1 files changed, 80 insertions, 0 deletions
diff --git a/lib/Lintian/Check/BuildSystems/Debhelper/MaintainerScript/Token.pm b/lib/Lintian/Check/BuildSystems/Debhelper/MaintainerScript/Token.pm
new file mode 100644
index 0000000..7d54b79
--- /dev/null
+++ b/lib/Lintian/Check/BuildSystems/Debhelper/MaintainerScript/Token.pm
@@ -0,0 +1,80 @@
+# build-systems/debhelper/maintainer-script/token -- lintian check script -*- perl -*-
+#
+# Copyright (C) 1998 Richard Braakman
+# Copyright (C) 2002 Josip Rodin
+# Copyright (C) 2016-2019 Chris Lamb <lamby@debian.org>
+# Copyright (C) 2021 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, 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::BuildSystems::Debhelper::MaintainerScript::Token;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use Unicode::UTF8 qw(encode_utf8);
+
+use Moo;
+use namespace::clean;
+
+with 'Lintian::Check';
+
+sub visit_control_files {
+    my ($self, $item) = @_;
+
+    return
+      unless $item->is_maintainer_script;
+
+    return
+      unless length $item->interpreter;
+
+    return
+      unless $item->is_open_ok;
+
+    open(my $fd, '<', $item->unpacked_path)
+      or die encode_utf8('Cannot open ' . $item->unpacked_path);
+
+    my $position = 1;
+    while (my $line = <$fd>) {
+
+        next
+          unless $line =~ m{( [#] DEBHELPER [#] )}x;
+
+        my $token = $1;
+
+        my $pointer = $item->pointer($position);
+
+        $self->pointed_hint('maintainer-script-has-unexpanded-debhelper-token',
+            $pointer, $token);
+
+    } continue {
+        ++$position;
+    }
+
+    close $fd;
+
+    return;
+}
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et