add a first shot at TLDownload.pm

git-svn-id: svn://tug.org/texlive/trunk@16340 c570f23f-e606-0410-a88d-b1316a301751

2 files changed, 2280 insertions, 0 deletions

diff --git a/Master/tlpkg/dev/TLDownload.pm b/Master/tlpkg/dev/TLDownload.pm
new file mode 100644
index 00000000000..66966e58d1f
--- /dev/null
+++ b/Master/tlpkg/dev/TLDownload.pm
@@ -0,0 +1,286 @@
+# $Id$
+# TeXLive::TLDownload.pm - module for abstracting the download modes
+# Copyright 2009 Norbert Preining
+#
+# This file is licensed under the GNU General Public License version 2
+# or any later version.
+
+package TeXLive::TLDownload;
+
+use TeXLive::TLUtils;
+
+my $svnrev = '$Revision$';
+my $_modulerevision;
+if ($svnrev =~ m/: ([0-9]+) /) {
+  $_modulerevision = $1;
+} else {
+  $_modulerevision = "unknown";
+}
+sub module_revision {
+  return $_modulerevision;
+}
+
+# since Net::HTTP and Net::FTP are shipped by the same packages
+# we only test for Net::HTTP, if that fails, let us know ;-)
+my $net_lib_avail = 0;
+eval { require Net::HTTP; };
+if ($@) {
+  debug("Net::HTTP is not available, falling back to wget mode.\n");
+  $net_lib_avail = 0;
+} else {
+  require Net::HTTP;
+  require Net::FTP;
+  require HTTP::Status;
+  $net_lib_avail = 1;
+  debug("Net::HTTP available!\n");
+}
+
+
+sub new
+{
+  my $class = shift;
+  my %params = @_;
+  my $self = {
+    server      => $params{'server'},
+    mode        => defined($params{'mode'}) ? $params{'mode'} : "wget",
+  };
+  if ($self->{'mode'} eq "http" ||
+      $self->{'mode'} eq "ftp") {
+    die "Net::HTTP and Net::FTP is not available, cannot use http/ftp mode."
+      if (!$net_lib_avail);
+  } elsif ($self->{'mode'} eq "wget") {
+    # noting to be done
+  } else {
+    die "Unknown download mode: ", $self->{'mode'};
+  }
+  bless $self, $class;
+  return $self;
+}
+
+
+
+sub start_connection
+{
+  my $self = shift;
+  if ($self->mode eq "wget") {
+    debug("TLDownload::start_connection: no need to call start_connection in wget mode\n");
+    return 1;
+  }
+  if (!defined($self->server)) {
+    die "TLDownload::start_connection: No server defined, cannot start connection.";
+  }
+  if ($self->mode eq "http") {
+    my $handle = Net::HTTP->new(Host => $self->server, KeepAlive => 1);
+    if (!$handle) {
+      tlwarn("TLDownload::start_connection: Could not connect to server " . $self->server . "\n");
+      return 0;
+    }
+    # now we got a handle, save it simply into $self for later reuse
+    $self->{'handle'} = $handle;
+    return 1;
+  }
+  if ($self->mode eq "ftp") {
+    my $handle = Net::FTP->new($self->server, Debug => 0);
+    if (!$handle) {
+      tlwarn("TLDownload::start_connection: Could not connect to server " . $self->server . "\n");
+      return 0;
+    }
+    if (!$handle->login("anonymous",'-texlive@')) {
+      tlwarn("TLDownload::start_connection: Cannot login to server: " . $handle->message . "\n");
+      return 0;
+    }
+    if (!$handle->binary) {
+      tlwarn("TLDownload::start_connection: Cannot set transfer mode to binary: " . $handle->message . "\n");
+      return 0;
+    }
+    # now we got a handle, save it simply into $self for later reuse
+    $self->{'handle'} = $handle;
+    return 1;
+  }
+  # we are still here, that cannot be
+  return 0;
+}
+
+
+
+sub get_file
+{
+  my ($self, $url, $out, $size) = @_;
+  #
+  # first split the $url into components. we might get a full url
+  # or some relative path
+  my $protocol;
+  my $server;
+  my $path;
+  if ($url =~ m!^(http|ftp)://([^/]*)(/.*)$!i) {
+    $protocol = lc($1);
+    $server = lc($2);
+    $path = $3;
+  } elsif ($url =~ m!^/.*$!) {
+    $path = $url;
+  } else {
+    tlwarn("TLDownload::get_file: do not understand that url: $url\n");
+    return 0;
+  }
+  #
+  # wget case
+  # simple fall back to TLUtils::_download_file
+  #
+  if ($self->mode eq "wget") {
+    if (!defined($protocol)) {
+      tlwarn("TLDownload::get_file: cannot download relative url $url in wget mode.\n");
+      return 0;
+    }
+    my $wget;
+    if (defined($::progs{'wget'})) {
+      $wget = $progs->{'wget'};
+    } else {
+      tlwarn ("TLDownload::get_file: programs not set up, trying literal wget\n");
+      $wget = "wget";
+    }
+    return TeXLive::TLUtils::_download_file($url, $out, $wget);
+  }
+  #
+  # check for incompatible server names or protocols
+  #
+  if (defined($protocol) && ($protocol ne $self->mode)) {
+    tlwarn("TLDownload::get_file: protocols mismatch, url uses $protocol, server " . $self->mode . ".\n");
+    return 0;
+  }
+  if (defined($server) && ($server ne lc($self->server))) {
+    tlwarn("TLDownload::get_file: server mismatch, url uses $server, but current download server is " . $self->server . ".\n");
+    return 0;
+  }
+  #
+  # ftp mode
+  #
+  if ($self->mode eq "ftp") {
+    if (!defined($self->{'handle'})) {
+      if (!$self->start_connection) {
+        # start_connection already warns ...
+        return 0;
+      }
+    }
+    # now we should have a $handle
+    my $handle = $self->{'handle'};
+    if (!$handle->get($path, $out)) {
+      tlwarn("TLDownload::get_file: Cannot get $path: " . $handle->message . "\n");
+      return 0;
+    }
+    return 1;
+  }
+  #
+  # http mode
+  #
+  if ($self->mode eq "http") {
+    if (!defined($self->{'handle'})) {
+      if (!$self->start_connection) {
+        # start_connection already warns ...
+        return 0;
+      }
+    }
+    # now we should have a $handle
+    my $handle = $self->{'handle'};
+    if (! $handle->write_request(GET => $path, 'User-Agent' => 'texlive (net::http)')) {
+      tlwarn("TLDownload::get_file: Cannot send GET request.\n");
+      return 0;
+    }
+    my ($code, $msg, %h) = $handle->read_response_headers;
+    if (HTTP::Status::is_error($code)) {
+      tlwarn("Problem downloading from server: $msg\n");
+      return 0;
+    }
+    my $buffer = "";
+    my $bytes_read = 0;
+    while (1) {
+      my $buf;
+      my $n = $handle->read_entity_body($buf, (defined($size) ? $size : 4096));
+      if (!defined($n)) {
+        tlwarn("TLDownload::get_file: Cannot read file from server: $!\n");
+        return 0;
+      }
+      last unless $n;
+      dddebug("- http read got $n bytes\n");
+      $bytes_read += $n;
+      $buffer .= $buf;
+    }
+    if (defined($size) && ($bytes_read != $size)) {
+      tlwarn("TLDownload::get_file: didn't get $size bytes, expect breakage\n");
+    }
+    if (!open (OUT, ">$out")) {
+      tlwarn("TLDownload::get_file: cannot open $out for writing: $!\n");
+      return 0;
+    }
+    binmode(OUT);
+    print OUT $buffer;
+    if (!close(OUT)) {
+      tlwarn("TLDownload::get_file: strange, cannot close file handle ...\n");
+    }
+    return 1;
+  }
+  #
+  # we are still here, strange
+  #
+  tlwarn("TLDownload::get_file: still around, strange, mode = " . $self->mode . "\n");
+  return 0;
+}
+
+
+
+sub mode
+{
+  my $self = shift;
+  if (@_) { $self->{'mode'} = shift }
+  return $self->{'mode'};
+}
+sub server
+{
+  my $self = shift;
+  if (@_) { $self->{'server'} = shift }
+  return $self->{'server'};
+}
+
+1;
+__END__
+
+
+=head1 NAME
+
+C<TeXLive::TLDownload> -- TeX Live Download abstraction module
+
+=head1 SYNOPSIS
+
+  use TeXLive::TLDownload;
+
+  $TeXLive::TLDownload::net_lib_avail
+  my $dl = TeXLive::TLDownload->new(server => "www.foo.com", mode => "http");
+  my $dl = TeXLive::TLDownload->new(server => "www.foo.com", mode => "ftp");
+  my $dl = TeXLive::TLDownload->new(server => "http://www.foo.com", mode => "wget");
+  $dl->start_connection;
+  $dl->get_file($relpath, $output [, $expected_size ]);
+
+=head1 DESCRIPTION
+
+The C<TeXLive::TLDownload> module handles TeX Live Download abstractions
+to make it possible to use persistent network connections instead of
+calling wget for each single file. It depends on the modules Net::HTTP
+and Net::FTP, and will check for these at loading time. If they are
+not present only "wget" mode will be available.
+
+=head1 SEE ALSO
+
+
+=head1 AUTHORS AND COPYRIGHT
+
+This script and its documentation were written for the TeX Live
+distribution (L<http://tug.org/texlive>) and both are licensed under the
+GNU General Public License Version 2 or later.
+
+=cut
+
+### Local Variables:
+### perl-indent-level: 2
+### tab-width: 2
+### indent-tabs-mode: nil
+### End:
+# vim:set tabstop=2 expandtab: #
diff --git a/Master/tlpkg/dev/install-tl-using-TLDownload b/Master/tlpkg/dev/install-tl-using-TLDownload
new file mode 100755
index 00000000000..1731680dab8
--- /dev/null
+++ b/Master/tlpkg/dev/install-tl-using-TLDownload
@@ -0,0 +1,1994 @@
+#!/usr/bin/env perl
+# $Id: install-tl 15740 2009-10-10 15:30:56Z karl $
+#
+# Copyright 2007, 2008, 2009 Reinhard Kotucha, Norbert Preining
+# This file is licensed under the GNU General Public License version 2
+# or any later version.
+#
+# Be careful when changing wording: Every normal informational message
+# output here must be recognized by the long grep in tl-update-tlnet.
+#
+# TODO:
+# - with -gui pop up a transient window showing:
+#      testing for compressed archive packages ...
+#      testing for uncompressed live system ...
+#      testing for network access ...
+#      loading tlpdb, this can take some time ...
+#   (that, and maybe some others can be done with the waitVariableX
+#   thingy as described in the Perl/Tk book in the chapter that can be
+#   found on the net)   (Werner 28.10.08)
+# - at the end of the installation after the welcome message if there
+#   was an error during installation (grep for Error in the logfile)
+#   then give a warning. (email hh tlbuild 2009-06-03)
+
+my $svnrev = '$Revision: 15740 $';
+$svnrev =~ m/: ([0-9]+) /;
+$::installerrevision = $1;
+
+# taken from 00texlive.config: release, $tlpdb->config_release;
+our $texlive_release;
+
+BEGIN {
+  $^W = 1;
+  my $Master;
+  my $me = $0;
+  $me =~ s!\\!/!g if $^O =~ /^MSWin(32|64)$/i;
+  if ($me =~ m!/!) {
+    ($Master = $me) =~ s!(.*)/[^/]*$!$1!;
+  } else {
+    $Master = ".";
+  }
+  $::installerdir = $Master;
+
+  # All platforms: add the installer modules
+  unshift (@INC, "$::installerdir/tlpkg");
+}
+
+use Cwd 'abs_path';
+use Getopt::Long qw(:config no_autoabbrev);
+use Pod::Usage;
+
+use TeXLive::TLUtils qw(platform platform_desc
+   which getenv win32 unix info log debug tlwarn ddebug tldie
+   get_system_tmpdir member process_logging_options rmtree
+   mkdirhier make_var_skeleton make_local_skeleton install_package copy
+   install_packages dirname setup_programs welcome welcome_paths);
+#use TeXLive::TLMedia;
+use TeXLive::TLPOBJ;
+use TeXLive::TLPDB;
+use TeXLive::TLConfig;
+use TeXLive::TLDownload;
+
+if (win32) {
+  require TeXLive::TLWinGoo;
+  TeXLive::TLWinGoo->import( qw(
+    &win_version
+    &is_vista
+    &admin
+    &non_admin
+    &reg_country
+    &expand_string
+    &global_tmpdir
+    &get_system_path
+    &get_user_path
+    &setenv_reg
+    &unsetenv_reg
+    &adjust_reg_path_for_texlive
+    &register_extension
+    &unregister_extension
+    &register_file_type
+    &unregister_file_type
+    &broadcast_env
+    &update_assocs
+    &add_desktop_shortcut
+    &add_menu_shortcut
+    &remove_desktop_shortcut
+    &remove_menu_shortcut
+    &create_uninstaller
+  ));
+}
+
+use strict;
+
+# debugging/logging cmd lines options:
+# -q     shut up terminal output but warning messages
+# -v     do a bit of debugging to stdout and logfile
+#        repeated use increases the value of verbosity
+#
+@::LOGLINES = ();
+#
+# $install{$packagename} == 1 if it should be installed
+my %install;
+
+#
+# the different modules have to assign a code blob to this global variable
+# which starts the installation.
+# Example: In install-menu-text.pl there is
+#   $::run_menu = \&run_menu_text;
+#
+$::run_menu = sub { die "no UI defined." ; };
+
+# the default scheme to be installed
+my $default_scheme='scheme-full';
+
+# some arrays where the lists of collections to be installed are saved
+# our for menus
+our @collections_std;
+our @collections_lang;
+our @collections_lang_doc;
+# The global variable %vars is an associative list which contains all
+# variables and their values which can be changed by the user.
+# needs to be our since TeXLive::TLUtils uses it
+#
+# The following values are taken from the remote tlpdb using the
+#   $tlpdb->option_XXXXX
+# settings (i.e., taken from tlpkg/tlpsrc/00texlive.installation.tlpsrc
+#
+#        'option_path' => 0,
+#        'option_sys_bin' => '/usr/local/bin',
+#        'option_sys_man' => '/usr/local/man',
+#        'option_sys_info' => '/usr/local/info',
+#        'option_doc' => 1,
+#        'option_src' => 1,
+#        'option_fmt' => 0,
+#        'option_letter' => 0,
+our %vars=( # 'n_' means 'number of'.
+        'this_platform' => '',
+        'n_systems_available' => 0,
+        'n_systems_selected' => 0,
+        'n_collections_selected' => 0,
+        'n_collections_available' => 0,
+        'total_size' => 0,
+        'src_splitting_supported' => 1,
+        'doc_splitting_supported' => 1,
+        'selected_scheme' => $default_scheme,
+        'from_dvd' => 0,
+    );
+
+# option handling
+my $opt_from_dvd = 0;
+my $opt_gui = (win32() ? "wizard" : "text");
+my $opt_help = 0;
+my $opt_location = "";
+my $opt_no_gui = 0;
+my $opt_nonadmin = 0;
+my $opt_portable = 0;
+my $opt_print_arch = 0;
+my $opt_profileseed = "";
+my $opt_profile = "";
+my $opt_scheme = "";
+my $opt_custom_bin;
+my $opt_version = 0;
+my $opt_force_arch;
+
+# show all options even those not relevant for that arch
+$::opt_all_options = 0;
+
+# default language for GUI installer
+$::lang = "en";
+
+# use the fancy directory selector for TEXDIR
+$::alternative_selector = 0;
+
+# do not debug translations by default
+$::debug_translation = 0;
+
+#
+# some strings to describe the different meanings of option_file_assoc
+$::fileassocdesc[0] = "None";
+$::fileassocdesc[1] = "Only new";
+$::fileassocdesc[2] = "All";
+
+# if we find a file installation.profile we ask the user whether we should
+# continue with the installation
+# note, we are in the installer directory.
+if (-r "installation.profile") {
+  print "ABORTED INSTALLATION FOUND: installation.profile\n";
+  print "Do you want to continue with the exact same settings as before (y/N): ";
+  my $answer = <STDIN>;
+  if ($answer =~ m/^y(es)?$/i) {
+    $opt_profile = "installation.profile";
+  }
+}
+
+
+# first process verbosity/quiet options
+process_logging_options();
+# now the others
+GetOptions(
+           "custom-bin=s"   => \$opt_custom_bin,
+           "fancyselector"  => \$::alternative_selector,
+           "from_dvd"       => \$opt_from_dvd,
+           "gui:s"          => \$opt_gui,
+           "lang=s"         => \$::opt_lang,
+           "location|url|repository|repo=s" => \$opt_location,
+           "no-cls",	    # $::opt_no_cls in install-menu-text-pl
+           "no-gui"         => \$opt_no_gui,
+           "non-admin"      => \$opt_nonadmin,
+           "portable"       => \$opt_portable,
+           "print-arch"     => \$opt_print_arch,
+           "force-arch=s"   => \$opt_force_arch,
+           "debug-translation" => \$::debug_translation,
+           "profile-seed=s" => \$opt_profileseed,
+           "profile=s"      => \$opt_profile,
+           "scheme=s"       => \$opt_scheme,
+           "all-options"    => \$::opt_all_options,
+           "version"        => \$opt_version,
+           "help|?"         => \$opt_help) or pod2usage(1);
+
+if ($opt_gui eq "") {
+  # the --gui option was given with an empty argument, set it to perltk
+  $opt_gui = "perltk";
+}
+if ($opt_gui eq "expert") {
+  $opt_gui = "perltk";
+}
+
+if (win32()) {
+  pod2usage(-exitstatus => 0,
+            -verbose => 2,
+            -noperldoc => 1,
+            -output  => \*STDOUT) if $opt_help;
+} else {
+  pod2usage(-exitstatus => 0, -verbose => 2, -file => $0) if $opt_help;
+}
+
+if ($opt_version) {
+  print "install-tl (TeX Live Cross Platform Installer)",
+        " revision $::installerrevision\n";
+  if (open (REL_TL, "$::installerdir/release-texlive.txt")) {
+    # print first and last lines, which have the TL version info.
+    my @rel_tl = <REL_TL>;
+    print $rel_tl[0];
+    print $rel_tl[$#rel_tl];
+    close (REL_TL);
+  }
+  if ($::opt_verbosity > 0) {
+    print "Revision of modules:";
+    print "\nTLConfig: " . TeXLive::TLConfig->module_revision();
+    print "\nTLUtils:  " . TeXLive::TLUtils->module_revision();
+    print "\nTLPOBJ:   " . TeXLive::TLPOBJ->module_revision();
+    print "\nTLPDB:    " . TeXLive::TLPDB->module_revision();
+    print "\nTLWinGoo: " . TeXLive::TLWinGoo->module_revision() if win32();
+    print "\n";
+  }
+  exit 0;
+}
+
+if ($#ARGV >= 0) {
+  # we still have arguments left, should only be gui, otherwise die
+  if ($ARGV[0] =~ m/^gui$/i) {
+    $opt_gui = "perltk";
+  } else {
+    die "$0: Extra arguments `@ARGV'; try --help if you need it.\n";
+  }
+}
+
+
+if (defined($::opt_lang)) {
+  $::lang = $::opt_lang;
+}
+
+if ($opt_profile) {
+  if (-r $opt_profile) {
+    info("Automated TeX Live installation using profile: $opt_profile\n");
+  } else {
+    $opt_profile = "";
+    info("Profile $opt_profile not readable, continuing in interactive mode.\n");
+  }
+}
+
+if ($opt_nonadmin and win32()) {
+  non_admin();
+}
+
+
+# the TLPDB instances we will use. $tlpdb is for the one from the installation
+# media, while $localtlpdb is for the new installation
+# $tlpdb must be our because it is used in install-menu-text.pl
+our $tlpdb;
+my $localtlpdb;
+my $location;
+
+# $finished == 1 if the menu call already did the installation
+my $finished = 0;
+@::info_hook = ();
+
+my $system_tmpdir=get_system_tmpdir();
+my $media;
+
+# special uses of install-tl:
+if ($opt_print_arch) {
+  print platform()."\n";
+  exit 0;
+} elsif ($opt_portable) {
+  &do_portable ();
+}
+
+
+# continuing with normal install
+
+# check as soon as possible for GUI functionality to give people a chance
+# tp interrupt.
+if (($opt_gui ne "text") && !$opt_no_gui && ($opt_profile eq "")) {
+  # try to load Tk.pm, but don't die if it doesn't work
+  eval { require Tk; };
+  if ($@) {
+    # that didn't work out, so warn the user and continue with text mode
+    tlwarn("Cannot load Tk, maybe something is missing and\n");
+    tlwarn("maybe http://tug.org/texlive/distro.html#perltk can help.\n");
+    tlwarn("Error message from loading Tk:\n");
+    tlwarn("  $@\n");
+    tlwarn("Continuing in text mode...\n");
+    $opt_gui = "text";
+  }
+  eval { my $foo = Tk::MainWindow->new; $foo->destroy; };
+  if ($@) {
+    tlwarn("perl/Tk unusable, cannot create main windows.\n");
+    if (platform() eq "universal-darwin") {
+      tlwarn("That could be because X11 is not installed or started.\n");
+    }
+    tlwarn("Error message from creating MainWindow:\n");
+    tlwarn("  $@\n");
+    tlwarn("Continuing in text mode...\n");
+    $opt_gui = "text";
+  }
+  if ($opt_gui eq "text") {
+    # we switched from GUI to non-GUI mode, tell the user and wait a bit
+    tlwarn("\nSwitching to text mode installer, if you want to cancel, do it now.\n");
+    tlwarn("Waiting for 3 second\n");
+    sleep(3);
+  }
+}
+
+#
+if (defined($opt_force_arch)) {
+  tlwarn("Overriding platform to $opt_force_arch\n");
+  $::_platform_ = $opt_force_arch;
+}
+
+# initialize the correct platform
+platform();
+$vars{'this_platform'} = $::_platform_;
+
+# we do not support cygwin < 1.7, so check for that
+if (!$opt_custom_bin && (platform() eq "i386-cygwin")) {
+  chomp( my $un = `uname -r`);
+  if ($un =~ m/^(\d+)\.(\d+)\./) {
+    if ($1 < 2 && $2 < 7) {
+      tldie("\nSorry, the TL binaries require at least cygwin 1.7.\n");
+    }
+  }
+}
+
+if (!setup_programs ("$::installerdir/tlpkg/installer", "$::_platform_")) {
+  tldie("$0: Goodbye.\n");
+}
+
+# determine where we will find the distribution to install from.
+#
+$location = $opt_location;
+$location || ($location = "$::installerdir");
+if ($location =~ m!^(ctan$|(http|ftp)://)!i) {
+  $location =~ s,/(tlpkg|archive)?/*$,,;  # remove any trailing tlpkg or /
+  if ($location =~ m/^ctan$/i) {
+    $location = TeXLive::TLUtils::give_ctan_mirror();
+  } elsif ($location =~ m/^$TeXLiveServerURL/) {
+    my $mirrorbase = TeXLive::TLUtils::give_ctan_mirror_base();
+    $location =~ s,^($TeXLiveServerURL|ctan$),$mirrorbase,;
+  }
+  $TeXLiveURL = $location;
+  $media = 'NET';
+} else {
+  # remove leading file:/+ part
+  $location =~ s!^file://*!/!i;
+  $location = abs_path($location);
+  # remove trailing \ or / (e.g. root of dvd drive on w32)
+  $location =~ s,[\\\/]$,,;
+  if (-d "$location/$Archive") {
+    $media='CD';
+  } elsif (-d "$location/texmf/web2c") {
+    $media='DVD';
+  } else {
+    if ($opt_location) {
+      # user gave a --location but nothing can be found there, so die
+      die "$0: cannot find installation source at $opt_location.\n";
+    }
+    # no --location given, but NET installation
+    $TeXLiveURL = $location = TeXLive::TLUtils::give_ctan_mirror();
+    $media = 'NET';
+  }
+}
+info("Installing TeX Live $TeXLive::TLConfig::ReleaseYear from: $location\n");
+
+info("Platform: ", platform(), " => \'", platform_desc(platform), "\'\n");
+if ($opt_custom_bin) {
+  if (-d $opt_custom_bin) {
+    info("Platform overridden, binaries taken from $opt_custom_bin\nand put into bin/custom!\n");
+  } else {
+    tldie("Argument for -custom-bin needs to be directory with TeX Live binaries!\n");
+  }
+}
+if ($media eq "DVD") {
+  info("Distribution: live (uncompressed)\n");
+} elsif ($media eq "CD") {
+  info("Distribution: inst (compressed)\n");
+} elsif ($media eq "NET") {
+  info("Distribution: net  (downloading)\n");
+  info("Using URL: $TeXLiveURL\n");
+  my ($prot, $server, $subpath) = ($TeXLiveURL =~ m!(http|ftp)://([^/]*)(/.*)$!i);
+  if ($TeXLive::TLDownload::net_lib_avail) {
+    info("Trying to setup permanent connection to server using Net::$prot...\n");
+    $::current_server = TeXLive::TLDownload->new(mode => $prot,
+      server => $server);
+    if ($::current_server->start_connection) {
+      info("... success\n");
+    } else {
+      $::current_server = undef;
+      info("connection setup not successful, falling back to wget mode.\n");
+    }
+  }
+} else {
+  info("Distribution: $media\n");
+}
+info("Directory for temporary files: $system_tmpdir\n");
+
+if ($opt_from_dvd and ($media ne "DVD")) {
+  print "Not running from DVD; 'from_dvd' option not applicable\n";
+  $opt_from_dvd = 0;
+}
+$vars{'from_dvd'} = $opt_from_dvd;
+
+load_tlpdb();
+
+log("Installer revision: $::installerrevision\n");
+log("Database revision: " . $tlpdb->config_revision . "\n");
+
+# correctly set the splitting support
+# for DVD we always support splitting
+if (($media eq "NET") || ($media eq "CD")) {
+  $vars{'src_splitting_supported'} = $tlpdb->config_src_container;
+  $vars{'doc_splitting_supported'} = $tlpdb->config_doc_container;
+}
+$texlive_release = $tlpdb->config_release;
+# if the release from the remote TLPDB does not agree with the
+# TLConfig::ReleaseYear in the first 4 places break out here.
+# Why only the first four places: some optional network distributions
+# might use
+#   release/2009-foobar
+if ($media eq "NET" &&
+    $texlive_release !~ m/^$TeXLive::TLConfig::ReleaseYear/) {
+  die "The release version of the installation source and\nthe installation media do not agree:\nsource: $texlive_release\nmedia: $TeXLive::TLConfig::ReleaseYear\nPlease report to tex-live\@tug.org";
+}
+set_platforms_supported();
+set_texlive_default_dirs();
+set_install_platform();
+initialize_collections();
+
+# initialize the scheme from the command line value, if given.
+if ($opt_scheme) {
+  # add the scheme- prefix if they didn't give it.
+  $opt_scheme = "scheme-$opt_scheme" if $opt_scheme !~ /^scheme-/;
+  my $scheme = $tlpdb->get_package($opt_scheme);
+  if (defined($scheme)) {
+    select_scheme($opt_scheme);  # select it
+  } else {
+    tlwarn("Scheme $opt_scheme not defined, ignoring it.\n");
+  }
+}
+
+
+if ($opt_profile eq "") {
+  if ($opt_profileseed) {
+    read_profile("$opt_profileseed");
+  }
+  # do the normal interactive installation.
+  #
+  # here we could load different menu systems. Currently several things
+  # are "our" so that the menu implementation can use it. The $tlpdb, the
+  # %var, and all the @collection*
+  # install-menu-*.pl have to assign a code ref to $::run_menu which is
+  # run, and should change ONLY stuff in %vars
+  # The allowed keys in %vars should be specified somewhere ...
+  # the menu implementation should return
+  #    MENU_INSTALL  do the installation
+  #    MENU_ABORT    abort every action immediately, no cleanup
+  #    MENU_QUIT     try to quit and clean up mess
+  our $MENU_INSTALL = 0;
+  our $MENU_ABORT   = 1;
+  our $MENU_QUIT    = 2;
+  our $MENU_ALREADYDONE = 3;
+  $opt_gui = "text" if ($opt_no_gui);
+  # finally do check for additional screens in the $opt_gui setting:
+  # format:
+  #   --gui <plugin>:<a1>,<a2>,...
+  # which will passed to run_menu (<a1>, <a2>, ...)
+  #
+  my @runargs;
+  if ($opt_gui =~ m/^([^:]*):(.*)$/) {
+    $opt_gui = $1;
+    @runargs = split ",", $2;
+  }
+  if (-r "$::installerdir/tlpkg/installer/install-menu-${opt_gui}.pl") {
+    require("installer/install-menu-${opt_gui}.pl");
+  } else {
+    tlwarn("UI plugin $opt_gui not found,\n");
+    tlwarn("Using text mode installer.\n");
+    require("installer/install-menu-text.pl");
+  }
+
+  # before we start the installation we check for the existence of
+  # a previous installation, and in case we ship inform the UI
+  {
+    my $tlmgrwhich = which("tlmgr");
+    if ($tlmgrwhich) {
+      my $dn = dirname($tlmgrwhich);
+      $dn = abs_path("$dn/../..");
+      # The "make Karl happy" case, check that we are not running install-tl
+      # from the same tree where tlmgr is hanging around
+      my $install_tl_root = abs_path($::installerdir);
+      my $tlpdboldpath = "$dn/$TeXLive::TLConfig::InfraLocation/$TeXLive::TLConfig::DatabaseName";
+      if (-r $tlpdboldpath && $dn ne $install_tl_root) {
+        debug ("found old installation in $dn\n");
+        push @runargs, "-old-installation-found=$dn";
+      }
+    }
+  }
+
+  my $ret = &{$::run_menu}(@runargs);
+  if ($ret == $MENU_QUIT) {
+    do_cleanup();
+    flushlog();
+    exit(1);
+  }
+  if ($ret == $MENU_ABORT) {
+    # omit do_cleanup().
+    flushlog();
+    exit(2);
+  }
+  if ($ret == $MENU_ALREADYDONE) {
+    debug("run_menu has already done the work ... cleaning up.\n");
+    $finished = 1;
+  }
+  if (!$finished && ($ret != $MENU_INSTALL)) {
+    tlwarn("Unknown return value of run_menu: $ret\n");
+    exit(3);
+  }
+} else {
+  read_profile($opt_profile);
+}
+
+if (!$finished) {
+  # do the actual installation
+  # win32: first, remove trailing slash from texdir[w]
+  # in case it is the root of a drive
+  $vars{'TEXDIR'} =~ s![/\\]$!!;
+  $vars{'TEXDIRW'} =~ s![/\\]$!!;
+  info("Installing to: $vars{TEXDIRW}\n");
+  do_installation();
+}
+
+do_cleanup();
+
+exit(0);
+
+
+###################################################################
+#
+# FROM HERE ON ONLY SUBROUTINES
+# NO VARIABLE DECLARATIONS
+#
+###################################################################
+
+sub do_installation {
+  if (win32()) {
+    non_admin() if !$vars{'option_w32_multi_user'};
+  }
+  if ($vars{'n_collections_selected'} <= 0) {
+    tlwarn("Nothing selected, nothing to install, exiting!\n");
+    exit 1;
+  }
+  # do the actual installation
+  my $h;
+  prepare_installation();
+  if (!$vars{'from_dvd'}) {
+    calc_depends();
+    save_options_into_tlpdb();
+    do_install_packages();
+    if ($opt_custom_bin) {
+      $vars{'this_platform'} = "custom";
+      my $TEXDIR="$vars{'TEXDIR'}";
+      mkdirhier("$TEXDIR/bin/custom");
+      for my $f (<$opt_custom_bin/*>) {
+        copy($f, "$TEXDIR/bin/custom");
+      }
+    }
+  }
+  # now we save every scheme that is fully covered by the stuff we have
+  # installed to the $localtlpdb
+  foreach my $s ($tlpdb->schemes) {
+    my $stlp = $tlpdb->get_package($s);
+    die ("That cannot happen, $s not defined in tlpdb") unless defined($stlp);
+    my $incit = 1;
+    foreach my $d ($stlp->depends) {
+      if (!defined($localtlpdb->get_package($d))) {
+        $incit = 0;
+        last;
+      }
+    }
+    if ($incit) {
+      $localtlpdb->add_tlpobj($stlp);
+    }
+  }
+  $localtlpdb->save unless $vars{'from_dvd'};
+  do_postinst_stuff();
+  if (win32()) {
+    print welcome();
+  } else {
+    print welcome_paths();
+  }
+}
+
+# do_postinst_stuff has to fix up the texmf tree and install some missing
+# files. The things to do are taken from the install-live.sh installer
+# of former times, and should be critically checked.
+sub do_postinst_stuff {
+  my $TEXDIR="$vars{'TEXDIR'}";
+  my $TEXDIRW="$vars{'TEXDIRW'}";
+  my $TEXMFSYSVAR="$vars{'TEXMFSYSVAR'}";
+  my $TEXMFSYSCONFIG="$vars{'TEXMFSYSCONFIG'}";
+  my $TEXMFLOCAL="$vars{'TEXMFLOCAL'}";
+  my $tmv;
+
+  do_texmf_cnf() unless ($opt_portable);
+
+  #
+  # clean up useless files in texmf-dist/tlpkg as this is only
+  # created by the relocatable packages
+  if (-d "$TEXDIR/$TeXLive::TLConfig::RelocTree/tlpkg") {
+    rmtree("$TEXDIR/TeXLive::TLConfig::RelocTree/tlpkg");
+  }
+
+  # final program execution
+  # we have to do several things:
+  # - clean the environment from spurious TEXMF related variables
+  # - add the bin dir to the PATH
+  # - select perl interpreter and set the correct perllib
+  # - run the programs
+
+  # Step 1: Clean the environment
+  my @TMFVARS0=qw(VARTEXFONTS
+    TEXMF SYSTEXMF VARTEXFONTS
+    TEXMFDBS WEB2C TEXINPUTS TEXFORMATS MFBASES MPMEMS TEXPOOL MFPOOL MPPOOL
+    PSHEADERS TEXFONTMAPS TEXPSHEADERS TEXCONFIG TEXMFCNF);
+  my @TMFVARS1=qw(TEXMFMAIN TEXMFDIST TEXMFLOCAL TEXMFSYSVAR TEXMFSYSCONFIG
+    TEXMFHOME TEXMFVAR TEXMFCONFIG);
+
+  if (defined($ENV{'TEXMFCNF'}) and !$vars{'from_dvd'} and !$opt_portable) {
+    print "WARNING: environment variable TEXMFCNF is set.
+You should know what you are doing.
+We will remove that for the post install actions, but all further
+operations might be disturbed.\n\n";
+  }
+  foreach $tmv (@TMFVARS0) {
+    delete $ENV{$tmv} if (defined($ENV{$tmv}));
+  }
+  if (!$opt_portable) {
+    foreach $tmv (@TMFVARS1) {
+      delete $ENV{$tmv} if (defined($ENV{$tmv}));
+    }
+  }
+  if ($vars{'from_dvd'}) {
+    $ENV{'TEXMFSYSVAR'} = $vars{'TEXMFSYSVAR'};
+    $ENV{'TEXMFCNF'} = $vars{'TEXMFSYSVAR'}."/web2c";
+  }
+
+  # Step 2: Setup the PATH, switch to the new Perl
+
+  my $pathsep=(win32)? ';' : ':';
+  my $plat_bindir="$TEXDIR/bin/$vars{'this_platform'}";
+  my $perl_bindir="$TEXDIR/tlpkg/tlperl/bin";
+  my $perl_libdir="$TEXDIR/tlpkg/tlperl/lib";
+
+## This won't do any good;
+## have to remove other tex directories in calling batchfile
+#  if (win32) {
+#    debug("Removing other TeXs from path\n");
+#    my @newpt = ();
+#    foreach my $d (split (';', $ENV{'PATH'})) {
+#      push @newpt, $d unless TeXLive::TLWinGoo::is_a_texdir($d);
+#    }
+#    $ENV{'PATH'} = join($pathsep, @newpt);
+#    debug("Path after removals(s):\n  $ENV{'PATH'}\n");
+#  }
+
+  debug("Prepending $plat_bindir to PATH\n");
+
+  $ENV{'PATH'}="$plat_bindir" . "$pathsep" . "$ENV{'PATH'}";
+
+  if (win32) {
+    debug("Prepending $perl_bindir to PATH\n");
+    $ENV{'PATH'}="$perl_bindir" . "$pathsep" . "$ENV{'PATH'}";
+    $ENV{'PATH'} =~ s!/!\\!g;
+  }
+
+  debug("\nNew PATH is now:\n");
+  foreach my $dir (split $pathsep, $ENV{'PATH'}) {
+    debug("  $dir\n");
+  }
+  debug("\n");
+
+  if (win32) {
+    $ENV{'PERL5LIB'}="$perl_libdir";
+  }
+
+  #
+  # post install actions
+  #
+
+  # in case we are running from DVD we use the tlpdb from the DVD, otherwise
+  # the one we have locally created, for all the further actions
+  my $usedtlpdb = $vars{'from_dvd'} ? $tlpdb : $localtlpdb;
+
+
+  if (win32()) {
+    debug "Actual environment:\n".`set`."\n\n";
+    debug 'Effective TEXMFCNF: '.`kpsewhich -expand-path=\$TEXMFCNF`."\n";
+  }
+
+  # TODO: can the following two clauses be merged?
+  if (win32()) {
+    create_uninstaller($vars{'TEXDIR'}, $vars{'TEXDIRW'},
+      $vars{'TEXMFSYSVAR'}, $vars{'TEXMFSYSCONFIG'});
+  }
+  # (re-)initialize batchfile for uninstalling shortcuts
+  if (win32() and !$opt_portable) {
+    mkdirhier("$TEXDIRW/tlpkg/installer") if $vars{'from_dvd'};
+  }
+
+  # Step 4: run the programs
+
+  if (!$opt_portable and !$vars{'from_dvd'}) {
+    info("running mktexlsr $TEXDIR/texmf-dist $TEXDIR/texmf\n");
+    system('mktexlsr', "$TEXDIR/texmf-dist", "$TEXDIR/texmf");
+  }
+
+  # we have to generate the various config file. That could be done with
+  # texconfig generate * but Win32 does not have texconfig. But we have
+  # $localtlpdb and this is simple code, so do it directly, i.e., duplicate
+  # the code from the various generate-*.pl scripts
+
+  info("writing fmtutil.cnf data to $TEXMFSYSVAR/web2c/fmtutil.cnf\n");
+  TeXLive::TLUtils::create_fmtutil($usedtlpdb,
+    "$TEXMFSYSVAR/web2c/fmtutil.cnf",
+    "$TEXMFLOCAL/web2c/fmtutil-local.cnf");
+
+  mkdirhier "$vars{'TEXMFSYSCONFIG'}/web2c";
+  info("writing updmap.cfg to $TEXMFSYSCONFIG/web2c/updmap.cfg\n");
+  TeXLive::TLUtils::create_updmap ($usedtlpdb,
+    "$TEXMFSYSCONFIG/web2c/updmap.cfg",
+    "$TEXMFLOCAL/web2c/updmap-local.cfg");
+
+  info("writing language.dat data to $TEXMFSYSVAR/tex/generic/config/language.dat\n");
+  TeXLive::TLUtils::create_language_dat($usedtlpdb,
+    "$TEXMFSYSVAR/tex/generic/config/language.dat",
+    "$TEXMFLOCAL/tex/generic/config/language-local.dat");
+
+  info("writing language.def data to $TEXMFSYSVAR/tex/generic/config/language.def\n");
+  TeXLive::TLUtils::create_language_def($usedtlpdb,
+    "$TEXMFSYSVAR/tex/generic/config/language.def",
+    "$TEXMFLOCAL/tex/generic/config/language-local.def");
+
+  info("running mktexlsr $TEXMFSYSVAR\n");
+  system('mktexlsr', "$TEXMFSYSVAR");
+
+  info("running updmap-sys... ");
+  # system('updmap-sys', '--nohash');
+  log(`updmap-sys --nohash 2>&1`);
+  info("done\n");
+
+  info("re-running mktexlsr $TEXMFSYSVAR\n");
+  system('mktexlsr', "$TEXMFSYSVAR");
+
+  # now work through the options if specified at all
+
+  # letter instead of a4
+  if ($vars{'option_letter'}) {
+    info("Setting default paper size to letter\n");
+    system("tlmgr", "paper", "letter");
+  }
+
+  # all formats option
+  if ($vars{'option_fmt'}) {
+    info("pre-generating all format files (fmtutil-sys --all), be patient...");
+    log(`fmtutil-sys --all 2>&1`);
+    info("done\n");
+  }
+
+  #
+  # do path adjustments: On Windows add/remove to PATH etc, on Unix
+  # set symlinks
+  do_path_adjustments() if $vars{'option_path'};
+
+  # no do the system integration:
+  # on unix this means setting up symlinks
+  # on w32 this means adding to path, settting registry values
+  # on both, we run the postaction directives of the tlp
+  do_tlpdb_postactions();
+}
+
+
+sub do_tlpdb_postactions {
+  info ("running package specific postactions\n");
+  # Run the post installation code in the postaction tlpsrc entries
+  my $usedtlpdb = $vars{'from_dvd'} ? $tlpdb : $localtlpdb;
+  foreach my $package (sort keys %install) {
+    if ($install{$package}) {
+      &TeXLive::TLUtils::do_postaction("install",
+                                       $usedtlpdb->get_package($package),
+                                       $vars{'option_file_assocs'},
+                                       $vars{'option_desktop_integration'},
+                                       $vars{'option_post_code'});
+    }
+  }
+  info ("finished with package specific postactions\n");
+}
+
+sub do_path_adjustments {
+  info ("running path adjustment actions\n");
+  if (win32()) {
+    TeXLive::TLUtils::w32_add_to_path($vars{'TEXDIR'}.'/bin/win32',
+      $vars{'option_w32_multi_user'});
+    #
+    # from_dvd stuff
+    # setenv_reg('TEXMFSYSVAR', $vars{'TEXMFSYSVAR'}) if $vars{'from_dvd'};
+    setenv_reg('TEXMFCNF', $vars{'TEXMFSYSVAR'}.'/web2c') if $vars{'from_dvd'};
+    broadcast_env();
+  } else {
+    TeXLive::TLUtils::add_symlinks($vars{'TEXDIR'}, $vars{'this_platform'},
+      $vars{'option_sys_bin'}, $vars{'option_sys_man'},
+      $vars{'option_sys_info'});
+  }
+  info ("finished with path adjustment actions\n");
+}
+
+
+# we have to adjust the texmf.cnf file to the paths set in the configuration!
+sub do_texmf_cnf {
+  open(TMF,"<$vars{'TEXDIR'}/texmf/web2c/texmf.cnf")
+      or die "$vars{'TEXDIR'}/texmf/web2c/texmf.cnf not found: $!";
+  my @texmfcnflines = <TMF>;
+  close(TMF);
+  my @newtmf;
+  my @changedtmf;
+  # we have to find TEXMFLOCAL TEXMFSYSVAR and TEXMFHOME
+  foreach my $line (@texmfcnflines) {
+    if ($line =~ m/^TEXMFLOCAL/) {
+      # by default TEXMFLOCAL = TEXDIR/../texmf-local, if this is the case
+      # we don't have to change anything from the default
+      my $deftmlocal = dirname($vars{'TEXDIR'});
+      $deftmlocal .= "/texmf-local";
+      if ("$vars{'TEXMFLOCAL'}" eq "$deftmlocal") {
+        push @newtmf, $line;
+      } else {
+        push @newtmf, "TEXMFLOCAL = $vars{'TEXMFLOCAL'}\n";
+        push @changedtmf, "TEXMFLOCAL = $vars{'TEXMFLOCAL'}\n";
+      }
+    } elsif ($line =~ m/^TEXMFSYSVAR/) {
+      # by default TEXMFSYSVAR = TEXDIR/texmf-var, if this is the case
+      # we don't have to change anything from the default
+      if ("$vars{'TEXMFSYSVAR'}" eq "$vars{'TEXDIR'}/texmf-var") {
+        push @newtmf, $line;
+      } else {
+        push @newtmf, "TEXMFSYSVAR = $vars{'TEXMFSYSVAR'}\n";
+        push @changedtmf, "TEXMFSYSVAR = $vars{'TEXMFSYSVAR'}\n";
+      }
+    } elsif ($line =~ m/^TEXMFSYSCONFIG/) {
+      # by default TEXMFSYSCONFIG = TEXDIR/texmf-config, if this is the case
+      # we don't have to change anything from the default
+      if ("$vars{'TEXMFSYSCONFIG'}" eq "$vars{'TEXDIR'}/texmf-config") {
+        push @newtmf, $line;
+      } else {
+        push @newtmf, "TEXMFSYSCONFIG = $vars{'TEXMFSYSCONFIG'}\n";
+        push @changedtmf, "TEXMFSYSCONFIG = $vars{'TEXMFSYSCONFIG'}\n";
+      }
+    } elsif ($line =~ m/^TEXMFHOME/) {
+      # kpse now expands ~ to USERPROFILE, so we don't treat win32 and
+      # unix differently
+      push @newtmf, "TEXMFHOME = $vars{'TEXMFHOME'}\n";
+      if ("$vars{'TEXMFHOME'}" ne "~/texmf") {
+        push @changedtmf, "TEXMFHOME = $vars{'TEXMFHOME'}\n";
+      }
+    } elsif ($line =~ m/^OSFONTDIR/) {
+      if (win32()) {
+        push @newtmf, "OSFONTDIR = \$SystemRoot/fonts//\n";
+        push @changedtmf, "OSFONTDIR = \$SystemRoot/fonts//\n";
+      } else {
+        push @newtmf, $line;
+      }
+    } else {
+      push @newtmf, $line;
+    }
+  }
+  my $TMF;
+  if (!$vars{'from_dvd'}) {
+    $TMF = ">$vars{'TEXDIR'}/texmf.cnf";
+    open(TMF, $TMF) || die "open($TMF) failed: $!";
+    print TMF <<EOF;
+% This texmf.cnf file should contain only your personal changes from the
+% main texmf.cnf.
+%
+% Do NOT change values in the main file (which is in
+% .../texlive/YYYY/texmf/web2c/texmf.cnf), as YOUR CHANGES WILL BE LOST
+% by later updates.
+%
+% If you need to make changes to texmf.cnf, put your custom settings in
+% this file instead, which is YYYY/texmf.cnf.  And insert *only* your
+% changed values.
+%
+EOF
+;
+    foreach (@changedtmf) { print TMF; }
+    #
+    # save the setting of shell_escape to the generated system texmf.cnf
+    # default in texmf/web2c/texmf.cnf is
+    #   shell_escape = p
+    # so we write that only if the user *deselected* this option
+    if (!$vars{"option_write18_restricted"}) {
+      print TMF <<EOF;
+% Disable system commands via \\write18{...}. Please see
+%   texmf/web2c/texmf.cnf
+% for more details.
+shell_escape = 0
+EOF
+;
+    }
+  } else {
+    $TMF = ">$vars{'TEXMFSYSVAR'}/web2c/texmf.cnf";
+    open (TMF, $TMF) || die "open($TMF) failed: $!\n";
+    foreach (@newtmf) { print TMF; }
+  }
+  close(TMF) || warn "close($TMF) failed: $!";
+}
+
+
+sub dump_vars {
+  my $filename=shift;
+  my $fh;
+  if (ref($filename)) {
+    $fh = $filename;
+  } else {
+    open VARS, ">$filename";
+    $fh = \*VARS;
+  }
+  foreach my $key (keys %vars) {
+    print $fh "$key $vars{$key}\n";
+  }
+  close VARS if (!ref($filename));
+  debug("\n%vars dumped to '$filename'.\n");
+}
+
+
+# Determine which platforms are supported.
+sub set_platforms_supported {
+  my @binaries = $tlpdb->available_architectures;
+  for my $binary (@binaries) {
+    unless (defined $vars{"binary_$binary"}) {
+      $vars{"binary_$binary"}=0;
+    }
+  }
+  for my $key (keys %vars) {
+    ++$vars{'n_systems_available'} if ($key=~/^binary/);
+  }
+}
+
+# Environment variables and default values on UNIX:
+#   TEXLIVE_INSTALL_PREFIX         /usr/local/texlive   => $tex_prefix
+#   TEXLIVE_INSTALL_TEXDIR         $tex_prefix/2007     => $TEXDIR
+#   TEXLIVE_INSTALL_TEXMFSYSVAR    $TEXDIR/texmf-var
+#   TEXLIVE_INSTALL_TEXMFSYSCONFIG $TEXDIR/texmf-config
+#   TEXLIVE_INSTALL_TEXMFLOCAL     $tex_prefix/texmf-local
+#   TEXLIVE_INSTALL_TEXMFHOME      '$HOME/texmf'
+
+sub set_texlive_default_dirs {
+  my $tex_prefix;
+  my $texmfsysvar;
+  my $texmfsysconfig;
+  my $texmflocal;
+  my $texmfhome;
+
+  $tex_prefix=getenv('TEXLIVE_INSTALL_PREFIX');
+  if (win32) {
+    $tex_prefix ||= getenv('SystemDrive') . '/texlive';
+    # we use SystemDrive because ProgramFiles requires admin rights
+    # we don't use USERPROFILE here because that will be copied back and
+    # forth on roaming profiles
+  } else {
+    $tex_prefix||='/usr/local/texlive';
+  }
+  $vars{'TEXDIRW'}="$tex_prefix/$texlive_release";
+
+  $texmfsysvar=getenv('TEXLIVE_INSTALL_TEXMFSYSVAR');
+  $texmfsysvar||=$vars{'TEXDIRW'} . '/texmf-var';
+  $vars{'TEXMFSYSVAR'}=$texmfsysvar;
+
+  $texmfsysconfig=getenv('TEXLIVE_INSTALL_TEXMFSYSCONFIG');
+  $texmfsysconfig||=$vars{'TEXDIRW'} . '/texmf-config';
+  $vars{'TEXMFSYSCONFIG'}=$texmfsysconfig;
+
+  $texmflocal=getenv('TEXLIVE_INSTALL_TEXMFLOCAL');
+  $texmflocal||="$tex_prefix/texmf-local";
+  $vars{'TEXMFLOCAL'}=$texmflocal;
+
+  $vars{'TEXDIR'} = $vars{'from_dvd'} ? abs_path($::installerdir) :
+    $vars{'TEXDIRW'};
+
+  $texmfhome=getenv('TEXLIVE_INSTALL_TEXMFHOME');
+  $texmfhome ||= "~";
+  $vars{'TEXMFHOME'}="$texmfhome/texmf";
+}
+
+sub calc_depends {
+  # we have to reset the install hash EVERY TIME otherwise everything will
+  # always be installed since the default is scheme-full which selects
+  # all packages and never deselects it
+  %install=();
+  my $p;
+  my $a;
+
+  # initialize the %install hash with what should be installed
+
+  if ($vars{'selected_scheme'} ne "scheme-custom") {
+    # First look for packages in the selected scheme.
+    my $scheme=$tlpdb->get_package($vars{'selected_scheme'});
+    if (!defined($scheme)) {
+      if ($vars{'selected_scheme'}) {
+        # something is written in the selected scheme but not defined, that
+        # is strange, so warn and die
+        die ("Scheme $vars{'selected_scheme'} not defined, vars:\n");
+        dump_vars(\*STDOUT);
+      }
+    } else {
+      for my $scheme_content ($scheme->depends) {
+        $install{"$scheme_content"}=1 unless ($scheme_content=~/^collection-/);
+      }
+    }
+  }
+
+  # Now look for collections in the %vars hash.  These are not
+  # necessarily the collections required by a scheme.  The final
+  # decision is made in the collections/languages menu.
+  foreach my $key (keys %vars) {
+    if ($key=~/^collection-/) {
+      $install{$key} = 1 if $vars{$key};
+    }
+  }
+
+  # compute the list of archs to be installed
+  my @archs;
+  foreach (keys %vars) {
+    if (m/^binary_(.*)$/ ) {
+      if ($vars{$_}) { push @archs, $1; }
+    }
+  }
+
+  #
+  # work through the addon settings in the %vars hash
+  #if ($vars{'addon_editor'}) {
+  #  $install{"texworks"} = 1;
+  #}
+
+  # if programs for arch=win32 are installed we also have to install
+  # tlperl.win32 which provides the "hidden" perl that will be used
+  # to run all the perl scripts.
+  # Furthermore we install tlgs.win32 and tlpsv.win32, too
+  if (grep(/^win32$/,@archs)) {
+    $install{"tlperl.win32"} = 1;
+    $install{"tlgs.win32"} = 1;
+    $install{"tlpsv.win32"} = 1;
+  }
+
+  # loop over all the packages until it is getting stable
+  my $changed = 1;
+  while ($changed) {
+    # set $changed to 0
+    $changed = 0;
+
+    # collect the already selected packages
+    my @pre_selected = keys %install;
+    debug("initial number of installations: $#pre_selected\n");
+
+    # loop over all the pre_selected and add them
+    foreach $p (@pre_selected) {
+      ddebug("pre_selected $p\n");
+      my $pkg = $tlpdb->get_package($p);
+      if (!defined($pkg)) {
+        tlwarn("$p is mentioned somewhere but not available, disabling it.\n");
+        $install{$p} = 0;
+        next;
+      }
+      foreach my $p_dep ($tlpdb->get_package($p)->depends) {
+        if ($p_dep =~ m/^(.*)\.ARCH$/) {
+          my $foo = "$1";
+          foreach $a (@archs) {
+            $install{"$foo.$a"} = 1 if defined($tlpdb->get_package("$foo.$a"));
+          }
+        } elsif ($p_dep =~ m/^(.*)\.win32$/) {
+          # a win32 package should *only* be installed if we are installing
+          # the win32 arch
+          if (grep(/^win32$/,@archs)) {
+            $install{$p_dep} = 1;
+          }
+        } else {
+          $install{$p_dep} = 1;
+        }
+      }
+    }
+
+    # check for newly selected packages
+    my @post_selected = keys %install;
+    debug("number of post installations: $#post_selected\n");
+
+    # set repeat condition
+    if ($#pre_selected != $#post_selected) {
+      $changed = 1;
+    }
+  }
+
+  # now do the size computation
+  my $size = 0;
+  foreach $p (keys %install) {
+    my $tlpobj = $tlpdb->get_package($p);
+    if (not(defined($tlpobj))) {
+      tlwarn("$p should be installed but "
+             . "is not in texlive.tlpdb; disabling.\n");
+      $install{$p} = 0;
+      next;
+    }
+    $size+=$tlpobj->docsize if $vars{'option_doc'};
+    $size+=$tlpobj->srcsize if $vars{'option_src'};
+    $size+=$tlpobj->runsize;
+    foreach $a (@archs) {
+      $size += $tlpobj->binsize->{$a} if defined($tlpobj->binsize->{$a});
+    }
+  }
+  $vars{'total_size'} =
+    sprintf "%d", ($size * $TeXLive::TLConfig::BlockSize)/1024**2;
+}
+
+sub load_tlpdb {
+  my $master = $location;
+  info("Loading $master/$TeXLive::TLConfig::InfraLocation/$TeXLive::TLConfig::DatabaseName\n");
+  $tlpdb=TeXLive::TLPDB->new(root => "$master");
+  if (!defined($tlpdb)) {
+    die "$0: Could not load TeX Live Database from $master, goodbye.\n";
+  }
+  # set the defaults to what is specified in the tlpdb
+  $vars{'option_doc'} = $tlpdb->option("install_docfiles");
+  $vars{'option_src'} = $tlpdb->option("install_srcfiles");
+  $vars{'option_fmt'} = $tlpdb->option("create_formats");
+  $vars{'option_letter'} = defined($tlpdb->option("paper"))
+                           && ($tlpdb->option("paper") eq "letter" ? 1 : 0);
+  $vars{'option_desktop_integration'} = $tlpdb->option("desktop_integration");
+  $vars{'option_desktop_integration'} = 1 if win32();
+  $vars{'option_path'} = $tlpdb->option("path");
+  $vars{'option_path'} = 1 if win32();
+  $vars{'option_w32_multi_user'} = $tlpdb->option("w32_multi_user");
+  # we have to make sure that this option is set to 0 in case
+  # that a non-admin is running the installations program
+  $vars{'option_w32_multi_user'} = 0 if (win32() && !admin());
+  $vars{'option_file_assocs'} = $tlpdb->option("file_assocs");
+  $vars{'option_post_code'} = $tlpdb->option("post_code");
+  $vars{'option_sys_bin'} = $tlpdb->option("sys_bin");
+  $vars{'option_sys_man'} = $tlpdb->option("sys_man");
+  $vars{'option_sys_info'} = $tlpdb->option("sys_info");
+  $vars{'option_write18_restricted'} = $tlpdb->option("write18_restricted");
+
+  # check that the default scheme is actually present, otherwise switch to
+  # scheme-minimal
+  if (!defined($tlpdb->get_package($default_scheme))) {
+    if (!defined($tlpdb->get_package("scheme-minimal"))) {
+      die("Aborting, cannot find either $default_scheme or scheme_minimal");
+    }
+    $default_scheme = "scheme-minimal";
+    $vars{'selected_scheme'} = $default_scheme;
+  }
+}
+
+sub initialize_collections {
+  foreach my $pkg ($tlpdb->list_packages) {
+    my $tlpobj = $tlpdb->{'tlps'}{$pkg};
+    if ($tlpobj->category eq "Collection") {
+      $vars{"$pkg"}=0;
+      ++$vars{'n_collections_available'};
+      if ($pkg=~/collection-lang/) {
+        push @collections_lang, $pkg;
+      } elsif ($pkg=~/documentation/) {
+        if ($pkg=~/documentation-base/) {
+          push @collections_std, $pkg;
+        } else {
+          push @collections_lang_doc, $pkg;
+        }
+      } else {
+        push @collections_std, $pkg;
+      }
+    }
+  }
+  my $scheme_tlpobj = $tlpdb->get_package($default_scheme);
+  if (defined ($scheme_tlpobj)) {
+    $vars{'n_collections_selected'}=0;
+    foreach my $dependent ($scheme_tlpobj->depends) {
+      if ($dependent=~/^(collection-.*)/) {
+        $vars{"$1"}=1;
+        ++$vars{'n_collections_selected'};
+      }
+    }
+  }
+  if ($vars{"binary_win32"}) {
+    $vars{"collection-wintools"} = 1;
+    ++$vars{'n_collections_selected'};
+  }
+}
+
+sub set_install_platform {
+  my $detected_platform=platform;
+  if ($opt_custom_bin) {
+    $detected_platform = "custom";
+  }
+  my $warn_nobin;
+  my $warn_nobin_x86_64_linux;
+  my $nowarn="";
+  my $wp='***'; # warning prefix
+
+  $warn_nobin="\n$wp WARNING: No binaries for your platform found.  ";
+  $warn_nobin_x86_64_linux="$warn_nobin" .
+      "$wp No binaries for x86_64-linux found, using i386-linux instead.\n";
+
+  my $ret = $warn_nobin;
+  if (defined $vars{"binary_$detected_platform"}) {
+    $vars{"binary_$detected_platform"}=1;
+    $vars{'inst_platform'}=$detected_platform;
+    $ret = $nowarn;
+  } elsif ($detected_platform eq 'x86_64-linux') {
+    $vars{'binary_i386-linux'}=1;
+    $vars{'inst_platform'}='i386-linux';
+    $ret = $warn_nobin_x86_64_linux;
+  } else {
+    if ($opt_custom_bin) {
+      $ret = "$wp Using custom binaries from $opt_custom_bin.\n";
+    } else {
+      $ret = $warn_nobin;
+    }
+  }
+  foreach my $key (keys %vars) {
+    if ($key=~/^binary.*/) {
+       ++$vars{'n_systems_selected'} if $vars{$key}==1;
+    }
+  }
+  return($ret);
+}
+
+sub create_profile {
+  my $profilepath = shift;
+  # The file "TLprofile" is created at the beginning of the
+  # installation process and contains information about the current
+  # setup.  The purpose is to allow non-interactive installations.
+  my $fh;
+  if (ref($profilepath)) {
+    $fh = $profilepath;
+  } else {
+    open PROFILE, ">$profilepath";
+    $fh = \*PROFILE;
+  }
+  my $tim = gmtime(time);
+  print $fh "# texlive.profile written on $tim UTC\n";
+  print $fh "# It will NOT be updated and reflects only the\n";
+  print $fh "# installation profile at installation time.\n";
+  print $fh "selected_scheme $vars{selected_scheme}\n";
+  foreach my $key (sort keys %vars) {
+    print $fh "$key $vars{$key}\n"
+        if $key=~/^collection/ and $vars{$key}==1;
+    print $fh "$key $vars{$key}\n" if $key =~ /^option_/;
+    print $fh "$key $vars{$key}\n" if (($key =~ /^binary_/) && $vars{$key});
+    print $fh "$key $vars{$key}\n" if $key =~ /^TEXDIR/;  # includes TEXDIRW
+    print $fh "$key $vars{$key}\n" if $key =~ /^TEXMFSYSVAR/;
+    print $fh "$key $vars{$key}\n" if $key =~ /^TEXMFSYSCONFIG/;
+    print $fh "$key $vars{$key}\n" if $key =~ /^TEXMFLOCAL/;
+    print $fh "$key $vars{$key}\n" if $key =~ /^TEXMFHOME/;
+    print $fh "$key $vars{$key}\n" if $key =~ /^from_dvd/;
+  }
+  if (!ref($profilepath)) {
+    close PROFILE;
+  }
+}
+
+sub read_profile {
+  my $profilepath = shift;
+  open PROFILE, "<$profilepath"
+    or die "$0: Cannot open profile $profilepath for reading.\n";
+  my %pro;
+  while (<PROFILE>) {
+    chomp;
+    next if m/^[[:space:]]*$/; # skip empty lines
+    next if m/^[[:space:]]*#/; # skip comment lines
+    my ($k,$v) = split (" ", $_, 2); # value might have spaces
+    $pro{$k} = $v;
+  }
+  foreach (keys %vars) {
+    # clear out collections from var
+    if (m/^collection-/) { $vars{$_} = 0; }
+    if (defined($pro{$_})) { $vars{$_} = $pro{$_}; }
+  }
+  # if a profile contains *only* the selected_scheme setting without
+  # any collection, we assume that exactely that scheme should be installed
+  my $coldefined = 0;
+  foreach my $k (keys %pro) {
+    if ($k =~ m/^collection-/) {
+      $coldefined = 1;
+      last;
+    }
+  }
+  # if at least one collection has been defined return here
+  return if $coldefined;
+  # since no collections have been defined in the profile, we
+  # set those to be installed on which the scheme depends
+  my $scheme=$tlpdb->get_package($vars{'selected_scheme'});
+  if (!defined($scheme)) {
+    dump_vars(\*STDOUT);
+    die ("Scheme $vars{selected_scheme} not defined.\n");
+  }
+  for my $scheme_content ($scheme->depends) {
+    $vars{"$scheme_content"}=1 if ($scheme_content=~/^collection-/);
+  }
+}
+
+sub prepare_installation {
+  make_var_skeleton "$vars{'TEXMFSYSVAR'}";
+  make_local_skeleton "$vars{'TEXMFLOCAL'}";
+  mkdirhier "$vars{'TEXMFSYSCONFIG'}";
+
+  if ($vars{'from_dvd'}) {
+    $localtlpdb = $tlpdb;
+  } else {
+    $localtlpdb=new TeXLive::TLPDB;
+    $localtlpdb->root("$vars{'TEXDIR'}");
+  }
+}
+
+
+sub do_install_packages {
+  my @what;
+  foreach my $package (sort keys %install) {
+    push @what, $package if ($install{$package} == 1);
+  }
+  if (!install_packages($tlpdb,$media,$localtlpdb,\@what,
+                        $vars{'option_src'},$vars{'option_doc'})) {
+    my $profile_name = "installation.profile";
+    create_profile($profile_name);
+    tlwarn("Installation failed.\n");
+    tlwarn("Rerunning the installer will try to restart the installation.\n");
+    tlwarn("Or you can restart by running the installer with:\n");
+    if (win32()) {
+      tlwarn("  install-tl.bat --profile $profile_name [EXTRA-ARGS]\n");
+    } else {
+      tlwarn("  install-tl --profile $profile_name [EXTRA-ARGS]\n");
+    }
+    flushlog();
+    exit(1);
+  }
+}
+
+# for later complete removal we want to save some options and values
+# into the local tlpdb:
+# - should links be set, and if yes, the destination (bin,man,info)
+sub save_options_into_tlpdb {
+  $localtlpdb->option ("location", $location);
+  $localtlpdb->option ("create_formats", $vars{'option_fmt'} ? "1" : "0");
+  $localtlpdb->option ("desktop_integration", $vars{'option_desktop_integration'} ? "1" : "0");
+  $localtlpdb->option ("file_assocs", $vars{'option_file_assocs'});
+  $localtlpdb->option ("post_code", $vars{'option_post_code'} ? "1" : "0");
+  $localtlpdb->option ("sys_bin", $vars{'option_sys_bin'});
+  $localtlpdb->option ("sys_info", $vars{'option_sys_info'});
+  $localtlpdb->option ("sys_man", $vars{'option_sys_man'});
+  $localtlpdb->option ("install_docfiles", $vars{'option_doc'} ? "1" : "0");
+  $localtlpdb->option ("install_srcfiles", $vars{'option_src'} ? "1" : "0");
+  $localtlpdb->option ("w32_multi_user", $vars{'option_w32_multi_user'} ? "1" : "0");
+  my @archs;
+  foreach (keys %vars) {
+    if (m/^binary_(.*)$/ ) {
+      if ($vars{$_}) { push @archs, $1; }
+    }
+  }
+  if ($opt_custom_bin) {
+    push @archs, "custom";
+  }
+
+  # only if we forced the platform we do save this option into the tlpdb
+  if (defined($opt_force_arch)) {
+    $localtlpdb->setting ("platform", $::_platform_);
+  }
+  $localtlpdb->setting("available_architectures", @archs);
+  $localtlpdb->save() unless $vars{'from_dvd'};
+}
+
+
+sub import_settings_from_old_tlpdb {
+  my $dn = shift;
+  my $tlpdboldpath = "$dn/$TeXLive::TLConfig::InfraLocation/$TeXLive::TLConfig::DatabaseName";
+  my $previoustlpdb;
+  if (-r $tlpdboldpath) {
+    # we found an old installation, so read that one in and save
+    # the list installed collections into an array.
+    info ("Trying to load old TeX Live Database,\n");
+    info ("ignore warnings on unknown category Documentation\n");
+    $previoustlpdb = TeXLive::TLPDB->new(root => $dn);
+    if ($previoustlpdb) {
+      info ("Importing settings from old installation in $dn\n");
+    } else {
+      tlwarn ("Cannot load old TLPDB, continuing with normal installation.\n");
+      return;
+    }
+  } else {
+    return;
+  }
+  # first import the collections
+  # since the scheme is not the final word we select scheme-custom here
+  # and then set the single collections by hand
+  $vars{'selected_scheme'} = "scheme-custom";
+  $vars{'n_collections_selected'} = 0;
+  # remove the selection of all collections
+  foreach my $entry (keys %vars) {
+    if ($entry=~/^(collection-.*)/) {
+      $vars{"$1"}=0;
+    }
+  }
+  for my $c ($previoustlpdb->collections) {
+    my $tlpobj = $tlpdb->get_package($c);
+    if ($tlpobj) {
+      $vars{$c} = 1;
+      ++$vars{'n_collections_selected'};
+    }
+  }
+  # now take over the path
+  my $oldroot = $previoustlpdb->root;
+  my $newroot = abs_path("$oldroot/..") . "/$texlive_release";
+  $vars{'TEXDIR'} = $newroot;
+  $vars{'TEXDIRW'} = $newroot;
+  $vars{'TEXMFSYSVAR'} = "$newroot/texmf-var";
+  $vars{'TEXMFSYSCONFIG'} = "$newroot/texmf-config";
+  # only TEXMFLOCAL is treated differently, we use what is found by kpsewhich
+  # in 2008 and onward this is defined as
+  # TEXMFLOCAL = $SELFAUTOPARENT/../texmf-local
+  # so kpsewhich -var-value=TEXMFLOCAL returns
+  # ..../2008/../texmf-local
+  # TODO TODO TODO
+  chomp (my $tml = `kpsewhich -var-value=TEXMFLOCAL`);
+  $tml = abs_path($tml);
+  $vars{'TEXMFLOCAL'} = $tml;
+  #
+  # now for the settings
+  # set the defaults to what is specified in the tlpdb
+  $vars{'option_doc'} =
+    $previoustlpdb->option_pkg("00texlive-installation.config",
+                               "install_docfiles");
+  $vars{'option_src'} =
+    $previoustlpdb->option_pkg("00texlive-installation.config",
+                               "install_srcfiles");
+  $vars{'option_fmt'} =
+    $previoustlpdb->option_pkg("00texlive-installation.config",
+                               "create_formats");
+  $vars{'option_desktop_integration'} = 1 if win32();
+  # option_path does not exist in older installation
+  $vars{'option_path'} =
+    $previoustlpdb->option_pkg("00texlive-installation.config",
+                               "create_symlinks");
+  $vars{'option_path'} = 1 if win32();
+  $vars{'option_sys_bin'} =
+    $previoustlpdb->option_pkg("00texlive-installation.config",
+                               "sys_bin");
+  $vars{'option_sys_man'} =
+    $previoustlpdb->option_pkg("00texlive-installation.config",
+                               "sys_man");
+  $vars{'sys_info'} =
+    $previoustlpdb->option_pkg("00texlive-installation.config",
+                               "sys_info");
+  #
+  # import the set of selected architectures
+  my @aar = $previoustlpdb->setting_pkg("00texlive-installation.config",
+                                        "available_architectures");
+  if (@aar) {
+    for my $b ($tlpdb->available_architectures) {
+      $vars{"binary_$b"} = member( $b, @aar );
+    }
+    $vars{'n_systems_available'} = 0;
+    for my $key (keys %vars) {
+      ++$vars{'n_systems_available'} if ($key=~/^binary/);
+    }
+  }
+}
+
+# do everything to select a scheme
+#
+sub select_scheme {
+  my $s = shift;
+  # set the selected scheme to $s
+  $vars{'selected_scheme'} = $s;
+  # if we are working on scheme-custom simply return
+  return if ($s eq "scheme-custom");
+  # remove the selection of all collections
+  foreach my $entry (keys %vars) {
+    if ($entry=~/^(collection-.*)/) {
+      $vars{"$1"}=0;
+    }
+  }
+  # select the collections belonging to the scheme
+  my $scheme_tlpobj = $tlpdb->get_package($s);
+  if (defined ($scheme_tlpobj)) {
+    $vars{'n_collections_selected'}=0;
+    foreach my $dependent ($scheme_tlpobj->depends) {
+      if ($dependent=~/^(collection-.*)/) {
+        $vars{"$1"}=1;
+        ++$vars{'n_collections_selected'};
+      }
+    }
+  }
+  # we have first set all collection-* keys to zero and than
+  # set to 1 only those which are required by the scheme
+  # since now scheme asks for collection-wintools we set its vars value
+  # to 1 in case we are installing win32 binaries
+  if ($vars{"binary_win32"}) {
+    $vars{"collection-wintools"} = 1;
+    ++$vars{'n_collections_selected'};
+  }
+  # for good measure, update the deps
+  calc_depends();
+}
+
+sub update_numbers {
+  $vars{'n_collections_available'}=0;
+  $vars{'n_collections_selected'} = 0;
+  $vars{'n_systems_available'} = 0;
+  $vars{'n_systems_selected'} = 0;
+  foreach my $key (keys %vars) {
+    if ($key =~ /^binary/) {
+      ++$vars{'n_systems_available'};
+      ++$vars{'n_systems_selected'} if $vars{$key} == 1;
+    }
+    if ($key =~ /^collection-/) {
+      ++$vars{'n_collections_available'};
+      ++$vars{'n_collections_selected'} if $vars{$key} == 1;
+    }
+  }
+}
+
+sub flushlog {
+  my $fh;
+  if (open(LOG,">install-tl.log")) {
+    printf "Writing log file to current working directory.\n";
+    $fh = \*LOG;
+  } else {
+    $fh = \*STDERR;
+    printf "Not creating a log file but flushing messages to stderr.\n";
+  }
+
+  foreach my $l (@::LOGLINES) {
+    print $fh $l;
+  }
+}
+
+sub check_on_lang_collection_installed {
+  # we check that at least one lang collection is installed:
+  foreach my $c (@collections_lang) {
+    return 1 if $vars{"$c"};
+  }
+  if ($vars{"selected_scheme"} eq "scheme-context") {
+    # context
+    return 1;
+  }
+  return 0;
+}
+
+sub do_cleanup
+{
+  # now open the log file and write out the log lines
+  # try to open a log file
+  # the user could have given the -logfile option in which case all the
+  # stuff is already dumped to it and $::LOGFILE defined. So do not
+  # redefine it
+  if (!defined($::LOGFILE)) {
+    if (open(LOGF,">$vars{'TEXDIRW'}/install-tl.log")) {
+      $::LOGFILE = \*LOGF;
+      foreach my $line(@::LOGLINES) {
+        print $::LOGFILE "$line";
+      }
+    } else {
+      tlwarn("$0: Cannot create log file $vars{'TEXDIRW'}/install-tl.log: $!\n"
+             . "Not writing out log lines.\n");
+    }
+  }
+
+  # remove temporary files from TEXDIR/temp
+  if (($media eq "CD") or ($media eq "NET")) {
+    debug("Remove temporary downloaded containers...\n");
+    rmtree("$vars{'TEXDIRW'}/temp") if (-d "$vars{'TEXDIRW'}/temp");
+  }
+
+  # dump various things to the log file
+  #if (defined($::LOGFILE)) {
+  #  print $::LOGFILE "\nDump of vars:\n";
+  #  foreach my $key (keys %vars) {
+  #    print $::LOGFILE "$key $vars{$key}\n";
+  #  }
+  #  create_profile($::LOGFILE);
+  #}
+
+  # should not be needed any more
+  #dump_vars("$system_tmpdir/texlive.vars");
+
+  # write the profile out
+  if ($vars{'from_dvd'}) {
+    create_profile("$vars{'TEXDIRW'}/texlive.profile");
+    debug("Profile written to $vars{'TEXDIRW'}/texlive.profile\n");
+  } else {
+    create_profile("$vars{'TEXDIR'}/$InfraLocation/texlive.profile");
+    debug("Profile written to $vars{'TEXDIR'}/$InfraLocation/texlive.profile\n");
+  }
+  # Close log file if present
+  close($::LOGFILE) if (defined($::LOGFILE));
+    if (defined($::LOGFILENAME) and (-e $::LOGFILENAME)) {
+      print "Logfile: $::LOGFILENAME\n";
+    } elsif (-e "$vars{'TEXDIRW'}/install-tl.log") {
+      print "Logfile: $vars{'TEXDIRW'}/install-tl.log\n";
+    } else {
+      print "No logfile\n";
+  }
+}
+
+
+# portable option, invoked from tl-portable script.
+#
+sub do_portable {
+  $::opt_verbosity = -1;
+  $::_platform_ = platform();
+  $location = getenv('TEXDIR');
+  die "$0: Don't use --portable directly; use tl-portable instead\n"
+    unless $location;
+  $vars{'TEXDIR'} = $location;
+  if (not -d $vars{'TEXDIR'}.'/bin/'.$::_platform_) { # shouldn't happen
+    die "$0: Platform ".$::_platform_." not supported.";
+  }
+  # set_platforms_supported();
+  # set_texlive_default_dirs();
+  $vars{'TEXDIRW'} = getenv('TEXDIRW');
+  $vars{'TEXMFSYSVAR'} = getenv('TEXMFSYSVAR');
+  $vars{'TEXMFSYSCONFIG'} = getenv('TEXMFSYSCONFIG');
+  $vars{'TEXMFLOCAL'} = getenv('TEXMFLOCAL');
+  $vars{'TEXMFHOME'} = getenv('TEXMFHOME');
+  $vars{'TEXMFVAR'} = getenv('TEXMFVAR');
+  $vars{'TEXMFCONFIG'} = getenv('TEXMFCONFIG');
+  if (win32()) {
+    non_admin();
+    my $winpath = "$vars{'TEXDIR'}/bin/win32";
+  }
+
+  our $PORTABLE_PROMPT_DONE = 0;  # used in subroutine below
+  if (! -d "$vars{'TEXMFCONFIG'}" ) {
+    portable_prompt ();
+    mkdirhier "$vars{'TEXMFCONFIG'}";
+  }
+  if (! -d "$vars{'TEXMFSYSCONFIG'}" ) {
+    portable_prompt ();
+    mkdirhier "$vars{'TEXMFSYSCONFIG'}";
+  }
+  if (! -d "$vars{'TEXMFSYSVAR'}" ) {
+    portable_prompt ();
+    load_tlpdb();
+    $localtlpdb = $tlpdb;
+    $texlive_release = $tlpdb->config_release;
+    make_var_skeleton "$vars{'TEXMFSYSVAR'}";
+    # the usual option for pregenerating all formats doesn't apply
+    $vars{'option_fmt'} = 0;
+    do_postinst_stuff();
+  }
+
+  close($::LOGFILE) if defined($::LOGFILE);
+  print TeXLive::TLUtils::welcome;
+  exit 0;
+
+
+  # Give the user a chance to bail before changing anything.
+  # (Nested subroutine.)
+  sub portable_prompt
+  {
+    return if $PORTABLE_PROMPT_DONE;
+    $PORTABLE_PROMPT_DONE = 1;
+    print "About to generate some files, press Enter to continue:";
+    <STDIN>;
+  }
+}
+
+#
+# some helper fucntion
+sub select_collections {
+  my $varref = shift;
+  foreach (@_) {
+    $varref->{$_} = 1;
+  }
+}
+
+sub deselect_collections {
+  my $varref = shift;
+  foreach (@_) {
+    $varref->{$_} = 0;
+  }
+}
+
+
+__END__
+
+=head1 NAME
+
+install-tl - TeX Live cross-platform installer
+
+=head1 SYNOPSIS
+
+install-tl [OPTION]...
+
+install-tl.bat [OPTION]...
+
+=head1 DESCRIPTION
+
+The TeX Live installer works across all supported platforms and allows
+to install TeX Live from various media, including the network.  For
+information on initially downloading TeX Live, see
+L<http://tug.org/texlive/acquire.html>.
+
+The basic idea of TeX Live installation is to choose one of the
+top-level I<schemes>, each of which is defined as a different set of
+I<collections> and I<packages>, where a collection is a set of packages,
+and a package is what contains actual files.
+
+Within the installer, you can choose a scheme, and further customize the
+set of collections to install, but not the set of the packages.  To do
+that, remove the undesired packages after installation with C<tlmgr>
+(see reference below).  
+
+The default is C<scheme-full>, to install everything, and this is highly
+recommended unless your disk space is severely limited.
+
+=head1 REFERENCES
+
+Post-installation configuration, packages updates, and more, are handled
+through B<tlmgr>(1), the TeX Live Manager
+(L<http://tug.org/texlive/tlmgr.html>).
+
+The most up-to-date version of this documentation is on the Internet at
+L<http://tug.org/texlive/doc/install-tl.html>.
+
+For the full documentation of TeX Live, see
+L<http://tug.org/texlive/doc>.
+
+=head1 OPTIONS
+
+=over 4
+
+=item B<-gui> [[=]I<module>]
+
+If no I<module> is given starts the C<perltk> (see below) GUI installer.
+
+If I<module> is given loads the given installer module. Currently the
+following modules are supported:
+
+=over 8
+
+=item C<text>
+
+The text mode user interface which is the default on Unix systems, and
+can be forced with by giving C<text> as I<module>, or with the C<-no-gui>
+switch.
+
+=item C<wizard>
+
+The wizard mode user interface asking only a few questions before installing
+all of TeX Live. This is the default on Windows systems.
+
+=item C<perltk>
+
+The all-in-one GUI installer.
+It can also be selected by giving the C<-gui> option without any I<module>.
+
+=back
+
+The C<perltk> and C<wizard> modules, and thus also when calling with a
+simple C<-gui> (without I<module>) requires
+the Perl/Tk module (L<http://tug.org/texlive/distro.html#perltk>); if
+Perl/Tk is not available, installation continues in text mode.
+
+
+=item B<-no-gui>
+
+Use the text mode installer (default except on Windows).
+
+=item B<-lang> I<2-letter lang code>
+
+(only for GUI installer) If possible, start the installer translated into
+the language specified by the 2-letter (ISO 639-1) language code (with
+the exception for selecting simplified or traditional Chinese). 
+Currently supported
+languages: English (en, default), Czech (cs), German (de), French (fr), 
+Italian (it), Dutch (nl), Polish (pl), Russian (ru), Slovak (sk), 
+Slovenian (sl), Vietnamese (vi), simplified Chinese (zh-cn), and 
+traditional Chinese (zh-tw).
+
+=item B<-repository> I<url|path>
+
+Specify the package repository to be used as the source of the
+installation, either a local directory via C</path/to/directory> or a
+C<file:/> url, or a network location via a C<http://> or C<ftp://> url.
+(No other protocols are supported.)
+
+If the repository is local, the installation type (compressed or live) is
+automatically determined, by checking for the presence of a
+C<archive> directory relative to the root.  Compressed is
+preferred if both are available, since it is faster.  Here's an example
+of using a local directory:
+
+  -repository /local/TL/repository
+
+If the repository is on the network, trailing C</> characters and/or
+trailing C</tlpkg> and C</archive> components are ignored.  For example,
+you could choose a particular CTAN mirror with something like this:
+
+  -repository http://ctan.example.org/its/ctan/dir/systems/texlive/tlnet
+
+Of course a real hostname and its particular top-level CTAN path
+have to be specified.  The list of CTAN mirrors is available at
+L<http://ctan.org/mirrors>.
+
+The default is to pick a mirror automatically, using
+L<http://mirror.ctan.org/systems/texlive/tlnet>; the chosen mirror is
+used for the entire download.  You can use the special repository name
+C<ctan> as an abbreviation for this.  See L<http://ctan.org> for more
+about CTAN and its mirrors.
+
+After installation is complete, you can use that installation as the
+repository for another installation.  If you chose to install less than
+the full scheme containing all packages, the list of available schemes
+will be adjusted accordingly.
+
+For backward compatibility and convenience, C<--location> and C<--repo>
+are accepted as aliases for this option.
+
+=item B<-no-cls>
+
+(only for text mode installer) do not clear the screen when entering
+a new menu (for debugging purposes).
+
+=item B<-non-admin>
+
+For Windows only: configure for the current user, not for all users.
+
+=item B<-all-options>
+
+Normally options not regarding the current architecture are not shown.
+Giving this cmd line option allows to configure settings in the
+final tlpdb that do not have any immediate effect.
+
+=item B<-portable>
+
+Start the installer for portable use---but use the C<tl-portable>
+scripts instead of this option.  See below for details.
+
+=item B<-print-arch>
+
+Print the detected arch-os combination and exit.
+
+=item B<-force-arch> I<arch-os>
+
+Instead of auto-detecting the current platform use the one given on the
+cmd line. Make sure that there are binaries for this platform and they
+can actually be run.
+
+=item B<-profile> I<profile>
+
+Load the I<profile> file for repeated installations on different systems.
+A I<profile> contains the values of all necessary variable for the
+installation. After normal installation has finished a profile for that
+exact installation is written into DEST/tlpkg/texlive.profile. That file
+can be used to do the exact same installation on a different computer.
+
+You can also hand-craft such a profile starting from a generated one
+by changing some values. Normally a profile has to contain the value 1 for
+each collection that should be installed, even if the scheme is specified.
+That follows from the logic of the installer that you first select a scheme
+and then can change the actual collections being installed.
+
+There is one exception to this: If the profile contains a variable for
+B<selected_scheme> and I<no> collection variable is defined in the
+profile, then the collections which the specified scheme requires are
+installed.  Thus, a simple line C<selected_scheme scheme-medium>
+together with the definitions of the paths (C<TEXDIR>, C<TEXDIRW>,
+C<TEXMFHOME>, C<TEXMFLOCAL>, C<TEXMFSYSCONFIG>, C<TEXMFSYSVAR>) suffices
+to install the medium scheme with all default options.
+
+=item B<-scheme> I<scheme>
+
+Schemes are the highest level of package grouping in TeX Live; the
+default is to use the C<full> scheme, which includes everything.  This
+option overrides that default.  You can change the scheme again before
+the actual installation with the usual menu.  The I<scheme> argument may
+optionally have a prefix C<scheme->.  The list of supported scheme names
+depends on what your package repository provides; see the interactive
+menu list.
+
+=item B<-custom-bin> I<path>
+
+In case your architecture is not supported by TeX Live out of the box
+and you have built your own binaries for your system, this option allows
+to give the I<path> to a directory where ready made binaries for your
+system are present. The installation will continue as normally, but at
+the end all files from I<path> are copied over to C<bin/custom> in your
+installation folder and this directory will be added to the path for
+the postinstall actions.
+
+=item B<-debug-translation>
+
+This switch will make install-tl report any missing or probably
+untranslated messages in the GUI installers to STDERR.
+
+=item B<-q>
+
+Omit normal informational messages.
+
+=item B<-v>
+
+Include debugging messages; repeat for maximum debugging, as in C<-v
+-v>.  (Further repeats are accepted but ignored.)
+
+=item B<-logfile> I<file>
+
+Write both all messages (informational, debugging, warnings) to I<file>,
+in addition to standard output or standard error.
+
+If this option is not given, the installer will create a log file
+in the root of the writable installation tree,
+for example, C</usr/local/texlive/YYYY/install-tl.log> for the I<YYYY>
+release.
+
+=item B<--help>, B<-help>, B<-?>
+
+Display this help and exit.
+
+=item B<--version>, B<-version>
+
+Output version information and exit.
+If C<-v> has been given the revisions of the used modules are reported, too.
+
+=back
+
+As usual, all options can be specified with either C<-> or C<-->, and
+arguments can be separated from their options by either a space or C<=>.
+
+=head1 PORTABLE USE
+
+The TeX Live root directory contains a shell script C<tl-portable.sh>
+and a DOS batch file C<tl-portable.bat> which start up a new shell and
+command prompt in which TeX Live can be run with minimal impact on the
+host system. These files start up C<install-tl> with the
+C<-portable> option for some minimal preparation. Don't use this option
+directly; it makes very specific assumptions about its environment.
+
+=head1 AUTHORS AND COPYRIGHT
+
+This script and its documentation were written for the TeX Live
+distribution (L<http://tug.org/texlive>) and both are licensed under the
+GNU General Public License Version 2 or later.
+
+=cut
+
+### Local Variables:
+### perl-indent-level: 2
+### tab-width: 2
+### indent-tabs-mode: nil
+### End:
+# vim:set tabstop=2 expandtab: #