Sith/core/scss/processor.py

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#!/usr/bin/env python3
# -*- coding:utf-8 -*
#
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# Copyright 2017
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# - Sli <antoine@bartuccio.fr>
#
# Ce fichier fait partie du site de l'Association des Étudiants de l'UTBM,
# http://ae.utbm.fr.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License a published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
# Place - Suite 330, Boston, MA 02111-1307, USA.
#
#
import os
from urllib.parse import urljoin
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import sass
from django.conf import settings
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from django.core.files.base import ContentFile
from django.templatetags.static import static
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from django.utils.encoding import force_bytes, iri_to_uri
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from core.scss.storage import ScssFileStorage, find_file
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class ScssProcessor(object):
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"""
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If DEBUG mode enabled : compile the scss file
Else : give the path of the corresponding css supposed to already be compiled
Don't forget to use compilestatics to compile scss for production
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"""
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prefix = iri_to_uri(getattr(settings, "STATIC_URL", "/static/"))
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storage = ScssFileStorage()
scss_extensions = [".scss"]
def __init__(self, path=None):
self.path = path
def _convert_scss(self):
basename, ext = os.path.splitext(self.path)
css_filename = self.path.replace(".scss", ".css")
url = urljoin(self.prefix, css_filename)
if not settings.DEBUG:
return url
if ext not in self.scss_extensions:
return static(self.path)
# Compilation on the fly
compile_args = {
"filename": find_file(self.path),
"include_paths": settings.SASS_INCLUDE_FOLDERS,
}
if settings.SASS_PRECISION:
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compile_args["precision"] = settings.SASS_PRECISION
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content = sass.compile(**compile_args)
content = force_bytes(content)
if self.storage.exists(css_filename):
self.storage.delete(css_filename)
self.storage.save(css_filename, ContentFile(content))
return url
def get_converted_scss(self):
if self.path:
return self._convert_scss()
else:
return ""