From d2c142f65f8f71549a45a83c9092a86f1576f105 Mon Sep 17 00:00:00 2001
From: kageru <kageru@encode.moe>
Date: Fri, 24 Jan 2020 08:11:07 +0100
Subject: [PATCH] Add persistent storage via json

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

diff --git a/src/tracc.rs b/src/tracc.rs
index 4db36c7..58b45d9 100644
--- a/src/tracc.rs
+++ b/src/tracc.rs
@@ -110,7 +110,11 @@ impl Tracc {
 
     pub fn persist(self) {
         let string = serde_json::to_string(&self.todos).unwrap();
-        std::fs::OpenOptions::new().create(true).write(true).open(JSON_PATH)
+        std::fs::OpenOptions::new()
+            .create(true)
+            .write(true)
+            .truncate(true)
+            .open(JSON_PATH)
             .ok()
             .or_else(|| panic!("Can’t save todos to JSON. Dumping raw data:\n{}", string))
             .map(|mut f| f.write(string.as_bytes()));