Create wrapper scripts that set --output-directory

build/android/gyp/create_tool_script.py

+#!/usr/bin/env python

[jbudorick, 2016/02/03 19:46:27]

It'd be nice if this could share logic with the existing test runner script
generation logic over in
https://code.google.com/p/chromium/codesearch#chromium/src/build/android/gyp/...

[agrieve, 2016/02/04 19:27:00]

Just spent some time attempting this. Looked at:
- create_tool_script.py
- create_test_runner_script.py
- create_java_binary_wrapper.py
- create_install_script.py

Everything I tried just made the scripts more complicated than it's worth I
think. 

[jbudorick, 2016/02/08 16:14:18]

:(

ok

+#
+# 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.
+
+"""Creates a simple wrapper script that passes the correct --output-directory.
+"""
+
+import argparse
+import os
+
+from util import build_utils
+
+# The java command must be executed in the current directory because there may

[jbudorick, 2016/02/03 19:46:27]

...? I'm not sure I follow the requirements implied by this comment.

[agrieve, 2016/02/04 19:27:00]

Whoops, left over from create_java_binary_script.py. gone.

+# be user-supplied paths in the args. The script receives the classpath relative
+# to the directory that the script is written in and then, when run, must
+# recalculate the paths relative to the current directory.
+_TEMPLATE = """\
+#!/usr/bin/env python
+#
+# This file was generated by //build/android/gyp/create_tool_script.py
+
+import os
+import sys
+
+args = ['--output-directory={output_directory}'] + sys.argv[1:]
+os.execv('{cmd}', args)
+"""
+
+def main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--output', help='Output path for executable script.')
+  parser.add_argument('--target', help='Path to script being wrapped.')
+  parser.add_argument('--output-directory', help='Value for --output-directory')
+  args = parser.parse_args()
+
+  with open(args.output, 'w') as script:
+    script.write(_TEMPLATE.format(
+        cmd=os.path.abspath(args.target),
+        output_directory=os.path.abspath(args.output_directory)))
+
+  os.chmod(args.output, 0750)
+
+
+if __name__ == '__main__':
+  main()