From dbc48f9f7ab41779593a44c9b8cff6cc4bc3614d Mon Sep 17 00:00:00 2001
From: Damien Elmes <git@ichi2.net>
Date: Wed, 20 Jun 2012 09:55:30 +0900
Subject: [PATCH] on ctrl+c, abort db transaction and roll back

---
 aqt/main.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/aqt/main.py b/aqt/main.py
index 38faa0dd5..74cb85863 100644
--- a/aqt/main.py
+++ b/aqt/main.py
@@ -449,7 +449,12 @@ title="%s">%s</button>''' % (
         signal.signal(signal.SIGINT, self.onSigInt)
 
     def onSigInt(self, signum, frame):
-        self.onClose()
+        # interrupt any current transaction and schedule a rollback & quit
+        self.col.db.interrupt()
+        def quit():
+            self.col.db.rollback()
+            self.close()
+        self.progress.timer(100, quit, False)
 
     def setupProgress(self):
         self.progress = aqt.progress.ProgressManager(self)