src/tools/telemetry/telemetry/core/platform/profiler/android_prebuilt_profiler_helper.py

   1 # Copyright 2013 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 """Android-specific, downloads and installs pre-built profilers.
   6
   7 These pre-built binaries are stored in Cloud Storage, and they were
   8 built from AOSP source. Specific profilers using this helper class contain
   9 more detailed information.
  10 """
  11
  12 import os
  13
  14 from telemetry import decorators
  15 from telemetry.core import util
  16 from telemetry.page import cloud_storage
  17
  18
  19 _DEVICE_PROFILER_DIR = '/data/local/tmp/profilers/'
  20
  21
  22 def GetDevicePath(profiler_binary):
  23   return os.path.join(_DEVICE_PROFILER_DIR, os.path.basename(profiler_binary))
  24
  25
  26 def GetHostPath(profiler_binary):
  27   return os.path.join(util.GetTelemetryDir(),
  28                       'bin', 'prebuilt', 'android', profiler_binary)
  29
  30
  31 def GetIfChanged(profiler_binary):
  32   cloud_storage.GetIfChanged(GetHostPath(profiler_binary),
  33                              cloud_storage.PUBLIC_BUCKET)
  34
  35
  36 @decorators.Cache
  37 def InstallOnDevice(adb, profiler_binary):
  38   GetIfChanged(profiler_binary)
  39   adb.PushIfNeeded(GetHostPath(profiler_binary), GetDevicePath(profiler_binary))
  40   adb.RunShellCommand('chmod 777 ' + GetDevicePath(profiler_binary))