longer temp filename

1 files changed, 11 insertions, 2 deletions

diff --git a/src/persistence.rs b/src/persistence.rs
index f1ed845..2903ec6 100644
--- a/src/persistence.rs
+++ b/src/persistence.rs
@@ -9,7 +9,8 @@ use crate::{
 	RoomId,
 	savestate::SaveState,
 	playerstate::PlayerState,
-	Result
+	Result,
+	aerr
 };
 
 pub trait PersistentStorage {
@@ -103,7 +104,15 @@ impl PersistentStorage for FileStorage {
 }
 
 fn write_file_safe<P: AsRef<Path>, C: AsRef<[u8]>>(path: P, contents: C) -> Result<()> {
-	let temppath = path.as_ref().with_file_name(format!("tempfile_{}.tmp", rand::random::<u64>()));
+	let temppath = path
+		.as_ref()
+		.with_file_name(
+			format!(
+				"tempfile_{}_{}.tmp",
+				path.as_ref().file_name().ok_or(aerr!("writing to directory"))?.to_str().unwrap_or("invalid"),
+				rand::random::<u64>()
+			)
+		);
 	fs::write(&temppath, contents)?;
 	fs::rename(&temppath, path)?;
 	Ok(())