www_stream: use DESTROY to cleanup temporary gits

Relying on a timer to handle cleanup in f9ac22a4b485 was
sub-optimal since the delay could prove expensive under heavy
traffic.  So rely on ->DESTROY instead since we we no longer
hold reference cycles by the time the show_blob callback
executes.

Fixes: f9ac22a4b485 ("git_async_cat: automatically cleanup temporary gits")

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/PublicInbox/WwwStream.pm b/lib/PublicInbox/WwwStream.pm
index 77b6f9c2..16442d51 100644
--- a/lib/PublicInbox/WwwStream.pm
+++ b/lib/PublicInbox/WwwStream.pm
@@ -220,4 +220,9 @@ sub html_init {
         print { $ctx->zfh } html_top($ctx);
 }
 
+sub DESTROY {
+        my ($ctx) = @_;
+        $ctx->{git}->cleanup if $ctx->{git} && $ctx->{git}->{-tmp};
+}
+
 1;