lbcwallet/cmd/dropwtxmgr/main.go

146 lines
3 KiB
Go

// Copyright (c) 2015-2016 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package main
import (
"bufio"
"encoding/binary"
"fmt"
"os"
"path/filepath"
"github.com/jessevdk/go-flags"
"github.com/roasbeef/btcutil"
"github.com/roasbeef/btcwallet/walletdb"
_ "github.com/roasbeef/btcwallet/walletdb/bdb"
"github.com/roasbeef/btcwallet/wtxmgr"
)
const defaultNet = "mainnet"
var datadir = btcutil.AppDataDir("btcwallet", false)
// Flags.
var opts = struct {
Force bool `short:"f" description:"Force removal without prompt"`
DbPath string `long:"db" description:"Path to wallet database"`
}{
Force: false,
DbPath: filepath.Join(datadir, defaultNet, "wallet.db"),
}
func init() {
_, err := flags.Parse(&opts)
if err != nil {
os.Exit(1)
}
}
var (
// Namespace keys.
syncBucketName = []byte("sync")
waddrmgrNamespace = []byte("waddrmgr")
wtxmgrNamespace = []byte("wtxmgr")
// Sync related key names (sync bucket).
syncedToName = []byte("syncedto")
startBlockName = []byte("startblock")
recentBlocksName = []byte("recentblocks")
)
func yes(s string) bool {
switch s {
case "y", "Y", "yes", "Yes":
return true
default:
return false
}
}
func no(s string) bool {
switch s {
case "n", "N", "no", "No":
return true
default:
return false
}
}
func main() {
os.Exit(mainInt())
}
func mainInt() int {
fmt.Println("Database path:", opts.DbPath)
_, err := os.Stat(opts.DbPath)
if os.IsNotExist(err) {
fmt.Println("Database file does not exist")
return 1
}
for !opts.Force {
fmt.Print("Drop all btcwallet transaction history? [y/N] ")
scanner := bufio.NewScanner(bufio.NewReader(os.Stdin))
if !scanner.Scan() {
// Exit on EOF.
return 0
}
err := scanner.Err()
if err != nil {
fmt.Println()
fmt.Println(err)
return 1
}
resp := scanner.Text()
if yes(resp) {
break
}
if no(resp) || resp == "" {
return 0
}
fmt.Println("Enter yes or no.")
}
db, err := walletdb.Open("bdb", opts.DbPath)
if err != nil {
fmt.Println("Failed to open database:", err)
return 1
}
defer db.Close()
fmt.Println("Dropping wtxmgr namespace")
err = walletdb.Update(db, func(tx walletdb.ReadWriteTx) error {
err := tx.DeleteTopLevelBucket(wtxmgrNamespace)
if err != nil && err != walletdb.ErrBucketNotFound {
return err
}
ns, err := tx.CreateTopLevelBucket(wtxmgrNamespace)
if err != nil {
return err
}
err = wtxmgr.Create(ns)
if err != nil {
return err
}
ns = tx.ReadWriteBucket(waddrmgrNamespace).NestedReadWriteBucket(syncBucketName)
startBlock := ns.Get(startBlockName)
err = ns.Put(syncedToName, startBlock)
if err != nil {
return err
}
recentBlocks := make([]byte, 40)
copy(recentBlocks[0:4], startBlock[0:4])
copy(recentBlocks[8:], startBlock[4:])
binary.LittleEndian.PutUint32(recentBlocks[4:8], uint32(1))
return ns.Put(recentBlocksName, recentBlocks)
})
if err != nil {
fmt.Println("Failed to drop and re-create namespace:", err)
return 1
}
return 0
}