From ec4168769e50674405316d3bc9f584fafa90f22d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matej=20Jane=C5=BEi=C4=8D?= <matej.janezic@aflabs.com>
Date: Fri, 4 Sep 2026 09:17:20 +0000
Subject: [PATCH] fix: keep existing contents in create_file

---
 src/lib.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index c24d234..561f014 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,6 +19,12 @@ fn safe_create_file(path: PathBuf) -> Result<File, std::io::Error> {
     OpenOptions::new().write(true).create_new(true).open(path)
 }
 
+// truncate(false) keeps an existing file's contents, which is what callers creating
+// an empty __init__.py want
 fn create_file(path: PathBuf) -> Result<File, std::io::Error> {
-    OpenOptions::new().write(true).create(true).open(path)
+    OpenOptions::new()
+        .write(true)
+        .create(true)
+        .truncate(false)
+        .open(path)
 }