From b26f8d8146b82c327738cf8a1fdfaec41727ec9c Mon Sep 17 00:00:00 2001
From: neveler <55753029+neveler@users.noreply.github.com>
Date: Thu, 20 Nov 2025 15:56:56 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=85=88=E4=BD=BF=E7=94=A8=20WebP=20?=
 =?UTF-8?q?=E7=89=88=E6=9C=AC=E7=9A=84=E5=9B=BE=E7=89=87=EF=BC=88=E5=A6=82?=
 =?UTF-8?q?=E6=9E=9C=E5=8F=AF=E7=94=A8=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 _plugins/auto-link.rb |  4 ++--
 _plugins/auto-webp.rb | 28 ++++++++++++++++++++++++++++
 _plugins/hook.rb      |  7 +++++++
 3 files changed, 37 insertions(+), 2 deletions(-)
 create mode 100644 _plugins/auto-webp.rb
 create mode 100644 _plugins/hook.rb

diff --git a/_plugins/auto-link.rb b/_plugins/auto-link.rb
index a2d4e867..9ef88772 100644
--- a/_plugins/auto-link.rb
+++ b/_plugins/auto-link.rb
@@ -1,8 +1,8 @@
 require "nokogiri"
 require "addressable/uri"
 
-Jekyll::Hooks.register [:pages, :documents], :post_convert do |doc|
-  next unless doc.output_ext == ".html"
+def auto_link(doc)
+  return unless doc.output_ext == ".html"
 
   site = doc.site
   liquid_context = Liquid::Context.new({}, {}, { site: site })
diff --git a/_plugins/auto-webp.rb b/_plugins/auto-webp.rb
new file mode 100644
index 00000000..e2f02a6c
--- /dev/null
+++ b/_plugins/auto-webp.rb
@@ -0,0 +1,28 @@
+require "nokogiri"
+require "addressable/uri"
+
+def auto_webp(doc)
+  return unless doc.output_ext == ".html"
+
+  site = doc.site
+  liquid_context = Liquid::Context.new({}, {}, { site: site })
+
+  fragment = Nokogiri::HTML::DocumentFragment.parse(doc.content)
+  fragment.css("img[src^=\"/assets/\"]").each do |item|
+    next unless item["src"]
+    uri = Addressable::URI.parse(item["src"])
+    next if uri.nil?
+
+    source_path = uri.path
+    webp_path = "#{source_path}.webp"
+    begin
+      uri.path = Liquid::Template.parse("{% link #{source_path[1..]} %}").render!(liquid_context)
+      item["src"] = uri.to_s
+      uri.path = Liquid::Template.parse("{% link #{webp_path[1..]} %}").render!(liquid_context)
+      item.wrap("<picture><source srcset=\"#{uri.to_s}\" type=\"image/webp\"></picture>")
+    rescue => e
+      # Ignored
+    end
+  end
+  doc.content = fragment.to_html
+end
diff --git a/_plugins/hook.rb b/_plugins/hook.rb
new file mode 100644
index 00000000..c188237f
--- /dev/null
+++ b/_plugins/hook.rb
@@ -0,0 +1,7 @@
+require_relative "auto-link"
+require_relative "auto-webp"
+
+Jekyll::Hooks.register [:pages, :documents], :post_convert do |doc|
+  auto_webp(doc)
+  auto_link(doc)
+end