//! Filesystem utilities//!//! These are will be parallel if the `parallel` feature is enabled, at the expense of compiling additional dependencies//! along with runtime costs for maintaining a global [`rayon`](https://docs.rs/rayon) thread pool.//!//! For information on how to use the [`WalkDir`] type, have a look at//! * [`jwalk::WalkDir`](https://docs.rs/jwalk/0.5.1/jwalk/type.WalkDir.html) if `parallel` feature is enabled//! * [walkdir::WalkDir](https://docs.rs/walkdir/2.3.1/walkdir/struct.WalkDir.html) otherwise#[cfg(feature = "parallel")]///pub mod walkdir {    pub use jwalk::{DirEntry as DirEntryGeneric, DirEntryIter as DirEntryIterGeneric, Error, WalkDir};    use std::path::Path;     /// An alias for an uncustomized directory entry to match the one of the non-parallel version offered by `walkdir`.    pub type DirEntry = DirEntryGeneric<((), ())>;     /// Instantiate a new directory iterator which will not skip hidden files.    pub fn walkdir_new(root: impl AsRef<Path>) -> WalkDir {        WalkDir::new(root).skip_hidden(false)    }     /// The Iterator yielding directory items    pub type DirEntryIter = DirEntryIterGeneric<((), ())>;} #[cfg(not(feature = "parallel"))]///pub mod walkdir {    use std::path::Path;    pub use walkdir::{DirEntry, Error, WalkDir};     /// Instantiate a new directory iterator which will not skip hidden files.    pub fn walkdir_new(root: impl AsRef<Path>) -> WalkDir {        WalkDir::new(root)    }     /// The Iterator yielding directory items    pub type DirEntryIter = walkdir::IntoIter;} pub use self::walkdir::{walkdir_new, WalkDir};