Add support to cache arbitrary file. Also rename repository_root to REPOSITORY_ROOT.

tests/gcl_unittest.py

 #!/usr/bin/python
 # Copyright (c) 2009 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.
 
 """Unit tests for gcl.py."""
 
 import StringIO
 import os
 import sys
@@ skipping 36 matching lines @@
       print diff
     self.assertEqual(actual_members, expected_members)
 
 
 class GclUnittest(GclTestsBase):
   """General gcl.py tests."""
   def testMembersChanged(self):
     members = [
       'CODEREVIEW_SETTINGS', 'CODEREVIEW_SETTINGS_FILE', 'CPP_EXTENSIONS',
       'Change', 'ChangeInfo', 'Changes', 'Commit', 'DoPresubmitChecks',
-      'ErrorExit', 'GenerateChangeName', 'GenerateDiff', 'GetCLs',
+      'ErrorExit', 'FILES_CACHE', 'GenerateChangeName', 'GenerateDiff',
+      'GetCacheDir', 'GetCachedFile', 'GetChangesDir', 'GetCLs',
       'GetChangelistInfoFile', 'GetCodeReviewSetting', 'GetEditor',
       'GetFilesNotInCL', 'GetInfoDir', 'GetIssueDescription',
       'GetModifiedFiles', 'GetRepositoryRoot',
       'GetSVNFileProperty', 'Help', 'IGNORE_PATHS', 'IsSVNMoved', 'IsTreeOpen',
       'Lint', 'LoadChangelistInfo', 'LoadChangelistInfoForMultiple',
       'MISSING_TEST_MSG', 'Opened', 'PresubmitCL', 'ReadFile',
-      'RunShell',
+      'REPOSITORY_ROOT', 'RunShell',
       'RunShellWithReturnCode', 'SEPARATOR', 'SendToRietveld', 'TryChange',
-      'UnknownFiles', 'UploadCL', 'Warn', 'WriteFile', 'gclient',
-      'gcl_info_dir', 'getpass', 'main', 'os', 'random', 're', 'read_gcl_info',
-      'repository_root', 'string', 'subprocess', 'sys', 'tempfile', 'upload',
-      'urllib2', 'xml',
+      'UnknownFiles', 'UploadCL', 'Warn', 'WriteFile',
+      'gclient', 'getpass', 'main', 'os', 'random', 're',
+      'shutil', 'string', 'subprocess', 'sys', 'tempfile',
+      'upload', 'urllib2', 'xml',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(gcl, members)
 
 
   def testHelp(self):
     old_stdout = sys.stdout
     try:
       dummy = StringIO.StringIO()
       gcl.sys.stdout = dummy
       gcl.Help()
-      self.assertEquals(len(dummy.getvalue()), 1813)
+      self.assertEquals(len(dummy.getvalue()), 1815)
     finally:
       gcl.sys.stdout = old_stdout
 
   def testGetRepositoryRootNone(self):
-    gcl.repository_root = None
+    gcl.REPOSITORY_ROOT = None
     gcl.os.getcwd().AndReturn("/bleh/prout")
     result = {
       "Repository Root": ""
     }
     gcl.gclient.CaptureSVNInfo("/bleh/prout", print_error=False).AndReturn(
         result)
     self.mox.ReplayAll()
     self.assertRaises(Exception, gcl.GetRepositoryRoot)
     self.mox.VerifyAll()
 
   def testGetRepositoryRootGood(self):
-    gcl.repository_root = None
+    gcl.REPOSITORY_ROOT = None
     root_path = os.path.join('bleh', 'prout', 'pouet')
     gcl.os.getcwd().AndReturn(root_path)
     result1 = { "Repository Root": "Some root" }
     gcl.gclient.CaptureSVNInfo(root_path, print_error=False).AndReturn(result1)
     gcl.os.getcwd().AndReturn(root_path)
     results2 = { "Repository Root": "A different root" }
     gcl.gclient.CaptureSVNInfo(
         os.path.dirname(root_path),
         print_error=False).AndReturn(results2)
     self.mox.ReplayAll()
@@ skipping 168 matching lines @@
                   ['--issue', '1', '--patchset', '2'],
                   swallow_exception=True)
     gcl.os.chdir('somewhere')
     self.mox.ReplayAll()
     gcl.UploadCL(change_info, args)
     self.mox.VerifyAll()
 
 
 if __name__ == '__main__':
   unittest.main()