swarming: add support for cipd on the server side

appengine/swarming/swarming_bot/bot_code/bot_main_test.py

 #!/usr/bin/env python
 # Copyright 2013 The LUCI Authors. All rights reserved.
 # Use of this source code is governed by the Apache v2.0 license that can be
 # found in the LICENSE file.
 
 import json
 import logging
 import os
 import shutil
 import sys
@@ skipping 80 matching lines @@
     self.assertEqual(expected, dimensions)
 
   def test_get_dimensions_load_test(self):
     os.environ['SWARMING_LOAD_TEST'] = '1'
     self.assertEqual(['id', 'load_test'], sorted(bot_main.get_dimensions(None)))
 
   def test_generate_version(self):
     self.assertEqual('123', bot_main.generate_version())
 
   def test_get_state(self):
-    self.mock(time, 'time', lambda: 1460000000.0)
+    self.mock(time, 'time', lambda: 1470000000.0)
     expected = os_utilities.get_state()
     expected['sleep_streak'] = 12
     # During the execution of this test case, the free disk space could have
     # changed.
     for disk in expected['disks'].itervalues():
       self.assertGreater(disk.pop('free_mb'), 1.)
     actual = bot_main.get_state(None, 12)
     for disk in actual['disks'].itervalues():
       self.assertGreater(disk.pop('free_mb'), 1.)
     self.assertGreater(actual.pop('nb_files_in_temp'), 0)
@@ skipping 431 matching lines @@
     self.assertEqual(0, bot_main.main([]))
 
 
 if __name__ == '__main__':
   fix_encoding.fix_encoding()
   if '-v' in sys.argv:
     TestBotMain.maxDiff = None
   logging.basicConfig(
       level=logging.DEBUG if '-v' in sys.argv else logging.CRITICAL)
   unittest.main()