config: glob2re: fix over-matching /**/foo

Noticed while adding wildcard support to WwwCoderepo...

2 files changed, 3 insertions, 2 deletions

diff --git a/lib/PublicInbox/Config.pm b/lib/PublicInbox/Config.pm
index 33c59ec7..b8d3c485 100644
--- a/lib/PublicInbox/Config.pm
+++ b/lib/PublicInbox/Config.pm
@@ -662,7 +662,7 @@ sub squote_maybe ($) {
 }
 
 my %re_map = ( '*' => '[^/]*?', '?' => '[^/]',
-                '/**' => '/.*', '**/' => '.*/', '/**/' => '/.*?',
+                '/**' => '/.*', '**/' => '.*/', '/**/' => '(?:/.*?/|/)',
                 '[' => '[', ']' => ']', ',' => ',' );
 
 sub glob2re ($) {
diff --git a/t/config.t b/t/config.t
index 975cf836..c41a42d3 100644
--- a/t/config.t
+++ b/t/config.t
@@ -296,8 +296,9 @@ is_deeply($glob2re->('\\\\{a,b}'), '\\\\\\\\(a|b)', 'fake escape brace');
 is_deeply($glob2re->('**/foo'), '.*/foo', 'double asterisk start');
 is_deeply($glob2re->('foo/**'), 'foo/.*', 'double asterisk end');
 my $re = $glob2re->('a/**/b');
-is_deeply($re, 'a/.*?b', 'double asterisk middle');
+is_deeply($re, 'a(?:/.*?/|/)b', 'double asterisk middle');
 like($_, qr!$re!, "a/**/b matches $_") for ('a/b', 'a/c/b', 'a/c/a/b');
+unlike($_, qr!$re!, "a/**/b doesn't match $_") for ('a/ab');
 
 {
         my $w = '';