performance improvement

lib/get-files.js

@@ -129,15 +129,15 @@ const explode = async function (paths, ignored, { limit, debug }) {
       s = await stat(path);
     }
 
+    if (isIgnored(file, ignored)) {
+      if (debug) console.log(`> [debug] Ignoring "${file}"`);
+      return null;
+    }
+
     if (s.isDirectory()) {
       const all = await readdir(file);
       return many(all.map(subdir => asAbsolute(subdir, file)));
     } else {
-      if (isIgnored(file, ignored)) {
-        if (debug) console.log(`> [debug] Ignoring "${file}"`);
-        return null;
-      }
-
       if (null != limit && s.size > limit) {
         console.error(`> \u001b[31mWarning!\u001b[39m Skipping file ` +
           `over ${bytes(limit)}: ${path}`);