The Tor Browser: media/webrtc/trunk/build/linux/rewrite

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 #!/usr/bin/env python

     2 # Copyright (c) 2011 The Chromium Authors. All rights reserved.

     3 # Use of this source code is governed by a BSD-style license that can be

     4 # found in the LICENSE file.

     6 """Rewrites paths in -I, -L and other option to be relative to a sysroot."""

     8 import sys

     9 import os

    10 import optparse

    12 REWRITE_PREFIX = ['-I',

    13                   '-idirafter',

    14                   '-imacros',

    15                   '-imultilib',

    16                   '-include',

    17                   '-iprefix',

    18                   '-iquote',

    19                   '-isystem',

    20                   '-L']

    22 def RewritePath(path, opts):

    23   """Rewrites a path by stripping the prefix and prepending the sysroot."""

    24   sysroot = opts.sysroot

    25   prefix = opts.strip_prefix

    26   if os.path.isabs(path) and not path.startswith(sysroot):

    27     if path.startswith(prefix):

    28       path = path[len(prefix):]

    29     path = path.lstrip('/')

    30     return os.path.join(sysroot, path)

    31   else:

    32     return path

    35 def RewriteLine(line, opts):

    36   """Rewrites all the paths in recognized options."""

    37   args = line.split()

    38   count = len(args)

    39   i = 0

    40   while i < count:

    41     for prefix in REWRITE_PREFIX:

    42       # The option can be either in the form "-I /path/to/dir" or

    43       # "-I/path/to/dir" so handle both.

    44       if args[i] == prefix:

    45         i += 1

    46         try:

    47           args[i] = RewritePath(args[i], opts)

    48         except IndexError:

    49           sys.stderr.write('Missing argument following %s\n' % prefix)

    50           break

    51       elif args[i].startswith(prefix):

    52         args[i] = prefix + RewritePath(args[i][len(prefix):], opts)

    53     i += 1

    55   return ' '.join(args)

    58 def main(argv):

    59   parser = optparse.OptionParser()

    60   parser.add_option('-s', '--sysroot', default='/', help='sysroot to prepend')

    61   parser.add_option('-p', '--strip-prefix', default='', help='prefix to strip')

    62   opts, args = parser.parse_args(argv[1:])

    64   for line in sys.stdin.readlines():

    65     line = RewriteLine(line.strip(), opts)

    66     print line

    67   return 0

    70 if __name__ == '__main__':

    71   sys.exit(main(sys.argv))

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