New lite home made scss processor

core/scss/finder.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+# -*- coding:utf-8 -*
+#
+# Copyright 2016,2017
+# - 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 collections import OrderedDict
+from django.conf import settings
+from django.contrib.staticfiles.finders import FileSystemFinder
+from django.core.files.storage import FileSystemStorage
+
+
+class ScssFinder(FileSystemFinder):
+    """
+    Find static *.css files compiled on the fly
+    """
+    locations = []
+
+    def __init__(self, apps=None, *args, **kwargs):
+        location = settings.STATIC_ROOT
+        if not os.path.isdir(location):
+            return
+        self.locations = [
+            ('', location),
+        ]
+        self.storages = OrderedDict()
+        filesystem_storage = FileSystemStorage(location=location)
+        filesystem_storage.prefix = self.locations[0][0]
+        self.storages[location] = filesystem_storage
+
+    def find(self, path, all=False):
+        if path.endswith('.css'):
+            return super(ScssFinder, self).find(path, all)
+        return []

core/scss/processor.py

@@ -0,0 +1,76 @@
+#!/usr/bin/env python3
+# -*- coding:utf-8 -*
+#
+# Copyright 2016,2017
+# - 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
+import sass
+from django.utils.encoding import force_bytes, iri_to_uri
+from django.core.files.base import ContentFile
+from django.utils.six.moves.urllib.parse import urljoin
+from django.templatetags.static import static
+from django.conf import settings
+from .storage import ScssFileStorage, find_file
+
+
+class ScssProcessor(object):
+    prefix = iri_to_uri(getattr(settings, 'STATIC_URL', '/static/'))
+    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:
+            compile_args['precision'] = settings.SASS_PRECISION
+        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))
+        print("saved")
+
+        return url
+
+    def get_converted_scss(self):
+        if self.path:
+            return self._convert_scss()
+        else:
+            return ""

core/scss/storage.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+# -*- coding:utf-8 -*
+#
+# Copyright 2016,2017
+# - 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.
+#
+#
+
+from django.conf import settings
+from django.contrib.staticfiles.finders import get_finders
+from django.core.files.storage import FileSystemStorage
+
+
+class ScssFileStorage(FileSystemStorage):
+    def __init__(self, location=None, base_url=None, *args, **kwargs):
+        if location is None:
+            location = settings.STATIC_ROOT
+        if base_url is None:
+            base_url = settings.STATIC_URL
+        super(ScssFileStorage, self).__init__(location, base_url, *args, **kwargs)
+
+
+def find_file(path):
+    for finder in get_finders():
+        result = finder.find(path)
+        if result:
+            return result