Rename the 'minimum' option to a more versatile 'range' parameter

[perl/modules/CPANPLUS-Dist-Gentoo.git] / lib / CPANPLUS / Dist / Gentoo / Atom.pm

diff --git a/lib/CPANPLUS/Dist/Gentoo/Atom.pm b/lib/CPANPLUS/Dist/Gentoo/Atom.pm
index ebe6a4e64d8e393c58c5af2ae3c7d6608becf8d0..bc0e9c027eb57809f817da445e64e92aa2673aeb 100644 (file)
--- a/lib/CPANPLUS/Dist/Gentoo/Atom.pm
+++ b/lib/CPANPLUS/Dist/Gentoo/Atom.pm
@@ -49,20 +49,30 @@ sub new {
   }
  }
 
- Carp::confess('Minimum atoms require a valid version') if  not defined $version
-                                                        and $args{minimum};
+ my $range = $args{range};
+ if (defined $version) {
+  if (defined $range) {
+   Carp::confess("Invalid range $range")
+                                      unless grep $range eq $_, qw|< <= = >= >|;
+  } else {
+   $range = '=';
+  }
+ } else {
+  Carp::confess('Range atoms require a valid version')
+                                            if defined $range and length $range;
+ }
 
  bless {
   category => $category,
   name     => $name,
   version  => $version,
-  minimum  => $args{minimum},
+  range    => $range,
   ebuild   => $args{ebuild},
  }, $class;
 }
 
 BEGIN {
- eval "sub $_ { \$_[0]->{$_} }" for qw/category name version minimum ebuild/;
+ eval "sub $_ { \$_[0]->{$_} }" for qw/category name version range ebuild/;
 }
 
 sub cmp {
@@ -90,44 +100,70 @@ sub as_string {
  my $atom = $a->category . '/' . $a->name;
 
  my $version = $a->version;
- if (defined $version) {
-  $atom = "=$atom-$version";
-  $atom = ">$atom" if $a->minimum;
- }
+ $atom = $a->range . $atom . '-' . $version if defined $version;
 
  return $atom;
 }
 
-sub fold {
+my %order = (
+ '<'  => -2,
+ '<=' => -1,
+  '=' =>  0,
+ '>=' =>  1,
+ '>'  =>  2,
+);
+
+sub and {
  shift unless length ref $_[0];
 
- my %seen;
- for my $atom (@_) {
-  my ($category, $name, $version) = map $atom->$_, qw/category name version/;
-  my $key = join '/', $category, $name;
-  my $cur = $seen{$key};
+ my $a1 = shift;
+ my $a2 = shift;
+ $a2 = $a2->and(@_) if @_;
 
-  unless (defined $cur) {
-   $seen{$key} = $atom;
-   next;
-  }
+ my $p1 = join '/', $a1->category, $a1->name;
+ my $p2 = join '/', $a2->category, $a2->name;
+ Carp::confess("Atoms for different packages $p1 and $p2") unless $p1 eq $p2;
 
-  next unless defined $version;
+ my $v1 = $a1->version;
+ return $a2 unless defined $v1;
+ my $r1 = $a1->range; # Defined if $v1 is defined
 
-  if (not defined $cur->version) {
-   $seen{$key} = $atom;
-   next;
-  }
+ my $v2 = $a2->version;
+ return $a1 unless defined $v2;
+ my $r2 = $a2->range; # defined if $v2 is defined
 
-  if ($atom->minimum) {
-   if ($cur->minimum) {
-    $seen{$key} = $atom < $cur ? $cur : $atom;
-   } else {
-    Carp::confess('Version mismatch') if $atom > $cur;
-   }
-  } elsif ($cur->minimum) {
-   Carp::confess('Version mismatch') if $cur > $atom;
-  }
+ my $o1 = $order{$r1};
+ my $o2 = $order{$r2};
+
+ Carp::confess("Incompatible ranges $r1$p1 and $r2$p2") if $o1 * $o2 < 0;
+
+ if ($r2 eq '=') {
+  ($a1, $a2) = ($a2, $a1);
+  ($v1, $v2) = ($v2, $v1);
+  ($r1, $r2) = ($r2, $r1);
+  ($o1, $o2) = ($o2, $o1);
+ }
+
+ if ($r1 eq '=') {
+  my $r = $r2 eq '=' ? '==' : $r2;
+  Carp::confess("Version mismatch $v1 $r $v2") unless eval "\$a1 $r \$a2";
+  return $a1;
+ } elsif ($o1 > 0) {
+  return $a1 < $a2 ? $a2 : $a1;
+ } else {
+  return $a1 < $a2 ? $a1 : $a2;
+ }
+}
+
+sub fold {
+ shift unless length ref $_[0];
+
+ my %seen;
+ for my $atom (@_) {
+  my $key = join '/', $atom->category, $atom->name;
+
+  my $cur = $seen{$key};
+  $seen{$key} = defined $cur ? $cur->and($atom) : $atom;
  }
 
  return values %seen;