#!/usr/bin/env python
-# Copyright 2016 The Rust Project Developers. See the COPYRIGHT
-# file at the top-level directory of this distribution and at
-# http://rust-lang.org/COPYRIGHT.
-#
-# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-# option. This file may not be copied, modified, or distributed
-# except according to those terms.
-import sys
+# This file is only a "symlink" to bootstrap.py, all logic should go there.
+
import os
-dir = os.path.dirname(__file__)
-sys.path.append(os.path.abspath(os.path.join(dir, "src", "bootstrap")))
+import sys
-import bootstrap
+# If this is python2, check if python3 is available and re-execute with that
+# interpreter.
+if sys.version_info.major < 3:
+ try:
+ # On Windows, `py -3` sometimes works.
+ # Try this first, because 'python3' sometimes tries to launch the app
+ # store on Windows
+ os.execvp("py", ["py", "-3"] + sys.argv)
+ except OSError:
+ try:
+ os.execvp("python3", ["python3"] + sys.argv)
+ except OSError:
+ # Python 3 isn't available, fall back to python 2
+ pass
+
+rust_dir = os.path.dirname(os.path.abspath(__file__))
+sys.path.append(os.path.join(rust_dir, "src", "bootstrap"))
+import bootstrap
bootstrap.main()