native_client_sdk/src/tools/cl_wrapper.py

   1 # Copyright 2015 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 """Wrapper script for MSVC's cl.exe that filters out filename.
   6
   7 When cl.exe is run by 'make' we want to be behave more like
   8 gcc and be silent by default. There seems to be no flag which
   9 tells cl.exe to suppress the name of the file its compiling
  10 so we use a wrapper script to filter its output.
  11
  12 This was inspired by ninja's msvc wrapper:
  13 src/msvc_helper-win32.cc:CLParser::FilterInputFilename
  14 """
  15
  16 import os
  17 import subprocess
  18 import sys
  19
  20
  21 def main(args):
  22   p = subprocess.Popen(['cl.exe'] + args, stdout=subprocess.PIPE)
  23   for line in p.stdout:
  24     extension = os.path.splitext(line.strip())[1]
  25     if extension.lower() not in ('.c', '.cpp', '.cxx', '.cc'):
  26       sys.stdout.write(line)
  27   return p.wait()
  28
  29
  30 if __name__ == '__main__':
  31   sys.exit(main(sys.argv[1:]))