viewvcs: keep temporary Solver dir for large streams

Streaming large blobs can take multiple iterations of the event
loop in our -httpd; so we must not let the File::Temp::Dir
result go out-of-scope when streaming large blobs created from
patches.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/PublicInbox/ViewVCS.pm b/lib/PublicInbox/ViewVCS.pm
index 962dc66b..60a62e57 100644
--- a/lib/PublicInbox/ViewVCS.pm
+++ b/lib/PublicInbox/ViewVCS.pm
@@ -48,6 +48,7 @@ sub stream_large_blob ($$$$) {
         my $qsp = PublicInbox::Qspawn->new($cmd);
         my @cl = ('Content-Length', $size);
         my $env = $ctx->{env};
+        $env->{'public-inbox.tmpgit'} = $git; # for {-tmp}/File::Temp::Dir
         $env->{'qspawn.wcb'} = delete $ctx->{-wcb};
         $qsp->psgi_return($env, undef, sub {
                 my ($r, $bref) = @_;