added safe-guard against dataset destruction

1 files changed, 1 insertions, 0 deletions

diff --git a/src/zfs.rs b/src/zfs.rs
index 380efa6..3800d42 100644
--- a/src/zfs.rs
+++ b/src/zfs.rs
@@ -34,6 +34,7 @@ pub fn snapshot_prune(tag: &str, dataset: &str, recursive: bool, keep: usize) ->
     for snapshot in snapshots.into_iter().skip(keep) {
         tracing::debug!(name = snapshot.name.as_str(), "destroying snapshot");
         let rec = if recursive { "-r" } else { "" };
+        assert!(snapshot.name.contains('@')); // safe-guard to prevent accidental deletion of non-snapshots
         let cmd = format!("zfs destroy {} {}", rec, snapshot.name);
         let _output = run_shell_command(&cmd)?;
     }