From: Vincent Pit <vince@profvince.com>
Date: Fri, 27 Nov 2009 00:37:39 +0000 (+0100)
Subject: Strip duplicated entries in the RDEPEND list
X-Git-Tag: v0.09~19
X-Git-Url: http://git.vpit.fr/?p=perl%2Fmodules%2FCPANPLUS-Dist-Gentoo.git;a=commitdiff_plain;h=74685418c28730b1369e262955b9ffef57cda050

Strip duplicated entries in the RDEPEND list
---

diff --git a/lib/CPANPLUS/Dist/Gentoo.pm b/lib/CPANPLUS/Dist/Gentoo.pm
index a753ab4..c27c5b5 100644
--- a/lib/CPANPLUS/Dist/Gentoo.pm
+++ b/lib/CPANPLUS/Dist/Gentoo.pm
@@ -316,8 +316,8 @@ sub prepare {
    1 while unlink $file;
   }
  } else {
-  if (my @match = $self->_cpan2portage($name, $version)) {
-   $stat->dist($match[1]);
+  if (my $atom = $self->_cpan2portage($name, $version)) {
+   $stat->dist($atom->ebuild);
    return $SKIP->('Ebuild already generated for', $stat->distribution);
   }
  }
@@ -513,17 +513,21 @@ sub ebuild_source {
  # dist.
  my @requires;
  for (@{$stat->requires}) {
-  my $dep = $self->_cpan2portage(@$_);
-  unless (defined $dep) {
+  my $atom = $self->_cpan2portage(@$_);
+  unless (defined $atom) {
    $self->_abort(
     "Couldn't find an appropriate ebuild for $_->[0] in the portage tree"
    );
    return;
   }
-  push @requires, $dep;
+  push @requires, $atom;
  }
 
- @requires = do { my %seen; sort grep !$seen{$_}++, 'dev-lang/perl',@requires };
+ my $perl = CPANPLUS::Dist::Gentoo::Atom->new(
+  category => 'dev-lang',
+  name     => 'perl',
+ );
+ @requires = CPANPLUS::Dist::Gentoo::Atom->fold($perl, @requires);
 
  my $d = $stat->header;
  $d   .= "# Generated by CPANPLUS::Dist::Gentoo version $VERSION\n\n";
@@ -535,7 +539,7 @@ sub ebuild_source {
  $d   .= "SLOT=\"0\"\n";
  $d   .= 'LICENSE="|| ( ' . join(' ', sort @{$stat->license}) . " )\"\n";
  $d   .= 'KEYWORDS="' . join(' ', sort @{$stat->keywords}) . "\"\n";
- $d   .= 'RDEPEND="' . join("\n", @requires) . "\"\n";
+ $d   .= 'RDEPEND="' . join("\n", sort @requires) . "\"\n";
  $d   .= "DEPEND=\"\${RDEPEND}\"\n";
  $d   .= "SRC_TEST=\"do\"\n";
  $d   .= $stat->footer;
@@ -563,19 +567,14 @@ sub _cpan2portage {
     "$atom-*.ebuild",
    ) or next;
 
-   my $last = reduce { $a->[1] < $b->[1] ? $b : $a }
-               map [ $_, CPANPLUS::Dist::Gentoo::Atom->new(ebuild => $_) ],
-                @ebuilds;
-
-   my $dep;
-   if (defined $ver) { # implies that $version is defined
-    next if $last < $ver;
-    $dep = ">=$category/$atom-$ver";
-   } else {
-    $dep = "$category/$atom";
-   }
+   my $atom = reduce { $a < $b ? $b : $a } # handles overloading
+               map CPANPLUS::Dist::Gentoo::Atom->new(
+                ebuild  => $_,
+                minimum => 1,
+               ), @ebuilds;
+   next if defined $ver and $atom < $ver;
 
-   return wantarray ? ($dep, $last->[0]) : $dep;
+   return $atom;
   }
 
  }
diff --git a/lib/CPANPLUS/Dist/Gentoo/Atom.pm b/lib/CPANPLUS/Dist/Gentoo/Atom.pm
index b017e6b..45a68c5 100644
--- a/lib/CPANPLUS/Dist/Gentoo/Atom.pm
+++ b/lib/CPANPLUS/Dist/Gentoo/Atom.pm
@@ -49,15 +49,20 @@ sub new {
   }
  }
 
+ Carp::confess('Minimum atoms require a valid version') if  not defined $version
+                                                        and $args{minimum};
+
  bless {
   category => $category,
   name     => $name,
   version  => $name,
+  minimum  => $args{minimum},
+  ebuild   => $args{ebuild},
  }, $class;
 }
 
 BEGIN {
- eval "sub $_ { \$_[0]->{$_} }" for qw/category name version/;
+ eval "sub $_ { \$_[0]->{$_} }" for qw/category name version minimum ebuild/;
 }
 
 sub cmp {
@@ -82,7 +87,50 @@ sub cmp {
 sub as_string {
  my ($a) = @_;
 
- $a->category . '/' . $a->name . '-' . $a->version;
+ my $atom = $a->category . '/' . $a->name;
+
+ my $version = $a->version;
+ if (defined $version) {
+  $atom = "=$atom-$version";
+  $atom = ">$atom" if $a->minimum;
+ }
+
+ return $atom;
+}
+
+sub fold {
+ 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};
+
+  unless (defined $cur) {
+   $seen{$key} = $atom;
+   next;
+  }
+
+  next unless defined $version;
+
+  if (not defined $cur->version) {
+   $seen{$key} = $atom;
+   next;
+  }
+
+  if ($atom->minimum) {
+   if ($cur->minmium) {
+    $seen{$key} = $atom < $cur ? $cur : $atom;
+   } else {
+    Carp::confess('Version mismatch') if $atom > $cur;
+   }
+  } elsif ($cur->minimum) {
+   Carp::confess('Version mismatch') if $cur > $atom;
+  }
+ }
+
+ return values %seen;
 }
 
 1;