Allowed installing closure with pip for admin JavaScript compression.

import subprocess

import sys

try:

    import closure

except ImportError:

    closure_compiler = None

else:

    closure_compiler = os.path.join(os.path.dirname(closure.__file__), 'closure.jar')

js_path = os.path.join(os.path.dirname(os.path.dirname(__file__)), 'static', 'admin', 'js')

                      action="store_false", dest="verbose")

    options = parser.parse_args()

    compiler = os.path.expanduser(options.compiler)

    compiler = closure_compiler if closure_compiler else os.path.expanduser(options.compiler)

    if not os.path.exists(compiler):

        sys.exit(

            "Google Closure compiler jar file %s not found. Please use the -c "

To simplify the process of providing optimized JavaScript code, Django

includes a handy Python script which should be used to create a "minified"

version. To run it::

version. To run it:

    python django/contrib/admin/bin/compress.py

.. code-block:: console

    $ pip install closure

    $ python django/contrib/admin/bin/compress.py

Behind the scenes, ``compress.py`` is a front-end for Google's

`Closure Compiler`_ which is written in Java. However, the Closure Compiler

library is not bundled with Django directly, so those wishing to contribute

complete JavaScript patches will need to download and install the library

independently. The Closure Compiler library requires `Java`_ 7 or higher.

`Closure Compiler`_ which is written in Java. The Closure Compiler library is

not bundled with Django, but you can install it using pip as done above. The

Closure Compiler library requires `Java`_ 7 or higher.

Please don't forget to run ``compress.py`` and include the ``diff`` of the

minified scripts when submitting patches for Django's JavaScript.