Recompile DSA notebooks and add smoke tests

.github/workflows/notebook-smoke.yml

@@ -0,0 +1,78 @@
+name: Notebook smoke
+
+on:
+  pull_request:
+    paths:
+      - "_notebooks/**/*.ipynb"
+      - "scripts/smoke_notebooks.py"
+      - "scripts/smoke.yml"
+      - "requirements-smoke.txt"
+      - ".github/workflows/notebook-smoke.yml"
+  schedule:
+    # Weekly full suite (Sunday 04:00 UTC)
+    - cron: "0 4 * * 0"
+  workflow_dispatch:
+    inputs:
+      only:
+        description: "Optional notebook prefixes (space-separated), e.g. 01 12. Empty = all except skipped."
+        required: false
+        default: ""
+
+concurrency:
+  group: notebook-smoke-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  smoke:
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: pip
+          cache-dependency-path: requirements-smoke.txt
+
+      - name: Install smoke dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -r requirements-smoke.txt
+
+      - name: Cache pods / notebook data downloads
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.pods_data
+            _notebooks/data
+          key: pods-data-${{ runner.os }}-${{ hashFiles('requirements-smoke.txt') }}
+          restore-keys: |
+            pods-data-${{ runner.os }}-
+
+      - name: Run notebook smoke tests
+        env:
+          MPLBACKEND: Agg
+          JUPYTER_PLATFORM_DIRS: "1"
+        run: |
+          set -euo pipefail
+          ONLY="${{ github.event.inputs.only }}"
+          if [ -n "${ONLY}" ]; then
+            # shellcheck disable=SC2086
+            python scripts/smoke_notebooks.py --only ${ONLY}
+          else
+            python scripts/smoke_notebooks.py
+          fi
+
+      - name: Upload smoke results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: notebook-smoke-results
+          path: |
+            _notebooks/test-results/summary.json
+            _notebooks/test-results/*.ok
+            _notebooks/test-results/*.fail
+          if-no-files-found: ignore

.gitignore

@@ -0,0 +1,5 @@
+.ipynb_checkpoints/
+.DS_Store
+__pycache__/
+.venv/
+_notebooks/test-results/

_lamd/_lamd.yml

@@ -19,10 +19,13 @@ notesdir: ../_notes/
 notebooksdir: ../_notebooks/
 practicalsdir: ../_practicals/
 snippetsdir: $HOME/lawrennd/snippets
+macrosdir: $HOME/lawrennd/lamd/lamd/macros
+people: ../_people/people.yml
 writediagramsdir: . # Where the build writes newly created diagrams (not the shared library)
 scriptsdir: ./scripts/
 diagramsdir: $HOME/lawrennd/slides/diagrams/ # Filesystem SOURCE library. copy_web_diagrams reads from here; not a URL
 diagramswebpath: slides/diagrams/ # Published URL path after url+baseurl. HTML \diagramsDir uses this, not diagramsdir
+slidesheader: slides-header.html
 posts: True
 docx: False
 notespdf: False