Function get_last_artifact

crates/cuda_builder/src/lib.rs:516–539

(out: &str)

}

fn get_last_artifact(out: &str) -> Option<PathBuf> {
    let last = out
        .lines()
        .filter_map(|line| match serde_json::from_str::<RustcOutput>(line) {
            Ok(line) => Some(line),
            Err(_) => {
                // Pass through invalid lines
                println!("{}", line);
                None
            }
        })
        .filter(|line| line.reason == "compiler-artifact")
        .last()
        .expect("Did not find output file in rustc output");

    let mut filenames = last
        .filenames
        .unwrap()
        .into_iter()
        .filter(|v| v.ends_with(".ptx"));
    let filename = filenames.next()?;
    assert_eq!(filenames.next(), None, "Crate had multiple .ptx artifacts");
    Some(filename.into())
}