update old script

script/helpers/walk-files.js

@@ -0,0 +1,17 @@
+const path = require('path')
+const walk = require('walk-sync')
+
+// [start-readme]
+//
+// A helper that returns an array of files for a given path and file extension.
+//
+// [end-readme]
+
+module.exports = function walkFiles (dir, ext, opts = {}) {
+  const dirPath = path.posix.join(process.cwd(), dir)
+  const walkSyncOpts = { includeBasePath: true, directories: false }
+
+  return walk(dirPath, walkSyncOpts)
+    .filter(file => file.endsWith(ext) && !file.endsWith('README.md'))
+    .filter(file => opts.includeEarlyAccess ? file : !file.includes('/early-access/'))
+}