lei blob: fail early if no git dirs

This avoids triggering a "BUG:" message in the solver code.

diff --git a/lib/PublicInbox/LeiBlob.pm b/lib/PublicInbox/LeiBlob.pm
index 4bd8625347396857dcf5d97faa82a9b06f6728fd..f44d8af1c8a0f2cda2294c6db34b25d9403ca4e2 100644 (file)
--- a/lib/PublicInbox/LeiBlob.pm
+++ b/lib/PublicInbox/LeiBlob.pm
@@ -103,6 +103,7 @@ sub lei_blob {
                my $cgd = get_git_dir('.');
                unshift(@$git_dirs, $cgd) if defined $cgd;
        }
+       return $lei->fail('no --git-dir to try') unless @$git_dirs;
        my $lxs = $lei->lxs_prepare or return;
        require PublicInbox::SolverGit;
        my $self = bless { lxs => $lxs, oid_b => $blob }, __PACKAGE__;