Prettier worker list table; remove useless CLI log messages

src/table/gc.rs

@@ -330,12 +330,10 @@ where
 		format!("{} GC", F::TABLE_NAME)
 	}
 
-	fn info(&self) -> Option<String> {
-		let l = self.gc.data.gc_todo_len().unwrap_or(0);
-		if l > 0 {
-			Some(format!("{} items in queue", l))
-		} else {
-			None
+	fn status(&self) -> WorkerStatus {
+		WorkerStatus {
+			queue_length: Some(self.gc.data.gc_todo_len().unwrap_or(0) as u64),
+			..Default::default()
 		}
 	}
 

src/table/merkle.rs

@@ -310,15 +310,13 @@ where
 	R: TableReplication + 'static,
 {
 	fn name(&self) -> String {
-		format!("{} Merkle tree updater", F::TABLE_NAME)
+		format!("{} Merkle", F::TABLE_NAME)
 	}
 
-	fn info(&self) -> Option<String> {
-		let l = self.0.todo_len().unwrap_or(0);
-		if l > 0 {
-			Some(format!("{} items in queue", l))
-		} else {
-			None
+	fn status(&self) -> WorkerStatus {
+		WorkerStatus {
+			queue_length: Some(self.0.todo_len().unwrap_or(0) as u64),
+			..Default::default()
 		}
 	}
 

src/table/sync.rs

@@ -570,12 +570,10 @@ impl<F: TableSchema + 'static, R: TableReplication + 'static> Worker for SyncWor
 		format!("{} sync", F::TABLE_NAME)
 	}
 
-	fn info(&self) -> Option<String> {
-		let l = self.todo.len();
-		if l > 0 {
-			Some(format!("{} partitions remaining", l))
-		} else {
-			None
+	fn status(&self) -> WorkerStatus {
+		WorkerStatus {
+			queue_length: Some(self.todo.len() as u64),
+			..Default::default()
 		}
 	}