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diff --git a/lib/Lintian/Check/Files/Date.pm b/lib/Lintian/Check/Files/Date.pm
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+# files/date -- lintian check script -*- perl -*-
+
+# Copyright (C) 1998 Christian Schwarz and Richard Braakman
+#
+# 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::Date;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use Const::Fast;
+
+use Moo;
+use namespace::clean;
+
+with 'Lintian::Check';
+
+# value from dak CVS: Dinstall::PastCutOffYear
+const my $DINSTALL_CUTOFF_YEAR => 1975;
+
+has ALLOWED_ANCIENT_FILES => (
+ is => 'rw',
+ lazy => 1,
+ default => sub {
+ my ($self) = @_;
+
+ return $self->data->load('files/allowed-ancient-files');
+ }
+);
+
+sub visit_installed_files {
+ my ($self, $item) = @_;
+
+ my ($year) = ($item->date =~ /^(\d{4})/);
+
+ $self->pointed_hint('package-contains-ancient-file',
+ $item->pointer, $item->date)
+ if $year <= $DINSTALL_CUTOFF_YEAR
+ && !$self->ALLOWED_ANCIENT_FILES->matches_any($item->name);
+
+ return;
+}
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et