Make pre-migration optional

cli/state.go

@@ -1355,7 +1355,7 @@ func ComputeStateHTMLTempl(w io.Writer, ts *types.TipSet, o *api.ComputeStateOut
 		"IsSlow":      isSlow,
 		"IsVerySlow":  isVerySlow,
 		"IntExit":     func(i exitcode.ExitCode) int64 { return int64(i) },
-		"SumGas":      sumGas,
+		"SumGas":      SumGas,
 		"CodeStr":     codeStr,
 		"Call":        call,
 		"PrintTiming": func() bool { return printTiming },
@@ -1423,7 +1423,7 @@ func isVerySlow(t time.Duration) bool {
 	return t > 50*time.Millisecond
 }
 
-func sumGas(changes []*types.GasTrace) types.GasTrace {
+func SumGas(changes []*types.GasTrace) types.GasTrace {
 	var out types.GasTrace
 	for _, gc := range changes {
 		out.TotalGas += gc.TotalGas

cmd/lotus-shed/gas-estimation.go

@@ -8,14 +8,13 @@ import (
 	"strconv"
 	"text/tabwriter"
 
-	"github.com/filecoin-project/go-state-types/abi"
-
-	"github.com/filecoin-project/go-state-types/network"
-
 	"github.com/ipfs/go-cid"
 	"github.com/urfave/cli/v2"
 	"golang.org/x/xerrors"
 
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/network"
+
 	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/beacon"
 	"github.com/filecoin-project/lotus/chain/beacon/drand"
@@ -29,9 +28,15 @@ import (
 	"github.com/filecoin-project/lotus/storage/sealer/ffiwrapper"
 )
 
-var gasEstimationCmd = &cli.Command{
-	Name:        "estimate-gas",
-	Description: "replay a message on the specified stateRoot and network version",
+// USAGE: Sync a node, then call migrate-nv17 on some old state. Pass in the cid of the migrated state root,
+// the epoch you migrated at, the network version you migrated to, and a message hash. You will be able to replay any
+// message from between the migration epoch, and where your node originally synced to. Note: You may run into issues
+// with nonces, or state that changed between the epoch you migrated at, and when the message was originally processed.
+// This can be avoided by replaying messages from close to the migration epoch, or circumvented by using a custom
+// FVM bundle.
+var gasTraceCmd = &cli.Command{
+	Name:        "trace-gas",
+	Description: "replay a message on the specified stateRoot and network version to get an execution trace",
 	ArgsUsage:   "[migratedStateRootCid migrationEpoch networkVersion messageHash]",
 	Flags: []cli.Flag{
 		&cli.StringFlag{
@@ -56,7 +61,7 @@ var gasEstimationCmd = &cli.Command{
 			return fmt.Errorf("failed to parse input: %w", err)
 		}
 
-		nv, err := strconv.ParseInt(cctx.Args().Get(2), 10, 64)
+		nv, err := strconv.ParseInt(cctx.Args().Get(2), 10, 32)
 		if err != nil {
 			return fmt.Errorf("failed to parse input: %w", err)
 		}
@@ -131,11 +136,12 @@ var gasEstimationCmd = &cli.Command{
 			return err
 		}
 
-		tw := tabwriter.NewWriter(os.Stdout, 2, 2, 2, ' ', 0)
+		tw := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', tabwriter.AlignRight)
 		res, err := sm.CallAtStateAndVersion(ctx, msg, executionTs, stateRootCid, network.Version(nv))
 		if err != nil {
 			return err
 		}
+		fmt.Println("Total gas used ", res.MsgRct.GasUsed)
 		printInternalExecutions(0, []types.ExecutionTrace{res.ExecutionTrace}, tw)
 
 		return tw.Flush()
@@ -144,10 +150,29 @@ var gasEstimationCmd = &cli.Command{
 
 func printInternalExecutions(depth int, trace []types.ExecutionTrace, tw *tabwriter.Writer) {
 	if depth == 0 {
-		_, _ = fmt.Fprintf(tw, "depth\tFrom\tTo\tValue\tMethod\tGasUsed\tExitCode\tReturn\n")
+		_, _ = fmt.Fprintf(tw, "Depth\tFrom\tTo\tMethod\tTotalGas\tComputeGas\tStorageGas\t\tExitCode\n")
 	}
 	for _, im := range trace {
-		_, _ = fmt.Fprintf(tw, "%d\t%s\t%s\t%s\t%d\t%d\t%d\t%x\n", depth, im.Msg.From, im.Msg.To, im.Msg.Value, im.Msg.Method, im.MsgRct.GasUsed, im.MsgRct.ExitCode, im.MsgRct.Return)
+		sumGas := lcli.SumGas(im.GasCharges)
+		_, _ = fmt.Fprintf(tw, "%d\t%s\t%s\t%d\t%d\t%d\t%d\t\t%d\n", depth, truncateString(im.Msg.From.String(), 10), truncateString(im.Msg.To.String(), 10), im.Msg.Method, sumGas.TotalGas, sumGas.ComputeGas, sumGas.StorageGas, im.MsgRct.ExitCode)
 		printInternalExecutions(depth+1, im.Subcalls, tw)
 	}
 }
+
+func truncateString(str string, length int) string {
+	if len(str) <= length {
+		return str
+	}
+
+	truncated := ""
+	count := 0
+	for _, char := range str {
+		truncated += string(char)
+		count++
+		if count >= length {
+			break
+		}
+	}
+	truncated += "..."
+	return truncated
+}

cmd/lotus-shed/main.go

@@ -76,7 +76,7 @@ func main() {
 		msigCmd,
 		fip36PollCmd,
 		invariantsCmd,
-		gasEstimationCmd,
+		gasTraceCmd,
 	}
 
 	app := &cli.App{

cmd/lotus-shed/migrations.go

@@ -53,6 +53,9 @@ var migrationsCmd = &cli.Command{
 			Name:  "repo",
 			Value: "~/.lotus",
 		},
+		&cli.BoolFlag{
+			Name: "skip-pre-migration",
+		},
 		&cli.BoolFlag{
 			Name: "check-invariants",
 		},
@@ -119,12 +122,27 @@ var migrationsCmd = &cli.Command{
 			return err
 		}
 
-		ts1, err := cs.GetTipsetByHeight(ctx, blk.Height-240, migrationTs, false)
+		startTime := time.Now()
+
+		newCid2, err := filcns.UpgradeActorsV9(ctx, sm, nv15.NewMemMigrationCache(), nil, blk.ParentStateRoot, blk.Height-1, migrationTs)
 		if err != nil {
 			return err
 		}
 
-		startTime := time.Now()
+		uncachedMigrationTime := time.Since(startTime)
+
+		fmt.Println("migration height ", blk.Height-1)
+		fmt.Println("old cid ", blk.ParentStateRoot)
+		fmt.Println("new cid ", newCid2)
+		fmt.Println("completed round actual (without cache), took ", uncachedMigrationTime)
+
+		if !cctx.IsSet("skip-pre-migration") {
+			startTime = time.Now()
+
+			ts1, err := cs.GetTipsetByHeight(ctx, blk.Height-240, migrationTs, false)
+			if err != nil {
+				return err
+			}
 
 			err = filcns.PreUpgradeActorsV9(ctx, sm, cache, ts1.ParentState(), ts1.Height()-1, ts1)
 			if err != nil {
@@ -156,26 +174,14 @@ var migrationsCmd = &cli.Command{
 
 			cachedMigrationTime := time.Since(startTime)
 
-		startTime = time.Now()
-
-		newCid2, err := filcns.UpgradeActorsV9(ctx, sm, nv15.NewMemMigrationCache(), nil, blk.ParentStateRoot, blk.Height-1, migrationTs)
-		if err != nil {
-			return err
-		}
-
-		uncachedMigrationTime := time.Since(startTime)
-
 			if newCid1 != newCid2 {
 				return xerrors.Errorf("got different results with and without the cache: %s, %s", newCid1,
 					newCid2)
 			}
-
-		fmt.Println("migration height ", blk.Height-1)
-		fmt.Println("new cid ", newCid2)
 			fmt.Println("completed premigration 1, took ", preMigration1Time)
 			fmt.Println("completed premigration 2, took ", preMigration2Time)
 			fmt.Println("completed round actual (with cache), took ", cachedMigrationTime)
-		fmt.Println("completed round actual (without cache), took ", uncachedMigrationTime)
+		}
 
 		if cctx.Bool("check-invariants") {
 			err = checkMigrationInvariants(ctx, blk.ParentStateRoot, newCid2, bs, blk.Height-1)