Removes files from //build that we don't need

build/linux/rewrite_dirs.py

-#!/usr/bin/env python
-# Copyright (c) 2011 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""Rewrites paths in -I, -L and other option to be relative to a sysroot."""
-
-import sys
-import os
-import optparse
-
-REWRITE_PREFIX = ['-I',
-                  '-idirafter',
-                  '-imacros',
-                  '-imultilib',
-                  '-include',
-                  '-iprefix',
-                  '-iquote',
-                  '-isystem',
-                  '-L']
-
-def RewritePath(path, opts):
-  """Rewrites a path by stripping the prefix and prepending the sysroot."""
-  sysroot = opts.sysroot
-  prefix = opts.strip_prefix
-  if os.path.isabs(path) and not path.startswith(sysroot):
-    if path.startswith(prefix):
-      path = path[len(prefix):]
-    path = path.lstrip('/')
-    return os.path.join(sysroot, path)
-  else:
-    return path
-
-
-def RewriteLine(line, opts):
-  """Rewrites all the paths in recognized options."""
-  args = line.split()
-  count = len(args)
-  i = 0
-  while i < count:
-    for prefix in REWRITE_PREFIX:
-      # The option can be either in the form "-I /path/to/dir" or
-      # "-I/path/to/dir" so handle both.
-      if args[i] == prefix:
-        i += 1
-        try:
-          args[i] = RewritePath(args[i], opts)
-        except IndexError:
-          sys.stderr.write('Missing argument following %s\n' % prefix)
-          break
-      elif args[i].startswith(prefix):
-        args[i] = prefix + RewritePath(args[i][len(prefix):], opts)
-    i += 1
-
-  return ' '.join(args)
-
-
-def main(argv):
-  parser = optparse.OptionParser()
-  parser.add_option('-s', '--sysroot', default='/', help='sysroot to prepend')
-  parser.add_option('-p', '--strip-prefix', default='', help='prefix to strip')
-  opts, args = parser.parse_args(argv[1:])
-
-  for line in sys.stdin.readlines():
-    line = RewriteLine(line.strip(), opts)
-    print line
-  return 0
-
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv))