scripts jinjatag

scripts.py

import jinjatag
from bs4 import BeautifulSoup
import coffeescript

@jinjatag.simple_block()
def script(body, uglify=None):
    if uglify is None:
        uglify = not static.config.get('ASSETS_DEBUG', True)
    soup = BeautifulSoup(body)
    scripts = soup.findAll('script')
    js = []
    for script in scripts:
        script_type = script.get('type', 'text/javascript').lower()
        text = ''
        if script_type == 'text/javascript':
            text = script.get_text()
        elif script_type == 'text/coffeescript':
            text = coffeescript.compile(script.get_text())
        js.append(text)

    joined =  ';\n'.join(js)
    if uglify:
        p = Popen(['uglifyjs', '--inline-script', '--lift-vars'], stdout=PIPE, stdin=PIPE, stderr=STDOUT)
    else:
        p = Popen(['uglifyjs', '-b', '--inline-script'], stdout=PIPE, stdin=PIPE, stderr=STDOUT)
    output = p.communicate(input=joined)[0]
    return "<script type='text/javascript'>{0}</script>".format(output)