From a9bdb7ee98fc8969d4e5cf990262dd78353a0d84 Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Thu, 15 Jan 2026 05:57:26 +0000
Subject: [PATCH 1/3] feat: move mermaid DOM transformation to build time

Optimizes performance by moving the transformation of Mermaid code blocks
from client-side JavaScript to a build-time Jekyll plugin.

- Adds `nokogiri` dependency for HTML parsing
- Adds `_plugins/mermaid_processor.rb` to transform `<pre><code>` to `div.mermaid`
- Removes client-side transformation loop from `_includes/mermaid.html`
---
 Gemfile                       |  1 +
 Gemfile.lock                  | 33 +++++++++++++++++++++++++++++++++
 _includes/mermaid.html        |  9 ---------
 _plugins/mermaid_processor.rb | 30 ++++++++++++++++++++++++++++++
 4 files changed, 64 insertions(+), 9 deletions(-)
 create mode 100644 _plugins/mermaid_processor.rb

diff --git a/Gemfile b/Gemfile
index a95a9f1..002aadb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -32,3 +32,4 @@ gem "wdm", "~> 0.1", :platforms => [:mingw, :x64_mingw, :mswin]
 # Lock `http_parser.rb` gem to `v0.6.x` on JRuby builds since newer versions of the gem
 # do not have a Java counterpart.
 gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]
+gem "nokogiri"
diff --git a/Gemfile.lock b/Gemfile.lock
index 52b8edc..3c22a4a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -92,13 +92,34 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.10)
     logger (1.7.0)
     mercenary (0.4.0)
+    mini_portile2 (2.8.9)
     minima (2.5.2)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
+    nokogiri (1.19.0)
+      mini_portile2 (~> 2.8.2)
+      racc (~> 1.4)
+    nokogiri (1.19.0-aarch64-linux-gnu)
+      racc (~> 1.4)
+    nokogiri (1.19.0-aarch64-linux-musl)
+      racc (~> 1.4)
+    nokogiri (1.19.0-arm-linux-gnu)
+      racc (~> 1.4)
+    nokogiri (1.19.0-arm-linux-musl)
+      racc (~> 1.4)
+    nokogiri (1.19.0-arm64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.19.0-x86_64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.19.0-x86_64-linux-gnu)
+      racc (~> 1.4)
+    nokogiri (1.19.0-x86_64-linux-musl)
+      racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (7.0.0)
+    racc (1.8.1)
     rake (13.3.1)
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
@@ -169,6 +190,7 @@ DEPENDENCIES
   jekyll-feed (~> 0.12)
   logger
   minima (~> 2.5)
+  nokogiri
   tzinfo (>= 1, < 3)
   tzinfo-data
   wdm (~> 0.1)
@@ -217,9 +239,20 @@ CHECKSUMS
   listen (3.9.0) sha256=db9e4424e0e5834480385197c139cb6b0ae0ef28cc13310cfd1ca78377d59c67
   logger (1.7.0) sha256=196edec7cc44b66cfb40f9755ce11b392f21f7967696af15d274dde7edff0203
   mercenary (0.4.0) sha256=b25a1e4a59adca88665e08e24acf0af30da5b5d859f7d8f38fba52c28f405138
+  mini_portile2 (2.8.9) sha256=0cd7c7f824e010c072e33f68bc02d85a00aeb6fce05bb4819c03dfd3c140c289
   minima (2.5.2) sha256=9c434e3b7bc4a0f0ab488910438ed3757a0502ff1060d172f361907fc38aa45a
+  nokogiri (1.19.0) sha256=e304d21865f62518e04f2bf59f93bd3a97ca7b07e7f03952946d8e1c05f45695
+  nokogiri (1.19.0-aarch64-linux-gnu) sha256=11a97ecc3c0e7e5edcf395720b10860ef493b768f6aa80c539573530bc933767
+  nokogiri (1.19.0-aarch64-linux-musl) sha256=eb70507f5e01bc23dad9b8dbec2b36ad0e61d227b42d292835020ff754fb7ba9
+  nokogiri (1.19.0-arm-linux-gnu) sha256=572a259026b2c8b7c161fdb6469fa2d0edd2b61cd599db4bbda93289abefbfe5
+  nokogiri (1.19.0-arm-linux-musl) sha256=23ed90922f1a38aed555d3de4d058e90850c731c5b756d191b3dc8055948e73c
+  nokogiri (1.19.0-arm64-darwin) sha256=0811dfd936d5f6dd3f6d32ef790568bf29b2b7bead9ba68866847b33c9cf5810
+  nokogiri (1.19.0-x86_64-darwin) sha256=1dad56220b603a8edb9750cd95798bffa2b8dd9dd9aa47f664009ee5b43e3067
+  nokogiri (1.19.0-x86_64-linux-gnu) sha256=f482b95c713d60031d48c44ce14562f8d2ce31e3a9e8dd0ccb131e9e5a68b58c
+  nokogiri (1.19.0-x86_64-linux-musl) sha256=1c4ca6b381622420073ce6043443af1d321e8ed93cc18b08e2666e5bd02ffae4
   pathutil (0.16.2) sha256=e43b74365631cab4f6d5e4228f812927efc9cb2c71e62976edcb252ee948d589
   public_suffix (7.0.0) sha256=f7090b5beb0e56f9f10d79eed4d5fbe551b3b425da65877e075dad47a6a1b095
+  racc (1.8.1) sha256=4a7f6929691dbec8b5209a0b373bc2614882b55fc5d2e447a21aaa691303d62f
   rake (13.3.1) sha256=8c9e89d09f66a26a01264e7e3480ec0607f0c497a861ef16063604b1b08eb19c
   rb-fsevent (0.11.2) sha256=43900b972e7301d6570f64b850a5aa67833ee7d87b458ee92805d56b7318aefe
   rb-inotify (0.11.1) sha256=a0a700441239b0ff18eb65e3866236cd78613d6b9f78fea1f9ac47a85e47be6e
diff --git a/_includes/mermaid.html b/_includes/mermaid.html
index 037b223..c94a26a 100644
--- a/_includes/mermaid.html
+++ b/_includes/mermaid.html
@@ -1,15 +1,6 @@
 <script src="https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.min.js"></script>
 <script>
     document.addEventListener("DOMContentLoaded", function () {
-        // 将 Jekyll 生成的 <pre><code class="language-mermaid"> 转换为 <div class="mermaid">
-        document.querySelectorAll('code.language-mermaid').forEach(function (codeElement) {
-            var preElement = codeElement.parentElement;
-            var mermaidDiv = document.createElement('div');
-            mermaidDiv.className = 'mermaid';
-            mermaidDiv.textContent = codeElement.textContent;
-            preElement.replaceWith(mermaidDiv);
-        });
-
         // 初始化 Mermaid
         mermaid.initialize({
             startOnLoad: true,
diff --git a/_plugins/mermaid_processor.rb b/_plugins/mermaid_processor.rb
new file mode 100644
index 0000000..02ffc03
--- /dev/null
+++ b/_plugins/mermaid_processor.rb
@@ -0,0 +1,30 @@
+require 'nokogiri'
+
+Jekyll::Hooks.register [:posts, :pages], :post_render do |doc|
+  # Only process HTML documents
+  if doc.output_ext == '.html'
+    content = doc.output
+    # Using Nokogiri to parse the HTML
+    fragment = Nokogiri::HTML::DocumentFragment.parse(content)
+
+    # Find all <pre><code class="language-mermaid"> elements
+    mermaid_blocks = fragment.css('pre > code.language-mermaid')
+
+    if mermaid_blocks.any?
+      mermaid_blocks.each do |code_element|
+        pre_element = code_element.parent
+
+        # Create the new div
+        mermaid_div = Nokogiri::XML::Node.new('div', fragment)
+        mermaid_div['class'] = 'mermaid'
+        mermaid_div.content = code_element.content
+
+        # Replace the pre element with the new div
+        pre_element.replace(mermaid_div)
+      end
+
+      # Update the document output
+      doc.output = fragment.to_html
+    end
+  end
+end

From cad4a0cca2059b35fa798e8d048b0f5a501ad835 Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Thu, 15 Jan 2026 06:09:17 +0000
Subject: [PATCH 2/3] feat: move mermaid DOM transformation to build time

Optimizes performance by moving the transformation of Mermaid code blocks
from client-side JavaScript to a build-time Jekyll plugin.

- Adds `nokogiri` dependency for HTML parsing
- Adds `_plugins/mermaid_processor.rb` to transform `<pre><code>` to `div.mermaid`
- Removes client-side transformation loop from `_includes/mermaid.html`
- Downgrades `BUNDLED WITH` in Gemfile.lock to 2.4.19 to ensure compatibility
---
 Gemfile.lock | 85 +---------------------------------------------------
 1 file changed, 1 insertion(+), 84 deletions(-)

diff --git a/Gemfile.lock b/Gemfile.lock
index 3c22a4a..c9a5176 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -195,88 +195,5 @@ DEPENDENCIES
   tzinfo-data
   wdm (~> 0.1)
 
-CHECKSUMS
-  addressable (2.8.8) sha256=7c13b8f9536cf6364c03b9d417c19986019e28f7c00ac8132da4eb0fe393b057
-  base64 (0.3.0) sha256=27337aeabad6ffae05c265c450490628ef3ebd4b67be58257393227588f5a97b
-  bigdecimal (4.0.1) sha256=8b07d3d065a9f921c80ceaea7c9d4ae596697295b584c296fe599dd0ad01c4a7
-  colorator (1.1.0) sha256=e2f85daf57af47d740db2a32191d1bdfb0f6503a0dfbc8327d0c9154d5ddfc38
-  concurrent-ruby (1.3.6) sha256=6b56837e1e7e5292f9864f34b69c5a2cbc75c0cf5338f1ce9903d10fa762d5ab
-  csv (3.3.5) sha256=6e5134ac3383ef728b7f02725d9872934f523cb40b961479f69cf3afa6c8e73f
-  em-websocket (0.5.3) sha256=f56a92bde4e6cb879256d58ee31f124181f68f8887bd14d53d5d9a292758c6a8
-  eventmachine (1.2.7) sha256=994016e42aa041477ba9cff45cbe50de2047f25dd418eba003e84f0d16560972
-  ffi (1.17.2) sha256=297235842e5947cc3036ebe64077584bff583cd7a4e94e9a02fdec399ef46da6
-  ffi (1.17.2-aarch64-linux-gnu) sha256=c910bd3cae70b76690418cce4572b7f6c208d271f323d692a067d59116211a1a
-  ffi (1.17.2-aarch64-linux-musl) sha256=69e6556b091d45df83e6c3b19d3c54177c206910965155a6ec98de5e893c7b7c
-  ffi (1.17.2-arm-linux-gnu) sha256=d4a438f2b40224ae42ec72f293b3ebe0ba2159f7d1bd47f8417e6af2f68dbaa5
-  ffi (1.17.2-arm-linux-musl) sha256=977dfb7f3a6381206dbda9bc441d9e1f9366bf189a634559c3b7c182c497aaa3
-  ffi (1.17.2-arm64-darwin) sha256=54dd9789be1d30157782b8de42d8f887a3c3c345293b57ffb6b45b4d1165f813
-  ffi (1.17.2-x86-linux-gnu) sha256=95d8f9ebea23c39888e2ab85a02c98f54acb2f4e79b829250d7267ce741dc7b0
-  ffi (1.17.2-x86-linux-musl) sha256=41741449bab2b9530f42a47baa5c26263925306fad0ac2d60887f51af2e3b24c
-  ffi (1.17.2-x86_64-darwin) sha256=981f2d4e32ea03712beb26e55e972797c2c5a7b0257955d8667ba58f2da6440e
-  ffi (1.17.2-x86_64-linux-gnu) sha256=05d2026fc9dbb7cfd21a5934559f16293815b7ce0314846fee2ac8efbdb823ea
-  ffi (1.17.2-x86_64-linux-musl) sha256=97c0eb3981414309285a64dc4d466bd149e981c279a56371ef811395d68cb95c
-  forwardable-extended (2.6.0) sha256=1bec948c469bbddfadeb3bd90eb8c85f6e627a412a3e852acfd7eaedbac3ec97
-  google-protobuf (4.33.2) sha256=748150d6c642fd655ef39efa23ecf2abe6d616020039a6d1c1764be1da530315
-  google-protobuf (4.33.2-aarch64-linux-gnu) sha256=822b2dcb707e94e652cd994642c31035935fca021adfac6164772c511eb7acd4
-  google-protobuf (4.33.2-aarch64-linux-musl) sha256=c4b64428183cfd1953ec8c37beec1036668c8ec0865cfb0b18df21181ca397ee
-  google-protobuf (4.33.2-arm64-darwin) sha256=6d0ac185fed18768e5f16338455b1e4b7c38a97fc46f352e709f7a3007b64e1d
-  google-protobuf (4.33.2-x86-linux-gnu) sha256=82612c425d7a0b0f8f299d8e595a367984fcd22a155b8ac5861eea0e76ca1a93
-  google-protobuf (4.33.2-x86-linux-musl) sha256=cc7e322228967c230f3b9c47a76de4e59fb47001900f4cbdf9056d1de92199ab
-  google-protobuf (4.33.2-x86_64-darwin) sha256=87cde586234674562cf099e2b708a65e376e2d39b0f0f48281f4b4ea182b47f8
-  google-protobuf (4.33.2-x86_64-linux-gnu) sha256=73cba041477afcac92ff383fcbdec195ea28d96b994876d1deaa944d18f91786
-  google-protobuf (4.33.2-x86_64-linux-musl) sha256=97cdf4f772c5540f9274603b00f1474ed5e6e2238b1d8b1585e77f941a36bd2c
-  http_parser.rb (0.8.1) sha256=9ae8df145b39aa5398b2f90090d651c67bd8e2ebfe4507c966579f641e11097a
-  i18n (1.14.8) sha256=285778639134865c5e0f6269e0b818256017e8cde89993fdfcbfb64d088824a5
-  jekyll (4.4.1) sha256=4c1144d857a5b2b80d45b8cf5138289579a9f8136aadfa6dd684b31fe2bc18c1
-  jekyll-feed (0.17.0) sha256=689aab16c877949bb9e7a5c436de6278318a51ecb974792232fd94d8b3acfcc3
-  jekyll-sass-converter (3.1.0) sha256=83925d84f1d134410c11d0c6643b0093e82e3a3cf127e90757a85294a3862443
-  jekyll-seo-tag (2.8.0) sha256=3f2ed1916d56f14ebfa38e24acde9b7c946df70cb183af2cb5f0598f21ae6818
-  jekyll-watch (2.2.1) sha256=bc44ed43f5e0a552836245a54dbff3ea7421ecc2856707e8a1ee203a8387a7e1
-  json (2.18.0) sha256=b10506aee4183f5cf49e0efc48073d7b75843ce3782c68dbeb763351c08fd505
-  kramdown (2.5.1) sha256=87bbb6abd9d3cebe4fc1f33e367c392b4500e6f8fa19dd61c0972cf4afe7368c
-  kramdown-parser-gfm (1.1.0) sha256=fb39745516427d2988543bf01fc4cf0ab1149476382393e0e9c48592f6581729
-  liquid (4.0.4) sha256=4fcfebb1a045e47918388dbb7a0925e7c3893e58d2bd6c3b3c73ec17a2d8fdb3
-  listen (3.9.0) sha256=db9e4424e0e5834480385197c139cb6b0ae0ef28cc13310cfd1ca78377d59c67
-  logger (1.7.0) sha256=196edec7cc44b66cfb40f9755ce11b392f21f7967696af15d274dde7edff0203
-  mercenary (0.4.0) sha256=b25a1e4a59adca88665e08e24acf0af30da5b5d859f7d8f38fba52c28f405138
-  mini_portile2 (2.8.9) sha256=0cd7c7f824e010c072e33f68bc02d85a00aeb6fce05bb4819c03dfd3c140c289
-  minima (2.5.2) sha256=9c434e3b7bc4a0f0ab488910438ed3757a0502ff1060d172f361907fc38aa45a
-  nokogiri (1.19.0) sha256=e304d21865f62518e04f2bf59f93bd3a97ca7b07e7f03952946d8e1c05f45695
-  nokogiri (1.19.0-aarch64-linux-gnu) sha256=11a97ecc3c0e7e5edcf395720b10860ef493b768f6aa80c539573530bc933767
-  nokogiri (1.19.0-aarch64-linux-musl) sha256=eb70507f5e01bc23dad9b8dbec2b36ad0e61d227b42d292835020ff754fb7ba9
-  nokogiri (1.19.0-arm-linux-gnu) sha256=572a259026b2c8b7c161fdb6469fa2d0edd2b61cd599db4bbda93289abefbfe5
-  nokogiri (1.19.0-arm-linux-musl) sha256=23ed90922f1a38aed555d3de4d058e90850c731c5b756d191b3dc8055948e73c
-  nokogiri (1.19.0-arm64-darwin) sha256=0811dfd936d5f6dd3f6d32ef790568bf29b2b7bead9ba68866847b33c9cf5810
-  nokogiri (1.19.0-x86_64-darwin) sha256=1dad56220b603a8edb9750cd95798bffa2b8dd9dd9aa47f664009ee5b43e3067
-  nokogiri (1.19.0-x86_64-linux-gnu) sha256=f482b95c713d60031d48c44ce14562f8d2ce31e3a9e8dd0ccb131e9e5a68b58c
-  nokogiri (1.19.0-x86_64-linux-musl) sha256=1c4ca6b381622420073ce6043443af1d321e8ed93cc18b08e2666e5bd02ffae4
-  pathutil (0.16.2) sha256=e43b74365631cab4f6d5e4228f812927efc9cb2c71e62976edcb252ee948d589
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-  sass-embedded (1.97.1-aarch64-linux-gnu) sha256=427e7d90e69ac578a2f2f4460d4ad663ce27abd379ce79d17d8426e05079c8c5
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-  sass-embedded (1.97.1-x86_64-linux-gnu) sha256=9a294bb0acb1a539ed19f0e511098a9740b4aab4389e169585e8da1337fbd8b4
-  sass-embedded (1.97.1-x86_64-linux-musl) sha256=c383026b7a70d52b0ef4be73c45cc1399fc65f95e851b0fc9265c8d89f151556
-  terminal-table (3.0.2) sha256=f951b6af5f3e00203fb290a669e0a85c5dd5b051b3b023392ccfd67ba5abae91
-  unicode-display_width (2.6.0) sha256=12279874bba6d5e4d2728cef814b19197dbb10d7a7837a869bab65da943b7f5a
-  webrick (1.9.2) sha256=beb4a15fc474defed24a3bda4ffd88a490d517c9e4e6118c3edce59e45864131
-
 BUNDLED WITH
-  4.0.3
+   2.4.19

From 38f1af7eab2642708c69980c344fa05e813ea7b5 Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Thu, 15 Jan 2026 06:21:42 +0000
Subject: [PATCH 3/3] feat: move mermaid DOM transformation to build time

Optimizes performance by moving the transformation of Mermaid code blocks
from client-side JavaScript to a build-time Jekyll plugin.

- Adds `nokogiri` dependency for HTML parsing
- Adds `_plugins/mermaid_processor.rb` to transform `<pre><code>` to `div.mermaid`
- Removes client-side transformation loop from `_includes/mermaid.html`
- Downgrades `BUNDLED WITH` in Gemfile.lock to 2.4.19 to ensure compatibility