Function rust

noxfile.py:168–210

(session: nox.Session)

@nox.session
def rust(session: nox.Session) -> None:
    prof_location = (
        pathlib.Path(".") / ".rust-cov" / str(uuid.uuid4())
    ).absolute()
    session.env.update(
        {
            "RUSTFLAGS": "-Cinstrument-coverage  "
            + session.env.get("RUSTFLAGS", ""),
            "LLVM_PROFILE_FILE": str(prof_location / "cov-%p.profraw"),
        }
    )

    install(session, ".")

    with session.chdir("src/rust/"):
        session.run("cargo", "fmt", "--all", "--", "--check", external=True)
        session.run("cargo", "clippy", "--", "-D", "warnings", external=True)

        build_output = session.run(
            "cargo",
            "test",
            "--no-default-features",
            "--all",
            "--no-run",
            "-q",
            "--message-format=json",
            external=True,
            silent=True,
        )
        session.run(
            "cargo", "test", "--no-default-features", "--all", external=True
        )

    # It's None on install-only invocations
    if build_output is not None:
        assert isinstance(build_output, str)
        rust_tests = []
        for line in build_output.splitlines():
            data = json.loads(line)
            if data.get("profile", {}).get("test", False):
                rust_tests.extend(data["filenames"])

        process_rust_coverage(session, rust_tests, prof_location)


LCOV_SOURCEFILE_RE = re.compile(