Put single-page content into a separate js file (#10160)

docs/tools/build.py

@@ -220,6 +220,19 @@ def build_single_page_version(lang, args, nav, cfg):
                     single_page_output_path
                 )
 
+                single_page_index_html = os.path.join(single_page_output_path, 'index.html')
+                single_page_content_js = os.path.join(single_page_output_path, 'content.js')
+                with open(single_page_index_html, 'r') as f:
+                    sp_prefix, sp_js, sp_suffix = f.read().split('<!-- BREAK -->')
+                with open(single_page_index_html, 'w') as f:
+                    f.write(sp_prefix)
+                    f.write(sp_suffix)
+                with open(single_page_content_js, 'w') as f:
+                    if args.minify:
+                        import jsmin
+                        sp_js = jsmin.jsmin(sp_js)
+                    f.write(sp_js)
+
                 logging.info(f'Re-building single page for {lang} pdf/test')
                 with util.temp_dir() as test_dir:
                     extra['single_page'] = False

website/templates/docs/content.html

@@ -17,11 +17,7 @@
         {% endif %}
 
         {% if single_page and page.content %}
-        <script async type="text/javascript">
+        <script type="text/javascript" src="content.js?{{ config.extra.rev_short }}"></script>
-            {% for chunk in page.content|chunks %}
-            document.write({{ chunk|tojson|safe }});
-            {% endfor %}
-        </script>
         {% endif %}
     </div>
 
@@ -32,3 +28,12 @@
     </div>
     {% endif %}
 </div>
+{% if single_page and page.content %}
+<!-- BREAK -->
+(function() {
+    {% for chunk in page.content|chunks %}
+    document.write({{ chunk|tojson|safe }});
+    {% endfor %}
+})();
+<!-- BREAK -->
+{% endif %}