Move git-cl into depot_tools....

git_cl/PRESUBMIT.py

Index: git_cl/PRESUBMIT.py
===================================================================
--- git_cl/PRESUBMIT.py	(revision 0)
+++ git_cl/PRESUBMIT.py	(revision 0)
@@ -0,0 +1,124 @@
+# Copyright (c) 2010 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.
+
+"""Top-level presubmit script for depot tools.
+
+See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
+details on the presubmit API built into gcl.
+"""
+
+
+def CheckChangeOnUpload(input_api, output_api):
+  return RunTests(input_api, output_api)
+
+
+def CheckChangeOnCommit(input_api, output_api):
+  return RunTests(input_api, output_api)
+
+
+def RunTests(input_api, output_api):
+  """Run all the shells scripts in the directory test.
+
+  Also verify the GAE python SDK is available, fetches Rietveld if necessary and
+  start a test instance to test against.
+  """
+  # They are not exposed from InputApi.
+  from os import listdir, pathsep
+  import socket
+  import time
+
+  # Shortcuts
+  join = input_api.os_path.join
+  error = output_api.PresubmitError
+
+  # Paths
+  sdk_path = input_api.os_path.abspath(join('..', '..', 'google_appengine'))
+  dev_app = join(sdk_path, 'dev_appserver.py')
+  rietveld = join('test', 'rietveld')
+  django_path = join(rietveld, 'django')
+
+  # Generate a friendly environment.
+  env = input_api.environ.copy()
+  env['LANGUAGE'] = 'en'
+  if env.get('PYTHONPATH'):
+    env['PYTHONPATH'] = (env['PYTHONPATH'].rstrip(pathsep) + pathsep +
+        django_path)
+  else:
+    env['PYTHONPATH'] = django_path
+
+  def call(*args, **kwargs):
+    kwargs['env'] = env
+    x = input_api.subprocess.Popen(*args, **kwargs)
+    x.communicate()
+    return x.returncode == 0
+
+  def test_port(port):
+    s = socket.socket()
+    try:
+      return s.connect_ex(('127.0.0.1', port)) == 0
+    finally:
+      s.close()
+
+  # First, verify the Google AppEngine SDK is available.
+  if not input_api.os_path.isfile(dev_app):
+    return [error('Install google_appengine sdk in %s' % sdk_path)]
+
+  # Second, checkout rietveld and django if not available.
+  if not input_api.os_path.isdir(rietveld):
+    print('Checking out rietveld...')
+    if not call(['svn', 'co', '-q',
+                 'http://rietveld.googlecode.com/svn/trunk@563',
+                 rietveld]):
+      return [error('Failed to checkout rietveld')]
+  if not input_api.os_path.isdir(django_path):
+    print('Checking out django...')
+    if not call(
+        ['svn', 'co', '-q',
+         'http://code.djangoproject.com/'
+             'svn/django/branches/releases/1.0.X/django@13637',
+         django_path]):
+      return [error('Failed to checkout django')]
+
+
+  # Test to find an available port starting at 8080.
+  port = 8080
+  while test_port(port) and port < 65000:
+    port += 1
+  if port == 65000:
+    return [error('Having issues finding an available port')]
+
+  verbose = False
+  if verbose:
+    stdout = None
+    stderr = None
+  else:
+    stdout = input_api.subprocess.PIPE
+    stderr = input_api.subprocess.PIPE
+  output = []
+  test_server = input_api.subprocess.Popen(
+      [dev_app, rietveld, '--port=%d' % port,
+       '--datastore_path=' + join(rietveld, 'tmp.db'), '-c'],
+      stdout=stdout, stderr=stderr, env=env)
+  try:
+    # Loop until port 127.0.0.1:port opens or the process dies.
+    while not test_port(port):
+      test_server.poll()
+      if test_server.returncode is not None:
+        output.append(error('Test rietveld instance failed early'))
+        break
+      time.sleep(0.001)
+
+    test_path = input_api.os_path.abspath('test')
+    for test in listdir(test_path):
+      # push-from-logs and rename fails for now. Remove from this list once they
+      # work.
+      if (test in ('push-from-logs.sh', 'rename.sh', 'test-lib.sh') or
+          not test.endswith('.sh')):
+        continue
+      print('Running %s' % test)
+      if not call([join(test_path, test)], cwd=test_path, stdout=stdout):
+        output.append(error('%s failed' % test))
+  finally:
+    test_server.kill()
+  return output