From 29a9d253812810448f5fb213115dccf0aab657d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergio=20Mart=C3=ADnez=20Portela?=
 <sergio@codigoparallevar.com>
Date: Sun, 24 Jul 2022 23:08:38 +0200
Subject: [PATCH] Add auto-wrapping media queries for CSS static resources.

---
 scripts/blog.py | 38 +++++++++++++++++++++++++++++++-------
 1 file changed, 31 insertions(+), 7 deletions(-)

diff --git a/scripts/blog.py b/scripts/blog.py
index 354ef5d..050f0ec 100644
--- a/scripts/blog.py
+++ b/scripts/blog.py
@@ -42,7 +42,7 @@ ARTICLE_TEMPLATE_NAME = 'article.tmpl.html'
 STATIC_RESOURCES = (
     ('style.css', 'css/style.css'),
     ('light-syntax.css', 'css/light-syntax.css'),
-    ('dark-syntax.css', 'css/dark-syntax.css'),
+    ('dark-syntax.css', 'css/dark-syntax.css', ('@media (prefers-color-scheme: dark) {\n', '\n}')),
 )
 
 JINJA_ENV = jinja2.Environment(
@@ -176,10 +176,22 @@ def regen_all(source_top, dest_top, docs=None):
         with open(doc_full_path + '.html', 'wt') as f:
             render_article(doc, front_matter, f)
 
-    for src, dest in STATIC_RESOURCES:
-        target_dest = os.path.join(dest_top, dest)
+    for static in STATIC_RESOURCES:
+        src_path = static[0]
+        dest_path = static[1]
+
+        if len(static) > 2:
+            before, after = static[2]
+        else:
+            before, after = '', ''
+        target_dest = os.path.join(dest_top, dest_path)
         os.makedirs(os.path.dirname(target_dest), exist_ok=True)
-        shutil.copy(os.path.join(STATIC_PATH, src), target_dest)
+        with open(os.path.join(STATIC_PATH, src_path), 'rt') as src:
+            data = before + src.read() + after
+
+        with open(target_dest, 'wt') as f:
+            f.write(data)
+
     return docs
 
 
@@ -201,10 +213,22 @@ def main(source_top, dest_top):
         if filepath.startswith(STATIC_PATH):
             t0 = time.time()
             update_statics()
-            for src, dest in STATIC_RESOURCES:
-                target_dest = os.path.join(dest_top, dest)
+            for static  in STATIC_RESOURCES:
+                src_path = static[0]
+                dest_path = static[1]
+
+                if len(static) > 2:
+                    before, after = static[2]
+                else:
+                    before, after = '', ''
+                target_dest = os.path.join(dest_top, dest_path)
                 os.makedirs(os.path.dirname(target_dest), exist_ok=True)
-                shutil.copy(os.path.join(STATIC_PATH, src), target_dest)
+                with open(os.path.join(STATIC_PATH, src_path), 'rt') as src:
+                    data = before + src.read() + after
+
+                with open(target_dest, 'wt') as f:
+                    f.write(data)
+
             docs = regen_all(source_top, dest_top, docs)
             logging.info("Updated all in {:.2f}s".format(time.time() - t0))