feat: ✨ add an option to stop creating efi boot entries

src/config.fish

@@ -12,6 +12,9 @@ function config -d "sets some configuration variables"
     # images.
     set -g CFG_DEFAULT_SUBVOL "@"
 
+    # Wheter to add a new EFI entry for a new snapshot uki
+    set -g CFG_EFI "yes"
+
     # The device the EFI partition resides on
     set -g CFG_EFI_DEV "/dev/nvme0n1"
 

src/snap-pac-uki.fish

@@ -138,9 +138,11 @@ function main
                 cp "$CFG_BUILD_DIR/$id/arch-linux-$id.efi" "$CFG_UKI_DIR"
                 echo "  -> copied uki for snapshot $id into uki directory"
 
+                if test "$CFG_EFI" = "yes"
                     add_efi_entry $id
                     echo "  -> created efi boot entry for uki of snapshot $id"
                 end
+            end
 
         case "current"
             echo "==> creating current ukis"