index: allow working on unconfigured inboxes, again

diff --git a/script/public-inbox-index b/script/public-inbox-index
index 73ad9bc4a1c08926f83ccfcde1857f863952e1ee..2ae92757cac6607ec9c6658df3c221c5900dcddb 100755 (executable)
--- a/script/public-inbox-index
+++ b/script/public-inbox-index
@@ -14,7 +14,7 @@ my $usage = "public-inbox-index REPO_DIR";
 use PublicInbox::Config;
 my $config = eval { PublicInbox::Config->new } || eval {
        warn "public-inbox unconfigured for serving, indexing anyways...\n";
-       {}
+       undef;
 };
 eval { require PublicInbox::SearchIdx };
 if ($@) {
@@ -73,7 +73,7 @@ if (@ARGV) {
 sub usage { print STDERR "Usage: $usage\n"; exit 1 }
 usage() unless @dirs;
 
-$config->each_inbox(sub {
+defined($config) and $config->each_inbox(sub {
        my ($ibx) = @_;
 
        for my $i (0..$#dirs) {