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# files/duplicates -- lintian check script -*- perl -*-
# Copyright (C) 2011 Niels Thykier
#
# 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::Files::Duplicates;
use v5.20;
use warnings;
use utf8;
use List::SomeUtils qw(any);
use Moo;
use namespace::clean;
with 'Lintian::Check';
has md5map => (is => 'rw', default => sub{ {} });
sub visit_installed_files {
my ($self, $item) = @_;
return
unless $item->is_regular_file;
# Ignore empty files; in some cases (e.g. python) a file is
# required even if it is empty and we are never looking at a
# substantial gain in such a case. Also see #632789
return
unless $item->size;
my $calculated = $item->md5sum;
return
unless defined $calculated;
return
unless $item->name =~ m{\A usr/share/doc/}xsm;
$self->md5map->{$calculated} //= [];
push(@{$self->md5map->{$calculated}}, $item);
return;
}
sub installable {
my ($self) = @_;
for my $md5 (keys %{$self->md5map}){
my @files = @{ $self->md5map->{$md5} };
next
if scalar @files < 2;
if (any { m/changelog/i} @files) {
$self->hint('duplicate-changelog-files', (sort @files));
} else {
$self->hint('duplicate-files', (sort @files));
}
}
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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