1 files changed, 60 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Debian/Variables.pm b/lib/Lintian/Check/Debian/Variables.pm
new file mode 100644
index 0000000..31fa9a4
--- /dev/null
+++ b/lib/Lintian/Check/Debian/Variables.pm
@@ -0,0 +1,60 @@
+# debian/variables -- lintian check script -*- perl -*-
+
+# Copyright (C) 2006 Russ Allbery <rra@debian.org>
+# Copyright (C) 2005 Rene van Bevern <rvb@pro-linux.de>
+# Copyright (C) 2019-2020 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.
+
+package Lintian::Check::Debian::Variables;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use Const::Fast;
+use List::SomeUtils qw(none);
+
+const my @WANTED_FILES => (qr{ (.+ [.])? install }sx, qr{ (.+ [.])? links }sx);
+
+const my @ILLEGAL_VARIABLES => qw(DEB_BUILD_MULTIARCH);
+
+use Moo;
+use namespace::clean;
+
+with 'Lintian::Check';
+
+sub visit_patched_files {
+    my ($self, $item) = @_;
+
+    return
+      unless $item->name =~ m{^ debian/ }sx;
+
+    return
+      if none { $item->name =~ m{ / $_ $}sx } @WANTED_FILES;
+
+    for my $variable (@ILLEGAL_VARIABLES) {
+
+        $self->pointed_hint('illegal-variable', $item->pointer, $variable)
+          if $item->decoded_utf8 =~ m{ \b $variable \b }msx;
+    }
+
+    return;
+}
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et