add getPagePathsByPath method

README.md

@@ -136,6 +136,18 @@ var_dump (
 )
 ```
 
+#### Filesystem::getPagePathsByPath
+
+Return pages under the given data directory
+
+```
+var_dump (
+    $filesystem->getPagePathsByPath(
+        // absolute path to target data directory (e.g. Filesystem::getDirectoryPathByUri)
+    )
+)
+```
+
 #### Filesystem::getDirectoryPathByUri
 #### Filesystem::getPagePathByUri
 

src/Dokuwiki/Filesystem.php

@@ -32,6 +32,16 @@ class Filesystem
         return $this->_list;
     }
 
+    public function getPagePathsByPath(string $path): ?array
+    {
+        if (isset($this->_tree[$path]))
+        {
+            return $this->_tree[$path];
+        }
+
+        return null;
+    }
+
     public function getPagePathByUri(string $uri): ?string
     {
         $path = sprintf(