Allow cancelling dialogues using CTRL+C

lib/modules/partition/choose-disk.fish

@@ -29,6 +29,7 @@ function chooseDisk -a outFile message
             end
 
             read -lP "Your choice: " choice
+            or exit 1
 
             if [ "$choice" -ge 1 ] && [ "$choice" -le "$diskCount" ]
                 set -l disk (string split -n " " "$disks[$(math "$choice" + 1)]")

lib/modules/partition/confirm.fish

@@ -4,6 +4,7 @@ function confirm -a message default
 
     while true
         read -l value -P "$message $options "
+        or exit 1
         set value (string lower "$value")
 
         if [ -z "$value" ]