1 files changed, 136 insertions, 0 deletions
diff --git a/lib/Lintian/Processable/Source/Format.pm b/lib/Lintian/Processable/Source/Format.pm
new file mode 100644
index 0000000..551f93e
--- /dev/null
+++ b/lib/Lintian/Processable/Source/Format.pm
@@ -0,0 +1,136 @@
+# -*- perl -*-
+# Lintian::Processable::Source::Format -- interface to source package data collection
+
+# Copyright (C) 2008 Russ Allbery
+# Copyright (C) 2009 Raphael Geissert
+# Copyright (C) 2020 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, see <http://www.gnu.org/licenses/>.
+
+package Lintian::Processable::Source::Format;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use Const::Fast;
+use Path::Tiny;
+
+use Moo::Role;
+use namespace::clean;
+
+const my $UNDERSCORE => q{_};
+
+=head1 NAME
+
+Lintian::Processable::Source::Format - Lintian interface to source format
+
+=head1 SYNOPSIS
+
+    my $collect = Lintian::Processable::Source::Format->new;
+
+=head1 DESCRIPTION
+
+Lintian::Processable::Source::Format provides an interface to source format
+information.
+
+=head1 INSTANCE METHODS
+
+=over 4
+
+=item source_format
+
+=cut
+
+has source_format => (
+    is => 'rw',
+    lazy => 1,
+    default => sub {
+        my ($self) = @_;
+
+        my $format = $self->fields->value('Format') || '1.0';
+
+        return $format;
+    }
+);
+
+=item native
+
+Returns true if the source package is native and false otherwise.
+This is generally determined from the source format, though in the 1.0
+case the nativeness is determined by looking for the diff.gz (using
+the name of the source package and its version).
+
+If the source format is 1.0 and the version number is absent, this
+will return false (as native packages are a lot rarer than non-native
+ones).
+
+Note if the source format is missing, it is assumed to be a 1.0
+package.
+
+=cut
+
+has native => (
+    is => 'rw',
+    lazy => 1,
+    default => sub {
+        my ($self) = @_;
+
+        my $format = $self->source_format;
+
+        return 0
+          if $format =~ /^\s*2\.0\s*$/;
+
+        return 0
+          if $format =~ /^\s*3\.0\s+\(quilt|git\)\s*$/;
+
+        return 1
+          if $format =~ /^\s*3\.0\s+\(native\)\s*$/;
+
+        my $version = $self->fields->value('Version');
+        return 0
+          unless length $version;
+
+        # strip epoch
+        $version =~ s/^\d+://;
+
+        my $diffname = $self->name . $UNDERSCORE . "$version.diff.gz";
+
+        return 0
+          if exists $self->files->{$diffname};
+
+        return 1;
+    }
+);
+
+=back
+
+=head1 AUTHOR
+
+Originally written by Russ Allbery <rra@debian.org> for Lintian.
+Amended by Felix Lechner <felix.lechner@lease-up.com> for Lintian.
+
+=head1 SEE ALSO
+
+lintian(1), Lintian::Relation(3)
+
+=cut
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et