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use std::{fs, io, path, time};
#[derive(Clone, Debug, PartialEq)]
pub enum FileType {
Directory,
File,
}
impl FileType {
pub fn is_dir(&self) -> bool {
*self == Self::Directory
}
#[allow(dead_code)]
pub fn is_file(&self) -> bool {
*self == Self::File
}
}
#[derive(Clone, Debug)]
pub enum LinkType {
Normal,
Symlink(String, bool), // link target, link validity
}
#[derive(Clone, Debug)]
pub struct JoshutoMetadata {
_len: u64,
_directory_size: Option<usize>,
_modified: time::SystemTime,
_permissions: fs::Permissions,
_file_type: FileType,
_link_type: LinkType,
#[cfg(unix)]
pub uid: u32,
#[cfg(unix)]
pub gid: u32,
#[cfg(unix)]
pub mode: u32,
}
impl JoshutoMetadata {
pub fn from(path: &path::Path) -> io::Result<Self> {
#[cfg(unix)]
use std::os::unix::fs::MetadataExt;
let symlink_metadata = fs::symlink_metadata(path)?;
let metadata = fs::metadata(path);
let (_len, _modified, _permissions) = match metadata.as_ref() {
Ok(m) => (m.len(), m.modified()?, m.permissions()),
Err(_) => (
symlink_metadata.len(),
symlink_metadata.modified()?,
symlink_metadata.permissions(),
),
};
let (_file_type, _directory_size) = match metadata.as_ref() {
Ok(m) if m.file_type().is_dir() => (FileType::Directory, None),
_ => (FileType::File, None),
};
let _link_type = if symlink_metadata.file_type().is_symlink() {
let mut link = "".to_string();
if let Ok(path) = fs::read_link(path) {
if let Some(s) = path.to_str() {
link = s.to_string();
}
}
let exists = path.exists();
LinkType::Symlink(link, exists)
} else {
LinkType::Normal
};
#[cfg(unix)]
let uid = symlink_metadata.uid();
#[cfg(unix)]
let gid = symlink_metadata.gid();
#[cfg(unix)]
let mode = symlink_metadata.mode();
Ok(Self {
_len,
_directory_size,
_modified,
_permissions,
_file_type,
_link_type,
#[cfg(unix)]
uid,
#[cfg(unix)]
gid,
#[cfg(unix)]
mode,
})
}
pub fn len(&self) -> u64 {
self._len
}
pub fn directory_size(&self) -> Option<usize> {
self._directory_size
}
pub fn update_directory_size(&mut self, size: usize) {
self._directory_size = Some(size);
}
pub fn modified(&self) -> time::SystemTime {
self._modified
}
pub fn permissions_ref(&self) -> &fs::Permissions {
&self._permissions
}
pub fn permissions_mut(&mut self) -> &mut fs::Permissions {
&mut self._permissions
}
pub fn file_type(&self) -> &FileType {
&self._file_type
}
pub fn link_type(&self) -> &LinkType {
&self._link_type
}
pub fn is_dir(&self) -> bool {
self._file_type == FileType::Directory
}
}
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