use DBD::SQLite;
use File::Temp qw(tempfile);
use PublicInbox::Over;
+use PublicInbox::Spawn;
sub new {
my ($class, $git_dir, $writable) = @_;
sub tmp_clone {
my ($self, $dir) = @_;
my ($fh, $fn) = tempfile('msgmap-XXXXXXXX', EXLOCK => 0, DIR => $dir);
+ PublicInbox::Spawn::set_nodatacow(fileno($fh));
my $tmp;
if ($self->{dbh}->can('sqlite_backup_to_dbh')) {
$tmp = ref($self)->new_file($fn, 2);