www_coderepo: improve handling of broken repos

The {readme} arrayref may be completely unset if a repo goes
missing, so account for that when the summary page runs.

diff --git a/lib/PublicInbox/WwwCoderepo.pm b/lib/PublicInbox/WwwCoderepo.pm
index a5e2dc4a9930e25942240147938644d34841a745..8587f530206cb2a95aa5d103c06c3dace58eb5b4 100644 (file)
--- a/lib/PublicInbox/WwwCoderepo.pm
+++ b/lib/PublicInbox/WwwCoderepo.pm
@@ -186,7 +186,7 @@ EOM
        print $zfh "...\n" if $last;
 
        # README
-       my ($bref, $oid, $ref_path) = @{delete $ctx->{qx_res}->{readme}};
+       my ($bref, $oid, $ref_path) = @{delete $ctx->{qx_res}->{readme} // []};
        if ($bref) {
                my $l = PublicInbox::Linkify->new;
                $$bref =~ s/\s*\z//sm;