cipd: accept a function in EnsureFile

client/cipd/local/deployer.go

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package local
 
 import (
         "crypto/sha1"
         "encoding/base64"
         "fmt"
@@ skipping 344 matching lines @@
         return current, nil
 }
 
 // setCurrentInstanceID changes a pointer to currently installed instance ID. It
 // takes a path to a package directory (.cipd/pkgs/<name>) as input.
 func (d *deployerImpl) setCurrentInstanceID(packageDir string, instanceID string) error {
         if err := common.ValidateInstanceID(instanceID); err != nil {
                 return err
         }
         if runtime.GOOS == "windows" {
-                return d.fs.EnsureFile(filepath.Join(packageDir, currentTxt), strings.NewReader(instanceID))
+                return EnsureFile(d.fs, filepath.Join(packageDir, currentTxt), strings.NewReader(instanceID))
         }
         return d.fs.EnsureSymlink(filepath.Join(packageDir, currentSymlink), instanceID)
 }
 
 // readManifest reads package manifest given a path to a package instance
 // (.cipd/pkgs/<name>/<instance id>).
 func (d *deployerImpl) readManifest(instanceDir string) (Manifest, error) {
         manifestPath := filepath.Join(instanceDir, filepath.FromSlash(manifestName))
         r, err := os.Open(manifestPath)
         if err != nil {
@@ skipping 160 matching lines @@
                                         Size:       uint64(info.Size()),
                                         Executable: (info.Mode().Perm() & 0111) != 0,
                                         Symlink:    symlink,
                                 })
                         }
                 }
                 return nil
         })
         return out, err
 }