array of strings.
my @to_install;

#- check if there is at least one package to install that
#- has not been given by the user.
my $ask_user = $env || $search_result eq 'substring';
my $sum = 0;
my @root_only;

foreach my $pkg (sort { $a->name cmp $b->name } @{$urpm->{depslist}}[keys %{$state->{selected}}]) {
    #- reflect change in flag usage, now requested is set whatever a package is selected or not,
    #- but required is always set (so a required but not requested is a pure dependency).
    $ask_user ||= !$pkg->flag_requested || $auto_select || $parallel;

    my $fullname = $pkg->fullname;
    if (!$env && $install_src && $pkg->arch ne 'src') {
	push @root_only, $fullname;
    } elsif ($install_src || $pkg->arch ne 'src') {
	$sum += $pkg->size;
	push @to_install, $fullname;
    }
}
$urpm->{nb_install} = @to_install;
if ($env) {
    my $msg = $#to_install
      ? N("To satisfy dependencies, the following packages are going to be installed")
      : N("To satisfy dependencies, the following package is going to be installed");
    my $msg2 = N("(%d packages, %d MB)", $urpm->{nb_install}, toMb($sum));
    my $p = join "\n", @to_install;
    print "$msg:\n$p\n$msg2\n";
    exit 0; #- exit now for specific environment.
}
if (@root_only) {
    print N("You need to be root to install the following dependencies:\n%s\n", join ' ', @root_only);
    exit 1;
} elsif (!$urpm->{options}{auto} && $ask_user && @to_install) {
    my $msg = $#to_install
      ? N("To satisfy dependencies, the following packages are going to be installed")
      : N("To satisfy dependencies, the following package is going to be installed");
    if ($test) {
	$msg = "$msg\n" . N("(test only, installation will not be actually done)");
    }
    my $msg2 = N("Proceed with the installation of the %d packages? (%d MB)", $urpm->{nb_install}, toMb($sum));
    my $p = join "\n", @to_install;
    my $noexpr = N("Nn");
    my $yesexpr = N("Yy");
    message_input("$msg:\n$p\n$msg2" . N(" (Y/n) "), $force && $yesexpr, boolean => 1) =~ /[$noexpr]/ and exit 0;
}

my ($local_sources, $list) = urpm::get_pkgs::selected2list($urpm,
    $state->{selected},
    clean_all => $clean,
    clean_other => !$noclean && $urpm->{options}{'pre-clean'},
);
unless ($local_sources || $list) {
    $urpm->{fatal}(3, N("unable to get source packages, aborting"));
}

my %sources = %$local_sources;
my %error_sources;

urpm::removable::copy_packages_of_removable_media($urpm,
    $list, \%sources,
    (!$urpm->{options}{auto} || $allow_medium_change) && sub {
	my $msg = N("Please insert the medium named \"%s\" on device [%s]", $_[0], $_[1]);
	my $msg2 = N("Press Enter when ready...");
	if ($ENV{DISPLAY} && $::gui) {
	    #- probably run from a drak tool
	    (my $gmessage) = grep { -x $_ } '/usr/X11R6/bin/gmessage', '/usr/bin/gmessage';
	    if ($gmessage) {
		my $m = to_utf8("\n$msg\n");
		return system($gmessage, '-buttons', N("Ok") . ':1,' . N("Cancel") . ':0', $m);
	    }
	}
	return defined message_input("$msg\n$msg2 ");
    });

#- now create transaction just before installation, this will save user impression of slowness.
#- split of transaction should be disabled if --test is used.
urpm::install::create_transaction($urpm, $state,
			  nodeps => $urpm->{options}{'allow-nodeps'} || $urpm->{options}{'allow-force'},
			  split_level => $urpm->{options}{'split-level'},
			  split_length => !$test && $urpm->{options}{'split-length'});

my ($ok, $nok) = (0, 0);
my @errors;

foreach my $set (@{$state->{transaction} || []}) {
    my (@transaction_list, %transaction_sources);

    #- put a blank line to separate with previous transaction or user question.
    print "\n";

    #- prepare transaction...
    urpm::install::prepare_transaction($urpm, $set, $list, \%sources, \@transaction_list, \%transaction_sources);

    #- first, filter out what is really needed to download for this small transaction.
    urpm::get_pkgs::download_packages_of_distant_media($urpm,
	\@transaction_list,
	\%transaction_sources,
	\%error_sources,
	quiet => $verbose < 0,
	callback => sub {
#	    my ($mode, $file, $percent, $total, $eta, $speed) = @_;
	    goto &urpm::download::sync_logger;
	},
    );
    my %transaction_sources_install = %{$urpm->extract_packages_to_install(\%transaction_sources, $state) || {}};

    if (!$force && ($urpm->{options}{'verify-rpm'} || grep { $_->{'verify-rpm'} } @{$urpm->{media}})) {
	my @bad_signatures = urpm::signature::check($urpm, \%transaction_sources_install, \%transaction_sources);

	if (@bad_signatures) {
	    my $msg = N("The following packages have bad signatures");
	    my $msg2 = N("Do you want to continue installation ?");
	    my $p = join "\n", @bad_signatures;
	    #- rurpmi always abort here
	    if ($urpm->{options}{auto} || $restricted) {
		print "$msg:\n$p\n\n";
		exit 1;
	    } else {
		my $yesexpr = N("Yy");
		message_input("$msg:\n$p\n$msg2" . N(" (y/N) "), $force && $yesexpr, boolean => 1) =~ /[$yesexpr]/ or exit 1;
	    }
	}
    }

    #- check for local files.
    if (my @missing = grep { m|^/| && ! -e $_ } values %transaction_sources_install, values %transaction_sources) {
	#- Warning : the following message is parsed in urpm::parallel_*
	print N("Installation failed, some files are missing:\n%s\nYou may want to update your urpmi database",
	    join "\n", map { s|([^:]*://[^/:\@]*:)[^/:\@]*(\@.*)|$1xxxx$2|; "    $_" } @missing), "\n";
	++$nok;
	next;
    }

    #- install source package only (whatever the user is root or not, but use rpm for that).
    if ($install_src) {
	if (my @l = grep { /\.src\.rpm$/ } values %transaction_sources_install, values %transaction_sources) {
	    system("rpm", "-i$rpm_opt", @l, ($options{root} ? ("--root", $options{root}) : @{[]}));
	    #- Warning : the following message is parsed in urpm::parallel_*
	    if ($?) {
		print N("Installation failed"), "\n";
		++$nok;
	    }
	}
	next;
    }

    next if $no_install;

    #- clean to remove any src package now.
    foreach (\%transaction_sources_install, \%transaction_sources) {
	foreach my $id (keys %$_) {
	    my $pkg = $urpm->{depslist}[$id] or next;
	    $pkg->arch eq 'src' and delete $_->{$id};
	}
    }

    if (keys(%transaction_sources_install) || keys(%transaction_sources)) {
	if ($parallel) {
	    print N("distributing %s", join(' ', values %transaction_sources_install, values %transaction_sources)), "\n";
	    #- no remove are handle here, automatically done by each distant node.
	    $urpm->{log}("starting distributed install");
	    $urpm->{parallel_handler}->parallel_install(
		[ keys %{$state->{rejected} || {}} ], \%transaction_sources_install, \%transaction_sources,
		test => $test,
		excludepath => $urpm->{options}{excludepath}, excludedocs => $urpm->{options}{excludedocs},
	    );
	} else {
	    my @packnames = (values %transaction_sources_install, values %transaction_sources);
	    (my $common_prefix) = $packnames[0] =~ m!^(.*)/!;
	    if (length($common_prefix) && @packnames == grep { m!^\Q$common_prefix/! } @packnames) {
		#- there's a common prefix, simplify message
		print N("installing %s from %s", join(' ', map { s!.*/!!; $_ } @packnames), $common_prefix), "\n";
	    } else {
		print N("installing %s", join "\n", @packnames), "\n";
	    }
	    my $to_remove = $urpm->{options}{'allow-force'} ? [] : $set->{remove} || [];
	    @$to_remove and print N("removing %s", "@$to_remove"), "\n";
	    bug_log(scalar localtime(), " ", join(' ', values %transaction_sources_install, values %transaction_sources), "\n");
	    $urpm->{log}("starting installing packages");
	    my %install_options_common = (
		test => $test,
		excludepath => $urpm->{options}{excludepath},
		excludedocs => $urpm->{options}{excludedocs},
		repackage   => $urpm->{options}{repackage},
		post_clean_cache => $urpm->{options}{'post-clean'},
		oldpackage => $state->{oldpackage},
		nosize => $urpm->{options}{ignoresize},
		ignorearch => $urpm->{options}{ignorearch},
		noscripts => $urpm->{options}{noscripts},
	    );
	    my @l = urpm::install::install($urpm,
		$to_remove,
		\%transaction_sources_install, \%transaction_sources,
		%install_options_common,
	    );
	    if (@l) {
		#- Warning : the following message is parsed in urpm::parallel_*
		print N("Installation failed:") . "\n" . join("\n",  map { "\t$_" } @l), "\n";
		if ($urpm->{options}{auto} || !$urpm->{options}{'allow-nodeps'} && !$urpm->{options}{'allow-force'}) {
		    ++$nok;
		    ++$urpm->{logger_id};
		    push @errors, @l;
		} else {
		    my $yesexpr = N("Yy");
		    message_input(N("Try installation without checking dependencies? (y/N) "),
				  $force && $yesexpr, boolean => 1) =~ /[$yesexpr]/ or ++$nok, next;
		    $urpm->{log}("starting installing packages without deps");
		    @l = urpm::install::install($urpm,
			$to_remove,
			\%transaction_sources_install, \%transaction_sources,
			nodeps => 1,
			%install_options_common,
		    );
		    if (@l) {
			#- Warning : the following message is parsed in urpm::parallel_*
			print N("Installation failed") . ":\n" . join("\n", map { "\t$_" } @l), "\n";
			if (!$urpm->{options}{'allow-force'}) {
			    ++$nok;
			    ++$urpm->{logger_id};
			    push @errors, @l;
			} else {
			    message_input(N("Try harder to install (--force)? (y/N) "),
					  $force && $yesexpr, boolean => 1) =~ /[$yesexpr]/ or ++$nok, next;
			    $urpm->{log}("starting force installing packages without deps");
			    @l = urpm::install::install($urpm,
				$to_remove,
				\%transaction_sources_install, \%transaction_sources,
				nodeps => 1, force => 1,
				%install_options_common,
			    );
			    if (@l) {
				#- Warning : the following message is parsed in urpm::parallel_*
				print N("Installation failed") . ":\n" . join("\n", map { "\t$_" } @l), "\n";
				++$nok;
				++$urpm->{logger_id};
				push @errors, @l;
			    } else {
				++$ok;
			    }
			}
		    } else {
			++$ok;
		    }
		}
	    } else {
		++$ok;
	    }
	}
    }
}

#- keep a track of error code.
my $exit_code = 0;
if (values %error_sources) {
    #- Warning : the following message is parsed in urpm::parallel_*
    print N("Installation failed, some files are missing:\n%s\nYou may want to update your urpmi database",
	join "\n", map { s|([^:]*://[^/:\@]*:)[^/:\@]*(\@.*)|$1xxxx$2|; "    $_" } values %error_sources), "\n";
    $exit_code = 10;
}
if ($nok) {
    $nok > 1 and print N("%d installation transactions failed", $nok) . (@errors && ":\n" . join("\n", map { "\t$_" } @errors)), "\n";
    if ($exit_code) {
	$exit_code = $ok ? 13 : 14;
    } else {
	$exit_code = $ok ? 11 : 12;
    }
} else {
    if ($test) {
	#- Warning : the following message is parsed in urpm::parallel_*
	print N("Installation is possible"), "\n";
    } elsif (@names || @src_names || @files || @src_files || $auto_select) {
	if (@{$state->{transaction} || []} == 0 && @ask_unselect == 0) {
	    if ($verbose >= 0) {
		if ($auto_select) {
		    print N("Packages are up to date"), "\n";
		} else {
		    my @l = map { scalar $urpm->{depslist}[$_]->fullname } keys %requested;
		    my $msg = @l > 1 ? N("Packages %s are already installed", join(', ', @l)) : 
		                       N("Package %s is already installed", @l);
		    print "$msg\n";
		}
	    }
	    $exit_code = 15 if our $expect_install;
	}
    }
}

unless ($env || $options{nolock}) {
    $urpmi_lock->unlock;
    $rpm_lock->unlock;

    #- try to umount removable device which may have been mounted.
    urpm::removable::try_umounting_removables($urpm);
}

#- restart urpmi if needed, keep command line for that.
if ($restart_itself && !$exit_code) {
    print N("restarting urpmi"), "\n";
    #- it seems to work correctly with exec instead of system, provided
    #- STDOUT or STDERR are not closed before (else no output at all).
    #- added --no-priority-upgrade to make sure no restart will be done after this one.
    #- renamed bug report dir as /restarted to avoid exit because it already exists
    #- This permits to have in a same dir bug reports before and after the restart
    @ARGV = @ARGVcopy;
    my @arg = ($ARGV[0], map {
	    $ARGV[$_] . ($ARGV[$_ - 1] eq '--bug' ? "/restarted" : "");
	} (1 .. $#ARGV));
    exec $0, '--no-priority-upgrade', @arg;
}

#- this help flushing correctly by closing this file before (piped on tee).
#- but killing them is generally better.
if ($pid_err || $pid_out) {
    kill 15, $pid_err, $pid_out;
    close STDERR;
    close STDOUT;
}

exit($exit_code);