Beginnings of some msvs_... emulation (windows ninja)

pylib/gyp/input.py

-# Copyright (c) 2011 Google Inc. All rights reserved.
+# Copyright (c) 2012 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from compiler.ast import Const
 from compiler.ast import Dict
 from compiler.ast import Discard
 from compiler.ast import List
 from compiler.ast import Module
 from compiler.ast import Node
 from compiler.ast import Stmt
@@ skipping 2133 matching lines @@
   '''Validates the inputs to the actions in a target.'''
   target_name = target_dict.get('target_name')
   actions = target_dict.get('actions', [])
   for action in actions:
     action_name = action.get('action_name')
     if not action_name:
       raise Exception("Anonymous action in target %s.  "
                       "An action must have an 'action_name' field." %
                       target_name)
     inputs = action.get('inputs', [])
+    action_command = action.get('action')
+    if action_command and not action_command[0]:
+      raise Exception("Empty action as command in target %s." % target_name)
 
 
 def ValidateRunAsInTarget(target, target_dict, build_file):
   target_name = target_dict.get('target_name')
   run_as = target_dict.get('run_as')
   if not run_as:
     return
   if not isinstance(run_as, dict):
     raise Exception("The 'run_as' in target %s from file %s should be a "
                     "dictionary." %
@@ skipping 208 matching lines @@
     ValidateRunAsInTarget(target, target_dict, build_file)
     ValidateActionsInTarget(target, target_dict, build_file)
 
   # Generators might not expect ints.  Turn them into strs.
   TurnIntIntoStrInDict(data)
 
   # TODO(mark): Return |data| for now because the generator needs a list of
   # build files that came in.  In the future, maybe it should just accept
   # a list, and not the whole data dict.
   return [flat_list, targets, data]