Add "skp" asset

infra/bots/assets/skp/create.py

+#!/usr/bin/env python
+#
+# Copyright 2016 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+"""Create the SKP asset."""
+
+
+import argparse
+import common
+import os
+import shutil
+import subprocess
+import utils
+
+
+SKIA_TOOLS = os.path.join(common.INFRA_BOTS_DIR, os.pardir, os.pardir, 'tools')
+
+
+def create_asset(chrome_src_path, browser_executable, target_dir):
+  """Create the asset."""
+  browser_executable = os.path.realpath(browser_executable)
+  chrome_src_path = os.path.realpath(chrome_src_path)
+  target_dir = os.path.realpath(target_dir)
+
+  if not os.path.exists(target_dir):
+    os.makedirs(target_dir)
+
+  with utils.tmp_dir():
+    if os.environ.get('CHROME_HEADLESS'):
+      # Start Xvfb if running on a bot.
+      try:
+        subprocess.Popen(['sudo', 'Xvfb', ':0', '-screen', '0', '1280x1024x24'])
+      except Exception:
+        # It is ok if the above command fails, it just means that DISPLAY=:0
+        # is already up.
+        pass
+
+    webpages_playback_cmd = [
+      'python', os.path.join(SKIA_TOOLS, 'skp', 'webpages_playback.py'),
+      '--page_sets', 'all',
+      '--browser_executable', browser_executable,
+      '--non-interactive',
+      '--output_dir', os.getcwd(),
+      '--chrome_src_path', chrome_src_path,
+    ]
+    try:
+      subprocess.check_call(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()) and not 'python' in line:
+            try:
+              subprocess.check_call(['kill', '-9', pid])
+            except subprocess.CalledProcessError as e:
+              print e
+          else:
+            print 'Refusing to kill self.'
+    src = os.path.join(os.getcwd(), 'playback', 'skps')
+    for f in os.listdir(src):
+      if f.endswith('.skp'):
+        shutil.copyfile(os.path.join(src, f), os.path.join(target_dir, f))
+
+
+def main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--target_dir', '-t', required=True)
+  parser.add_argument('--chrome_src_path', '-c', required=True)
+  parser.add_argument('--browser_executable', '-e', required=True)
+  args = parser.parse_args()
+  create_asset(args.chrome_src_path, args.browser_executable, args.target_dir)
+
+
+if __name__ == '__main__':
+  main()