[Android] Add a custom pylintrc for build/android/.

build/android/pylib/forwarder.py

 # Copyright (c) 2012 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.
 
 # pylint: disable=W0212
 
 import fcntl
 import logging
 import os
 import psutil
@@ skipping 134 matching lines @@
         if adb_serial == device_serial:
           Forwarder._UnmapDevicePortLocked(device_port, device)
       # There are no more ports mapped, kill the device_forwarder.
       tool = valgrind_tools.CreateTool(None, device)
       Forwarder._KillDeviceLocked(device, tool)
 
   @staticmethod
   def DevicePortForHostPort(host_port):
     """Returns the device port that corresponds to a given host port."""
     with _FileLock(Forwarder._LOCK_PATH):
-      (_device_serial, device_port) = Forwarder._GetInstanceLocked(
+      _, device_port = Forwarder._GetInstanceLocked(
           None)._host_to_device_port_map.get(host_port)
       return device_port
 
   @staticmethod
   def RemoveHostLog():
     if os.path.exists(Forwarder._HOST_FORWARDER_LOG):
       os.unlink(Forwarder._HOST_FORWARDER_LOG)
 
   @staticmethod
   def GetHostLog():
@@ skipping 41 matching lines @@
   @staticmethod
   def _UnmapDevicePortLocked(device_port, device):
     """Internal method used by UnmapDevicePort().
 
     Note that the global lock must be acquired before calling this method.
     """
     instance = Forwarder._GetInstanceLocked(None)
     serial = str(device)
     serial_with_port = (serial, device_port)
     if not serial_with_port in instance._device_to_host_port_map:
-      logging.error('Trying to unmap non-forwarded port %d' % device_port)
+      logging.error('Trying to unmap non-forwarded port %d', device_port)
       return
     redirection_command = ['--adb=' + constants.GetAdbPath(),
                            '--serial-id=' + serial,
                            '--unmap', str(device_port)]
     logging.info('Undo forwarding using command: %s', redirection_command)
     (exit_code, output) = cmd_helper.GetCmdStatusAndOutput(
         [instance._host_forwarder_path] + redirection_command)
     if exit_code != 0:
-      logging.error('%s exited with %d:\n%s' % (
-          instance._host_forwarder_path, exit_code, '\n'.join(output)))
+      logging.error(
+          '%s exited with %d:\n%s',
+          instance._host_forwarder_path, exit_code, '\n'.join(output))
     host_port = instance._device_to_host_port_map[serial_with_port]
     del instance._device_to_host_port_map[serial_with_port]
     del instance._host_to_device_port_map[host_port]
 
   @staticmethod
   def _GetPidForLock():
     """Returns the PID used for host_forwarder initialization.
 
     The PID of the "sharder" is used to handle multiprocessing. The "sharder"
     is the initial process that forks that is the parent process.
@@ skipping 78 matching lines @@
     logging.info('Killing device_forwarder.')
     Forwarder._instance._initialized_devices.discard(str(device))
     if not device.FileExists(Forwarder._DEVICE_FORWARDER_PATH):
       return
 
     cmd = '%s %s --kill-server' % (tool.GetUtilWrapper(),
                                    Forwarder._DEVICE_FORWARDER_PATH)
     device.RunShellCommand(
         cmd, env={'LD_LIBRARY_PATH': Forwarder._DEVICE_FORWARDER_FOLDER},
         check_return=True)