Added `gclient hookinfo`. This will be used to convert hooks into

tests/gclient_test.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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.
 
 """Unit tests for gclient.py.
 
 See gclient_smoketest.py for integration tests.
 """
 
@@ skipping 228 matching lines @@
             gclient.GClientKeywords.FileImpl('url'), None, None, None, None,
             'DEPS', True),
         ],
         [])
     # Make sure __str__() works fine.
     # pylint: disable=W0212
     obj.dependencies[0]._file_list.append('foo')
     str_obj = str(obj)
     self.assertEquals(471, len(str_obj), '%d\n%s' % (len(str_obj), str_obj))
 
+  def testHooks(self):
+    topdir = self.root_dir
+    gclient_fn = os.path.join(topdir, '.gclient')
+    fh = open(gclient_fn, 'w')
+    print >> fh, 'solutions = [{"name":"top","url":"svn://svn.top.com/top"}]'
+    fh.close()
+    subdir_fn = os.path.join(topdir, 'top')
+    os.mkdir(subdir_fn)
+    deps_fn = os.path.join(subdir_fn, 'DEPS')
+    fh = open(deps_fn, 'w')
+    hooks = [{'pattern':'.', 'action':['cmd1', 'arg1', 'arg2']}]
+    print >> fh, 'hooks = %s' % repr(hooks)
+    fh.close()
+
+    fh = open(os.path.join(subdir_fn, 'fake.txt'), 'w')
+    print >> fh, 'bogus content'
+    fh.close()
+
+    os.chdir(topdir)
+
+    parser = gclient.Parser()
+    options, _ = parser.parse_args([])
+    options.force = True
+    client = gclient.GClient.LoadCurrentConfig(options)
+    work_queue = gclient_utils.ExecutionQueue(options.jobs, None)
+    for s in client.dependencies:
+      work_queue.enqueue(s)
+    work_queue.flush({}, None, [], options=options)
+    self.assertEqual(client.GetHooks(options), [x['action'] for x in hooks])
+
 
 if __name__ == '__main__':
   sys.stdout = gclient_utils.MakeFileAutoFlush(sys.stdout)
   sys.stdout = gclient_utils.MakeFileAnnotated(sys.stdout, include_zero=True)
   sys.stderr = gclient_utils.MakeFileAutoFlush(sys.stderr)
   sys.stderr = gclient_utils.MakeFileAnnotated(sys.stderr, include_zero=True)
   logging.basicConfig(
       level=[logging.ERROR, logging.WARNING, logging.INFO, logging.DEBUG][
         min(sys.argv.count('-v'), 3)],
       format='%(relativeCreated)4d %(levelname)5s %(module)13s('
               '%(lineno)d) %(message)s')
   unittest.main()