Django template tag for creating URL with version number to static file.

vstatic.py

import os

from django import template
from django.conf import settings

register = template.Library()

@register.simple_tag(name="vstatic")
def vstatic(path):
    """ Return absolute URL to static file with versioning. """
    url = os.path.join(settings.STATIC_URL, path)

    version = settings.STATIC_VERSION

    try:
        if version == 'mtime':
            full_path = os.path.join(settings.STATIC_ROOT, path)
            version = int(os.path.getmtime(full_path))

        if '?' in url:
            url = '%s&v=%s' % (url, version)
        else:
            url = '%s?v=%s' % (url, version)
    except OSError:
        print full_path
        pass

    return url