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Use ScopeGuard to auto remove file on failure

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Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
This commit is contained in:
Jiahao XU 2022-06-08 20:23:03 +10:00
parent 80706dc3c4
commit c7965ceb4f
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GPG key ID: 591C0B03040416D6
1 changed files with 7 additions and 0 deletions
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7
src/helpers.rs
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@ -10,6 +10,7 @@ use flate2::read::GzDecoder;
use futures_util::stream::StreamExt;
use log::{debug, info};
use reqwest::Method;
use scopeguard::ScopeGuard;
use serde::Serialize;
use tar::Archive;
use tinytemplate::TinyTemplate;
@ -63,11 +64,17 @@ pub async fn download<P: AsRef<Path>>(url: &str, path: P) -> Result<(), Binstall
let mut bytes_stream = resp.bytes_stream();
let writer = AsyncFileWriter::new(path)?;
let guard = scopeguard::guard(path, |path| {
fs::remove_file(path).ok();
});
while let Some(res) = bytes_stream.next().await {
writer.write(res?).await;
}
writer.done().await?;
// Disarm as it is successfully downloaded and written to file.
ScopeGuard::into_inner(guard);
debug!("Download OK, written to file: '{}'", path.display());