handle transitive dependencies by re-running dep resolver

This is a rather expensive solution to the transitive dependency problem.

diff --git a/IkiWiki/Render.pm b/IkiWiki/Render.pm
index 246c2260d7748e9fe2b3522d73035564e0fb6754..c58f33d68450bb3ab16249225204f92dd572116a 100644 (file)
--- a/IkiWiki/Render.pm
+++ b/IkiWiki/Render.pm
@@ -455,50 +455,55 @@ sub refresh () {
        }
 
        if (%rendered || @del || @internal) {
-               my @changed=(keys %rendered, @del);
-
-               my %lcchanged = map { lc(pagename($_)) => 1 } @changed;
- 
-               # rebuild dependant pages
-               foreach my $f (@$files) {
-                       next if $rendered{$f};
-                       my $p=pagename($f);
-                       my $reason = undef;
-
-                       if (exists $depends_simple{$p}) {
-                               foreach my $d (keys %{$depends_simple{$p}}) {
-                                       if (exists $lcchanged{$d}) {
-                                               $reason = $d;
-                                               last;
+               my @changed;
+               my $changes;
+               do {
+                       $changes=0;
+                       @changed=(keys %rendered, @del);
+                       my %lcchanged = map { lc(pagename($_)) => 1 } @changed;
+
+                       # rebuild dependant pages
+                       foreach my $f (@$files) {
+                               next if $rendered{$f};
+                               my $p=pagename($f);
+                               my $reason = undef;
+       
+                               if (exists $depends_simple{$p}) {
+                                       foreach my $d (keys %{$depends_simple{$p}}) {
+                                               if (exists $lcchanged{$d}) {
+                                                       $reason = $d;
+                                                       last;
+                                               }
                                        }
                                }
-                       }
-
-                       if (exists $depends{$p} && ! defined $reason) {
-                               D: foreach my $d (keys %{$depends{$p}}) {
-                                       my $sub=pagespec_translate($d);
-                                       next if $@ || ! defined $sub;
-
-                                       # only consider internal files
-                                       # if the page explicitly depends
-                                       # on such files
-                                       foreach my $file (@changed, $d =~ /internal\(/ ? @internal : ()) {
-                                               next if $file eq $f;
-                                               my $page=pagename($file);
-                                               if ($sub->($page, location => $p)) {
-                                                       $reason = $page;
-                                                       last D;
+       
+                               if (exists $depends{$p} && ! defined $reason) {
+                                       D: foreach my $d (keys %{$depends{$p}}) {
+                                               my $sub=pagespec_translate($d);
+                                               next if $@ || ! defined $sub;
+       
+                                               # only consider internal files
+                                               # if the page explicitly depends
+                                               # on such files
+                                               foreach my $file (@changed, $d =~ /internal\(/ ? @internal : ()) {
+                                                       next if $file eq $f;
+                                                       my $page=pagename($file);
+                                                       if ($sub->($page, location => $p)) {
+                                                               $reason = $page;
+                                                               last D;
+                                                       }
                                                }
                                        }
                                }
+       
+                               if (defined $reason) {
+                                       debug(sprintf(gettext("building %s, which depends on %s"), $f, $reason));
+                                       render($f);
+                                       $rendered{$f}=1;
+                                       $changes++;
+                               }
                        }
-
-                       if (defined $reason) {
-                               debug(sprintf(gettext("building %s, which depends on %s"), $f, $reason));
-                               render($f);
-                               $rendered{$f}=1;
-                       }
-               }
+               } while $changes;
                
                # handle backlinks; if a page has added/removed links,
                # update the pages it links to