feat: add default handler for SIGINT

This prevents having a callstack when hitting Ctrl+C in the terminal.

CHANGELOG.md

@@ -22,6 +22,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Some signals weren't properly renamed from the previous GTK3 migration (@MightyCreak)
 - The syntax menu wasn't working anymore (@MightyCreak)
+- Properly handles SIGINT (i.e. Ctrl+C) now (@MightyCreak)
 
 ## 0.8.1 - 2023-04-07
 

src/diffuse/diffuse.in

@@ -22,6 +22,7 @@
 import os
 import sys
 import gettext
+import signal
 
 from gi.repository import Gio
 
@@ -32,6 +33,10 @@ SYSCONFIGDIR = '@SYSCONFIGDIR@'
 
 sys.path.insert(1, PKGDATADIR)
 
+# Quietly handle SIGINT (i.e. Ctrl+C)
+signal.signal(signal.SIGINT, signal.SIG_DFL)
+
+# Initialize i18n
 gettext.bindtextdomain('diffuse', localedir=LOCALEDIR)
 gettext.textdomain('diffuse')