test: add test for cmake build

Author: XuehaiPan

.github/workflows/tests-with-pydebug.yml

@@ -34,6 +34,7 @@ env:
   PYTHON: "python"  # to be updated
   PYTHON_TAG: "py3"  # to be updated
   PYTHON_VERSION: "3"  # to be updated
+  pybind11_VERSION: "stable"  # to be updated
   PYENV_ROOT: "~/.pyenv"  # to be updated
   COLUMNS: "128"
 
@@ -290,10 +291,16 @@ jobs:
           github.event_name == 'pull_request' &&
           contains(github.event.pull_request.labels.*.name, 'test-with-nightly-pybind11')
         run: |
-          python .github/workflows/set_setup_requires.py
+          ${{ env.PYTHON }} .github/workflows/set_setup_requires.py
           echo "::group::pyproject.toml"
           cat pyproject.toml
           echo "::endgroup::"
+          echo "pybind11_VERSION=HEAD" | tee -a "${GITHUB_ENV}"
+
+      - name: Test buildable without Python frontend
+        shell: bash
+        run: |
+          make cmake-build PYTHON="${{ env.PYTHON }}" && make clean
 
       - name: Install OpTree
         run: |

.github/workflows/tests.yml

@@ -34,6 +34,7 @@ env:
   PYTHONUNBUFFERED: "1"
   PYTHON: "python"  # to be updated
   PYTHON_TAG: "py3"  # to be updated
+  pybind11_VERSION: "stable"  # to be updated
   COLUMNS: "128"
 
 jobs:
@@ -148,10 +149,11 @@ jobs:
           github.event_name == 'pull_request' &&
           contains(github.event.pull_request.labels.*.name, 'test-with-nightly-pybind11')
         run: |
-          python .github/workflows/set_setup_requires.py
+          ${{ env.PYTHON }} .github/workflows/set_setup_requires.py
           echo "::group::pyproject.toml"
           cat pyproject.toml
           echo "::endgroup::"
+          echo "pybind11_VERSION=HEAD" | tee -a "${GITHUB_ENV}"
 
       - name: Test installable with C++17
         shell: bash
@@ -169,6 +171,21 @@ jobs:
             rm -rf venv
           )
 
+      - name: Test buildable without Python frontend
+        shell: bash
+        run: |
+          ACTIVATION_SCRIPT="venv/bin/activate"
+          if [[ "${{ runner.os }}" == 'Windows' ]]; then
+            ACTIVATION_SCRIPT="venv/Scripts/activate"
+          fi
+          (
+            set -x
+            ${{ env.PYTHON }} -m venv venv &&
+            source "${ACTIVATION_SCRIPT}" &&
+            make cmake-build && make clean &&
+            rm -rf venv
+          )
+
       - name: Install test dependencies
         shell: bash
         run: |

Makefile

@@ -29,6 +29,7 @@ PATH           := $(PATH):$(GOBIN)
 PYTHON         ?= $(shell command -v python3 || command -v python)
 PYTEST         ?= $(PYTHON) -X dev -m pytest -Walways
 PYTESTOPTS     ?=
+CMAKE_BUILD_TYPE   ?= Debug
 CMAKE_CXX_STANDARD ?= 20
 OPTREE_CXX_WERROR  ?= ON
 _GLIBCXX_USE_CXX11_ABI ?= 1
@@ -198,7 +199,7 @@ cmake-configure: cmake-install
 	cmake --version
 	cmake -S . -B cmake-build-debug \
 		--fresh \
-		-DCMAKE_BUILD_TYPE=Debug \
+		-DCMAKE_BUILD_TYPE="$(CMAKE_BUILD_TYPE)" \
 		-DCMAKE_CXX_STANDARD="$(CMAKE_CXX_STANDARD)" \
 		-DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
 		-DPython_EXECUTABLE="$(PYTHON)" \
@@ -233,21 +234,21 @@ addlicense: addlicense-install
 
 .PHONY: docstyle
 docstyle: docs-install
-	make -C docs clean || true
-	$(PYTHON) -m doc8 docs && make -C docs html SPHINXOPTS="-W"
+	$(MAKE) -C docs clean || true
+	$(PYTHON) -m doc8 docs && $(MAKE) -C docs html SPHINXOPTS="-W"
 
 .PHONY: docs
 docs: docs-install
 	$(PYTHON) -m sphinx_autobuild --watch $(PROJECT_PATH) --open-browser docs/source docs/build
 
 .PHONY: spelling
 spelling: docs-install
-	make -C docs clean || true
-	make -C docs spelling SPHINXOPTS="-W"
+	$(MAKE) -C docs clean || true
+	$(MAKE) -C docs spelling SPHINXOPTS="-W"
 
 .PHONY: clean-docs
 clean-docs:
-	make -C docs clean || true
+	$(MAKE) -C docs clean || true
 
 # Utility Functions