From 8f0f75f1a8a6764d52be25d2d2e89866b25502b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Tue, 3 Sep 2024 16:52:04 +0200
Subject: [PATCH] zpool: better error message if zpool has no assigned devices

---
 lib/types/zpool.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/types/zpool.nix b/lib/types/zpool.nix
index 0510b94..df391f2 100644
--- a/lib/types/zpool.nix
+++ b/lib/types/zpool.nix
@@ -148,6 +148,10 @@ in
         in
         ''
           readarray -t zfs_devices < <(cat "$disko_devices_dir"/zfs_${config.name})
+          if [ ''${#zfs_devices[@]} -eq 0 ]; then
+            echo "no devices found for zpool ${config.name}. Did you misspell the pool name?" >&2
+            exit 1
+          fi
           # Try importing the pool without mounting anything if it exists.
           # This allows us to set mounpoints.
           if zpool import -N -f '${config.name}' || zpool list '${config.name}'; then