From be580d0a3a7776b436e2d850c327cbaf1cd2174f Mon Sep 17 00:00:00 2001
From: Olivier Thauvin <nanardon@mandriva.org>
Date: Sun, 3 Sep 2006 04:46:25 +0000
Subject: - changing a value friendly set the peer one

---
 lib/MDV/Distribconf/Build.pm | 115 +++++++++++++++++++++++++++++++++++++++----
 1 file changed, 106 insertions(+), 9 deletions(-)

(limited to 'lib/MDV')

diff --git a/lib/MDV/Distribconf/Build.pm b/lib/MDV/Distribconf/Build.pm
index dd71ff6..756ddb8 100644
--- a/lib/MDV/Distribconf/Build.pm
+++ b/lib/MDV/Distribconf/Build.pm
@@ -13,6 +13,7 @@ MDV::Distribconf::Build - Subclass to MDV::Distribconf to build configuration
 use strict;
 use warnings;
 use MDV::Distribconf;
+use File::Path;
 
 use base qw(MDV::Distribconf MDV::Distribconf::Checks);
 our $VERSION = (qq$Revision$ =~ /(\d+)/)[0];
@@ -53,8 +54,9 @@ sub init {
     }
     foreach my $dir (map { $self->getfullpath(undef, $_) } qw(mediadir infodir)) {
         if (!-d $dir) {
-            if (!mkdir($dir)) {
-                warn "Cannot create $dir: $!\n";
+            eval { mkpath($dir) };
+            if ($@) {
+                warn "Cannot create $dir: $@\n";
                 return 0;
             }
         }
@@ -79,16 +81,18 @@ Return 1 on success, 0 otherwise
 
 sub create_media {
     my ($self, $media) = @_;
+    $self->setvalue($media, undef, undef);
     foreach my $dir (map { $self->getfullmediapath($media, $_) } qw(path infodir)) {
         if (!-d $dir) {
-            if (!mkdir($dir)) {
-                warn "Cannot create $dir: $!\n";
+            eval { mkpath($dir) };
+            if ($@) {
+                warn "Cannot create $dir: $@\n";
+                $self->delvalue($media, undef);
                 return 0;
             }
         }
     }
 
-    $self->setvalue($media, undef, undef);
 
     1;
 }
@@ -104,16 +108,71 @@ no defined parameters.
 sub setvalue {
     my ($distrib, $media, $var, $val) = @_;
     $media ||= 'media_info';
+    $distrib->{cfg}->AddSection($media);
     if ($var) {
+        if ($media && !$distrib->mediaexists($media)) {
+            $distrib->setvalue($media);
+        }
         $var =~ /^(?:media|info)dir\z/ and do {
             $distrib->{$var} = $val;
-            return;
+            return 1;
         };
-        $distrib->{cfg}->newval($media, $var, $val)
-	    or warn "Can't set value [$var=$val] for $media\n";
+        if ($val) {
+            $distrib->{cfg}->newval($media, $var, $val)
+	        or warn "Can't set value [$var=$val] for $media\n";
+        } else {
+            $distrib->{cfg}->delval($media, $var);
+        }
+    }
+    $distrib->_post_setvalue($media, $var, $val) if ($media);
+}
+
+sub _post_setvalue {
+    my ($distrib, $cmedia, $cvar, $cval) = @_;
+    if ($cvar) {
+        my $vsettings = MDV::Distribconf::MediaCFG::_value_info($cvar);
+        if ($vsettings->{cross}) {
+            my %pointed_media = map { $_ => 1 } split(/\s/, $cval);
+            foreach my $media ($distrib->listmedia()) {
+                my %ml = map { $_ => 1 }
+                    split(/\s/, $distrib->getvalue($media, $vsettings->{cross}));
+
+                if (exists($pointed_media{$media})) {
+                    exists($ml{$cmedia}) and next;
+                    $ml{$cmedia} = 1;
+                } else {
+                    exists($ml{$cmedia}) or next;
+                    delete($ml{$cmedia});
+                }
+                $distrib->setvalue(
+                    $media,
+                    $vsettings->{cross},
+                    join(" ", keys %ml),
+                );
+            }
+        }
     } else {
-        $distrib->{cfg}->AddSection($media);
+        foreach my $media ($distrib->listmedia()) {
+            foreach my $val ($distrib->{cfg}->Parameters($media)) {
+            my $vsettings = MDV::Distribconf::MediaCFG::_value_info($val);
+                if ($vsettings->{cross}) {
+                    if (grep { $_ eq $cmedia } 
+                        split(/\s/, $distrib->getvalue($media, $val))) {
+                        my %ml = map { $_ => 1 }
+                            split(/\s/, $distrib->getvalue($cmedia, $vsettings->{cross}));
+                        exists($ml{$media}) and next;
+                        $ml{$media} = 1;
+                        $distrib->setvalue(
+                            $cmedia,
+                            $vsettings->{cross},
+                            join(" ", keys %ml),
+                        );
+                    }
+                }
+            }
+        }
     }
+    1;
 }
 
 =item $distrib->delvalue($media, $var)
@@ -130,6 +189,44 @@ sub delvalue {
     } else {
         $distrib->{cfg}->DeleteSection($media);
     }
+    $distrib->_post_delvalue($media, $var);
+}
+
+sub _post_delvalue {
+    my ($distrib, $cmedia, $cvar) = @_;
+    foreach my $media ($distrib->listmedia()) {
+        if ($cvar) {
+            my $vsettings = MDV::Distribconf::MediaCFG::_value_info($cvar);
+            if ($vsettings->{cross}) {
+                if($distrib->getvalue($media, $vsettings->{cross})) {
+                    my %ml = map { $_ => 1 } split(/\s/, $distrib->getvalue($media, $vsettings->{cross}));
+                    exists($ml{$cmedia}) or next;
+                    delete($ml{$cmedia});
+
+                    $distrib->setvalue(
+                        $media,
+                        $vsettings->{cross},
+                        join(" ", keys %ml)
+                    );
+                }
+            }
+        } else {
+            foreach my $val ($distrib->{cfg}->Parameters($media)) {
+                my $vsettings = MDV::Distribconf::MediaCFG::_value_info($val);
+                if ($vsettings->{ismedialist} && $distrib->getvalue($media, $val)) {
+                    my %ml = map { $_ => 1 } split(/\s/, $distrib->getvalue($media, $val));
+                    exists($ml{$cmedia}) or next;
+                    delete($ml{$cmedia});
+                    $distrib->setvalue(
+                        $media,
+                        $val,
+                        join(" ", keys %ml)
+                    );
+                }
+            }
+        }
+    }
+    1;
 }
 
 =item $distrib->write_hdlists($hdlists)
-- 
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