INNER CODE UNIT · Rust

get_resource

bminixhofer/nlprule · python/src/lib.rs:23

fn get_resource(lang_code: &str, name: &str) -> PyResult<impl Read> {
    let version = env!("CARGO_PKG_VERSION");
    let mut cache_path: Option<PathBuf> = None;

    // try to find a file at which to cache the data
    if let Some(project_dirs) = directories::ProjectDirs::from("", "", "nlprule") {
        let cache_dir = project_dirs.cache_dir();

        cache_path = Some(
            cache_dir.join(version).join(lang_code).join(
                name.strip_suffix(".gz")
                    .expect("resource name must have .gz ending."),
            ),
        );
    }

    // if the file can be read, the data is already cached
    if let Some(path) = &cache_path {

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