1 files changed, 191 insertions, 0 deletions
diff --git a/scripts/Dpkg/Source/Format.pm b/scripts/Dpkg/Source/Format.pm
new file mode 100644
index 0000000..55172a2
--- /dev/null
+++ b/scripts/Dpkg/Source/Format.pm
@@ -0,0 +1,191 @@
+# Copyright © 2008-2011 Raphaël Hertzog <hertzog@debian.org>
+# Copyright © 2008-2018 Guillem Jover <guillem@debian.org>
+#
+# 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 <https://www.gnu.org/licenses/>.
+
+package Dpkg::Source::Format;
+
+=encoding utf8
+
+=head1 NAME
+
+Dpkg::Source::Format - manipulate debian/source/format files
+
+=head1 DESCRIPTION
+
+This module provides an object that can manipulate Debian source
+package F<debian/source/format> files.
+
+=cut
+
+use strict;
+use warnings;
+
+our $VERSION = '1.00';
+
+use Dpkg::Gettext;
+use Dpkg::ErrorHandling;
+
+use parent qw(Dpkg::Interface::Storable);
+
+=head1 METHODS
+
+=over 4
+
+=item $f = Dpkg::Source::Format->new(%opts)
+
+Creates a new object corresponding to a source package's
+F<debian/source/format> file. When the key B<filename> is set, it will
+be used to parse and set the format. Otherwise if the B<format> key is
+set it will be validated and used to set the format.
+
+=cut
+
+sub new {
+    my ($this, %opts) = @_;
+    my $class = ref($this) || $this;
+    my $self = {
+        filename => undef,
+        major => undef,
+        minor => undef,
+        variant => undef,
+    };
+    bless $self, $class;
+
+    if (exists $opts{filename}) {
+        $self->load($opts{filename}, compression => 0);
+    } elsif ($opts{format}) {
+        $self->set($opts{format});
+    }
+    return $self;
+}
+
+=item $f->set_from_parts($major[, $minor[, $variant]])
+
+Sets the source format from its parts. The $major part is mandatory.
+The $minor and $variant parts are optional.
+
+B<Notice>: This function performs no validation.
+
+=cut
+
+sub set_from_parts {
+    my ($self, $major, $minor, $variant) = @_;
+
+    $self->{major} = $major;
+    $self->{minor} = $minor // 0;
+    $self->{variant} = $variant;
+}
+
+=item ($major, $minor, $variant) = $f->set($format)
+
+Sets (and validates) the source $format specified. Will return the parsed
+format parts as a list, the optional $minor and $variant parts might be
+undef.
+
+=cut
+
+sub set {
+    my ($self, $format) = @_;
+
+    if ($format =~ /^(\d+)(?:\.(\d+))?(?:\s+\(([a-z0-9]+)\))?$/) {
+        my ($major, $minor, $variant) = ($1, $2, $3);
+
+        $self->set_from_parts($major, $minor, $variant);
+
+        return ($major, $minor, $variant);
+    } else {
+        error(g_("source package format '%s' is invalid"), $format);
+    }
+}
+
+=item ($major, $minor, $variant) = $f->get()
+
+=item $format = $f->get()
+
+Gets the source format, either as properly formatted scalar, or as a list
+of its parts, where the optional $minor and $variant parts might be undef.
+
+=cut
+
+sub get {
+    my $self = shift;
+
+    if (wantarray) {
+        return ($self->{major}, $self->{minor}, $self->{variant});
+    } else {
+        my $format = "$self->{major}.$self->{minor}";
+        $format .= " ($self->{variant})" if defined $self->{variant};
+
+        return $format;
+    }
+}
+
+=item $count = $f->parse($fh, $desc)
+
+Parse the source format string from $fh, with filehandle description $desc.
+
+=cut
+
+sub parse {
+    my ($self, $fh, $desc) = @_;
+
+    my $format = <$fh>;
+    chomp $format if defined $format;
+    error(g_('%s is empty'), $desc)
+        unless defined $format and length $format;
+
+    $self->set($format);
+
+    return 1;
+}
+
+=item $count = $f->load($filename)
+
+Parse $filename contents for a source package format string.
+
+=item $str = $f->output([$fh])
+
+=item "$f"
+
+Returns a string representing the source package format version.
+If $fh is set, it prints the string to the filehandle.
+
+=cut
+
+sub output {
+    my ($self, $fh) = @_;
+
+    my $str = $self->get();
+
+    print { $fh } "$str\n" if defined $fh;
+
+    return $str;
+}
+
+=item $f->save($filename)
+
+Save the source package format into the given $filename.
+
+=back
+
+=head1 CHANGES
+
+=head2 Version 1.00 (dpkg 1.19.3)
+
+Mark the module as public.
+
+=cut
+
+1;