Renamed the 'dartc' launch script to 'dart-analysis' and adds it to dart-sdk

compiler/scripts/dartc_build_wrapper.py

-#!/usr/bin/env python
-# Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-"""Wrapper around dartc for use from GYP."""
-
-import optparse
-import os
-from os import path
-import shutil
-import subprocess
-import sys
-
-
-def _BuildOptions():
-  op = optparse.OptionParser(usage='usage: %prog [options] FILE')
-  op.add_option('--out')
-  op.add_option('--dartc')
-  op.add_option('--dartc-option', action='append', dest='dartc_options',
-                default=[])
-  op.add_option('--incremental', action='store_false',
-                default=os.getenv('DARTC_INCREMENTAL', default=False))
-  return op
-
-
-def _ParseOptions(cmd_line):
-  op = _BuildOptions()
-  (options, args) = op.parse_args(args=cmd_line)
-  if not options.out:
-    op.error('Flag "--out" not provided')
-  if not options.dartc:
-    op.error('Flag "--dartc" not provided')
-  return (options, args)
-
-
-def main():
-  (options, args) = _ParseOptions(sys.argv[1:])
-  if path.exists(options.out):
-    is_out_of_date = path.getmtime(options.dartc) > path.getmtime(options.out)
-    if is_out_of_date or not options.incremental:
-      print 'Deleting %r.' % options.out
-      shutil.rmtree(options.out)
-  command_array = [options.dartc]
-  command_array.extend(['-out', options.out])
-  command_array.extend(options.dartc_options)
-  command_array.extend(args)
-  print ' '.join([repr(a) for a in command_array])
-  proc = subprocess.Popen(command_array)
-  proc.communicate()
-  sys.exit(proc.wait())
-
-
-if __name__ == '__main__':
-  main()