From 12d504e086d29686cc6dded398a082f7cd221c80 Mon Sep 17 00:00:00 2001
From: mtkennerly <mtkennerly@gmail.com>
Date: Sat, 2 Dec 2023 13:37:23 +0800
Subject: [PATCH] #280: Round up mtimes for zip archives if before 1980

---
 CHANGELOG.md | 4 ++++
 src/path.rs  | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3363ba11..800db6dc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 * Added:
   * When a path or URL fails to open, additional information is now logged.
+* Fixed:
+  * When storing file modified times in zip archives,
+    if the year is too old for zip to support (i.e., before 1980),
+    Ludusavi will now round up to the earliest support date (1980-01-01).
 
 ## v0.21.0 (2023-08-22)
 
diff --git a/src/path.rs b/src/path.rs
index 951710ee..d9770afa 100644
--- a/src/path.rs
+++ b/src/path.rs
@@ -399,6 +399,14 @@ impl StrictPath {
         use chrono::{Datelike, Timelike};
 
         let mtime: chrono::DateTime<chrono::Utc> = self.get_mtime()?.into();
+
+        // Zip doesn't support years before 1980,
+        // and this is probably just a default Unix timestamp anyway,
+        // so we round up.
+        if mtime.year() < 1980 {
+            return Ok(zip::DateTime::default());
+        }
+
         let converted = zip::DateTime::from_date_and_time(
             mtime.year() as u16,
             mtime.month() as u8,