use both Date: and Received: times

We want to rely on Date: to sort messages within individual
threads since it keeps messages from git-send-email(1) sorted.
However, since developers occasionally have the clock set
wrong on their machines, sort overall messages by the newest
date in a Received: header so the landing page isn't forever
polluted by messages from the future.

This also gives us determinism for commit times in most cases,
as we'll used the Received: timestamp there, as well.

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/PublicInbox/SearchView.pm b/lib/PublicInbox/SearchView.pm
index 53b88c34..55c588cb 100644
--- a/lib/PublicInbox/SearchView.pm
+++ b/lib/PublicInbox/SearchView.pm
@@ -117,11 +117,11 @@ sub mset_summary {
                         obfuscate_addrs($obfs_ibx, $s);
                         obfuscate_addrs($obfs_ibx, $f);
                 }
-                my $ts = PublicInbox::View::fmt_ts($smsg->ts);
+                my $date = PublicInbox::View::fmt_ts($smsg->ds);
                 my $mid = PublicInbox::Hval->new_msgid($smsg->mid)->{href};
                 $$res .= qq{$rank. <b><a\nhref="$mid/">}.
                         $s . "</a></b>\n";
-                $$res .= "$pfx  - by $f @ $ts UTC [$pct%]\n\n";
+                $$res .= "$pfx  - by $f @ $date UTC [$pct%]\n\n";
         }
         $$res .= search_nav_bot($mset, $q);
         *noop;
@@ -227,7 +227,7 @@ sub mset_thread {
         } ($mset->items) ]});
         my $r = $q->{r};
         my $rootset = PublicInbox::SearchThread::thread($msgs,
-                $r ? sort_relevance(\%pct) : *PublicInbox::View::sort_ts,
+                $r ? sort_relevance(\%pct) : *PublicInbox::View::sort_ds,
                 $srch);
         my $skel = search_nav_bot($mset, $q). "<pre>";
         my $inbox = $ctx->{-inbox};