From 1f4fcff5dd14d2c2d22bb80c42f038dd9c81a27b Mon Sep 17 00:00:00 2001
From: torzdf <36920800+torzdf@users.noreply.github.com>
Date: Sun, 19 May 2024 11:04:48 +0100
Subject: [PATCH] bugfix: Alignments, prevent duplicate backup alignment file
 names

---
 lib/align/alignments.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/align/alignments.py b/lib/align/alignments.py
index 0901625..68bdbce 100644
--- a/lib/align/alignments.py
+++ b/lib/align/alignments.py
@@ -796,7 +796,15 @@ class _IO():
         now = datetime.now().strftime("%Y%m%d_%H%M%S")
         src = self._file
         split = os.path.splitext(src)
-        dst = split[0] + "_" + now + split[1]
+        dst = f"{split[0]}_{now}{split[1]}"
+        idx = 1
+        while True:
+            if not os.path.exists(dst):
+                break
+            logger.debug("Backup file %s exists. Incrementing", dst)
+            dst = f"{split[0]}_{now}({idx}){split[1]}"
+            idx += 1
+
         logger.info("Backing up original alignments to '%s'", dst)
         os.rename(src, dst)
         logger.debug("Backed up alignments")