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use std::{
path::{Path, PathBuf},
sync::atomic::{AtomicUsize, Ordering},
};
use crate::{error::fs_err, gsl, Result};
pub fn rm_rf(path: impl AsRef<Path>) -> Result<()> {
_rm_rf(path.as_ref())
}
fn _rm_rf(path: &Path) -> Result<()> {
let _guard = gsl::read();
if !path.exists() {
return Ok(());
}
with_path(path, if path.is_file() { std::fs::remove_file(path) } else { remove_dir_all(path) })
}
pub fn read_file(path: impl AsRef<Path>) -> Result<String> {
_read_file(path.as_ref())
}
fn _read_file(path: &Path) -> Result<String> {
let _guard = gsl::read();
with_path(path, std::fs::read_to_string(path))
}
pub fn write_file(path: impl AsRef<Path>, contents: impl AsRef<[u8]>) -> Result<()> {
_write_file(path.as_ref(), contents.as_ref())
}
fn _write_file(path: &Path, contents: &[u8]) -> Result<()> {
if let Some(p) = path.parent() {
mkdir_p(p)?;
}
let _guard = gsl::read();
with_path(path, std::fs::write(path, contents))
}
pub fn mkdir_p(path: impl AsRef<Path>) -> Result<()> {
_mkdir_p(path.as_ref())
}
fn _mkdir_p(path: &Path) -> Result<()> {
let _guard = gsl::read();
with_path(path, std::fs::create_dir_all(path))
}
pub fn cp(src: impl AsRef<Path>, dst: impl AsRef<Path>) -> Result<()> {
_cp(src.as_ref(), dst.as_ref())
}
fn _cp(src: &Path, dst: &Path) -> Result<()> {
let _guard = gsl::read();
let mut _tmp;
let mut dst = dst;
if dst.is_dir() {
if let Some(file_name) = src.file_name() {
_tmp = dst.join(file_name);
dst = &_tmp;
}
}
with_path(src, std::fs::copy(src, dst)).map(|_size| ())
}
pub fn read_dir(path: impl AsRef<Path>) -> Result<Vec<PathBuf>> {
_read_dir(path.as_ref())
}
fn _read_dir(path: &Path) -> Result<Vec<PathBuf>> {
let _guard = gsl::read();
with_path(path, read_dir_aux(path))
}
pub fn cwd() -> Result<PathBuf> {
let _guard = gsl::read();
with_path(&Path::new("."), std::env::current_dir())
}
pub fn mktemp_d() -> Result<TempDir> {
let _guard = gsl::read();
let base = std::env::temp_dir();
mkdir_p(&base)?;
static CNT: AtomicUsize = AtomicUsize::new(0);
let mut n_try = 0u32;
loop {
let cnt = CNT.fetch_add(1, Ordering::Relaxed);
let path = base.join(format!("xshell-tmp-dir-{}", cnt));
match std::fs::create_dir(&path) {
Ok(()) => return Ok(TempDir { path }),
Err(io_err) if n_try == 1024 => return Err(fs_err(path, io_err)),
Err(_) => n_try += 1,
}
}
}
fn with_path<T>(path: &Path, res: Result<T, std::io::Error>) -> Result<T> {
res.map_err(|io_err| fs_err(path.to_path_buf(), io_err))
}
#[cfg(not(windows))]
fn remove_dir_all(path: &Path) -> std::io::Result<()> {
std::fs::remove_dir_all(path)
}
#[cfg(windows)]
fn remove_dir_all(path: &Path) -> std::io::Result<()> {
for _ in 0..99 {
if std::fs::remove_dir_all(path).is_ok() {
return Ok(());
}
std::thread::sleep(std::time::Duration::from_millis(10))
}
std::fs::remove_dir_all(path)
}
fn read_dir_aux(path: &Path) -> std::io::Result<Vec<PathBuf>> {
let mut res = Vec::new();
for entry in std::fs::read_dir(path)? {
let entry = entry?;
res.push(entry.path())
}
res.sort();
Ok(res)
}
#[derive(Debug)]
pub struct TempDir {
path: PathBuf,
}
impl TempDir {
pub fn path(&self) -> &Path {
&self.path
}
}
impl Drop for TempDir {
fn drop(&mut self) {
let _ = rm_rf(&self.path);
}
}