[PATCH 5/8] index: allow specifying --jobs=0 to disable multiprocess

["Eric Wong (Contractor, The Linux Foundation)" <e@80x24.org>]

Not everybody needs multiprocess support.
---
 script/public-inbox-index | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/script/public-inbox-index b/script/public-inbox-index
index 73f88ac..db7ebba 100755
--- a/script/public-inbox-index
+++ b/script/public-inbox-index
@@ -31,7 +31,7 @@ my %opts = (
 	'--prune' => \$prune,
 );
 GetOptions(%opts) or die "bad command-line args\n$usage";
-die "--jobs must be positive\n" if defined $jobs && $jobs <= 0;
+die "--jobs must be positive\n" if defined $jobs && $jobs < 0;
 
 my @dirs;
 
@@ -101,11 +101,11 @@ sub index_dir {
 		eval { require PublicInbox::V2Writable };
 		die "v2 requirements not met: $@\n" if $@;
 		my $v2w = eval {
-			local $ENV{NPROC} = $jobs;
+			local $ENV{NPROC} = $jobs if $jobs;
 			PublicInbox::V2Writable->new($repo);
 		};
 		if (defined $jobs) {
-			if ($jobs == 1) {
+			if ($jobs == 0) {
 				$v2w->{parallel} = 0;
 			} else {
 				my $n = $v2w->{partitions};
-- 
EW