Add GitHub Actions for Hugo

I wrote these myself, with some help from ChatGPT.
I originally wrote these for my personal web site.

.github/workflows/hugo-add-theme.yml

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+name: Hugo - Add Theme
+
+# Original source: htts://github.com/boochtek/hugo-add-theme
+# Original author: Craig Buchek (@booch) with help from ChatGPT.
+
+on:
+    # Run this workflow manually from the Actions tab.
+    workflow_dispatch:
+        inputs:
+            theme_url:
+                description: "URL of the theme to add"
+                required: true
+                type: string
+
+permissions:
+    contents: write
+
+defaults:
+    run:
+        shell: bash
+
+jobs:
+    gugo-add-theme:
+        runs-on: ubuntu-latest
+        env:
+            HUGO_VERSION: 0.120.2
+        steps:
+            - name: Install Hugo CLI
+              run: |
+                  wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb \
+                  && sudo dpkg -i ${{ runner.temp }}/hugo.deb
+            - name: Checkout
+              uses: actions/checkout@v4
+              with:
+                  submodules: recursive
+                  fetch-depth: 0
+            - name: Add git submodule pointing at the theme
+              run: |
+                  THEME_URL="${{ inputs.theme_url }}"
+                  THEME_NAME="$(basename ${THEME_URL%.*})"
+                  git submodule add "$THEME_URL" "themes/${THEME_NAME}"
+                  git submodule update --init --recursive
+            - name: Add theme to config # TODO
+              run: |
+                  echo "OK"

.github/workflows/hugo-init.yml

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+name: Hugo - Initialize
+
+# Original source: htts://github.com/boochtek/hugo-init
+# Original author: Craig Buchek (@booch).
+
+# TODO:
+#   Tell user what to do next.
+#   Determine the latest Hugo version.
+#   Change baseURL in config file to "https://$(cat CNAME)/", if it exists.
+#   Allow setting languageCode to something other than 'en-us'.
+#   Allow setting title to something other than 'My New Hugo Site'.
+
+on:
+    # Run manually from the Actions tab.
+    workflow_dispatch:
+
+# Set permissions of the GITHUB_TOKEN to allow pushing.
+permissions:
+    contents: write
+
+defaults:
+    run:
+        shell: bash
+
+jobs:
+    hugo-init:
+        runs-on: ubuntu-latest
+        env:
+            HUGO_VERSION: "0.120.4"
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v4
+              with:
+                  submodules: recursive
+                  fetch-depth: 0
+            - name: Make sure we don't already have a Hugo config
+              run: |
+                  [[ ! -f hugo.toml && ! -f hugo.yaml && ! -f hugo.json && ! -d config ]]
+            - name: Install Hugo CLI
+              run: |
+                  HUGO_DEB_URL="https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb"
+                  wget -O "${{ runner.temp }}/hugo.deb" "$HUGO_DEB_URL"
+                  sudo dpkg -i "${{ runner.temp }}/hugo.deb"
+            - name: Initalize Hugo
+              run: |
+                  hugo new site . --force
+            - name: Make sure any new empty directories get committed
+              run: |
+                  find . -type d -empty -not -regex '.*/\.git/.*' -exec touch '{}/.gitkeep' ';'
+            - name: Commit changes
+              uses: EndBug/add-and-commit@v9
+              with:
+                  message: Add Hugo

.github/workflows/hugo-publish-github-pages.yml

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+name: Hugo - Publish to GitHub Pages
+
+# Original source: htts://github.com/boochtek/hugo-publish-github-pages
+# Original author: Craig Buchek (@booch) with help from ChatGPT
+
+on:
+    # Run on pushes to the `main` branch.
+    push:
+        branches:
+            - main
+
+    # Allow running this workflow manually from the Actions tab.
+    workflow_dispatch:
+
+# Set permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages.
+permissions:
+    contents: read
+    pages: write
+    id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+    group: "pages"
+    cancel-in-progress: false
+
+defaults:
+    run:
+        shell: bash
+
+jobs:
+    hugo-build:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Install Hugo CLI
+              run: |
+                  LATEST_RELEASE_JSON=$(curl -s https://api.github.com/repos/gohugoio/hugo/releases/latest)
+                  HUGO_VERSION=$(echo $LATEST_RELEASE_JSON | jq -r '.tag_name')
+                  HUGO_DEB_URL="https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb"
+                  wget -O "${{ runner.temp }}/hugo.deb" "$HUGO_DEB_URL"
+                  sudo dpkg -i ${{ runner.temp }}/hugo.deb
+
+            # - name: Install Dart Sass
+            #   run: sudo snap install dart-sass
+
+            - name: Checkout
+              uses: actions/checkout@v4
+              with:
+                  submodules: recursive
+                  fetch-depth: 0
+
+            - name: Setup Pages
+              id: pages
+              uses: actions/configure-pages@v3
+
+            - name: Install Node.js dependencies
+              run: "[[ -f package-lock.json || -f npm-shrinkwrap.json ]] && npm ci || true"
+
+            - name: Build with Hugo
+              env:
+                  # For maximum backward compatibility with Hugo modules
+                  HUGO_ENVIRONMENT: production
+                  HUGO_ENV: production
+              run: |
+                  hugo \
+                    --gc \
+                    --minify \
+                    --baseURL "${{ steps.pages.outputs.base_url }}/"
+
+            - name: Upload artifact
+              uses: actions/upload-pages-artifact@v2
+              with:
+                  path: ./public
+
+    deploy:
+        environment:
+            name: github-pages
+            url: ${{ steps.deployment.outputs.page_url }}
+        runs-on: ubuntu-latest
+        needs: build
+        steps:
+            - name: Deploy to GitHub Pages
+              id: deployment
+              uses: actions/deploy-pages@v2