feat(msix/md): check $status

Author: ErrorNoInternet

home/hosts/msix.nix

@@ -59,8 +59,19 @@
   programs.fish.interactiveShellInit = ''
     function md
       read -P "[luks] password for btank: " -s LUKS_PASSWORD
+
       echo "$LUKS_PASSWORD" | sudo cryptsetup luksOpen /dev/disk/by-uuid/5e05e286-205a-4063-9fa1-ac384bed4e9c luks_btank-data0
-      and echo "$LUKS_PASSWORD" | sudo cryptsetup luksOpen /dev/disk/by-uuid/136e9203-0172-464e-a795-9f5ed11c96fa luks_btank-cache0
+      if [ "$status" != 0 ]
+        echo "failed to unlock LUKS device"
+        return
+      end
+
+      echo "$LUKS_PASSWORD" | sudo cryptsetup luksOpen /dev/disk/by-uuid/136e9203-0172-464e-a795-9f5ed11c96fa luks_btank-cache0
+      if [ "$status" != 0 ]
+        echo "failed to unlock LUKS device"
+        return
+      end
+
       set -e LUKS_PASSWORD
 
       echo 5000 | sudo tee /sys/fs/bcache/*/congested_read_threshold_us > /dev/null