Add recreate_skps script

tools/skp/recreate_skps.py

+#!/usr/bin/env python
+# Copyright (c) 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.
+
+
+"""Run the webpages_playback automation script."""
+
+
+import os
+import subprocess
+import sys
+
+sys.path.insert(0, os.getcwd())
+
+from common.py.utils import gs_utils
+from common.py.utils import shell_utils
+
+
+SKP_VERSION_FILE = 'SKP_VERSION'
+
+
+def _get_skp_version():
+  """Find an unused SKP version."""
+  current_skp_version = None
+  with open(SKP_VERSION_FILE) as f:
+    current_skp_version = int(f.read().rstrip())
+
+  # Find the first SKP version which has no uploaded SKPs.
+  new_version = current_skp_version + 1
+  while True:
+    gs_path = 'playback_%d/skps' % new_version
+    if not gs_utils.GSUtils().does_storage_object_exist('chromium-skia-gm',
+                                                        gs_path):
+      return new_version
+    new_version += 1
+
+
+def main(chrome_src_path, browser_executable):
+  browser_executable = os.path.realpath(browser_executable)
+  skp_version = _get_skp_version()
+  print 'SKP_VERSION=%d' % skp_version
+
+  if os.environ.get('CHROME_HEADLESS'):
+    # Start Xvfb if running on a bot.
+    try:
+      shell_utils.run('sudo Xvfb :0 -screen 0 1280x1024x24 &', shell=True)
+    except Exception:
+      # It is ok if the above command fails, it just means that DISPLAY=:0
+      # is already up.
+      pass
+
+  upload_dir = 'playback_%d' % skp_version
+  webpages_playback_cmd = [
+    'python', os.path.join(os.path.dirname(os.path.realpath(__file__)),
+                           'webpages_playback.py'),
+    '--page_sets', 'all',
+    '--browser_executable', browser_executable,
+    '--non-interactive',
+    '--upload_to_gs',
+    '--alternate_upload_dir', upload_dir,
+    '--chrome_src_path', chrome_src_path,
+  ]
+
+  try:
+    shell_utils.run(webpages_playback_cmd)
+  finally:
+    # Clean up any leftover browser instances. This can happen if there are
+    # telemetry crashes, processes are not always cleaned up appropriately by
+    # the webpagereplay and telemetry frameworks.
+    procs = subprocess.check_output(['ps', 'ax'])
+    for line in procs.splitlines():
+      if browser_executable in line:
+        pid = line.strip().split(' ')[0]
+        if pid != str(os.getpid()):
+          try:
+            shell_utils.run(['kill', '-9', pid])
+          except shell_utils.CommandFailedException as e:
+            print e
+        else:
+          print 'Refusing to kill self.'
+
+  print 'writing %s: %s' % (SKP_VERSION_FILE, skp_version)
+  with open(SKP_VERSION_FILE, 'w') as f:
+    f.write(str(skp_version))
+
+
+if '__main__' == __name__:
+  if len(sys.argv) != 3:
+    print >> sys.stderr, 'USAGE: %s <chrome src path> <browser executable>'
+    sys.exit(1)
+  main(*sys.argv[1:])