From: Vladimír Vondruš <mosra@centrum.cz>
Date: Wed, 13 Jun 2018 10:20:07 +0000 (+0200)
Subject: Make the latex2svg caching fully optional.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~cjwatson/git?a=commitdiff_plain;h=1f6fb21362b214f65ea0075ca3c9146e4c2a7380;p=blog.git

Make the latex2svg caching fully optional.
---

diff --git a/pelican-plugins/latex2svgextra.py b/pelican-plugins/latex2svgextra.py
index 7187e83c..2ffc33c6 100644
--- a/pelican-plugins/latex2svgextra.py
+++ b/pelican-plugins/latex2svgextra.py
@@ -76,11 +76,13 @@ _cache = None
 def fetch_cached_or_render(formula):
     global _cache
 
-    # unpickle_cache() should be called first
-    assert _cache
+    # Cache not used, pass through
+    if not _cache:
+        out = latex2svg.latex2svg(formula, params=params)
+        return out['depth'], out['svg']
 
     hash = sha1(formula.encode('utf-8')).digest()
-    if not _cache or not hash in _cache[2]:
+    if not hash in _cache[2]:
         out = latex2svg.latex2svg(formula, params=params)
         _cache[2][hash] = (_cache[1], out['depth'], out['svg'])
     else: