isolate: test uploading of individual regular files

client/cmd/isolate/exp_archive.go

 // Copyright 2015 The LUCI Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //      http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 161 matching lines @@
         if err := c.parseFlags(args); err != nil {
                 fmt.Fprintf(a.GetErr(), "%s: %s\n", a.GetName(), err)
                 return 1
         }
         if err := c.main(); err != nil {
                 fmt.Fprintf(a.GetErr(), "%s: %s\n", a.GetName(), err)
                 return 1
         }
         return 0
 }
-
-func hashFile(path string) (isolated.HexDigest, error) {
-        f, err := os.Open(path)
-        if err != nil {
-                return "", err
-        }
-        defer f.Close()
-        return isolated.Hash(f)
-}