generate WAL on the fly (Refs #468)

scripts/cutWALUntil/main.go

@@ -1,65 +0,0 @@
-/*
-	cutWALUntil is a small utility for cutting a WAL until the given height
-	(inclusively). Note it does not include last cs.EndHeightMessage.
-
-	Usage:
-			cutWALUntil <path-to-wal> height-to-stop <output-wal>
-*/
-package main
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"strconv"
-
-	cs "github.com/tendermint/tendermint/consensus"
-)
-
-func main() {
-	if len(os.Args) < 4 {
-		fmt.Println("3 arguments required: <path-to-wal> <height-to-stop> <output-wal>")
-		os.Exit(1)
-	}
-
-	var heightToStop int64
-	var err error
-	if heightToStop, err = strconv.ParseInt(os.Args[2], 10, 64); err != nil {
-		panic(fmt.Errorf("failed to parse height: %v", err))
-	}
-
-	in, err := os.Open(os.Args[1])
-	if err != nil {
-		panic(fmt.Errorf("failed to open input WAL file: %v", err))
-	}
-	defer in.Close()
-
-	out, err := os.Create(os.Args[3])
-	if err != nil {
-		panic(fmt.Errorf("failed to open output WAL file: %v", err))
-	}
-	defer out.Close()
-
-	enc := cs.NewWALEncoder(out)
-	dec := cs.NewWALDecoder(in)
-
-	for {
-		msg, err := dec.Decode()
-		if err == io.EOF {
-			break
-		} else if err != nil {
-			panic(fmt.Errorf("failed to decode msg: %v", err))
-		}
-
-		if m, ok := msg.Msg.(cs.EndHeightMessage); ok {
-			if m.Height == heightToStop {
-				break
-			}
-		}
-
-		err = enc.Encode(msg)
-		if err != nil {
-			panic(fmt.Errorf("failed to encode msg: %v", err))
-		}
-	}
-}