contentdb/app/sass.py
2020-12-04 02:26:06 +00:00

64 lines
1.7 KiB
Python

# -*- coding: utf-8 -*-
"""
A small Flask extension that makes it easy to use Sass (SCSS) with your
Flask application.
Code unabashedly adapted from https://github.com/weapp/flask-coffee2js
:copyright: (c) 2012 by Ivan Miric.
:license: MIT, see LICENSE for more details.
"""
import os
import os.path
import codecs
from flask import *
from scss import Scss
def _convert(dir, src, dst):
original_wd = os.getcwd()
os.chdir(dir)
css = Scss()
source = codecs.open(src, 'r', encoding='utf-8').read()
output = css.compile(source)
os.chdir(original_wd)
outfile = codecs.open(dst, 'w', encoding='utf-8')
outfile.write(output)
outfile.close()
def _getDirPath(app, originalPath, create=False):
path = originalPath
if not os.path.isdir(path):
path = os.path.join(app.root_path, path)
if not os.path.isdir(path):
if create:
os.mkdir(path)
else:
raise IOError("Unable to find " + originalPath)
return path
def sass(app, inputDir='scss', outputPath='static', force=False, cacheDir="public/static"):
static_url_path = app.static_url_path
inputDir = _getDirPath(app, inputDir)
cacheDir = _getDirPath(app, cacheDir or outputPath, True)
def _sass(filepath):
sassfile = "%s/%s.scss" % (inputDir, filepath)
cacheFile = "%s/%s.css" % (cacheDir, filepath)
# Source file exists, and needs regenerating
if os.path.isfile(sassfile) and (force or not os.path.isfile(cacheFile) or
os.path.getmtime(sassfile) > os.path.getmtime(cacheFile)):
_convert(inputDir, sassfile, cacheFile)
app.logger.debug('Compiled %s into %s' % (sassfile, cacheFile))
return send_from_directory(cacheDir, filepath + ".css")
app.add_url_rule("/%s/<path:filepath>.css" % outputPath, 'sass', _sass)