config/make-stl-wrappers.py

   1 # This Source Code Form is subject to the terms of the Mozilla Public
   2 # License, v. 2.0. If a copy of the MPL was not distributed with this
   3 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   4 from __future__ import print_function
   5 import os
   6 import string
   7 from mozbuild.util import FileAvoidWrite
   8
   9
  10 def find_in_path(file, searchpath):
  11     for dir in searchpath.split(os.pathsep):
  12         f = os.path.join(dir, file)
  13         if os.path.exists(f):
  14             return f
  15     return ''
  16
  17
  18 def header_path(header, compiler):
  19     if compiler == 'gcc':
  20         # we use include_next on gcc
  21         return header
  22     elif compiler == 'msvc':
  23         return find_in_path(header, os.environ.get('INCLUDE', ''))
  24     else:
  25         # hope someone notices this ...
  26         raise NotImplementedError(compiler)
  27
  28 # The 'unused' arg is the output file from the file_generate action. We actually
  29 # generate all the files in header_list
  30
  31
  32 def gen_wrappers(unused, outdir, compiler, template_file, *header_list):
  33     template = open(template_file, 'r').read()
  34
  35     for header in header_list:
  36         path = header_path(header, compiler)
  37         with FileAvoidWrite(os.path.join(outdir, header)) as f:
  38             f.write(string.Template(template).substitute(HEADER=header,
  39                                                          HEADER_PATH=path))