inbox: don't memoize missing description|cloneurl

It's probably common to have inboxes initially setup without
these files properly configured, so don't memoize at that stage.

1 files changed, 8 insertions, 5 deletions

diff --git a/lib/PublicInbox/Inbox.pm b/lib/PublicInbox/Inbox.pm
index 95ffd039..e49f85fc 100644
--- a/lib/PublicInbox/Inbox.pm
+++ b/lib/PublicInbox/Inbox.pm
@@ -219,19 +219,22 @@ sub try_cat {
 
 sub description {
         my ($self) = @_;
-        $self->{description} //= do {
+        ($self->{description} //= do {
                 my $desc = try_cat("$self->{inboxdir}/description");
                 local $/ = "\n";
                 chomp $desc;
                 $desc =~ s/\s+/ /smg;
-                $desc eq '' ? '($INBOX_DIR/description missing)' : $desc;
-        };
+                $desc eq '' ? undef : $desc;
+        }) // '($INBOX_DIR/description missing)';
 }
 
 sub cloneurl {
         my ($self) = @_;
-        $self->{cloneurl} //=
-                [ split(/\s+/s, try_cat("$self->{inboxdir}/cloneurl")) ];
+        ($self->{cloneurl} //= do {
+                my $s = try_cat("$self->{inboxdir}/cloneurl");
+                my @urls = split(/\s+/s, $s);
+                scalar(@urls) ? \@urls : undef
+        }) // [];
 }
 
 sub base_url {