Run the webkit layout tests under swarming on linux_chromium_rel_ng.

testing/scripts/run_locally_swarmed_webkit_layout_tests.py

Index: testing/scripts/run_locally_swarmed_webkit_layout_tests.py
diff --git a/testing/scripts/run_locally_swarmed_webkit_layout_tests.py b/testing/scripts/run_locally_swarmed_webkit_layout_tests.py
new file mode 100755
index 0000000000000000000000000000000000000000..943f714d5891174fd1632617989af19bad6a0eff
--- /dev/null
+++ b/testing/scripts/run_locally_swarmed_webkit_layout_tests.py
@@ -0,0 +1,97 @@
+#!/usr/bin/env python

[mithro, 2017/01/31 23:51:42]

This is emulating what the recipes code should be doing right?

[Dirk Pranke, 2017/02/01 01:32:51]

Correct. This is a transitional script that I was using for testing, but we
don't want this in the long run.

+# 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 argparse
+import json
+import os
+import shutil
+import sys
+import tempfile
+
+
+import common
+
+# Add src/testing/ into sys.path for importing xvfb.
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
+import xvfb
+
+
+def main_run(args):
+  os.chdir('src/out/Release')

[qyearsley, 2017/01/13 01:09:12]

Note, this doesn't matter, but when running this script, this assumes you're in
the parent of the src directory; you could also change this to

os.chdir(os.path.join(os.path.dirname(__file__), '..', '..', 'out', 'Release'))

+
+  rc = common.run_command([
+      sys.executable,
+      '../../tools/mb/mb.py',
+      'isolate',
+      '//out/Release',
+      'webkit_layout_tests_exparchive',
+  ])
+  if rc:
+    return rc
+
+  rc = common.run_command([
+      '../../tools/luci-go/linux64/isolate',
+      'exparchive',
+      '-verbose',
+      '-isolate=webkit_layout_tests_exparchive.isolate',
+      '-isolated=webkit_layout_tests_exparchive.isolated',
+      '-isolate-server=https://isolateserver.appspot.com',
+  ])
+  if rc:
+    return rc
+
+  blamelist = os.environ.get('BUILDBOT_BLAMELIST', [])
+  if (len(blamelist) == 1 and
+      os.environ.get('BUILDBOT_MASTERNAME').startswith('tryserver')):
+    user_args = ['--user', blamelist[0]]
+  else:
+    user_args = []
+
+  if isinstance(args.args, dict):
+    num_shards = args.args.get('shards', 1)
+  else:
+    num_shards = 1
+
+  try:
+    tmpdir = tempfile.mkdtemp('run_locally_swarmed_webkit_layout_tests_results',
+                              dir='.')
+    rc = common.run_command([
+        sys.executable,
+        '../../tools/swarming_client/swarming.py',
+        'run',
+        '-v',
+        ] + user_args + [
+        '-d', 'pool', 'Chrome',
+        '-d', 'os', 'Ubuntu-12.04',
+        '-d', 'gpu', 'none',
+        '--swarming', 'https://chromium-swarm.appspot.com',
+        '--isolate-server', 'https://isolateserver.appspot.com',
+        '--shards', str(num_shards),
+        '--task-output-dir', tmpdir,
+        'webkit_layout_tests_exparchive.isolated',
+        '--',
+        '--isolated-script-test-output',
+        '${ISOLATED_OUTDIR}/output.json',
+    ])
+  finally:
+    # TODO: Merge the output and return real failures.
+    shutil.rmtree(tmpdir, ignore_errors=True)
+
+  json.dump({
+    'valid': True,
+    'failures': ['Failure'] if rc else [],
+  }, args.output)
+
+
+def main_compile_targets(args):
+  json.dump(["locally_swarmed_webkit_layout_tests"], args.output)
+
+
+if __name__ == '__main__':
+  funcs = {
+    'run': main_run,
+    'compile_targets': main_compile_targets,
+  }
+  sys.exit(common.run_script(sys.argv[1:], funcs))