[PATCH] lei import: increase flags search batch size, display progress

[Eric Wong <e@80x24.org>]

IMAP flag-only synchronization doesn't fetch entire messages,
so we can safely bump the batch size iff a user specified one
for full messages to 10000 times that.

Since I sometimes wonder why nothing happens for several seconds
after starting "lei import $URL", we'll also show some progress
during the flag synchronization phase.
---
 lib/PublicInbox/NetReader.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/PublicInbox/NetReader.pm b/lib/PublicInbox/NetReader.pm
index 0c2288d8..23445e7a 100644
--- a/lib/PublicInbox/NetReader.pm
+++ b/lib/PublicInbox/NetReader.pm
@@ -462,8 +462,9 @@ sub each_old_flags ($$$$) {
 	my ($self, $mic, $uri, $l_uid) = @_;
 	$l_uid ||= 1;
 	my $sec = uri_section($uri);
-	my $bs = $self->{imap_opt}->{$sec}->{batch_size} // 10000;
+	my $bs = ($self->{imap_opt}->{$sec}->{batch_size} // 1) * 10000;
 	my ($eml_cb, @args) = @{$self->{eml_each}};
+	$self->{quiet} or warn "# $uri syncing flags 1:$l_uid\n";
 	for (my $n = 1; $n <= $l_uid; $n += $bs) {
 		my $end = $n + $bs;
 		$end = $l_uid if $end > $l_uid;