ci: add Pyright

.github/workflows/ci.yml

@@ -171,6 +171,29 @@ jobs:
 
       - run: python -Im tox run -e mypy-pkg
 
+  pyright:
+    name: Check code base & API w/ Pyright
+    runs-on: ubuntu-latest
+    needs: build-package
+
+    steps:
+      - name: Download pre-built packages
+        uses: actions/download-artifact@v3
+        with:
+          name: Packages
+          path: dist
+      - run: tar xf dist/*.tar.gz --strip-components=1
+      - uses: actions/setup-python@v4
+        with:
+          cache: pip
+          python-version-file: .python-version-default
+
+      - run: |
+          python -Im venv .venv
+          .venv/bin/python -Im pip install .[typing]
+          echo "$PWD/.venv/bin" >> $GITHUB_PATH
+      - uses: jakebailey/pyright-action@v1
+
   docs:
     name: Build docs & run doctests
     runs-on: ubuntu-latest
@@ -219,6 +242,7 @@ jobs:
     needs:
       - coverage
       - mypy-pkg
+      - pyright
       - docs
       - install-dev
       - system-package

tox.ini

@@ -65,6 +65,21 @@ deps = pre-commit
 commands = pre-commit run --all-files
 
 
+[testenv:pyright]
+# Install and configure node and pyright
+# Use nodeenv to configure node in the running tox virtual environment
+# Seeing errors using "nodeenv -p"
+# Use npm install -g to install "globally" into the virtual environment
+# Does not run by default locally because it's slow.
+deps = nodeenv
+extras = typing
+commands_pre =
+    nodeenv --prebuilt --node=lts --force {envdir}
+    npm install -g --no-package-lock --no-save pyright
+    pyright --version
+commands = pyright tests/typing src
+
+
 [testenv:mypy-pkg]
 description = Check own code.
 deps = mypy