[Android] Switch KillAll, StartActivity, and BroadcastIntent to DeviceUtils.

build/android/pylib/device/device_utils.py

 # Copyright 2014 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 a variety of device interactions based on adb.
 
 Eventually, this will be based on adb_wrapper.
 """
 # pylint: disable=W0613
 
+import sys
 import time
 
 import pylib.android_commands
 from pylib.device import adb_wrapper
 from pylib.device import decorators
 from pylib.device import device_errors
 from pylib.utils import apk_helper
 from pylib.utils import parallelizer
 
 _DEFAULT_TIMEOUT = 30
@@ skipping 96 matching lines @@
     """Restarts adbd with root privileges.
 
     Args:
       timeout: Same as for |IsOnline|.
       retries: Same as for |IsOnline|.
     Raises:
       CommandFailedError if root could not be enabled.
     """
     if not self.old_interface.EnableAdbRoot():
       raise device_errors.CommandFailedError(
-          ['adb', 'root'], 'Could not enable root.')
+          'Could not enable root.', device=str(self))
 
   @decorators.WithTimeoutAndRetriesFromInstance()
   def GetExternalStoragePath(self, timeout=None, retries=None):
     """Get the device's path to its SD card.
 
     Args:
       timeout: Same as for |IsOnline|.
       retries: Same as for |IsOnline|.
     Returns:
       The device's path to its SD card.
     """
     try:
       return self.old_interface.GetExternalStorage()
     except AssertionError as e:
       raise device_errors.CommandFailedError(
-          ['adb', 'shell', 'echo', '$EXTERNAL_STORAGE'], str(e))
+          str(e), device=str(self)), None, sys.exc_info()[2]
 
   @decorators.WithTimeoutAndRetriesFromInstance()
   def WaitUntilFullyBooted(self, wifi=False, timeout=None, retries=None):
     """Wait for the device to fully boot.
 
     This means waiting for the device to boot, the package manager to be
     available, and the SD card to be ready. It can optionally mean waiting
     for wifi to come up, too.
 
     Args:
@@ skipping 74 matching lines @@
     if device_path is not None:
       files_changed = self.old_interface.GetFilesChanged(
           apk_path, device_path, ignore_filenames=True)
       if len(files_changed) > 0:
         should_install = True
         if not reinstall:
           out = self.old_interface.Uninstall(package_name)
           for line in out.splitlines():
             if 'Failure' in line:
               raise device_errors.CommandFailedError(
-                  ['adb', 'uninstall', package_name], line.strip())
+                  line.strip(), device=str(self))
       else:
         should_install = False
     else:
       should_install = True
     if should_install:
       try:
         out = self.old_interface.Install(apk_path, reinstall=reinstall)
         for line in out.splitlines():
           if 'Failure' in line:
             raise device_errors.CommandFailedError(
-                ['adb', 'install', apk_path], line.strip())
+                line.strip(), device=str(self))
       except AssertionError as e:
         raise device_errors.CommandFailedError(
-            ['adb', 'install', apk_path], str(e))
+            str(e), device=str(self)), None, sys.exc_info()[2]
 
   @decorators.WithTimeoutAndRetriesFromInstance()
-  def RunShellCommand(self, cmd, check_return=False, root=False, timeout=None,
-                      retries=None):
+  def RunShellCommand(self, cmd, check_return=False, as_root=False,
+                      timeout=None, retries=None):
     """Run an ADB shell command.
 
     TODO(jbudorick) Switch the default value of check_return to True after
     AndroidCommands is gone.
 
     Args:
       cmd: A list containing the command to run on the device and any arguments.
       check_return: A boolean indicating whether or not the return code should
                     be checked.
+      as_root: A boolean indicating whether the shell command should be run
+               with root privileges.
       timeout: Same as for |IsOnline|.
       retries: Same as for |IsOnline|.
     Raises:
       CommandFailedError if check_return is True and the return code is nozero.
     Returns:
       The output of the command.
     """
-    return self._RunShellCommandImpl(cmd, check_return=check_return, root=root,
-                                     timeout=timeout)
+    return self._RunShellCommandImpl(cmd, check_return=check_return,
+                                     as_root=as_root, timeout=timeout)
 
-  def _RunShellCommandImpl(self, cmd, check_return=False, root=False,
+  def _RunShellCommandImpl(self, cmd, check_return=False, as_root=False,
                            timeout=None):
     """Implementation of RunShellCommand.
 
     This is split from RunShellCommand to allow other DeviceUtils methods to
     call RunShellCommand without spawning a new timeout thread.
 
     TODO(jbudorick) Remove the timeout parameter once this is no longer
     implemented via AndroidCommands.
 
     Args:
       cmd: Same as for |RunShellCommand|.
       check_return: Same as for |RunShellCommand|.
+      as_root: Same as for |RunShellCommand|.
       timeout: Same as for |IsOnline|.
     Raises:
       Same as for |RunShellCommand|.
     Returns:
       Same as for |RunShellCommand|.
     """
     if isinstance(cmd, list):
       cmd = ' '.join(cmd)
-    if root and not self.HasRoot():
+    if as_root and not self.HasRoot():
       cmd = 'su -c %s' % cmd
     if check_return:
       code, output = self.old_interface.GetShellCommandStatusAndOutput(
           cmd, timeout_time=timeout)
       if int(code) != 0:
-        raise device_errors.CommandFailedError(
-            cmd.split(), 'Nonzero exit code (%d)' % code)
+        raise device_errors.AdbCommandFailedError(
+            cmd.split(), 'Nonzero exit code (%d)' % code, device=str(self))
     else:
       output = self.old_interface.RunShellCommand(cmd, timeout_time=timeout)
     return output
 
+  @decorators.WithTimeoutAndRetriesFromInstance()
+  def KillAll(self, process_name, signum=9, as_root=False, blocking=False,
+              timeout=None, retries=None):
+    """Kill all processes with the given name on the device.
+
+    Args:
+      process_name: A string containing the name of the process to kill.
+      signum: An integer containing the signal number to send to kill. Defaults
+              to 9 (SIGKILL).
+      as_root: A boolean indicating whether the kill should be executed with
+               root priveleges.
+      blocking: A boolean indicating whether we should wait until all processes
+                with the given |process_name| are dead.
+      timeout: Same as for |IsOnline|.
+      retries: Same as for |IsOnline|.
+    Raises:
+      CommandFailedError if no process was killed.
+    """
+    pids = self.old_interface.ExtractPid(process_name)
+    if len(pids) == 0:
+      raise device_errors.CommandFailedError(
+          'No process "%s"' % process_name, device=str(self))
+
+    if blocking:
+      total_killed = self.old_interface.KillAllBlocking(
+          process_name, signum=signum, with_su=as_root, timeout_sec=timeout)
+    else:
+      total_killed = self.old_interface.KillAll(
+          process_name, signum=signum, with_su=as_root)
+    if total_killed == 0:
+      raise device_errors.CommandFailedError(
+          'Failed to kill "%s"' % process_name, device=str(self))
+
+  @decorators.WithTimeoutAndRetriesFromInstance()
+  def StartActivity(self, intent, blocking=False, trace_file_name=None,
+                    force_stop=False, timeout=None, retries=None):
+    """Start package's activity on the device.
+
+    Args:
+      intent: An Intent to send.
+      blocking: A boolean indicating whether we should wait for the activity to
+                finish launching.
+      trace_file_name: If present, a string that both indicates that we want to
+                       profile the activity and contains the path to which the
+                       trace should be saved.
+      force_stop: A boolean indicating whether we should stop the activity
+                  before starting it.
+      timeout: Same as for |IsOnline|.
+      retries: Same as for |IsOnline|.
+    Raises:
+      CommandFailedError if the activity could not be started.
+    """
+    single_category = (intent.category[0] if isinstance(intent.category, list)
+                                          else intent.category)
+    output = self.old_interface.StartActivity(
+        intent.package, intent.activity, wait_for_completion=blocking,
+        action=intent.action, category=single_category, data=intent.data,
+        extras=intent.extras, trace_file_name=trace_file_name,
+        force_stop=force_stop, flags=intent.flags)
+    for l in output:
+      if l.startswith('Error:'):
+        raise device_errors.CommandFailedError(l, device=str(self))
+
+  @decorators.WithTimeoutAndRetriesFromInstance()
+  def BroadcastIntent(self, intent, timeout=None, retries=None):
+    """Send a broadcast intent.
+
+    Args:
+      intent: An Intent to broadcast.
+      timeout: Same as for |IsOnline|.
+      retries: Same as for |IsOnline|.
+    """
+    package, old_intent = intent.action.rsplit('.', 1)
+    if intent.extras is None:
+      args = []
+    else:
+      args = ['-e %s%s' % (k, ' "%s"' % v if v else '')
+              for k, v in intent.extras.items() if len(k) > 0]
+    self.old_interface.BroadcastIntent(package, old_intent, *args)
+
   def __str__(self):
     """Returns the device serial."""
     return self.old_interface.GetDevice()
 
   @staticmethod
   def parallel(devices=None, async=False):
     """Creates a Parallelizer to operate over the provided list of devices.
 
     If |devices| is either |None| or an empty list, the Parallelizer will
     operate over all attached devices.
 
     Args:
       devices: A list of either DeviceUtils instances or objects from
                from which DeviceUtils instances can be constructed. If None,
                all attached devices will be used.
       async: If true, returns a Parallelizer that runs operations
              asynchronously.
     Returns:
       A Parallelizer operating over |devices|.
     """
     if not devices or len(devices) == 0:
       devices = pylib.android_commands.GetAttachedDevices()
     parallelizer_type = (parallelizer.Parallelizer if async
                          else parallelizer.SyncParallelizer)
     return parallelizer_type([
         d if isinstance(d, DeviceUtils) else DeviceUtils(d)
         for d in devices])