Add an option to prune unwanted targets

pylib/gyp/common.py

 # 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 __future__ import with_statement
 
 import errno
 import filecmp
 import os.path
 import re
@@ skipping 26 matching lines @@
 def ExceptionAppend(e, msg):
   """Append a message to the given exception's message."""
   if not e.args:
     e.args = (msg,)
   elif len(e.args) == 1:
     e.args = (str(e.args[0]) + ' ' + msg,)
   else:
     e.args = (str(e.args[0]) + ' ' + msg,) + e.args[1:]
 
 
+def FindQualifiedTargets(target, qualified_list):
+  """
+  Given a list of qualified targets, return the qualified targets for the
+  specified |target|.
+  """
+  return [t for t in qualified_list if ParseQualifiedTarget(t)[1] == target]
+
+
 def ParseQualifiedTarget(target):
   # Splits a qualified target into a build file, target name and toolset.
 
   # NOTE: rsplit is used to disambiguate the Windows drive letter separator.
   target_split = target.rsplit(':', 1)
   if len(target_split) == 2:
     [build_file, target] = target_split
   else:
     build_file = None
 
@@ skipping 432 matching lines @@
       return
     visited.add(node)
     visiting.add(node)
     for neighbor in get_edges(node):
       Visit(neighbor)
     visiting.remove(node)
     ordered_nodes.insert(0, node)
   for node in sorted(graph):
     Visit(node)
   return ordered_nodes