move 'wait_for_local_worker' from client to server

this just made no sense in the client

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

src/server/worker_task.rs

@@ -804,3 +804,23 @@ impl pbs_datastore::task::TaskState for WorkerTask {
         }
     }
 }
+
+/// Wait for a locally spanned worker task
+///
+/// Note: local workers should print logs to stdout, so there is no
+/// need to fetch/display logs. We just wait for the worker to finish.
+pub async fn wait_for_local_worker(upid_str: &str) -> Result<(), Error> {
+
+    let upid: UPID = upid_str.parse()?;
+
+    let sleep_duration = core::time::Duration::new(0, 100_000_000);
+
+    loop {
+        if worker_is_active_local(&upid) {
+            tokio::time::sleep(sleep_duration).await;
+        } else {
+            break;
+        }
+    }
+    Ok(())
+}