CI: Switch to using python -m build

Author: effigies

.github/workflows/package.yml

@@ -33,16 +33,10 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Display Python version
         run: python -c "import sys; print(sys.version)"
-      - name: Create virtual environment
-        run: tools/ci/create_venv.sh
-      - name: Build sdist
-        run: tools/ci/build_archive.sh
-        env:
-          INSTALL_TYPE: sdist
-      - name: Build wheel
-        run: tools/ci/build_archive.sh
-        env:
-          INSTALL_TYPE: wheel
+      - name: Install build
+        run: python -m pip install build
+      - name: Build sdist and wheel
+        run: python -m build
       - name: Test PyPI upload
         uses: pypa/gh-action-pypi-publish@master
         with:

tools/ci/build_archive.sh

@@ -11,21 +11,22 @@ echo "INSTALL_TYPE = $INSTALL_TYPE"
 
 set -x
 
-if [ "$INSTALL_TYPE" == "sdist" ]; then
-    python setup.py egg_info  # check egg_info while we're here
-    python setup.py sdist
-    export ARCHIVE=$( ls dist/*.tar.gz )
-elif [ "$INSTALL_TYPE" == "wheel" ]; then
-    python setup.py bdist_wheel
-    export ARCHIVE=$( ls dist/*.whl )
-elif [ "$INSTALL_TYPE" == "archive" ]; then
-    export ARCHIVE="package.tar.gz"
+if [ "$INSTALL_TYPE" = "sdist" -o "$INSTALL_TYPE" = "wheel" ]; then
+    python -m build
+elif [ "$INSTALL_TYPE" = "archive" ]; then
+    ARCHIVE="/tmp/package.tar.gz"
     git archive -o $ARCHIVE HEAD
-elif [ "$INSTALL_TYPE" == "pip" ]; then
-    export ARCHIVE="."
 fi
 
-if [ "${ARCHIVE:0:5}" = "dist/" ]; then
+if [ "$INSTALL_TYPE" = "sdist" ]; then
+    ARCHIVE=$( ls $PWD/dist/*.tar.gz )
+elif [ "$INSTALL_TYPE" = "wheel" ]; then
+    ARCHIVE=$( ls $PWD/dist/*.whl )
+elif [ "$INSTALL_TYPE" = "pip" ]; then
+    ARCHIVE="$PWD"
+fi
+
+if [ "$INSTALL_TYPE" = "sdist" -o "$INSTALL_TYPE" = "wheel" ]; then
     python -m pip install twine
     python -m twine check $ARCHIVE
 fi