lei_to_mail: write directly to mail_sync.sqlite3

No need to go through the lei/store process when we write
mail_sync.sqlite3.  This ought to reduce ENOBUFS errors (and the
sleep workaround) on RAM-starved systems.

1 files changed, 6 insertions, 3 deletions

diff --git a/lib/PublicInbox/LeiQuery.pm b/lib/PublicInbox/LeiQuery.pm
index effc572f..3d0e5b14 100644
--- a/lib/PublicInbox/LeiQuery.pm
+++ b/lib/PublicInbox/LeiQuery.pm
@@ -32,10 +32,13 @@ sub _start_query { # used by "lei q" and "lei up"
         if ($l2m && grep { $opt->{$_} //= \1 } (qw(mail-sync import-remote
                                                         import-before))) {
                 $self->_lei_store(1)->write_prepare($self);
+                if ($opt->{'mail-sync'}) {
+                        my $lms = $l2m->{-lms_rw} = $self->lms(1);
+                        $lms->lms_write_prepare->lms_pause; # just create
+                }
         }
-        $l2m and $l2m->{-wq_nr_workers} = $mj // do {
-                $mj = int($nproc * 0.75 + 0.5); # keep some CPU for git
-        };
+        $l2m and $l2m->{-wq_nr_workers} = $mj //
+                int($nproc * 0.75 + 0.5); # keep some CPU for git
 
         # descending docid order is cheapest, MUA controls sorting order
         $self->{mset_opt}->{relevance} //= -2 if $l2m || $opt->{threads};