From 8cf4e010e93800368361c9e0c55ba8921aeb4d3d Mon Sep 17 00:00:00 2001
From: David Peter <mail@david-peter.de>
Date: Mon, 5 Oct 2026 12:48:52 +0200
Subject: [PATCH] Truncate export files before rewriting results

---
 src/export/mod.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/export/mod.rs b/src/export/mod.rs
index 3eb4433..c8d51d7 100644
--- a/src/export/mod.rs
+++ b/src/export/mod.rs
@@ -158,7 +158,11 @@ impl ExportManager {
 
 /// Write the given content to a file with the specified name
 fn write_to_file(filename: &str, content: &[u8]) -> Result<()> {
-    let mut file = OpenOptions::new().write(true).open(filename)?;
+    let mut file = OpenOptions::new()
+        .write(true)
+        // Avoid leaving trailing bytes when the new export is shorter.
+        .truncate(true)
+        .open(filename)?;
     file.write_all(content)
         .with_context(|| format!("Failed to export results to '{filename}'"))
 }