Update workflows to also validate version number consistency

.github/workflows/ensure-release-tagged.yaml

@@ -1,26 +0,0 @@
-name: Ensure Tagged Commits on Release
-
-on:
-  pull_request:
-    branches:
-      - release
-
-jobs:
-  check_tag:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Check out code
-      uses: actions/checkout@v4
-      with:
-        fetch-depth: 0
-
-    - name: Check if base commit of PR is tagged
-      run: |
-        BASE_COMMIT=$(jq -r .pull_request.base.sha < "$GITHUB_EVENT_PATH")
-        TAG=$(git tag --contains $BASE_COMMIT)
-        if [ -z "$TAG" ]; then
-          echo "Base commit of PR is not tagged. PRs onto release must be tagged with the version number."
-          exit 1
-        fi
-        echo "Base commit of PR is tagged. Check passed."
-

.github/workflows/ensure-version-consistency.yaml

@@ -0,0 +1,46 @@
+name: Ensure Version Consistency on PR to Release
+
+on:
+  pull_request:
+    branches:
+      - release
+
+jobs:
+  check_version_and_tag:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Necessary to fetch all tags for comparison
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
+
+      - name: Extract version from pyproject.toml
+        run: |
+          echo "Extracting version from pyproject.toml"
+          VERSION=$(python -c 'import toml; print(toml.load("pyproject.toml")["project"]["version"])')
+          echo "Version in pyproject.toml is $VERSION"
+          echo "VERSION=$VERSION" >> $GITHUB_ENV
+
+      - name: Get tag for the PR's head commit
+        run: |
+          PR_HEAD_SHA=$(jq -r .pull_request.head.sha < "$GITHUB_EVENT_PATH")
+          TAG=$(git tag --contains $PR_HEAD_SHA)
+          echo "Tag on PR's head commit is $TAG"
+          echo "TAG=$TAG" >> $GITHUB_ENV
+
+      - name: Compare version and tag
+        run: |
+          if [ -z "$TAG" ]; then
+            echo "Head commit of PR is not tagged. Ensure the head commit of PRs onto release is tagged with the version number."
+            exit 1
+          elif [ "$VERSION" != "$TAG" ]; then
+            echo "Version in pyproject.toml ($VERSION) does not match the git tag ($TAG)."
+            exit 1
+          else
+            echo "Version and git tag match. Check passed."
+

.github/workflows/publish-to-pypi.yml

@@ -15,19 +15,24 @@ jobs:
       with:
         fetch-depth: 0  # This fetches all history for all branches and tags
 
-    - name: Check if commit is tagged
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: "3.x"
+
+    - name: Validate version against tag
       run: |
+        VERSION=$(python -c 'import toml; print(toml.load("pyproject.toml")["project"]["version"])')
         TAG=$(git tag --contains HEAD)
         if [ -z "$TAG" ]; then
           echo "Commit is not tagged. Failing the workflow."
           exit 1
         fi
-        echo "Commit is tagged. Proceeding with the workflow."
-
-    - name: Set up Python
-      uses: actions/setup-python@v4
-      with:
-        python-version: "3.x"
+        if [ "$VERSION" != "$TAG" ]; then
+          echo "Version in pyproject.toml ($VERSION) does not match the git tag ($TAG). Failing the workflow."
+          exit 1
+        fi
+        echo "Version and commit tag match. Proceeding with the workflow."
 
     - name: Install pypa/build/setuptools/twine
       run: >-
@@ -36,9 +41,6 @@ jobs:
         build setuptools twine
         --user
 
-    - name: Prevent fallback onto setup.py
-      run: rm setup.py
-
     - name: Build a binary wheel and a source tarball
       run: python3 -m build