Add string comparison for atoms

diff --git a/lib/CPANPLUS/Dist/Gentoo/Atom.pm b/lib/CPANPLUS/Dist/Gentoo/Atom.pm
index 8ee0f889d8789e2c4058fc9e37ee6aa5903b8c98..002b349be48a31dc5ff532f80760a49bf5456df6 100644 (file)
--- a/lib/CPANPLUS/Dist/Gentoo/Atom.pm
+++ b/lib/CPANPLUS/Dist/Gentoo/Atom.pm
@@ -10,6 +10,7 @@ use Scalar::Util ();
 
 use overload (
  '<=>' => \&_spaceship,
+ 'cmp' => \&_cmp,
  '""'  => \&_stringify,
 );
 
@@ -96,6 +97,25 @@ sub _spaceship {
  return $v1 <=> $v2;
 }
 
+sub _cmp {
+ my ($a1, $a2, $r) = @_;
+
+ my $s1 = $a1->qualified_name;
+ my $v1 = $a1->version;
+ $s1   .= "-$v1" if defined $v1;
+
+ my $s2;
+ if (Scalar::Util::blessed($a2) and $a2->isa(__PACKAGE__)) {
+  $s2    = $a2->qualified_name;
+  my $v2 = $a2->version;
+  $s2   .= "-$v2" if defined $v2;
+ } else {
+  $s2 = $a2;
+ }
+
+ $s1 cmp $s2;
+}
+
 sub _stringify {
  my ($a) = @_;