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use std::fs::Permissions;
use std::os::unix::fs::PermissionsExt;
use libc;
use crate::SimpleType;
/// A file metadata
///
/// Because we can't freely create a `std::fs::Metadata` object we have to
/// implement our own structure.
pub struct Metadata {
stat: libc::stat,
}
impl Metadata {
/// Returns simplified type of the directory entry
pub fn simple_type(&self) -> SimpleType {
let typ = self.stat.st_mode & libc::S_IFMT;
match typ {
libc::S_IFREG => SimpleType::File,
libc::S_IFDIR => SimpleType::Dir,
libc::S_IFLNK => SimpleType::Symlink,
_ => SimpleType::Other,
}
}
/// Returns underlying stat structure
pub fn stat(&self) -> &libc::stat {
&self.stat
}
/// Returns `true` if the entry is a regular file
pub fn is_file(&self) -> bool {
self.simple_type() == SimpleType::File
}
/// Returns `true` if the entry is a directory
pub fn is_dir(&self) -> bool {
self.simple_type() == SimpleType::Dir
}
/// Returns permissions of the entry
pub fn permissions(&self) -> Permissions {
Permissions::from_mode(self.stat.st_mode as u32)
}
/// Returns file size
pub fn len(&self) -> u64 {
self.stat.st_size as u64
}
}
pub fn new(stat: libc::stat) -> Metadata {
Metadata { stat: stat }
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn dir() {
let d = crate::Dir::open(".").unwrap();
let m = d.metadata("src").unwrap();
assert_eq!(m.simple_type(), SimpleType::Dir);
assert!(m.is_dir());
assert!(!m.is_file());
}
#[test]
fn file() {
let d = crate::Dir::open("src").unwrap();
let m = d.metadata("lib.rs").unwrap();
assert_eq!(m.simple_type(), SimpleType::File);
assert!(!m.is_dir());
assert!(m.is_file());
}
}
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