Add script and workflow to verify index.toml

.github/workflows/verify_index.yml

@@ -0,0 +1,21 @@
+name: Verify index
+
+on:
+  pull_request:
+    paths:
+      - "notebook/*.ipynb"
+      - "index.toml"
+
+jobs:
+  verify-index:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Verify index content
+        run: python scripts/verify_index.py

scripts/verify_index.py

@@ -0,0 +1,43 @@
+from pathlib import Path
+
+import tomllib
+
+if __name__ == "__main__":
+    root_path = Path(__file__).parent.parent
+
+    index_file = root_path / "index.toml"
+    index_data = tomllib.loads(index_file.read_text())
+
+    notebooks = list(root_path.glob("notebooks/*.ipynb"))
+
+    failed = False
+    indexed_notebooks = [
+        notebook["notebook"]
+        for notebook in index_data["cookbook"]
+        if "notebook" in notebook
+    ]
+    for notebook in notebooks:
+        if notebook.name not in indexed_notebooks:
+            print(f"Notebook '{notebook.name}' not found in 'index.toml'")
+            failed = True
+
+    for notebook in index_data["cookbook"]:
+        if "notebook" not in notebook:
+            print(f"Notebook '{notebook}' has no file")
+            failed = True
+            continue
+
+        if not (root_path / f"notebooks/{notebook['notebook']}").exists():
+            print(f"Notebook '{notebook['notebook']}' file not found")
+            failed = True
+
+        if "title" not in notebook:
+            print(f"Notebook '{notebook['notebook']}' has no title")
+            failed = True
+
+        if not notebook.get("topics"):
+            print(f"Notebook '{notebook['notebook']}' has no topics")
+            failed = True
+
+    if failed:
+        exit(1)