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use std::ffi::OsString;
use std::fs;
use std::io;
use std::path::PathBuf;
use crate::errors::{Error, ErrorKind};
/// Wrapper for [`fs::read_dir`](https://doc.rust-lang.org/stable/std/fs/fn.read_dir.html).
pub fn read_dir<P: Into<PathBuf>>(path: P) -> io::Result<ReadDir> {
let path = path.into();
match fs::read_dir(&path) {
Ok(inner) => Ok(ReadDir { inner, path }),
Err(source) => Err(Error::new(source, ErrorKind::ReadDir, path)),
}
}
/// Wrapper around [`std::fs::ReadDir`][std::fs::ReadDir] which adds more
/// helpful information to all errors.
///
/// This struct is created via [`fs_err::read_dir`][fs_err::read_dir].
///
/// [std::fs::ReadDir]: https://doc.rust-lang.org/stable/std/fs/struct.ReadDir.html
/// [fs_err::read_dir]: fn.read_dir.html
#[derive(Debug)]
pub struct ReadDir {
inner: fs::ReadDir,
path: PathBuf,
}
impl Iterator for ReadDir {
type Item = io::Result<DirEntry>;
fn next(&mut self) -> Option<Self::Item> {
Some(self.inner.next()?.map(|inner| DirEntry { inner }))
}
}
/// Wrapper around [`std::fs::DirEntry`][std::fs::DirEntry] which adds more
/// helpful information to all errors.
///
/// [std::fs::DirEntry]: https://doc.rust-lang.org/stable/std/fs/struct.DirEntry.html
#[derive(Debug)]
pub struct DirEntry {
inner: fs::DirEntry,
}
impl DirEntry {
/// Wrapper for [`DirEntry::path`](https://doc.rust-lang.org/stable/std/fs/struct.DirEntry.html#method.path).
pub fn path(&self) -> PathBuf {
self.inner.path()
}
/// Wrapper for [`DirEntry::metadata`](https://doc.rust-lang.org/stable/std/fs/struct.DirEntry.html#method.metadata).
pub fn metadata(&self) -> io::Result<fs::Metadata> {
self.inner
.metadata()
.map_err(|source| Error::new(source, ErrorKind::Metadata, self.path()))
}
/// Wrapper for [`DirEntry::file_type`](https://doc.rust-lang.org/stable/std/fs/struct.DirEntry.html#method.file_type).
pub fn file_type(&self) -> io::Result<fs::FileType> {
self.inner
.file_type()
.map_err(|source| Error::new(source, ErrorKind::Metadata, self.path()))
}
/// Wrapper for [`DirEntry::file_name`](https://doc.rust-lang.org/stable/std/fs/struct.DirEntry.html#method.file_name).
pub fn file_name(&self) -> OsString {
self.inner.file_name()
}
}
#[cfg(unix)]
mod unix {
use std::os::unix::fs::DirEntryExt;
use super::*;
impl DirEntryExt for DirEntry {
fn ino(&self) -> u64 {
self.inner.ino()
}
}
}
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