Use GN to copy crt objects into fusl sysroot

fusl/tools/copy_crt.py

Index: fusl/tools/copy_crt.py
diff --git a/fusl/tools/copy_crt.py b/fusl/tools/copy_crt.py
deleted file mode 100755
index 50414650b845065b87ed5f3538d03fbed91ebb02..0000000000000000000000000000000000000000
--- a/fusl/tools/copy_crt.py
+++ /dev/null
@@ -1,59 +0,0 @@
-#!/usr/bin/env python
-# Copyright 2016 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.
-
-"""A tool to populate the C runtime portions of a fusl sysroot. This
-script primarily exists because it is easier to copy manually than to
-teach GN how to treat .o files as first class outputs."""
-
-import argparse
-import os
-import shutil
-import sys
-
-def copy_sysroot(args, files):
-  try:
-    os.makedirs(args.target)
-  except OSError:
-    # It already exists. Probably.
-    pass
-
-  for file in files:
-    source_file = os.path.join(args.source, file)
-
-  # Some source files will be under a subdirectory, so take the last
-  # path component.
-  _, stripped_file = os.path.split(source_file)
-  # Strip out the prefix gn places for its object files.
-  assert(stripped_file.startswith(args.gn_prefix))
-  stripped_file = stripped_file[len(args.gn_prefix):]
-  target_file = os.path.join(args.target, stripped_file)
-
-  shutil.copyfile(source_file, target_file)
-
-
-def parse():
-  parser = argparse.ArgumentParser()
-
-  parser.add_argument('--source',
-                      required=True,
-                      help='Source directory')
-  parser.add_argument('--target',
-                      required=True,
-                      help='Target directory')
-  parser.add_argument('--gn-prefix',
-                      required=True,
-                      help='File prefix added by GN')
-
-  return parser.parse_known_args()
-
-
-def main():
-  args, files = parse()
-  copy_sysroot(args, files)
-  return 0
-
-
-if __name__ == '__main__':
-  sys.exit(main())