Cache/retrieve extracted CIPD packages in local isolate cache

client/isolated_format.py

 # Copyright 2014 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.
 
 """Understands .isolated files and can do local operations on them."""
 
 import hashlib
 import json
 import logging
 import os
@@ skipping 68 matching lines @@
       if not chunk:
         break
       digest.update(chunk)
   return digest.hexdigest()
 
 
 class IsolatedFile(object):
   """Represents a single parsed .isolated file."""
 
   def __init__(self, obj_hash, algo):
-    """|obj_hash| is really the sha-1 of the file."""
+    """|obj_hash| is really the hash of the file."""
     self.obj_hash = obj_hash
     self.algo = algo
 
     # Raw data.
     self.data = {}
     # A IsolatedFile instance, one per object in self.includes.
     self.children = []
 
     # Set once the .isolated file is loaded.
     self._is_loaded = False
@@ skipping 474 matching lines @@
     data['files'] = dict(
         (k.replace(wrong_path_sep, os.path.sep), v)
         for k, v in data['files'].iteritems())
     for v in data['files'].itervalues():
       if 'l' in v:
         v['l'] = v['l'].replace(wrong_path_sep, os.path.sep)
   if 'relative_cwd' in data:
     data['relative_cwd'] = data['relative_cwd'].replace(
         wrong_path_sep, os.path.sep)
   return data