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

build/android/buildbot/bb_device_status_check.py

 #!/usr/bin/env python
 #
 # Copyright 2013 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 class to keep track of devices across builds and report state."""
 import argparse
 import json
 import logging
 import os
 import psutil
 import re
 import signal
 import smtplib
-import subprocess
 import sys
-import time
-import urllib
 
 import bb_annotations
-import bb_utils
 
 sys.path.append(os.path.join(os.path.dirname(__file__),
                              os.pardir, os.pardir, 'util', 'lib',
                              'common'))
 import perf_tests_results_helper  # pylint: disable=F0401
 
 sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
 from devil.android import battery_utils
 from devil.android import device_blacklist
 from devil.android import device_errors
 from devil.android import device_list
 from devil.android import device_utils
 from devil.android.sdk import adb_wrapper
 from devil.utils import reset_usb
 from devil.utils import run_tests_helper
-from devil.utils import timeout_retry
 from pylib import constants
-from pylib.cmd_helper import GetCmdOutput
 
-_RE_DEVICE_ID = re.compile('Device ID = (\d+)')
+_RE_DEVICE_ID = re.compile(r'Device ID = (\d+)')
 
 def DeviceInfo(device, args):
   """Gathers info on a device via various adb calls.
 
   Args:
     device: A DeviceUtils instance for the device to construct info about.
 
   Returns:
     Tuple of device type, build id, report as a string, error messages, and
     boolean indicating whether or not device can be used for testing.
@@ skipping 90 matching lines @@
     last_missing_devices = []
 
   missing_devs = list(set(last_devices) - device_serials)
   new_missing_devs = list(set(missing_devs) - set(last_missing_devices))
 
   buildbot_slavename = os.environ.get('BUILDBOT_SLAVENAME')
   buildbot_buildername = os.environ.get('BUILDBOT_BUILDERNAME')
   buildbot_buildnumber = os.environ.get('BUILDBOT_BUILDNUMBER')
 
   if new_missing_devs and buildbot_slavename:
-    logging.info('new_missing_devs %s' % new_missing_devs)
+    logging.info('new_missing_devs %s', new_missing_devs)
     devices_missing_msg = '%d devices not detected.' % len(missing_devs)
     bb_annotations.PrintSummaryText(devices_missing_msg)
 
     from_address = 'chrome-bot@chromium.org'
     to_addresses = ['chrome-labs-tech-ticket@google.com',
                     'chrome-android-device-alert@google.com']
     cc_addresses = ['chrome-android-device-alert@google.com']
     subject = 'Devices offline on %s, %s, %s' % (
         buildbot_slavename, buildbot_buildername, buildbot_buildnumber)
     msg = ('Please reboot the following devices:\n%s' %
-           '\n'.join(map(str, new_missing_devs)))
+           '\n'.join(str(d) for d in new_missing_devs))
     SendEmail(from_address, to_addresses, cc_addresses, subject, msg)
 
   unauthorized_devices = adb_wrapper.AdbWrapper.Devices(
       desired_state='unauthorized')
   if unauthorized_devices:
     logging.info('unauthorized devices:')
     for ud in unauthorized_devices:
       logging.info('  %s', ud)
 
     if buildbot_slavename:
@@ skipping 37 matching lines @@
   # TODO(jbudorick): Transition from email alerts for every failure to a more
   # sustainable solution.
   msg_body = '\r\n'.join(['From: %s' % from_address,
                           'To: %s' % ', '.join(to_addresses),
                           'CC: %s' % ', '.join(cc_addresses),
                           'Subject: %s' % subject, '', msg])
   try:
     server = smtplib.SMTP('localhost')
     server.sendmail(from_address, to_addresses, msg_body)
     server.quit()
-  except Exception:
+  except Exception: # pylint: disable=broad-except
     logging.exception('Failed to send alert email.')
 
 
 def KillAllAdb():
   def GetAllAdb():
     for p in psutil.process_iter():
       try:
         if 'adb' in p.name:
           yield p
       except (psutil.NoSuchProcess, psutil.AccessDenied):
@@ skipping 103 matching lines @@
         zip(*[DeviceInfo(dev, args) for dev in devices]))
 
   # Write device info to file for buildbot info display.
   if os.path.exists('/home/chrome-bot'):
     with open('/home/chrome-bot/.adb_device_info', 'w') as f:
       for device in json_data:
         try:
           f.write('%s %s %s %.1fC %s%%\n' % (device['serial'], device['type'],
               device['build'], float(device['battery']['temperature']) / 10,
               device['battery']['level']))
-        except Exception:
+        except Exception: # pylint: disable=broad-except
           pass
 
   err_msg = CheckForMissingDevices(args, devices) or []
 
   unique_types = list(set(types))
   unique_builds = list(set(builds))
 
   bb_annotations.PrintMsg('Online devices: %d. Device types %s, builds %s'
                            % (len(devices), unique_types, unique_builds))
 
@@ skipping 52 matching lines @@
 
   if num_failed_devs == len(devices):
     return 2
 
   if not devices:
     return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())