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

gclient.py

Index: gclient.py
===================================================================
--- gclient.py	(revision 119551)
+++ gclient.py	(working copy)
@@ -1080,6 +1080,23 @@
         print('%s: %s' % (x, entries[x]))
     logging.info(str(self))
 
+  def HookInfo(self):
+    work_queue = gclient_utils.ExecutionQueue(self._options.jobs, None)
+    for s in self.dependencies:
+      work_queue.enqueue(s)
+    work_queue.flush({}, None, [], options=self._options)
+    hooks = []
+    def _f(*args, **kwargs):
+      cwd = kwargs['cwd'][len(self.root.root_dir)+1:]
+      if not cwd:
+        cwd = '.'
+      hooks.append({'command': list(*args), 'cwd': cwd})
+    tmp = gclient_utils.CheckCallAndFilterAndHeader
+    gclient_utils.CheckCallAndFilterAndHeader = _f

[M-A Ruel, 2012/01/28 02:15:18]

:/ I'd rather have you pass an argument to RunHooksRecursively(), then
_RunHookAction() than monkey patch here.

[szager, 2012/01/30 18:47:07]

OK, less monkey more patch.

+    self.RunHooksRecursively(self._options)
+    gclient_utils.CheckCallAndFilterAndHeader = tmp
+    return hooks
+
   def ParseDepsFile(self):
     """No DEPS to parse for a .gclient file."""
     raise gclient_utils.Error('Internal error')
@@ -1423,6 +1440,17 @@
   return 0
 
 
+def CMDhookinfo(parser, args):
+  """Output the hooks that would be run by `gclient runhooks`"""
+
+  (options, args) = parser.parse_args(args)
+  client = GClient.LoadCurrentConfig(options)
+  if not client:
+    raise gclient_utils.Error('client not configured; see \'gclient config\'')
+  print client.HookInfo()
+  return 0
+
+
 def Command(name):
   return getattr(sys.modules[__name__], 'CMD' + name, None)