Remove unneeded github actions in ci-emscripten.yml

Author: oscarbenjamin

.github/workflows/ci-emscripten.yml

@@ -15,28 +15,17 @@ jobs:
   build:
     runs-on: ubuntu-latest
     env:
-      PYTHON_VERSION: 3.13 # any 3.13.x version works
+      # This needs to be kept in sync with pyodide-version in pyproject.toml
       EMSCRIPTEN_VERSION: 4.0.9
-      NODE_VERSION: 22
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
-      - name: Set up Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v6
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-
       - name: Set up Emscripten toolchain
         uses: mymindstorm/setup-emsdk@6ab9eb1bda2574c4ddb79809fc9247783eaf9021 # v14
         with:
           version: ${{ env.EMSCRIPTEN_VERSION }}
           actions-cache-folder: emsdk-cache
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v6
-        with:
-          node-version: ${{ env.NODE_VERSION }}
-
       - name: Restore WASM library directory from cache
         id: cache-wasm-library-dir
         uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
@@ -48,6 +37,7 @@ jobs:
         uses: pypa/cibuildwheel@298ed2fb2c105540f5ed055e8a6ad78d82dd3a7e # v3.3.1
         env:
           CIBW_PLATFORM: pyodide
+          # This needs to be kept in sync with pyodide-version in pyproject.toml
           CIBW_BUILD: cp313-*
 
       - name: Persist WASM library directory to cache

pyproject.toml

@@ -180,7 +180,14 @@ repair-wheel-command = [
 [tool.cibuildwheel.pyodide]
 before-all = "bin/cibw_before_all_pyodide.sh"
 before-build = "pip install wheel"
+
+# This needs to be kept in sync with EMSCRIPTEN_VERSION and CIBW_BUILD in
+# .github.workflows/ci-emscripten.yml. The pyodide version pins both an
+# emscripten version and a CPython minor version. Not sure what is a good link
+# to see a table of versions but the command pyodide xbuildenv search --all
+# shows this.
 pyodide-version = "0.28.2"
+
 # GMP, MPFR, and FLINT are built as static libraries for Pyodide.
 repair-wheel-command = [
 """python bin/cibw_repair_wheel_licenses.py "{wheel}" \