If install of test apk fails because of storage, wipe device data.

build/android/provision_devices.py

 #!/usr/bin/env python
 #
 # Copyright (c) 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.
 
 """Provisions Android devices with settings required for bots.
 
 Usage:
   ./provision_devices.py [-d <device serial number>]
 """
 
 import logging
 import optparse
 import os
 import re
 import subprocess
 import sys
 import time
 
 from pylib import android_commands
 from pylib import constants
 from pylib import device_settings
+from pylib.cmd_helper import GetCmdOutput
 
 
 def KillHostHeartbeat():
   ps = subprocess.Popen(['ps', 'aux'], stdout = subprocess.PIPE)
   stdout, _ = ps.communicate()
   matches = re.findall('\\n.*host_heartbeat.*', stdout)
   for match in matches:
     print 'An instance of host heart beart running... will kill'
     pid = re.findall('(\d+)', match)[1]
     subprocess.call(['kill', str(pid)])
@@ skipping 42 matching lines @@
       'ro.audio.silent=1',
       'ro.setupwizard.mode=DISABLED',
       ]
   adb.SetProtectedFileContents(android_commands.LOCAL_PROPERTIES_PATH,
                                '\n'.join(local_props))
   # Android will not respect the local props file if it is world writable.
   adb.RunShellCommandWithSU('chmod 644 %s' %
                             android_commands.LOCAL_PROPERTIES_PATH)
 
 
+def WipeDeviceData(device):
+  """Wipes data from device, keeping only the adb_keys for authorization.
+
+  After wiping data on a device that has been authorized, adb can still
+  communicate with the device, but after reboot the device will need to be
+  re-authorized because the adb keys file is stored in /data/misc/adb/.
+  Thus, before reboot the adb_keys file is rewritten so the device does not need
+  to be re-authorized.
+
+  Arguments:
+    device: the device to wipe
+  """
+  android_cmd = android_commands.AndroidCommands(device)
+  device_authorized = android_cmd.FileExistsOnDevice(constants.ADB_KEYS_FILE)
+  if device_authorized:
+    adb_keys = android_cmd.RunShellCommandWithSU(
+      'cat %s' % constants.ADB_KEYS_FILE)[0]
+  android_cmd.RunShellCommandWithSU('wipe data')
+  if device_authorized:
+    path_list = constants.ADB_KEYS_FILE.split('/')
+    dir_path = '/'.join(path_list[:len(path_list)-1])
+    android_cmd.RunShellCommandWithSU('mkdir -p %s' % dir_path)
+    adb_keys = android_cmd.RunShellCommand(
+      'echo %s > %s' % (adb_keys, constants.ADB_KEYS_FILE))
+  android_cmd.Reboot()
+
+
 def ProvisionDevices(options):
   if options.device is not None:
     devices = [options.device]
   else:
     devices = android_commands.GetAttachedDevices()
   for device in devices:
     android_cmd = android_commands.AndroidCommands(device)
+    install_output = GetCmdOutput(
+      ['%s/build/android/adb_install_apk.py' % constants.DIR_SOURCE_ROOT,
+       '--apk',
+       '%s/build/android/CheckInstallApk-debug.apk' % constants.DIR_SOURCE_ROOT
+       ])
+    failure_string = 'Failure [INSTALL_FAILED_INSUFFICIENT_STORAGE]'
+    if failure_string in install_output:
+      WipeDeviceData(device)
     _ConfigureLocalProperties(android_cmd)
     device_settings.ConfigureContentSettingsDict(
         android_cmd, device_settings.DETERMINISTIC_DEVICE_SETTINGS)
     # TODO(tonyg): We eventually want network on. However, currently radios
     # can cause perfbots to drain faster than they charge.
     if 'perf' in os.environ.get('BUILDBOT_BUILDERNAME', '').lower():
       device_settings.ConfigureContentSettingsDict(
           android_cmd, device_settings.NETWORK_DISABLED_SETTINGS)
     android_cmd.RunShellCommandWithSU('date -u %f' % time.time())
   if options.auto_reconnect:
@@ skipping 15 matching lines @@
 
   if args:
     print >> sys.stderr, 'Unused args %s' % args
     return 1
 
   ProvisionDevices(options)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))