1 files changed, 99 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Fields/Source.pm b/lib/Lintian/Check/Fields/Source.pm
new file mode 100644
index 0000000..455bba3
--- /dev/null
+++ b/lib/Lintian/Check/Fields/Source.pm
@@ -0,0 +1,99 @@
+# fields/source -- lintian check script (rewrite) -*- perl -*-
+#
+# Copyright (C) 2004 Marc Brockschmidt
+#
+# Parts of the code were taken from the old check script, which
+# was Copyright (C) 1998 Richard Braakman (also licensed under the
+# GPL 2 or higher)
+#
+# 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::Fields::Source;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use Const::Fast;
+use Path::Tiny;
+use Unicode::UTF8 qw(encode_utf8);
+
+use Lintian::Util qw($PKGNAME_REGEX);
+
+use Moo;
+use namespace::clean;
+
+with 'Lintian::Check';
+
+const my $UNDERSCORE => q{_};
+
+sub source {
+    my ($self) = @_;
+
+    my $fields = $self->processable->fields;
+
+    # required in source packages, but dpkg-source already refuses to unpack
+    # without this field (and fields depends on unpacked)
+    return
+      unless $fields->declares('Source');
+
+    my $source = $fields->unfolded_value('Source');
+
+    my $basename = path($self->processable->path)->basename;
+    my ($stem) = split($UNDERSCORE, $basename, 2);
+
+    die encode_utf8(
+        "Source field does not match package name $source != $stem")
+      if $source ne $stem;
+
+    $self->hint('source-field-malformed', $source)
+      if $source !~ /^[a-z0-9][-+\.a-z0-9]+\z/;
+
+    return;
+}
+
+sub always {
+    my ($self) = @_;
+
+    # treated separately above
+    return
+      if $self->processable->type eq 'source';
+
+    my $fields = $self->processable->fields;
+
+    # optional in binary packages
+    return
+      unless $fields->declares('Source');
+
+    my $source = $fields->unfolded_value('Source');
+
+    $self->hint('source-field-malformed', $source)
+      unless $source =~ m{^ $PKGNAME_REGEX
+                         \s*
+                         # Optional Version e.g. (1.0)
+                         (?:\((?:\d+:)?(?:[-\.+:a-zA-Z0-9~]+?)(?:-[\.+a-zA-Z0-9~]+)?\))?\s*$}x;
+
+    return;
+}
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et