view: show most recently updated topics, first

This probably makes the most sense as it's structured like
a changelog.

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index 5a312d84..3b041aab 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -879,14 +879,16 @@ sub acc_topic {
 
 sub dump_topics {
         my ($ctx) = @_;
-        my $order = $ctx->{order}; # [ ts, subj1, subj2, subj3, ... ]
+        my $order = delete $ctx->{order}; # [ ts, subj1, subj2, subj3, ... ]
         if (!@$order) {
                 $ctx->{-html_tip} = '<pre>[No topics in range]</pre>';
                 return 404;
         }
 
         my @out;
-        foreach my $topic (@$order) {
+
+        # sort by recency, this allows new posts to "bump" old topics...
+        foreach my $topic (sort { $b->[0] <=> $a->[0] } @$order) {
                 my ($ts, $n, $seen, $top, @ex) = @$topic;
                 @$topic = ();
                 next unless defined $top;  # ghost topic