This adds in the GYP files needed for our GYP build.

build/build_nacl.py

Index: build/build_nacl.py
===================================================================
--- build/build_nacl.py	(revision 0)
+++ build/build_nacl.py	(revision 0)
@@ -0,0 +1,169 @@
+#!/usr/bin/python2.4
+# Copyright 2009 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is just here so that we can modify the python path before
+# invoking nixysa.
+
+import os
+import os.path
+import shutil
+import subprocess
+import sys
+
+third_party = os.path.join('..', '..', 'third_party')
+gflags_dir = os.path.join(third_party, 'gflags', 'python')
+sys.path.append(gflags_dir)
+
+import gflags
+
+FLAGS = gflags.FLAGS
+gflags.DEFINE_string('configuration', 'Debug',
+                     'Specify which configuration to build.')
+
+gflags.DEFINE_string('platform', 'win',
+                      'Specify which platform to build.')
+
+gflags.DEFINE_boolean('debug', False,
+                      'Whether or not to turn on debug output '
+                      'when running scons.')
+
+gflags.DEFINE_string('output', '.', 'Sets the output directory.')
+
+
+def CopyIfNewer(inputs, output_dir):
+  '''Copy the inputs to the output directory, but only if the files are
+  newer than the destination files.'''
+  for input in inputs:
+    output = os.path.join(output_dir, os.path.basename(input))
+    if os.path.exists(input):
+      if (not os.path.exists(output) or
+          os.path.getmtime(input) > os.path.getmtime(output)):
+        try:
+          print 'Copying from %s to %s' % (input, output)
+          shutil.copy2(input, output)
+        except:
+          return False
+      else:
+        print '%s is up to date.' % output
+  return True
+
+def PrependToPath(path, item):
+  '''Prepend an item to an environment variable path.'''
+  orig_path = os.environ.get(path)
+  if orig_path:
+    new_path = os.pathsep.join([item, orig_path])
+  else:
+    new_path = item
+
+  os.environ[path] = new_path
+
+def AppendToPath(path, item):
+  '''Append an item to an environment variable path.'''
+  orig_path = os.environ.get(path)
+  if orig_path:
+    new_path = os.pathsep.join([orig_path, item])
+  else:
+    new_path = item
+
+  os.environ[path] = new_path
+
+def FindPlatformSDK():
+  '''On Windows, find the installed location of the Platform SDK.'''
+  import _winreg
+  try:
+    winsdk_key = _winreg.OpenKey(
+        _winreg.HKEY_LOCAL_MACHINE,
+        'SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\v6.1\\WinSDKBuild')
+  except WindowsError:
+    try:
+      winsdk_key = _winreg.OpenKey(
+          _winreg.HKEY_LOCAL_MACHINE,
+          'SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\v6.0A\\WinSDKBuild')
+    except WindowsError:
+      print 'The Windows SDK version 6.0 or later needs to be installed'
+      sys.exit(1)
+  try:
+    winsdk_dir, value_type = _winreg.QueryValueEx(winsdk_key,
+                                                  'InstallationFolder')
+  except WindowsError:
+    print 'The Windows SDK version 6.0 or later needs to be installed'
+    sys.exit(1)
+  _winreg.CloseKey(winsdk_key)
+
+  # Strip off trailing slashes
+  winsdk_dir = winsdk_dir.rstrip('\\/')
+  AppendToPath('PATH', os.path.join(winsdk_dir, 'Bin'))
+  AppendToPath('INCLUDE', os.path.join(winsdk_dir, 'Include'))
+  AppendToPath('LIB', os.path.join(winsdk_dir, 'Lib'))
+
+def main(args):
+  extra_args = FLAGS(args)
+  # strip off argv[0]
+  extra_args = extra_args[1:]
+
+  pythonpath = os.path.join(third_party, 'scons', 'scons-local')
+  PrependToPath('PYTHONPATH', pythonpath)
+
+  binutils_path = os.path.join(third_party, 'gnu_binutils', 'files')
+  AppendToPath('PATH', binutils_path)
+
+  config = 'opt'
+  if FLAGS.configuration == 'Debug':
+    config = 'dbg'
+  elif FLAGS.configuration == 'Release':
+    config = 'opt'
+
+  mode = '%s-%s' % (config, FLAGS.platform)
+
+  native_client_dir = os.path.join(third_party, 'native_client',
+                                   'googleclient', 'native_client')
+
+  args = [
+    'MODE=%s' % mode,
+    'naclsdk_validate=0',
+    'sdl=none',
+    '--verbose',
+    '--file=SConstruct',
+    '-C',
+    native_client_dir,
+  ]
+  scons = os.path.join(third_party, 'scons', 'scons.py')
+  args = [sys.executable, scons] + args + extra_args
+
+  # Add the platform SDK to INCLUDE and LIB
+  if FLAGS.platform == 'win':
+    FindPlatformSDK()
+
+  print 'Executing %s' % ' '.join(args)
+  status = subprocess.call(args)
+
+  # Calculate what the output files should be.
+  outputs = []
+  for arg in extra_args:
+    file_path = os.path.join(native_client_dir,
+                             'scons-out', mode, 'lib', arg)
+    if FLAGS.platform == 'win':
+      file_path = file_path + '.lib'
+    else:
+      file_path = file_path + '.a'
+    outputs.append(file_path)
+
+  if status == 0 and not CopyIfNewer(outputs, FLAGS.output):
+    sys.exit(-1)
+  else:
+    sys.exit(status)
+
+if __name__ == '__main__':
+  main(sys.argv)