index: v2: parallel by default

InboxWritable should only set $v2w->{parallel} if the $parallel
flag is defined to 0 or 1.  We want indexing a new inbox to
utilize SMP, just like --reindex.

-index once again allows -j0/--jobs=0 to force single-process
use, and we'll be ensuring that works in tests to maintain
performance on small systems.

Fixes: 61a2fff5b34a3e32 ("admin: move index_inbox over")

1 files changed, 1 insertions, 1 deletions

diff --git a/script/public-inbox-index b/script/public-inbox-index
index 0018668e..6217fb86 100755
--- a/script/public-inbox-index
+++ b/script/public-inbox-index
@@ -18,7 +18,7 @@ my $opt = { quiet => -1, compact => 0, maxsize => undef };
 GetOptions($opt, qw(verbose|v+ reindex compact|c+ jobs|j=i prune
                 indexlevel|L=s maxsize|max-size=s batchsize|batch-size=s))
         or die "bad command-line args\n$usage";
-die "--jobs must be positive\n" if defined $opt->{jobs} && $opt->{jobs} <= 0;
+die "--jobs must be >= 0\n" if defined $opt->{jobs} && $opt->{jobs} < 0;
 
 if ($opt->{compact}) {
         require PublicInbox::Xapcmd;