From b02c7a346bd36f1325518ca110a781c619082da1 Mon Sep 17 00:00:00 2001
From: Eric Wong <e@yhbt.net>
Date: Fri, 24 Jul 2020 05:55:47 +0000
Subject: index: support --rethread switch to fix old indices

Older versions of public-inbox < 1.3.0 had subtly
different semantics around threading in some corner
cases.  This switch (when combined with --reindex)
allows us to fix them by regenerating associations.
---
 lib/PublicInbox/SearchIdx.pm | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'lib/PublicInbox/SearchIdx.pm')

diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index 83162509..e641ffd4 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -723,6 +723,7 @@ sub _index_sync {
 	my $pr = $opts->{-progress};
 
 	my $xdb = $self->begin_txn_lazy;
+	$self->{over}->rethread_prepare($opts);
 	my $mm = _msgmap_init($self);
 	do {
 		$xlog = undef; # stop previous git-log via SIGPIPE
@@ -761,12 +762,14 @@ sub _index_sync {
 				$xdb->set_metadata('last_commit', $newest);
 			}
 		}
+
+		$self->{over}->rethread_done($opts) if $newest; # all done
 		$self->commit_txn_lazy;
 		$git->cleanup;
 		$xdb = _xdb_release($self, $nr);
-		# let another process do some work... <
+		# let another process do some work...
 		$pr->("indexed $nr/$self->{ntodo}\n") if $pr && $nr;
-		if (!$newest) {
+		if (!$newest) { # more to come
 			$xdb = $self->begin_txn_lazy;
 			$dbh->begin_work if $dbh;
 		}
-- 
cgit v1.2.3-24-ge0c7