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-rw-r--r--lib/PublicInbox/LeiExternal.pm3
-rw-r--r--t/lei.t4
2 files changed, 7 insertions, 0 deletions
diff --git a/lib/PublicInbox/LeiExternal.pm b/lib/PublicInbox/LeiExternal.pm
index e7693e09..bf07c41c 100644
--- a/lib/PublicInbox/LeiExternal.pm
+++ b/lib/PublicInbox/LeiExternal.pm
@@ -58,6 +58,9 @@ sub lei_add_external {
         my $cfg = $self->_lei_cfg(1);
         my $new_boost = $self->{opt}->{boost} // 0;
         $location = _canonicalize($location);
+        if ($location !~ m!\Ahttps?://! && !-d $location) {
+                return $self->fail("$location not a directory");
+        }
         my $key = "external.$location.boost";
         my $cur_boost = $cfg->{$key};
         return if defined($cur_boost) && $cur_boost == $new_boost; # idempotent
diff --git a/t/lei.t b/t/lei.t
index 6b45f5b7..60ca75c5 100644
--- a/t/lei.t
+++ b/t/lei.t
@@ -193,6 +193,10 @@ my $test_external = sub {
         ok(!-e $config_file && !-e $store_dir,
                 'nothing created by ls-external');
 
+        ok(!$lei->('add-external', "$home/nonexistent"),
+                "fails on non-existent dir");
+        $lei->('ls-external');
+        is($out.$err, '', 'ls-external still has no output');
         my $cfg = PublicInbox::Config->new;
         $cfg->each_inbox(sub {
                 my ($ibx) = @_;