Add dedicated package build and publish action (#323)

Author: dstansby

.github/workflows/publish.yml

@@ -0,0 +1,56 @@
+name: Publish Python 🐍 distribution 📦 to PyPI
+
+on: push
+
+jobs:
+  build:
+    name: Build distribution 📦
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v6
+      with:
+        persist-credentials: false
+
+    - name: Set up Python
+      uses: actions/setup-python@v6
+      with:
+        python-version: "3.x"
+
+    - name: Install pypa/build
+      run: >-
+        python3 -m
+        pip install
+        build
+        --user
+
+    - name: Build a binary wheel and a source tarball
+      run: python3 -m build
+
+    - name: Store the distribution packages
+      uses: actions/upload-artifact@v5
+      with:
+        name: python-package-distributions
+        path: dist/
+
+  publish-to-pypi:
+    name: >-
+      Publish Python 🐍 distribution 📦 to PyPI
+    if: startsWith(github.ref, 'refs/tags/')  # only publish to PyPI on tag pushes
+    needs:
+      - build
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/napari-matplotlib  # Replace <package-name> with your PyPI project name
+    permissions:
+      id-token: write  # IMPORTANT: mandatory for trusted publishing
+
+    steps:
+      - name: Download all the dists
+        uses: actions/download-artifact@v6
+        with:
+          name: python-package-distributions
+          path: dist/
+      - name: Publish distribution 📦 to PyPI
+        uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0

.github/workflows/test_and_deploy.yml .github/workflows/test.yml.github/workflows/test_and_deploy.yml renamed to .github/workflows/test.yml

@@ -86,34 +86,3 @@ jobs:
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: false
-
-  deploy:
-    # this will run when you have tagged a commit, starting with "v*"
-    # and requires that you have put your twine API key in your
-    # github secrets (see readme for details)
-    needs: [test]
-    runs-on: ubuntu-latest
-    if: contains(github.ref, 'tags')
-    environment: pypi-deploy
-    permissions:
-      id-token: write
-    steps:
-      - uses: actions/checkout@v6
-        with:
-          persist-credentials: false
-      - name: Set up Python
-        uses: actions/setup-python@v6
-        with:
-          python-version: "3.x"
-      - name: Install build
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install --upgrade build
-
-      - name: Build package
-        run: |
-          git tag
-          python -m build .
-
-      - name: Publish package
-        uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0