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# md5sums -- lintian check script -*- perl -*-
# Copyright (C) 1998 Christian Schwarz and Richard Braakman
# Copyright (C) 2020 Felix Lechner
# Copyright (C) 2018, 2020 Chris Lamb <lamby@debian.org>
#
# 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, you can find it on the World Wide
# Web at https://www.gnu.org/copyleft/gpl.html, or write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.
package Lintian::Check::Md5sums;
use v5.20;
use warnings;
use utf8;
use List::Compare;
use Path::Tiny;
use Lintian::Util qw(read_md5sums drop_relative_prefix);
use Moo;
use namespace::clean;
with 'Lintian::Check';
has only_conffiles => (is => 'rw', default => 1);
sub visit_installed_files {
my ($self, $item) = @_;
# check if package contains non-conffiles
# debhelper doesn't create entries in md5sums
# for conffiles since this information would
# be redundant
# Skip non-files, they will not appear in the md5sums file
return
unless $item->is_regular_file;
$self->only_conffiles(0)
unless $self->processable->declared_conffiles->is_known($item->name);
return;
}
sub binary {
my ($self) = @_;
my $control = $self->processable->control->lookup('md5sums');
unless (defined $control) {
# ignore if package contains no files
return
unless @{$self->processable->installed->sorted_list};
$self->hint('no-md5sums-control-file')
unless $self->only_conffiles;
return;
}
# The md5sums file should not be a symlink. If it is, the best
# we can do is to leave it alone.
return
if $control->is_symlink;
return
unless $control->is_open_ok;
# Is it empty? Then skip it. Tag will be issued by control-files
return
if $control->size == 0;
my $text = $control->bytes;
my ($md5sums, $errors) = read_md5sums($text);
$self->pointed_hint('malformed-md5sums-control-file',$control->pointer, $_)
for @{$errors};
my %noprefix
= map { drop_relative_prefix($_) => $md5sums->{$_} } keys %{$md5sums};
my @listed = keys %noprefix;
my @found
= grep { $_->is_file} @{$self->processable->installed->sorted_list};
my $lc = List::Compare->new(\@listed, \@found);
# find files that should exist but do not
$self->pointed_hint('md5sums-lists-nonexistent-file',$control->pointer, $_)
for $lc->get_Lonly;
# find files that should be listed but are not
for my $name ($lc->get_Ronly) {
$self->pointed_hint('file-missing-in-md5sums', $control->pointer,$name)
unless $self->processable->declared_conffiles->is_known($name)
|| $name =~ m{^var/lib/[ai]spell/.};
}
# checksum should match for common files
for my $name ($lc->get_intersection) {
my $item = $self->processable->installed->lookup($name);
$self->pointed_hint('md5sum-mismatch', $control->pointer, $name)
unless $item->md5sum eq $noprefix{$name};
}
return;
}
1;
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
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