添加 post_process 插件 (#445)

Gemfile

@@ -33,3 +33,5 @@ gem "http_parser.rb", "0.8.0", :platforms => [:jruby]
 
 # plugin dependencies
 gem "webp-ffi", "0.4.0" if ENV["ENABLE_WEBP_AUTO_CONVERSION"] == "true" || ENV["DRONE"] == "true"
+gem "mini_racer", "0.20.0" if ENV["ENABLE_EMBEDDED_V8"] == "true" || ENV["DRONE"] == "true"
+gem "terser", "1.2.7"

_config.yml

@@ -316,12 +316,6 @@ compress_html:
   ignore:
     envs: development
 
-head_scripts:
-  - /assets/js/settings.js
-  - /assets/js/theme.js
-after_footer_scripts:
-  - /assets/js/plugins/jquery.auto-redirect.js
-
 # jekyll-feed
 feed:
   collections:
@@ -330,3 +324,29 @@ feed:
     - modpack
     - eula
     - multiplayer
+
+post_process:
+  terser:
+    /assets/js/main.min.js:
+      - /assets/js/settings.js
+      - /assets/js/theme.js
+      - /assets/js/meta.js
+      - /assets/js/vendor/jquery/jquery-3.6.0.js
+      - /assets/js/plugins/gumshoe.js
+      - /assets/js/plugins/jquery.ba-throttle-debounce.js
+      - /assets/js/plugins/jquery.fitvids.js
+      - /assets/js/plugins/jquery.greedy-navigation.js
+      - /assets/js/plugins/jquery.magnific-popup.js
+      - /assets/js/plugins/smooth-scroll.js
+      - /assets/js/plugins/jquery.auto-redirect.js
+      - /assets/js/_main.js
+  remove_dirs:
+    - /assets/images/
+    - /assets/js/plugins/
+    - /assets/js/vendor/
+  remove_files:
+    - /assets/js/meta.js
+    - /assets/js/_main.js
+    - /assets/js/theme.js
+    - /assets/js/settings.js
+    - /assets/js/main.min.js.map

_layouts/document.html

@@ -5,10 +5,11 @@ layout: single
 {{ content }}
 
 {% if page.author or page.contributors or jekyll.environment == 'production' and page.hits  %}
-<script src="{{ '/assets/js/meta.js' | relative_url }}"></script>
 <script>
+  window.addEventListener("load", () => {
     {%- if page.author %}appendMeta("{{ page.author }}", "fas fa-user-pen");{% endif -%}
     {%- for contributor in page.contributors %}appendMeta("{{ contributor }}", "fas fa-user-pen");{% endfor -%}
     {%- if jekyll.environment == 'production' and page.hits %}hits({{ page.url | absolute_url | jsonify }});{% endif -%}
+  });
 </script>
 {% endif %}

_layouts/settings.html

@@ -46,10 +46,12 @@ layout: single
 {% endfor %}
 
 <script>
+  window.addEventListener("load", () => {
     for (const settingItem of document.getElementsByClassName("setting-item")) {
       settingItem.addEventListener("change", ({ target }) => settings.set(target.name, target.value));
       settings.onChange(settingItem.name, (value) => settingItem.type === "radio" && (settingItem.checked = settingItem.value === value));
     }
+  });
 </script>
 
 <style>.notice label input { display: inline }</style>

_plugins/post_process.rb

@@ -0,0 +1,51 @@
+require "terser"
+
+ExecJS.runtime = ExecJS::Runtimes::MiniRacer if ExecJS::Runtimes::MiniRacer.available?
+
+Jekyll::Hooks.register :site, :post_write do |site|
+  config = site.config["post_process"]
+  next unless config
+
+  terser = config["terser"]
+  if terser.is_a?(Hash)
+    terser.each do |terser_output, terser_inputs|
+      next unless terser_output.is_a?(String) && terser_inputs.is_a?(Array)
+
+      terser_codes = []
+      terser_inputs_all_exist = true
+      terser_inputs.each do |file|
+        destination = File.join(site.dest, file)
+        if File.exist?(destination)
+          terser_codes << File.read(destination, encoding: "UTF-8")
+        else
+          terser_inputs_all_exist = false
+          break
+        end
+      end
+
+      if terser_inputs_all_exist
+        destination = File.join(site.dest, terser_output.to_s)
+        File.write(destination, Terser.compile(terser_codes.join(";")))
+        Jekyll.logger.info "Post Process:", "terser #{terser_output}"
+      end
+    end
+  end
+
+  remove_files = config["remove_files"]
+  if remove_files.is_a?(Array)
+    remove_files.each do |file|
+      destination = File.join(site.dest, file)
+      File.delete(destination) if File.exist?(destination)
+      Jekyll.logger.info "Post Process:", "remove_files #{file}"
+    end
+  end
+
+  remove_dirs = config["remove_dirs"]
+  if remove_dirs.is_a?(Array)
+    remove_dirs.each do |dir|
+      destination = File.join(site.dest, dir)
+      FileUtils.rm_rf(destination) if File.directory?(destination)
+      Jekyll.logger.info "Post Process:", "remove_dirs #{dir}"
+    end
+  end
+end