59 lines
1.4 KiB
Rust
59 lines
1.4 KiB
Rust
use once_cell::sync::Lazy;
|
|
use std::path::PathBuf;
|
|
use tokio::io::AsyncRead;
|
|
use uuid::Uuid;
|
|
|
|
static TMP_DIR: Lazy<PathBuf> = Lazy::new(|| {
|
|
let dir = std::env::temp_dir().join(Uuid::new_v4().to_string());
|
|
std::fs::create_dir(&dir).unwrap();
|
|
dir
|
|
});
|
|
|
|
struct TmpFile(PathBuf);
|
|
|
|
impl Drop for TmpFile {
|
|
fn drop(&mut self) {
|
|
actix_rt::spawn(tokio::fs::remove_file(self.0.clone()));
|
|
}
|
|
}
|
|
|
|
pin_project_lite::pin_project! {
|
|
pub(crate) struct TmpFileCleanup<R> {
|
|
#[pin]
|
|
inner: R,
|
|
|
|
file: TmpFile,
|
|
}
|
|
}
|
|
|
|
pub(crate) fn tmp_file(ext: Option<&str>) -> PathBuf {
|
|
if let Some(ext) = ext {
|
|
TMP_DIR.join(format!("{}{}", Uuid::new_v4(), ext))
|
|
} else {
|
|
TMP_DIR.join(Uuid::new_v4().to_string())
|
|
}
|
|
}
|
|
|
|
pub(crate) async fn remove_tmp_dir() -> std::io::Result<()> {
|
|
tokio::fs::remove_dir_all(&*TMP_DIR).await
|
|
}
|
|
|
|
pub(crate) fn cleanup_tmpfile<R: AsyncRead>(reader: R, file: PathBuf) -> TmpFileCleanup<R> {
|
|
TmpFileCleanup {
|
|
inner: reader,
|
|
file: TmpFile(file),
|
|
}
|
|
}
|
|
|
|
impl<R: AsyncRead> AsyncRead for TmpFileCleanup<R> {
|
|
fn poll_read(
|
|
mut self: std::pin::Pin<&mut Self>,
|
|
cx: &mut std::task::Context<'_>,
|
|
buf: &mut tokio::io::ReadBuf<'_>,
|
|
) -> std::task::Poll<std::io::Result<()>> {
|
|
let this = self.as_mut().project();
|
|
|
|
this.inner.poll_read(cx, buf)
|
|
}
|
|
}
|