リダイレクト機能追加

Author: Fukusan64

Gemfile

@@ -11,6 +11,7 @@ group :jekyll_plugins do
   gem 'jekyll-include-cache'
   gem 'jekyll-sitemap'
   gem 'jekyll-liquify'
+  gem 'jekyll-redirect-from'
 
   # No need this gem because we build by GitHub Actions and serve on Pages.
   # gem 'github-pages'

Gemfile.lock

@@ -104,6 +104,8 @@ GEM
       liquid
       logger
       redcarpet
+    jekyll-redirect-from (0.16.0)
+      jekyll (>= 3.3, < 5.0)
     jekyll-sass-converter (3.1.0)
       sass-embedded (~> 1.75)
     jekyll-sitemap (1.4.0)
@@ -218,6 +220,7 @@ DEPENDENCIES
   jekyll-feed
   jekyll-include-cache
   jekyll-liquify
+  jekyll-redirect-from
   jekyll-sitemap
   mini_racer
   rake

_config.yml

@@ -28,6 +28,7 @@ plugins:
   - jekyll-include-cache
   - jekyll-sitemap # This must be LAST to include contents generated by gems above
   - jekyll-liquify # This enable to use variables in frontmatter
+  - jekyll-redirect-from
 
 sass:
   style:     compressed

_posts/2025-07-21-contest-terms.md

@@ -2,7 +2,8 @@
 layout: post
 title: DojoCon Japan 2025 プログラミングコンテスト 参加規約
 date: 2025-07-21T00:00:00 UTC+09:00
-permalink: /contests/terms.html
+permalink: /contests/terms/
+redirect_from: /contests/terms.html
 ---
 <img src="/img/common/coderdojo-nameplate.webp" loading="lazy" alt="DojoCon Japan Cover Photo"
   title="DojoCon Japan Cover Photo" class="mb-4" />

_posts/2025-08-02-contest-how-to-apply.md

@@ -5,7 +5,8 @@ title-in-news-list: 『DojoCon Japan 2025 プログラミングコンテスト
 date: 2025-08-02T01:00:00 UTC+09:00
 categories: news
 tags: 企画
-permalink: /contests/how-to-apply.html
+permalink: /contests/how-to-apply/
+redirect_from: /contests/how-to-apply.html
 ---
 <style>
 img {