finish pruner implementation

daemon/pruner/state_string.go

@@ -0,0 +1,35 @@
+// Code generated by "stringer -type=State"; DO NOT EDIT.
+
+package pruner
+
+import "strconv"
+
+const (
+	_State_name_0 = "PlanPlanWait"
+	_State_name_1 = "Exec"
+	_State_name_2 = "ExecWait"
+	_State_name_3 = "ErrPerm"
+	_State_name_4 = "Done"
+)
+
+var (
+	_State_index_0 = [...]uint8{0, 4, 12}
+)
+
+func (i State) String() string {
+	switch {
+	case 1 <= i && i <= 2:
+		i -= 1
+		return _State_name_0[_State_index_0[i]:_State_index_0[i+1]]
+	case i == 4:
+		return _State_name_1
+	case i == 8:
+		return _State_name_2
+	case i == 16:
+		return _State_name_3
+	case i == 32:
+		return _State_name_4
+	default:
+		return "State(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+}