With --watch, the output may be redirected to a pipe or socket
which Perl may decide to buffer. Ensure Perl doesn't buffer
these outputs since they can provide real-time status updates
in response to signals or FS activity.
or die $help;
if ($opt->{help}) { print $help; exit 0 };
die "--jobs must be >= 0\n" if defined $opt->{jobs} && $opt->{jobs} < 0;
-
+require IO::Handle;
+STDOUT->autoflush(1);
+STDERR->autoflush(1);
# require lazily to speed up --help
my $eidx_dir = shift(@ARGV) // die "E: $help";
local $SIG{USR1} = 'IGNORE'; # to be overridden in eidx_sync