[Translate] Return before the new delegate is created if needed

build/android/pylib/android_commands.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.
 
 """Provides an interface to communicate with the device via the adb command.
 
 Assumes adb binary is currently on system path.
 """
 
 import collections
@@ skipping 47 matching lines @@
 KEYCODE_DPAD_UP = 19
 KEYCODE_DPAD_DOWN = 20
 KEYCODE_DPAD_RIGHT = 22
 KEYCODE_ENTER = 66
 KEYCODE_MENU = 82
 
 MD5SUM_DEVICE_FOLDER = constants.TEST_EXECUTABLE_DIR + '/md5sum/'
 MD5SUM_DEVICE_PATH = MD5SUM_DEVICE_FOLDER + 'md5sum_bin'
 MD5SUM_LD_LIBRARY_PATH = 'LD_LIBRARY_PATH=%s' % MD5SUM_DEVICE_FOLDER
 
+def GetEmulators():
+  """Returns a list of emulators.  Does not filter by status (e.g. offline).
+
+  Both devices starting with 'emulator' will be returned in below output:
+
+    * daemon not running. starting it now on port 5037 *
+    * daemon started successfully *
+    List of devices attached
+    027c10494100b4d7        device
+    emulator-5554   offline
+    emulator-5558   device
+  """
+  re_device = re.compile('^emulator-[0-9]+', re.MULTILINE)
+  devices = re_device.findall(cmd_helper.GetCmdOutput([constants.ADB_PATH,
+                                                       'devices']))
+  return devices
+
 
 def GetAVDs():
   """Returns a list of AVDs."""
   re_avd = re.compile('^[ ]+Name: ([a-zA-Z0-9_:.-]+)', re.MULTILINE)
   avds = re_avd.findall(cmd_helper.GetCmdOutput(['android', 'list', 'avd']))
   return avds
 
 
-def GetAttachedDevices(hardware=True, emulator=True, offline=False):
-  """Returns a list of attached, android devices and emulators.
+def GetAttachedDevices():
+  """Returns a list of attached, online android devices.
 
   If a preferred device has been set with ANDROID_SERIAL, it will be first in
-  the returned list. The arguments specify what devices to include in the list.
+  the returned list.
 
   Example output:
 
     * daemon not running. starting it now on port 5037 *
     * daemon started successfully *
     List of devices attached
     027c10494100b4d7        device
     emulator-5554   offline
-
-  Args:
-    hardware: Include attached actual devices that are online.
-    emulator: Include emulators (i.e. AVD's) currently on host.
-    offline: Include devices and emulators that are offline.
-
-  Returns: List of devices.
   """
-  adb_devices_output = cmd_helper.GetCmdOutput([constants.ADB_PATH, 'devices'])
-
   re_device = re.compile('^([a-zA-Z0-9_:.-]+)\tdevice$', re.MULTILINE)
-  online_devices = re_device.findall(adb_devices_output)
-
-  re_device = re.compile('^(emulator-[0-9]+)\tdevice', re.MULTILINE)
-  emulator_devices = re_device.findall(adb_devices_output)
-
-  re_device = re.compile('^([a-zA-Z0-9_:.-]+)\toffline$', re.MULTILINE)
-  offline_devices = re_device.findall(adb_devices_output)
-
-  devices = []
-  # First determine list of online devices (e.g. hardware and/or emulator).
-  if hardware and emulator:
-    devices = online_devices
-  elif hardware:
-    devices = [device for device in online_devices
-               if device not in emulator_devices]
-  elif emulator:
-    devices = emulator_devices
-
-  # Now add offline devices if offline is true
-  if offline:
-    devices = devices + offline_devices
-
+  devices = re_device.findall(cmd_helper.GetCmdOutput([constants.ADB_PATH,
+                                                       'devices']))
   preferred_device = os.environ.get('ANDROID_SERIAL')
   if preferred_device in devices:
     devices.remove(preferred_device)
     devices.insert(0, preferred_device)
   return devices
 
 
+def GetAttachedOfflineDevices():
+  """Returns a list of attached, offline android devices.
+
+  Returns: List of devices with status 'offline'.
+  """
+  re_device = re.compile('^([a-zA-Z0-9_:.-]+)\toffline$', re.MULTILINE)
+  return re_device.findall(cmd_helper.GetCmdOutput([constants.ADB_PATH,
+                                                    'devices']))
+
+
 def IsDeviceAttached(device):
   """Return true if the device is attached and online."""
   return device in GetAttachedDevices()
 
 
 def _GetFilesFromRecursiveLsOutput(path, ls_output, re_file, utc_offset=None):
   """Gets a list of files from `ls` command output.
 
   Python's os.walk isn't used because it doesn't work over adb shell.
 
@@ skipping 1323 matching lines @@
   """
   def __init__(self, output):
     self._output = output
 
   def write(self, data):
     data = data.replace('\r\r\n', '\n')
     self._output.write(data)
 
   def flush(self):
     self._output.flush()