Jekyll to Hugo migration

.github/workflows/build.yml

@@ -1,44 +1,119 @@
 name: Build the website
+
 on:
   workflow_dispatch:
+  push:
   pull_request:
   merge_group:
 
+permissions:
+  contents: read
+
+concurrency:
+  group: build-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  GO_VERSION: "1.27.1"
+  HUGO_VERSION: "0.166.0"
+  NODE_VERSION: "24.18.0"
+
 jobs:
   pre-commit:
-    name: pre-commit checks
+    name: Pre-commit checks
     runs-on: ubuntu-latest
+    timeout-minutes: 15
+
     steps:
-      - uses: actions/checkout@v6
-      - name: Setup python
-        uses: actions/setup-python@v6
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+
+      - name: Set up Python
+        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6
         with:
-         python-version: '3.x'
+          python-version: "3.14"
+
+      - name: Cache pre-commit environments
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6
+        with:
+          path: ~/.cache/pre-commit
+          key: pre-commit-${{ runner.os }}-${{ hashFiles('.pre-commit-config.yaml') }}
+
+      - name: Install pre-commit
+        run: python -m pip install "pre-commit==4.6.1"
+
       - name: Run pre-commit
-        uses: pre-commit/action@v3.0.1
+        run: pre-commit run --all-files --show-diff-on-failure --color=always
 
   build:
+    name: Hugo build and validation
     needs: pre-commit
     runs-on: ubuntu-latest
+    timeout-minutes: 30
+
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
-          submodules: true
+          fetch-depth: 0
+          submodules: false
           lfs: false
-          path: website
-      - uses: ruby/setup-ruby@v1
+
+      - name: Set up Go
+        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6
         with:
-          bundler-cache: true
-          working-directory: website
-      - name: Build site
-        working-directory: website
-        env:
-          JEKYLL_ENV: production
-        run: bundle exec jekyll build
-      - name: Upload site
-        uses: actions/upload-artifact@v7
+          go-version: ${{ env.GO_VERSION }}
+          cache-dependency-path: go.sum
+
+      - name: Set up Hugo
+        uses: peaceiris/actions-hugo@2752ce1d29631191ea3f27c23495fa06139a5b78 # v3
+        with:
+          hugo-version: ${{ env.HUGO_VERSION }}
+          extended: true
+
+      - name: Set up Node.js
+        uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: npm
+          cache-dependency-path: tools/package-lock.json
+
+      - name: Install Node.js dependencies
+        run: npm ci
+        working-directory: tools
+
+      - name: Test Algolia indexing
+        run: npm run test:algolia
+        working-directory: tools
+
+      - name: Verify Hugo modules
+        run: hugo mod verify
+
+      - name: Build Hugo site
+        run: hugo --gc --minify --cleanDestinationDir --environment production
+
+      - name: Validate Algolia records
+        run: npm run algolia:index -- --dry-run
+        working-directory: tools
+
+      - name: Install XML validation tools
+        run: sudo apt-get update && sudo apt-get install --yes libxml2-utils
+
+      - name: Validate generated output
+        run: |
+          test "$(cat public/CNAME)" = "precice.org"
+          test -s public/feed.xml
+          test -s public/sitemap.xml
+          test -s public/robots.txt
+          grep -Fx 'Sitemap: https://precice.org/sitemap.xml' public/robots.txt
+          xmllint --noout \
+            public/feed.xml \
+            public/sitemap.xml
+
+      - name: Upload Hugo site
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
         with:
-          name: site
-          path: website/_site
+          name: hugo-site
+          path: public
           if-no-files-found: error
+          retention-days: 7

.github/workflows/deploy.yml

@@ -1,110 +1,125 @@
 name: Build and deploy the website
+
 on:
   workflow_dispatch:
-  workflow_call:
   push:
     branches:
       - master
 
+permissions:
+  contents: read
+
 concurrency:
-  group: website-deploy
-  cancel-in-progress: false # wait
+  group: production-pages
+  cancel-in-progress: false
+
+env:
+  BASE_URL: "https://precice.org/"
+  GO_VERSION: "1.27.1"
+  HUGO_VERSION: "0.166.0"
 
 jobs:
   pre-commit:
-    name: pre-commit checks
+    name: Pre-commit checks
     runs-on: ubuntu-latest
+    timeout-minutes: 15
+
     steps:
-      - uses: actions/checkout@v6
-      - name: Setup python
-        uses: actions/setup-python@v6
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+
+      - name: Set up Python
+        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6
         with:
-         python-version: '3.x'
+          python-version: "3.14"
+
+      - name: Cache pre-commit environments
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6
+        with:
+          path: ~/.cache/pre-commit
+          key: pre-commit-${{ runner.os }}-${{ hashFiles('.pre-commit-config.yaml') }}
+
+      - name: Install pre-commit
+        run: python -m pip install "pre-commit==4.6.1"
+
       - name: Run pre-commit
-        uses: pre-commit/action@v3.0.1
+        run: pre-commit run --all-files --show-diff-on-failure --color=always
 
-  build-deploy:
+  build:
+    name: Build production site
     needs: pre-commit
     runs-on: ubuntu-latest
+    timeout-minutes: 45
+
     steps:
       - name: Checkout website
-        uses: actions/checkout@v6
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
-          submodules: true
-          lfs: false
           path: website
           fetch-depth: 0 # full history required to determine last edit
+          submodules: false
+          lfs: false
 
-      - name: Fetch - precice develop
-        uses: actions/checkout@v6
+      - name: Set up Go
+        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6
         with:
-          repository: precice/precice
-          ref: develop
-          path: develop
+          go-version: ${{ env.GO_VERSION }}
+          cache-dependency-path: website/go.sum
 
-      - name: Fetch - precice main
-        uses: actions/checkout@v6
+      - name: Set up Hugo
+        uses: peaceiris/actions-hugo@2752ce1d29631191ea3f27c23495fa06139a5b78 # v3
         with:
-          repository: precice/precice
-          ref: main
-          path: main
-          fetch-tags: true
+          hugo-version: ${{ env.HUGO_VERSION }}
+          extended: true
 
-      - name: Patch doxyfiles
-        run: website/doxygen/patch.sh
+      - name: Install XML validation tools
+        run: sudo apt-get update && sudo apt-get install --yes libxml2-utils
 
-      - name: Install dependencies
+      - name: Log tool versions
         run: |
-          sudo apt-get -yyq update
-          sudo apt-get -yyq install graphviz plantuml
-
-          # Install latest doxygen binary
-          mkdir doxygen
-          curl -sL https://github.com/doxygen/doxygen/releases/download/Release_1_14_0/doxygen-1.14.0.linux.bin.tar.gz | tar -xz --strip-components=1 -C doxygen
-          readlink -f doxygen/bin >> $GITHUB_PATH
-
-      - name: Check doxygen version
-        run: doxygen --version
-
-      - name: Setup ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          bundler-cache: true
-          working-directory: website
+          go version
+          hugo version
 
-      - name: Fetch full history for submodules
+      - name: Verify Hugo modules
         working-directory: website
-        run: git submodule foreach --recursive "git fetch --unshallow --all 2>/dev/null || git fetch --all"
+        run: hugo mod verify
 
-      - name: Build website
+      - name: Build Hugo site
         working-directory: website
-        env:
-          JEKYLL_ENV: production
-        run: bundle exec jekyll build
-
-      - name: Build doxygen - develop
-        working-directory: develop
-        run: doxygen
-        env:
-          PLANTUML_JAR_PATH: /usr/share/plantuml/plantuml.jar
-
-      - name: Build doxygen - main
-        working-directory: main
-        run: doxygen
-        env:
-          PLANTUML_JAR_PATH: /usr/share/plantuml/plantuml.jar
-
-      - name: Assemble website
+        run: hugo --gc --minify --cleanDestinationDir --environment production --baseURL "${BASE_URL}"
+
+      - name: Validate assembled site
         run: |
-          mv website/_site public
-          mv develop/docs/source-code-documentation/html public/doxygen/develop
-          mv main/docs/source-code-documentation/html public/doxygen/main
+          test -s website/public/index.html
+          test "$(cat website/public/CNAME)" = "precice.org"
+          test -s website/public/feed.xml
+          test -s website/public/sitemap.xml
+          test -s website/public/robots.txt
+          grep -Fx 'Sitemap: https://precice.org/sitemap.xml' website/public/robots.txt
+          xmllint --noout \
+            website/public/feed.xml \
+            website/public/sitemap.xml
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9 # v5
+        with:
+          path: website/public
 
-      - name: List website files
-        run: find public
+  deploy:
+    name: Deploy production site
+    if: github.ref == 'refs/heads/master'
+    needs: build
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
 
-      - name: Deploy
-        uses: peaceiris/actions-gh-pages@v4
-        with:
-          github_token: ${{ secrets.JEKYLL_PAT }}
-          publish_dir: ./public
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@cd2ce8fcbc39b97be8ca5fce6e763baed58fa128 # v5