Skia Appurify bot: write nanobench flags to an asset file

scripts/slave/recipe_modules/skia/appurify_flavor.py

 # Copyright 2015 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.
 
 
 import android_devices
 import copy
 import default_flavor
 
 
 """Appurify flavor utils, used for building and running tests in Appurify."""
 
 
 class AppurifyFlavorUtils(default_flavor.DefaultFlavorUtils):
   def __init__(self, skia_api):
     super(AppurifyFlavorUtils, self).__init__(skia_api)
     self.device = self._skia_api.builder_spec['device_cfg']
     slave_info = android_devices.SLAVE_INFO.get(
         self._skia_api.slave_name,
         android_devices.SLAVE_INFO['default'])
     self.android_tools = self._skia_api.m.path['slave_build'].join(
         'skia', 'platform_tools', 'android')
     self.android_bin = self.android_tools.join('bin')
     self.apk_dir = self.android_tools.join('apps', 'visualbench', 'build',
                                            'outputs', 'apk')
+    self.assets_dir = self.android_tools.join('apps', 'visualbench', 'src',
+                                              'main', 'assets')
     self._android_sdk_root = slave_info.android_sdk_root
     self._default_env = {'ANDROID_SDK_ROOT': self._android_sdk_root,
                          'ANDROID_HOME': self._android_sdk_root,
                          'SKIA_ANDROID_VERBOSE_SETUP': 1}
 
   def step(self, name, cmd, env=None, **kwargs):
     # Extract the json file name from the command; ignore the rest.
     json_file = None
     for i, arg in enumerate(cmd):
       if str(arg) == '--outResultsFile':
@@ skipping 39 matching lines @@
           self._skia_api.perf_data_dir.join(json_file))
     return result
 
   def compile(self, target):
     """Build the given target."""
     env = dict(self._default_env)
     ccache = self._skia_api.ccache()
     if ccache:
       env['ANDROID_MAKE_CCACHE'] = ccache
 
+    # Write the nanobench flags to a file inside the APK.
+    args = list(self._skia_api.nanobench_flags)
+    args.extend(['--outResultsFile', '/sdcard/skia_results/visualbench.json'])
+    self.create_clean_host_dir(self.assets_dir)
+    self._skia_api._writefile(self.assets_dir.join('nanobench_flags.txt'),
+                              ' '.join(args))
+
     cmd = [self.android_bin.join('android_ninja'), target, '-d', self.device]
     self._skia_api.run(self._skia_api.m.step, 'build %s' % target, cmd=cmd,
                        env=env, cwd=self._skia_api.m.path['checkout'])