[devil] Add device provisioning logic to devil.

devil/devil/android/tools/device_status.py

 #!/usr/bin/env python
 # Copyright 2016 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.
 
 """A script to keep track of devices across builds and report state."""
 
 import argparse
 import json
 import logging
@@ skipping 242 matching lines @@
                       help='If set, overwrites known devices files wiht new '
                            'values.')
 
 def main():
   parser = argparse.ArgumentParser()
   AddArguments(parser)
   args = parser.parse_args()
 
   run_tests_helper.SetLogLevel(args.verbose)
 
-
-  devil_dynamic_config = {
-    'config_type': 'BaseConfig',
-    'dependencies': {},
-  }
+  devil_dynamic_config = devil_env.EmptyConfig()
 
   if args.adb_path:
-    devil_dynamic_config['dependencies'].update({
-        'adb': {
-          'file_info': {
-            devil_env.GetPlatform(): {
-              'local_paths': [args.adb_path]
-            }
-          }
-        }
-    })
+    devil_dynamic_config['dependencies'].update(
+        devil_env.LocalConfigItem(
+            'adb', devil_env.GetPlatform(), args.adb_path))
   devil_env.config.Initialize(configs=[devil_dynamic_config])
 
   blacklist = (device_blacklist.Blacklist(args.blacklist_file)
                if args.blacklist_file
                else None)
 
   expected_devices = GetExpectedDevices(args.known_devices_files)
   usb_devices = set(lsusb.get_android_devices())
   devices = [device_utils.DeviceUtils(s)
              for s in expected_devices.union(usb_devices)]
@@ skipping 23 matching lines @@
                       and not IsBlacklisted(status['serial'], blacklist))]
 
   # If all devices failed, or if there are no devices, it's an infra error.
   if not live_devices:
     logging.error('No available devices.')
   return 0 if live_devices else exit_codes.INFRA
 
 
 if __name__ == '__main__':
   sys.exit(main())