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from pelican import signals
import multiprocessing
import htmlmin
import os
import re
import logging
logger = logging.getLogger(__name__)
def run(pelican):
# should we run or not
if pelican.settings.get(
'HTMLMIN_DEBUG',
logger.getEffectiveLevel() == logging.DEBUG
):
# HTMLMIN_DEBUG is True or Pelican is in DEBUG mode
# Don't minify the output to help with debugging
return
options = pelican.settings.get(
'HTMLMIN_OPTIONS',
{
'remove_commends': True,
'remove_all_empty_space': True,
'remove_optional_attribute_quotes': False
}
)
htmlfile = re.compile(
pelican.settings.get('HTMLMIN_MATCH', r'.html?$')
)
pool = multiprocessing.Pool()
# find all matching files and give to workers to minify
for base, dirs, files in os.walk(pelican.settings['OUTPUT_PATH']):
for f in filter(htmlfile.search, files):
filepath = os.path.join(base, f)
pool.apply_async(worker, (filepath, options))
# wait for the workers to finish
pool.close()
pool.join()
def worker(filepath, options):
"""use htmlmin to minify the given file"""
rawhtml = open(filepath, encoding='utf-8').read()
with open(filepath, 'w', encoding='utf-8') as f:
logger.debug('Minifying: %s', filepath)
try:
compressed = htmlmin.minify(rawhtml, **options)
f.write(compressed)
except Exception as e:
logger.critical('Minification failed: %s', e)
def register():
"""minify HTML at the end of the pelican build"""
signals.finalized.connect(run)
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