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#!/usr/bin/env perl
# Copyright 2012 Norbert Preining
# This file is licensed under the GNU General Public License version 2
# or any later version.
#
# Prune (remove) platforms from a tlnet distribution tree
my $vc_id;
my $mydir;
BEGIN {
$vc_id = '$Id$';
$^W = 1;
($mydir = $0) =~ s,/[^/]*$,,;
unshift (@INC, "$mydir/..");
}
use strict;
use TeXLive::TLConfig;
use TeXLive::TLPOBJ;
use TeXLive::TLPDB;
use TeXLive::TLUtils;
use Getopt::Long;
use Pod::Usage;
use File::Path;
my $opt_version = 0;
my $opt_help = 0;
my $opt_dry = 0;
TeXLive::TLUtils::process_logging_options();
GetOptions(
"dry-run|n" => \$opt_dry,
"version" => \$opt_version,
"help|?" => \$opt_help) or pod2usage(1);
pod2usage("-exitstatus" => 0, "-verbose" => 2) if $opt_help;
if ($opt_version) { print "$vc_id\n"; exit 0; }
exit (&main());
sub main
{
# prune db in the same hierarchy from which we are being run.
chomp(my $Master = `cd $mydir/../.. && pwd`);
# necessary for TLUtils->platform
$::installerdir = $Master;
my $tlpdb = TeXLive::TLPDB->new("root" => $Master);
die "cannot find tlpdb in $Master" unless defined($tlpdb);
my $format = $tlpdb->config_container_format;
my $type = "xz";
if ($format ne "xz") {
tlwarn("$0: unknown container format $format in 00texlive.config; ",
"ignoring and continuing with $type");
}
# check that all archs given on the command line are actual archs,
# otherwise bail out for security
my @all_archs = $tlpdb->available_architectures;
for my $a (@ARGV) {
if (!TeXLive::TLUtils::member($a, @all_archs)) {
print "Platform $a not installed, cannot prune, exiting\n";
exit 1;
}
}
my $containerdir = "$Master/$TeXLive::TLConfig::Archive";
# loop over packages and remove their binary component
for my $pkg ($tlpdb->list_packages) {
# by definition, any 00texlive... package does not need containers.
next if $pkg =~ /00texlive/;
my $tlp = $tlpdb->get_package($pkg);
if (!$tlp) {
# that is a package foobar.$a that has already been remove but
# is still in the list above, so ignore that
next;
}
foreach my $dep ($tlp->depends) {
if ($dep =~ m/^(.*)\.ARCH$/) {
foreach my $a (@ARGV) {
if ($tlpdb->get_package("$pkg.$a")) {
# remove entry in the tlpdb
print "removing $pkg.$a from tlpdb ... ";
$tlpdb->remove_tlpobj("$pkg.$a") unless $opt_dry;
print "done\n";
# remove the container
if (-r "$containerdir/$pkg.$a.tar.xz") {
print "removing $containerdir/$pkg.$a.tar.xz ... ";
`rm $containerdir/$pkg.$a.tar.xz` unless $opt_dry;
print "done\n";
}
}
}
}
}
}
my @newarchs;
for my $a (@all_archs) {
push @newarchs, $a if !TeXLive::TLUtils::member($a, @ARGV);
}
$tlpdb->setting("available_architectures",@newarchs);
$tlpdb->save unless $opt_dry;
return 0;
}
__END__
=head1 NAME
tl-prune-platforms - remove platforms from a tlnet hierarchy
=head1 SYNOPSIS
tl-prune-platforms [I<option>] [I<platform>] ...
=head1 OPTIONS
=over 4
=item B<-help>
Print this documentation and exit.
=back
The standard options B<-q>, B<-v>, and B<-logfile>=I<file> are also
accepted; see the C<process_logging_options> function in
L<TeXLive::TLUtils> for details.
The format of the containers and the splitting of source and
documentation files are controlled by the TLPDB options in the
pseudo-package C<00texlive.config>. See L<TeXLive::TLPDB>.
=head1 DESCRIPTION
This program removes all traces of all platforms given as arguments,
that is: remove the binfiles entries in the tlpdb, and remove the
containers.
It is used during DVD production to exclude certain
platforms, and is run from the L<tl-update-image> script.
=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: #
|
