Process a Nikola output folder and replace all CSS files with versions where mincss has removed all the unused crud, making them much smaller.

apply_mincss.py

import os
import sys

output_folder = os.path.abspath(sys.argv[1])
from mincss.processor import Processor
p = Processor()
urls = []
css_files = {}
for root, dirs, files in os.walk(output_folder):
    for f in files:
        url = os.path.join(output_folder, root, f)
        if url.endswith('.css'):
            fname = os.path.basename(url)
            if fname in css_files:
                print "You have two CSS files with the same name and that confuses me."
                sys.exit(1)
            css_files[fname] = url
        if not f.endswith('.html'):
            continue
        urls.append(url)
        
p.process(*urls)
for inline in p.links:
    fname = os.path.basename(inline.href)
    print css_files[fname]
    print "===>", inline.href, len(inline.before), len(inline.after)
    with open(css_files[fname], 'wb+') as outf:
        outf.write(inline.after)