add check-py-version action

.github/workflows/ci.yml

@@ -140,15 +140,43 @@ jobs:
           path: dist/*.tar.gz
           if-no-files-found: error
 
-  etc:
+  check-py-version:
+    name: validate whether the python version was correctly set for this release
+    # NB: we define a "release" as a tag starting with a 'v'!
+    # if: startsWith(github.ref, 'refs/tags/v')
     runs-on: ubuntu-latest
     steps:
-    - run: echo ${{ github.ref }}
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.11'
+
+    - run: pip install --upgrade pip
+
+    - run: python -c 'import tomllib; t = tomllib.load(open("pyproject.toml", "rb")); print("\n".join(t["build-system"]["requires"]));' > build-requires.txt
+
+    - run: pip install -r buidl-requires.txt
+
+    - run: "[[ \"refs/tags/v$(python setup.py --dry-run --version)\" == '${{ github.ref }}' ]]"
+
+  # check-rust-version:
+  #   name: validate whether the python version was correctly set for this release
+  #   # NB: we define a "release" as a tag starting with a 'v'!
+  #   if: startsWith(github.ref, 'refs/tags/v')
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #   - uses: actions/checkout@v3
+  #   - uses: actions/setup-python@v4
+  #     with:
+  #       python-version: '3.10'
+  #   - run: pip install --upgrade pip
+  #   - run: python setup.py --version > version.txt
+  #   - run: [[ "refs/tags/v$(python setup.py --version)" == '${{ github.ref }}' ]]
 
   build-bdists:
     name: build bdists for many pythons in a row on ${{ matrix.os }}
-    # run on push to main, on release, and on PRs with the label 'Full Build'
-    if: "success() && (startsWith(github.ref, 'refs/tags/') || github.ref == 'refs/heads/main' || contains(github.event.pull_request.labels.*.name, 'Full Build'))"
+    # run on releases, and on PRs with the label 'Full Build'
+    if: "success() && (startsWith(github.ref, 'refs/tags/') || contains(github.event.pull_request.labels.*.name, 'Full Build'))"
     strategy:
       fail-fast: false
       matrix: