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# $Id$
# TeXLive::TLMedia.pm - module for accessing TeX Live Media
# Copyright 2008 Norbert Preining
#
# This file is licensed under the GNU General Public License version 2
# or any later version.
package TeXLive::TLMedia;
use TeXLive::TLConfig;
use TeXLive::TLPostActions;
use TeXLive::TLUtils qw(copy win32 dirname mkdirhier basename download_file
merge_into debug ddebug info tlwarn);
use TeXLive::TLPDB;
sub new
{
my ($class, $location) = @_;
my $media;
my $self = { };
# of no argument is given we assume NET and default URL
if (!defined($location)) {
return;
}
# no default by itself ...
# $location = "$TeXLiveURL" unless (defined($location));
# do media autodetection
if ($location =~ m,http://|ftp://,) {
$media = 'NET';
} else {
if ($location =~ m,file://*(.*)$,) {
$location = "/$1";
}
if (-d "$location/texmf/web2c") {
$media = 'DVD';
} elsif (-d "$location/$Archive") {
$media = 'CD';
} else {
# we cannot find the right type, return undefined, that should
# make people notice
return;
}
}
debug("Loading $location/$InfraLocation/$DatabaseName ...\n");
my $tlpdb = TeXLive::TLPDB->new(root => "$location");
return(undef) unless defined($tlpdb);
my (@all_c, @std_c, @lang_c, @lang_doc_c);
my (@schemes);
my %revs;
foreach my $pkg ($tlpdb->list_packages) {
my $tlpobj = $tlpdb->{'tlps'}{$pkg};
$revs{$tlpobj->name} = $tlpobj->revision;
if ($tlpobj->category eq "Collection") {
push @all_c, $pkg;
if ($pkg =~ /collection-lang/) {
push @lang_c, $pkg;
} elsif ($pkg =~ /documentation/) {
if ($pkg =~ /documentation-base/) {
push @std_c, $pkg;
} else {
push @lang_doc_c, $pkg;
}
} else {
push @std_c, $pkg;
}
} elsif ($tlpobj->category eq "Scheme") {
push @schemes, $pkg;
}
}
my (@systems);
@systems = $tlpdb->available_architectures;
$self->{'media'} = $media;
$self->{'location'} = $location;
$self->{'tlpdb'} = $tlpdb;
$self->{'release'} = $tlpdb->config_release;
@{ $self->{'all_collections'} } = @all_c;
@{ $self->{'std_collections'} } = @std_c;
@{ $self->{'lang_collections'} } = @lang_c;
@{ $self->{'lang_doc_collections'} } = @lang_doc_c;
@{ $self->{'schemes'} } = @schemes;
@{ $self->{'systems'} } = @systems;
%{ $self->{'pkgrevs'} } = %revs;
bless $self, $class;
return $self;
}
# returns a scalar (0) on error
# returns a reference to a hash with actions on success
sub install_package {
my ($self, $pkg, $totlpdb, $nopostinstall, $fallbackmedia) = @_;
my $fromtlpdb = $self->tlpdb;
my $ret;
die("TLMedia not initialized, cannot find tlpdb!") unless (defined($fromtlpdb));
my $tlpobj = $fromtlpdb->get_package($pkg);
if (!defined($tlpobj)) {
if (defined($fallbackmedia)) {
if ($ret = $fallbackmedia->install_package($pkg,$totlpdb, $nopostinstall)) {
debug("installed $pkg from fallback\n");
return $ret;
} else {
tlwarn("$0: Cannot find package $pkg (in fallback, either)\n");
return 0;
}
} else {
tlwarn("$0: Cannot find package $pkg\n");
return 0;
}
} else {
my $container_src_split = $fromtlpdb->config_src_container;
my $container_doc_split = $fromtlpdb->config_doc_container;
# get options about src/doc splitting from $totlpdb
my $opt_src = $totlpdb->option_install_srcfiles;
my $opt_doc = $totlpdb->option_install_docfiles;
my $real_opt_doc = $opt_doc;
if ($tlpobj->category =~ m/documentation/i) {
# we do install documenation files for category Documentation
# even if opt_doc is false
$real_opt_doc = 1;
}
my $container;
my @installfiles;
my $location = $self->location;
foreach ($tlpobj->runfiles) {
# s!^!$location/!;
push @installfiles, $_;
}
foreach ($tlpobj->allbinfiles) {
# s!^!$location/!;
push @installfiles, $_;
}
if ($opt_src) {
foreach ($tlpobj->srcfiles) {
# s!^!$location/!;
push @installfiles, $_;
}
}
if ($real_opt_doc) {
foreach ($tlpobj->docfiles) {
# s!^!$location/!;
push @installfiles, $_;
}
}
my $media = $self->media;
if ($media eq 'DVD') {
$container = \@installfiles;
} elsif ($media eq 'CD') {
if (-r "$location/$Archive/$pkg.zip") {
$container = "$location/$Archive/$pkg.zip";
} elsif (-r "$location/$Archive/$pkg.tar.lzma") {
$container = "$location/$Archive/$pkg.tar.lzma";
} else {
tlwarn("Cannot find a package $pkg (.zip or .lzma) in $location/$Archive\n");
next;
}
} elsif (&media eq 'NET') {
$container = "$location/$Archive/$pkg.$DefaultContainerExtension";
}
$self->_install_package($container,\@installfiles,$totlpdb) || return(0);
# if we are installing from CD or NET we have to fetch the respective
# source and doc packages $pkg.source and $pkg.doc and install them, too
if (($media eq 'NET') || ($media eq 'CD')) {
# we install split containers under the following conditions:
# - the container were split generated
# - src/doc files should be installed
# (- the package is not already a split one (like .i386-linux))
# the above test has been removed because it would mean that
# texlive.infra.doc.tar.lzma
# will never be installed, and we do already check that there
# are at all src/doc files, which in split packages of the form
# foo.ARCH are not present. And if they are present, than that is fine,
# too (bin-foobar.win32.doc.tar.lzma)
# - there are actually src/doc files present
if ($container_src_split && $opt_src && $tlpobj->srcfiles) {
my $srccontainer = $container;
$srccontainer =~ s/(\.tar\.lzma|\.zip)$/.source$1/;
$self->_install_package($srccontainer,\@installfiles,$totlpdb) || return(0);
}
if ($container_doc_split && $real_opt_doc && $tlpobj->docfiles) {
my $doccontainer = $container;
$doccontainer =~ s/(\.tar\.lzma|\.zip)$/.doc$1/;
$self->_install_package($doccontainer,\@installfiles,$totlpdb) || return(0);
}
}
# we don't want to have wrong information in the tlpdb, so remove the
# src/doc files if they are not installed ...
if (!$opt_src) {
$tlpobj->clear_srcfiles;
}
if (!$real_opt_doc) {
$tlpobj->clear_docfiles;
}
# we have to write out the tlpobj file since it is contained in the
# archives (.tar.lzma) but at DVD install time we don't have them
my $tlpod = $totlpdb->root . "/tlpkg/tlpobj";
mkdirhier( $tlpod );
open(TMP,">$tlpod/".$tlpobj->name.".tlpobj") or
die("Cannot open tlpobj file for ".$tlpobj->name);
$tlpobj->writeout(\*TMP);
close(TMP);
$totlpdb->add_tlpobj($tlpobj);
$totlpdb->save;
# compute the return value
my %ret;
merge_into(\%ret, $tlpobj->make_return_hash_from_executes("enable"));
if (!$nopostinstall) {
# do the postinstallation actions
if (defined($PostInstall{$pkg})) {
info("running post install action for $pkg\n");
&{$PostInstall{$pkg}}($totlpdb->root);
}
}
return \%ret;
}
}
#
# _install_package
# actually does the installation work
# returns 1 on success and 0 on error
#
sub _install_package {
my ($self, $what, $filelistref, $totlpdb) = @_;
my $media = $self->media;
my $target = $totlpdb->root;
my @filelist = @$filelistref;
# we assume that $::progs has been set up!
my $wget = $::progs{'wget'};
my $lzmadec = $::progs{'lzmadec'};
if (!defined($wget) || !defined($lzmadec)) {
tlwarn("_install_package: programs not set up properly, strange.\n");
return(0);
}
if (ref $what) {
# we are getting a ref to a list of files, so install from DVD
my $location = $self->location;
foreach my $file (@$what) {
# @what is taken, not @filelist!
# is this still needed?
my $dn=dirname($file);
mkdirhier("$target/$dn");
copy "$location/$file", "$target/$dn";
}
# we always assume that copy will work
return(1);
} elsif ($what =~ m,\.tar(\.lzma)?$,) {
my $type = defined($1) ? "lzma" : "tar";
# this is the case when we install from CD or the NET, or a backup
#
# in all other cases we create temp files .tar.lzma (or use the present
# one), lzmadec them, and then call tar
my $fn = basename($what);
mkdirhier("$target/temp");
my $tarfile;
my $remove_tarfile = 1;
if ($type eq "lzma") {
my $lzmafile = "$target/temp/$fn";
$tarfile = "$target/temp/$fn"; $tarfile =~ s/\.lzma$//;
my $lzmafile_quote = $lzmafile;
my $tarfile_quote = $tarfile;
my $target_quote = $target;
if (win32()) {
$lzmafile =~ s!/!\\!g;
$lzmafile_quote = "\"$lzmafile\"";
$tarfile =~ s!/!\\!g;
$tarfile_quote = "\"$tarfile\"";
$target =~ s!/!\\!g;
$target_quote = "\"$target\"";
}
if ($what =~ m,http://|ftp://,) {
# we are installing from the NET
# download the file and put it into temp
if (!download_file($what, $lzmafile) || (! -r $lzmafile)) {
tlwarn("Downloading \n");
tlwarn(" $what\n");
tlwarn("did not succeed, please retry!\n");
unlink($tarfile, $lzmafile);
return(0);
}
} else {
# we are installing from CD
# copy it to temp
copy($what, "$target/temp");
}
debug("un-lzmaing $lzmafile to $tarfile\n");
system("$lzmadec < $lzmafile_quote > $tarfile_quote");
if (! -f $tarfile) {
tlwarn("_install_package: Unpacking $lzmafile failed, please retry.\n");
unlink($tarfile, $lzmafile);
return(0);
}
unlink($lzmafile);
} else {
$tarfile = "$target/temp/$fn";
if ($what =~ m,http://|ftp://,) {
if (!download_file($what, $tarfile) || (! -r $tarfile)) {
tlwarn("Downloading \n");
tlwarn(" $what\n");
tlwarn("failed, please retry.\n");
unlink($tarfile);
return(0);
}
} else {
$tarfile = $what;
$remove_tarfile = 0;
}
}
return TeXLive::TLUtils::untar($tarfile, $target, $remove_tarfile);
} else {
tlwarn("_install_package: Don't know how to install $what\n");
return(0);
}
}
# member access functions
#
sub media { my $self = shift ; return $self->{'media'}; }
sub location { my $self = shift ; return $self->{'location'}; }
sub tlpdb { my $self = shift ; return $self->{'tlpdb'}; }
sub release { my $self = shift ; return $self->{'release'}; }
sub all_collections { my $self = shift; return @{ $self->{'all_collections'} }; }
sub std_collections { my $self = shift; return @{ $self->{'std_collections'} }; }
sub lang_collections { my $self = shift; return @{ $self->{'lang_collections'} }; }
sub lang_doc_collections { my $self = shift; return @{ $self->{'lang_doc_collections'} }; }
sub schemes { my $self = shift; return @{ $self->{'schemes'} }; }
sub systems { my $self = shift; return @{ $self->{'systems'} }; }
1;
__END__
=head1 NAME
C<TeXLive::TLMedia> -- TeX Live Media module
=head1 SYNOPSIS
use TeXLive::TLMedia;
my $tlnet = TeXLive::TLMedia->new('NET');
my $tlneo = TeXLive::TLMedia->new('NET','http://www.ctan.org/mirror/tl/');
my $tlcd = TeXLive::TLMedia->new('CD','/mnt/tl-cd/');
my $tldvd = TeXLive::TLMedia->new('DVD','/mnt/tl-dvd/');
=head1 DESCRIPTION
missing
=head1 MEMBER ACCESS FUNCTIONS
scalars: media, location, tlpdb, release
lists: all_collections, std_collections, lang_collections, lang_doc_collections,
schemes, systems
=back
=head1 SEE ALSO
The modules L<TeXLive::TLConfig>, L<TeXLive::TLUtils>, L<TeXLive::TLPOBJ>,
L<TeXLive::TLPDB>, L<TeXLive::TLTREE>.
=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: #
|