luci-go/common/dirwalk: Code for walking a directory tree efficiently

common/dirwalk/tests/tools/gendir/util.go

 // Copyright 2016 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package main
 
-//go:generate cproto -desc=printer_test.desc -discovery=false
+func min(a uint64, b uint64) uint64 {
+        if a > b {
+                return b
+        }
+        return a
+}
+func max(a uint64, b uint64) uint64 {
+        if a < b {
+                return b
+        }
+        return a
+}