Merge pull request #279 from sarpt/fix-file-truncation-after-failed-hash

Fix file being written with incorrect size after failed hash verification

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rusty-psn"
-version = "0.5.5"
+version = "0.5.6"
 edition = "2018"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

src/psn/mod.rs

@@ -5,7 +5,7 @@ mod manifest_parser;
 use std::{path::PathBuf, str::FromStr};
 
 use reqwest::Url;
-use tokio::io::AsyncWriteExt;
+use tokio::io::{SeekFrom, AsyncSeekExt, AsyncWriteExt};
 use tokio::sync::mpsc::Sender;
 use utils::{copy_pkg_file, get_platform_variant, get_update_info_url, PlaformVariant};
 
@@ -289,10 +289,15 @@ impl PackageInfo {
 
         if !crate::utils::hash_file(&mut pkg_file, &self.sha1sum, self.hash_whole_file).await? {
             if let Err(e) = pkg_file.set_len(0).await {
-                error!("Failed to set file lenght to 0: {e}");
+                error!("Failed to set file length to 0: {e}");
                 return Err(DownloadError::Tokio(e));
             }
 
+            if let Err(e) = pkg_file.seek(SeekFrom::Start(0)).await {
+                error!("Failed to set the package file cursor at position 0: {e}");
+                return Err(DownloadError::Tokio(e));
+            };
+
             let mut received_data = 0;
 
             while let Some(download_chunk) = response.chunk().await.map_err(DownloadError::Reqwest)? {