From 0a133bb27ee2c13e2521c1f8a2cc5d023294e46f Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Mon, 6 May 2024 13:17:29 +0900
Subject: Automatically update GitHub Pages from master branch

Remove tool/update-gh-pages as it is no longer necessary.
---
 .github/workflows/github-pages.yml | 37 +++++++++++++++++++++++++++++++++++++
 tool/update-gh-pages               | 22 ----------------------
 2 files changed, 37 insertions(+), 22 deletions(-)
 create mode 100644 .github/workflows/github-pages.yml
 delete mode 100755 tool/update-gh-pages

diff --git a/.github/workflows/github-pages.yml b/.github/workflows/github-pages.yml
new file mode 100644
index 00000000..f1e5bf18
--- /dev/null
+++ b/.github/workflows/github-pages.yml
@@ -0,0 +1,37 @@
+name: GitHub Pages
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ruby
+          bundler-cache: true
+      - run: bundle install
+      - run: rake rdoc
+      - name: Upload GitHub Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: html
+
+  deploy:
+    needs: build
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4
diff --git a/tool/update-gh-pages b/tool/update-gh-pages
deleted file mode 100755
index 8eb546a9..00000000
--- a/tool/update-gh-pages
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/sh
-set -e
-
-# Generates RDoc HTML and update gh-pages branch.
-
-HEAD_DESCRIPTION=$(git describe --dirty --always --abbrev=12)
-
-[ -d html ] &&
-	rm -r html
-rake rdoc
-
-[ ! -d tmp/gh-pages ] &&
-	git worktree add tmp/gh-pages gh-pages
-(
-	cd tmp/gh-pages
-
-	git rm -r .
-	cp -r ../../html/* .
-	rm created.rid js/*.gz # to avoid unnecessary change :x
-	git add .
-	git commit -m "Sync with $HEAD_DESCRIPTION"
-)
-- 
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