Add link checker in CI (#5)

Author: fcollonval

.github/workflows/pages.yml

@@ -18,7 +18,12 @@ jobs:
           python-version: "3.9"
           architecture: "x64"
       - name: Install dependencies
-        run: python -m pip install sphinx sphinx-material recommonmark sphinx-markdown-tables requests
+        run: python -m pip install sphinx sphinx-material recommonmark sphinx-markdown-tables requests pytest-check-links
+      - name: Check links
+        run: |
+          cp extensions.tpl extensions.md
+          pytest --check-links --ignore=_templates/
+          rm extensions.md
       - name: Build website
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

extensions.tpl

@@ -27,7 +27,7 @@ This a list of nice JupyterLab extensions not part of ``jupyterlab-contrib`` org
 ### UI enhancement
 
 - [jupyterlab-topbar](https://github.com/jtpio/jupyterlab-topbar): JupyterLab Top Bar extension
-  - [jupyterlab-topbar-text](./packages/jupyterlab-topbar-text): add and edit custom text
+  - [jupyterlab-topbar-text](https://github.com/jtpio/jupyterlab-topbar/tree/main/packages/jupyterlab-topbar-text): add and edit custom text
   - [jupyterlab-system-monitor](https://github.com/jtpio/jupyterlab-system-monitor): show system metrics (memory usage)
   - [jupyterlab-logout](https://github.com/jtpio/jupyterlab-logout): add a "Log Out" button
   - [jupyterlab-theme-toggle](https://github.com/jtpio/jupyterlab-theme-toggle): switch between the Light and Dark themes