Run skimage on the bots.

slave/skia_slave_scripts/run_decoding_tests.py

+#!/usr/bin/env python

[borenet, 2013/06/26 18:51:56]

I just realized - You'll need to create "android_run_decoding_tests.py" and
"chromeos_run_decoding_tests.py".  This is an unfortunate side effect of the way
this framework is set up.  They'll just be empty classes which inherit from both
Android/ChromeOSBuildStep and RunDecodingTests.  Take a look at
chromeos_run_gm.py for an example.

[scroggo, 2013/06/26 20:07:08]

Done.

How does the slave know where to find the right script? In factory.py
RunDecodingTests() adds the slave script "run_decoding_tests.py". Somewhere in
android_factory?

[borenet, 2013/06/26 20:23:14]

There's a "flavor" property for each build factory.  If it's not defined, the
vanilla script is used.  If it is defined, it's prepended to the name of the
script, eg for flavor "android", "android_run_decoding_tests.py" gets run.  This
is only for slave scripts which are run with AddFlavoredSlaveScript.

+# 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.
+
+""" Run the Skia skimage executable. """
+
+from build_step import BuildStep
+from utils.gs_utils import TIMESTAMP_COMPLETED_FILENAME
+import os
+import sys
+
+class RunDecodingTests(BuildStep):
+  def _Run(self):
+    image_dir = self._device_dirs.SKImageInDir()
+
+    # Skip the time stamp file.
+    images = [self.DevicePathJoin(image_dir, filename)
+              for filename in os.listdir(image_dir)
+              if not filename == TIMESTAMP_COMPLETED_FILENAME]
+    cmd = ['-r']
+    cmd.extend(images)
+
+    if self._gm_image_subdir is not None:
+      expectations_name = self._gm_image_subdir + '.json'
+
+      # Read expectations, which were downloaded/copied to the device.
+      expectations_file = self.DevicePathJoin(

[borenet, 2013/06/26 18:47:31]

Nice!

+        self._device_dirs.SKImageExpectedDir(),
+        expectations_name)
+
+      if self.DevicePathExists(expectations_file):
+        cmd.extend(['--readExpectationsPath', expectations_file])
+
+    # Write the expectations file, in case any did not match.
+    output_expectations_file = self.DevicePathJoin(
+        self._device_dirs.SKImageOutDir(),
+        expectations_name)
+
+    cmd.extend(['--createExpectationsPath', output_expectations_file])
+
+    # Draw any mismatches to the same folder as the output json.
+    cmd.extend(['--mismatchPath', self._device_dirs.SKImageOutDir()])
+
+    self.RunFlavoredCmd('skimage', cmd)
+
+
+if '__main__' == __name__:
+  sys.exit(BuildStep.RunBuildStep(RunDecodingTests))