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CSS generation: Compress cached result with gzip to save redis memory

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This commit is contained in:
Raphael Michel
2023-06-22 12:35:34 +02:00
parent 1eb1d8df5f
commit c16491889b
1 changed files with 6 additions and 2 deletions
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8
src/pretix/presale/style.py
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@@ -19,6 +19,7 @@
# You should have received a copy of the GNU Affero General Public License along with this program. If not, see # You should have received a copy of the GNU Affero General Public License along with this program. If not, see
# <https://www.gnu.org/licenses/>. # <https://www.gnu.org/licenses/>.
# #
import gzip
import hashlib import hashlib
import logging import logging
import os import os
@@ -107,7 +108,10 @@ def compile_scss(object, file="main.scss", fonts=True):
cp = cache.get_or_set('sass_compile_prefix', now().isoformat()) cp = cache.get_or_set('sass_compile_prefix', now().isoformat())
css = cache.get('sass_compile_{}_{}'.format(cp, srcchecksum)) css = cache.get('sass_compile_{}_{}'.format(cp, srcchecksum))
if not css: if css:
if isinstance(css, bytes) and css[0:2] == b'\x1f\x8b':
css = gzip.decompress(css).decode()
else:
cf = dict(django_libsass.CUSTOM_FUNCTIONS) cf = dict(django_libsass.CUSTOM_FUNCTIONS)
cf['static'] = static cf['static'] = static
css = sass.compile( css = sass.compile(
@@ -117,7 +121,7 @@ def compile_scss(object, file="main.scss", fonts=True):
) )
cssf = CSSMinFilter(css) cssf = CSSMinFilter(css)
css = cssf.output() css = cssf.output()
cache.set('sass_compile_{}_{}'.format(cp, srcchecksum), css, 600) cache.set('sass_compile_{}_{}'.format(cp, srcchecksum), gzip.compress(css.encode()), 600)
checksum = hashlib.sha1(css.encode('utf-8')).hexdigest() checksum = hashlib.sha1(css.encode('utf-8')).hexdigest()
return css, checksum return css, checksum