grub-btrfsd: Kill process group on SIGTERM/ SIGINT

Signed-off-by: Pascal Jäger <pascal.jaeger@leimstift.de>

config

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 
-GRUB_BTRFS_VERSION=4.12-master-2023-04-05T15:09:30+00:00
+GRUB_BTRFS_VERSION=4.12-master-2023-04-05T15:10:49+00:00
 
 # Disable grub-btrfs.
 # Default: "false"

grub-btrfsd

@@ -14,6 +14,17 @@ verbose=false
 syslog=false
 recursive=false
 
+trap sighandler SIGINT SIGTERM
+sighandler()
+{
+    trap '""' SIGINT SIGTERM
+    vlog "Parent $$: Received signal SIGINT/ SIGTERM"
+    kill 0
+    wait
+    exit 0
+}
+
+
 setcolors() {
     if [ "${1}" = true ]; then
           GREEN=$'\033[0;32m'