From 6b9f909aeda55971691fdb181e4bbf68978199ef Mon Sep 17 00:00:00 2001
From: zramsay <zach@monax.io>
Date: Thu, 1 Jun 2017 13:58:34 -0400
Subject: [PATCH] hamt: reinstate a useful debug function

License: MIT
Signed-off-by: Zach Ramsay <zach.ramsay@gmail.com>
---
 hamt/hamt_stress_test.go | 102 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)

diff --git a/hamt/hamt_stress_test.go b/hamt/hamt_stress_test.go
index 94bfce878..6044631b9 100644
--- a/hamt/hamt_stress_test.go
+++ b/hamt/hamt_stress_test.go
@@ -186,3 +186,105 @@ func genOpSet(seed int64, keep, temp []string) []testOp {
 		}
 	}
 }
+
+// executes the given op set with a repl to allow easier debugging
+/*func debugExecuteOpSet(ds dag.DAGService, width int, ops []testOp) (*HamtShard, error) {
+
+	s, err := NewHamtShard(ds, width)
+	if err != nil {
+		return nil, err
+	}
+
+	e := ft.EmptyDirNode()
+	ds.Add(e)
+	ctx := context.TODO()
+
+	run := 0
+
+	opnames := map[int]string{
+		opAdd: "add",
+		opDel: "del",
+	}
+
+mainloop:
+	for i := 0; i < len(ops); i++ {
+		o := ops[i]
+
+		fmt.Printf("Op %d: %s %s\n", i, opnames[o.Op], o.Val)
+		for run == 0 {
+			cmd := readCommand()
+			parts := strings.Split(cmd, " ")
+			switch parts[0] {
+			case "":
+				run = 1
+			case "find":
+				_, err := s.Find(ctx, parts[1])
+				if err == nil {
+					fmt.Println("success")
+				} else {
+					fmt.Println(err)
+				}
+			case "run":
+				if len(parts) > 1 {
+					n, err := strconv.Atoi(parts[1])
+					if err != nil {
+						panic(err)
+					}
+
+					run = n
+				} else {
+					run = -1
+				}
+			case "lookop":
+				for k = 0; k < len(ops); k++ {
+					if ops[k].Val == parts[1] {
+						fmt.Printf("  Op %d: %s %s\n", k, opnames[ops[k].Op], parts[1])
+					}
+				}
+			case "restart":
+				var err error
+				s, err = NewHamtShard(ds, width)
+				if err != nil {
+					panic(err)
+				}
+				i = -1
+				continue mainloop
+			case "print":
+				nd, err := s.Node()
+				if err != nil {
+					panic(err)
+				}
+				printDag(ds, nd.(*dag.ProtoNode), 0)
+			}
+		}
+		run--
+
+		switch o.Op {
+		case opAdd:
+			err := s.Set(ctx, o.Val, e)
+			if err != nil {
+				return nil, fmt.Errorf("inserting %s: %s", o.Val, err)
+			}
+		case opDel:
+			fmt.Println("deleting: ", o.Val)
+			err := s.Remove(ctx, o.Val)
+			if err != nil {
+				return nil, fmt.Errorf("deleting %s: %s", o.Val, err)
+			}
+		case opFind:
+			_, err := s.Find(ctx, o.Val)
+			if err != nil {
+				return nil, fmt.Errorf("finding %s: %s", o.Val, err)
+			}
+		}
+	}
+
+	return s, nil
+}
+
+func readCommand() string {
+	fmt.Print("> ")
+	scan := bufio.NewScanner(os.Stdin)
+	scan.Scan()
+	return scan.Text()
+}*/