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# -*- perl -*- Lintian::Processable::Source::Orig
#
# Copyright (C) 2020 Felix Lechner
#
# 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 of the License, 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, see <http://www.gnu.org/licenses/>.
package Lintian::Processable::Source::Orig;
use v5.20;
use warnings;
use utf8;
use Const::Fast;
use List::SomeUtils qw(uniq);
use List::UtilsBy qw(sort_by);
use Path::Tiny;
use Unicode::UTF8 qw(encode_utf8);
use Lintian::Index;
const my $EMPTY => q{};
const my $SPACE => q{ };
const my $SLASH => q{/};
use Moo::Role;
use namespace::clean;
=head1 NAME
Lintian::Processable::Source::Orig - access to collected data about the upstream (orig) sources
=head1 SYNOPSIS
use Lintian::Processable;
=head1 DESCRIPTION
Lintian::Processable::Source::Orig provides an interface to collected data about the upstream (orig) sources.
=head1 INSTANCE METHODS
=over 4
=item orig
Returns the index for orig.tar.gz.
=cut
my %DECOMPRESS_COMMAND = (
'gz' => 'gzip --decompress --stdout',
'bz2' => 'bzip2 --decompress --stdout',
'xz' => 'xz --decompress --stdout',
);
has orig => (
is => 'rw',
lazy => 1,
default => sub {
my ($self) = @_;
my $index = Lintian::Index->new;
my $archive = $self->basename;
$index->identifier("$archive (orig)");
$index->basedir($self->basedir . $SLASH . 'orig');
return $index
if $self->native;
# source packages can be unpacked anywhere; no anchored roots
$index->anchored(0);
my %components = %{$self->components};
# keep sort order; root is missing below otherwise
my @tarballs = sort_by { $components{$_} } keys %components;
for my $tarball (@tarballs) {
my $component = $components{$tarball};
# so far, all archives with components had an extra level
my $component_dir = $index->basedir;
$component_dir .= $SLASH . $component
if length $component;
my $subindex = Lintian::Index->new;
$subindex->basedir($component_dir);
# source packages can be unpacked anywhere; no anchored roots
$index->anchored(0);
my ($extension) = ($tarball =~ /\.([^.]+)$/);
die encode_utf8("Source component $tarball has no file exension\n")
unless length $extension;
my $decompress = $DECOMPRESS_COMMAND{lc $extension};
die encode_utf8("Don't know how to decompress $tarball")
unless $decompress;
my @command
= (split($SPACE, $decompress),
$self->basedir . $SLASH . $tarball);
my $errors = $subindex->create_from_piped_tar(\@command);
push(@{$index->unpack_messages}, "$tarball . $_")
for grep { !/^tar: Ignoring / } uniq split(/\n/, $errors);
# treat hard links like regular files
my @hardlinks = grep { $_->is_hardlink } @{$subindex->sorted_list};
for my $item (@hardlinks) {
my $target = $subindex->lookup($item->link);
$item->unpacked_path($target->unpacked_path);
$item->size($target->size);
$item->link($EMPTY);
# turn into a regular file
my $perm = $item->perm;
$perm =~ s/^-/h/;
$item->perm($perm);
$item->path_info(
($item->path_info & ~Lintian::Index::Item::TYPE_HARDLINK)
| Lintian::Index::Item::TYPE_FILE);
}
my @prefixes = @{$subindex->sorted_list};
# keep top level prefixes; no trailing slashes
s{^([^/]+).*$}{$1}s for @prefixes;
# squash identical values; ignore root entry ('')
my @unique = grep { length } uniq @prefixes;
# check for single common value
if (@unique == 1) {
# no trailing slash for directories
my $common = $unique[0];
# proceed if no file with that name (lacks slash)
my $conflict = $subindex->lookup($common);
unless (defined $conflict) {
if ($common ne $component || length $component) {
# shortens paths; keeps same base directory
my $sub_errors = $subindex->drop_common_prefix;
push(@{$index->unpack_errors}, "$tarball . $_")
for uniq split(/\n/, $sub_errors);
}
}
}
# lowers base directory to match index being merged into
$subindex->capture_common_prefix
if length $component;
$index->merge_in($subindex);
}
return $index;
}
);
=back
=head1 AUTHOR
Originally written by Felix Lechner <felix.lechner@lease-up.com> for
Lintian.
=head1 SEE ALSO
lintian(1)
=cut
1;
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
|
