Update build.yml

.github/workflows/build.yml

@@ -38,10 +38,9 @@ jobs:
       with:
         repository: adafruit/actions-ci-circuitpython-libs
         path: actions-ci
-    - name: Install dependencies
-      # (e.g. - apt-get: gettext, etc; pip: circuitpython-build-tools, requirements.txt; etc.)
+    - name: Install repo, dependencies
       run: |
-        source actions-ci/install.sh
+        pip install .
     - name: Pip install Sphinx, pre-commit
       run: |
         pip install --force-reinstall Sphinx sphinx-rtd-theme pre-commit
@@ -60,16 +59,15 @@ jobs:
     - name: Build docs
       working-directory: docs
       run: sphinx-build -E -W -b html . _build/html
-    - name: Check For setup.py
+    - name: Check For pyproject.toml
       id: need-pypi
       run: |
-        echo ::set-output name=setup-py::$( find . -wholename './setup.py' )
+        echo ::set-output name=pyproject-toml::$( find . -wholename './setup.py' )
     - name: Build Python package
-      if: contains(steps.need-pypi.outputs.setup-py, 'setup.py')
+      if: contains(steps.need-pypi.outputs.pyproject-toml, 'pyproject.toml')
       run: |
-        pip install --upgrade setuptools wheel twine readme_renderer testresources
-        python setup.py sdist
-        python setup.py bdist_wheel --universal
+        pip install --upgrade build twine
+        python -m build
         twine check dist/*
     - name: Setup problem matchers
       uses: adafruit/circuitpython-action-library-ci-problem-matchers@v1