1 files changed, 129 insertions, 0 deletions
diff --git a/chromium/chrome/browser/resources/chromeos/chromevox/tools/check_chromevox.py b/chromium/chrome/browser/resources/chromeos/chromevox/tools/check_chromevox.py
new file mode 100755
index 00000000000..d2b3f9abda7
--- /dev/null
+++ b/chromium/chrome/browser/resources/chromeos/chromevox/tools/check_chromevox.py
@@ -0,0 +1,129 @@
+#!/usr/bin/env python
+
+# Copyright 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.
+
+'''Uses the closure compiler to check the ChromeVox javascript files.
+
+With no arguments, checks all ChromeVox scripts.  If any arguments are
+specified, only scripts that include any of the specified files will be
+compiled.  A useful argument list is the output of the command
+'git diff --name-only --relative'.
+'''
+
+import optparse
+import os
+import re
+import sys
+
+from multiprocessing import pool
+
+from jsbundler import Bundle, CalcDeps, ReadSources
+from jscompilerwrapper import RunCompiler
+
+_SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
+_CHROME_SOURCE_DIR = os.path.normpath(
+    os.path.join(_SCRIPT_DIR, *[os.path.pardir] * 6))
+
+
+def CVoxPath(path='.'):
+  '''Converts a path relative to the top-level chromevox directory to a
+  path relative to the current directory.
+  '''
+  return os.path.relpath(os.path.join(_SCRIPT_DIR, '..', path))
+
+
+# Externs common to many ChromeVox scripts.
+_COMMON_EXTERNS = [
+    CVoxPath('common/externs.js'),
+    CVoxPath('common/chrome_extension_externs.js'),
+    CVoxPath('chromevox/background/externs.js'),
+    CVoxPath('chromevox/injected/externs.js'),
+    CVoxPath('liblouis_nacl/externs.js'),
+    CVoxPath('host/chrome/externs.js')]
+
+# List of top-level scripts and externs that we can check.
+_TOP_LEVEL_SCRIPTS = [
+    [[CVoxPath('chromevox/background/kbexplorer_loader.js')],
+     [CVoxPath('common/chrome_extension_externs.js')]],
+    [[CVoxPath('chromevox/background/loader.js')], _COMMON_EXTERNS],
+    [[CVoxPath('chromevox/background/options_loader.js')], _COMMON_EXTERNS],
+    [[CVoxPath('chromevox/injected/loader.js')], _COMMON_EXTERNS],
+    ]
+
+
+def _Compile(js_files, externs):
+  try:
+    return RunCompiler(js_files, externs)
+  except KeyboardInterrupt:
+    return (False, 'KeyboardInterrupt')
+
+
+def CheckChromeVox(changed_files=None):
+  if changed_files is not None:
+    changed_files_set = frozenset(
+        (os.path.relpath(path) for path in changed_files))
+    if len(changed_files_set) == 0:
+      return (True, '')
+  else:
+    changed_files_set = None
+  ret_success = True
+  ret_output = ''
+  roots = [CVoxPath(),
+           os.path.relpath(
+               os.path.join(
+                   _CHROME_SOURCE_DIR,
+                   'chrome/third_party/chromevox/third_party/closure-library/'
+                   'closure/goog'))]
+  sources = ReadSources(roots, need_source_text=True,
+                        exclude=[re.compile('testing')])
+  work_pool = pool.Pool(len(_TOP_LEVEL_SCRIPTS))
+  try:
+    results = []
+    for top_level in _TOP_LEVEL_SCRIPTS:
+      tl_files, externs = top_level
+      bundle = Bundle()
+      CalcDeps(bundle, sources, tl_files)
+      bundle.Add((sources[name] for name in tl_files))
+      ordered_paths = list(bundle.GetInPaths())
+      if (changed_files_set is not None and
+          changed_files_set.isdisjoint(ordered_paths + externs)):
+        continue
+      print 'Compiling %s' % ','.join(tl_files)
+      results.append([tl_files,
+                      work_pool.apply_async(
+                          _Compile,
+                          args=[ordered_paths, externs])])
+    for result in results:
+      tl_files = result[0]
+      success, output = result[1].get()
+      if not success:
+        ret_output += '\nFrom compiling %s:\n%s\n' % (','.join(tl_files),
+                                                      output)
+        ret_success = False
+    work_pool.close()
+  except:
+    work_pool.terminate()
+    raise
+  finally:
+    work_pool.join()
+  return (ret_success, ret_output)
+
+
+def main():
+  parser = optparse.OptionParser(description=__doc__)
+  parser.usage = '%prog [<changed_file>...]'
+  _, args = parser.parse_args()
+
+  changed_paths = None
+  if len(args) > 0:
+    changed_paths = (os.path.relpath(p) for p in args)
+  success, output = CheckChromeVox(changed_paths)
+  if len(output) > 0:
+    print output
+  return int(not success)
+
+
+if __name__ == '__main__':
+  sys.exit(main())