gh action uses self-hosted runner with pixi

Author: parmentelat

.github/workflows/myst-to-pages.yml

@@ -37,26 +37,42 @@ concurrency:
 
 jobs:
   build-and-deploy:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
         with:
-          node-version: 24
-      - name: Install MyST Markdown
-        run: npm install -g mystmd
+          clean: true
+      - name: Clean up previous pixi installation
+        run: |
+          rm -rf /containers/github-actions/.pixi || true
+      - name: Setup pixi
+        uses: prefix-dev/setup-pixi@v0.8.1
+        with:
+          pixi-version: latest
+          cache: true
+      - name: Setup dependencies
+        run: |
+          pixi install
       - name: Install requirements.txt
-        run: "if [ -f requirements.txt ]; then pip install -r requirements.txt; fi"
+        run: |
+          if [ -f requirements.txt ]; then
+              packages=$(grep -v '^#' requirements.txt)
+              pixi add --pypi $packages
+          fi
+      - name: Install MyST Markdown
+        run: |
+          pixi run npm install -g mystmd
       - name: Build HTML Assets
-        # run: (cd notebooks; myst build --execute --html)
-        run: export PYTHONPATH=$(pwd)/modules; myst build --execute --html
+        run: |
+          export PYTHONPATH=$(pwd)/modules
+          pixi run myst build --execute --html
       - name: Setup Pages
         uses: actions/configure-pages@v3
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:
-          path: './notebooks/_build/html'
+          path: './_build/html'
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v4