Function test_examples_emscripten

noxfile.py:264–315

(session: nox.Session)

@nox.session(name="test-examples-emscripten")
def test_examples_emscripten(session: nox.Session):
    session.install(".", "build")

    session.run(
        "rustup",
        "component",
        "add",
        "rust-src",
        "--toolchain",
        "nightly",
        external=True,
    )
    examples_dir = Path("examples").absolute()
    test_crates = [
        examples_dir / "html-py-ever",
        examples_dir / "namespace_package",
    ]

    python_version = os.environ["PYTHON_VERSION"]
    emscripten_version = os.environ["EMSCRIPTEN_VERSION"]

    with tempfile.NamedTemporaryFile("w") as pyo3_config:
        pyo3_config.write(f"""\
implementation=CPython
version={python_version}
shared=true
abi3=false
pointer_width=32
""")
        pyo3_config.flush()

        emscripten_version_joined = emscripten_version.replace(".", "_")

        for example in test_crates:
            env = os.environ.copy()
            env.update(
                RUSTUP_TOOLCHAIN="nightly",
                PYTHONPATH=str(EMSCRIPTEN_DIR),
                _PYTHON_SYSCONFIGDATA_NAME="_sysconfigdata__emscripten_wasm32-emscripten",
                _PYTHON_HOST_PLATFORM=f"emscripten_{emscripten_version_joined}_wasm32",
                CARGO_BUILD_TARGET="wasm32-unknown-emscripten",
                CARGO_TARGET_WASM32_UNKNOWN_EMSCRIPTEN_LINKER=str(
                    EMSCRIPTEN_DIR / "emcc_wrapper.py"
                ),
                PYO3_CONFIG_FILE=pyo3_config.name,
            )
            with session.chdir(example):
                cmd = ["python", "-m", "build", "--wheel", "--no-isolation"]
                session.run(*cmd, env=env, external=True)

            with session.chdir(EMSCRIPTEN_DIR):
                session.run("node", "runner.js", str(example), external=True)


@nox.session(name="bump-version")