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-rw-r--r--cmd/geth/chaincmd.go196
-rw-r--r--cmd/geth/main.go1
2 files changed, 196 insertions, 1 deletions
diff --git a/cmd/geth/chaincmd.go b/cmd/geth/chaincmd.go
index 12bc1d7c6..f9fd8c013 100644
--- a/cmd/geth/chaincmd.go
+++ b/cmd/geth/chaincmd.go
@@ -19,6 +19,7 @@ package main
import (
"encoding/json"
"fmt"
+ "math/big"
"os"
"runtime"
"strconv"
@@ -31,7 +32,9 @@ import (
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
+ "github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/ethdb"
+ "github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/trie"
"github.com/syndtr/goleveldb/leveldb/util"
@@ -71,7 +74,7 @@ It expects the genesis file as argument.`,
The import command imports blocks from an RLP-encoded form. The form can be one file
with several RLP-encoded blocks, or several files can be used.
-If only one file is used, import error will result in failure. If several files are used,
+If only one file is used, import error will result in failure. If several files are used,
processing will proceed even if an individual RLP-file import failure occurs.`,
}
exportCommand = cli.Command{
@@ -91,6 +94,21 @@ Optional second and third arguments control the first and
last block to write. In this mode, the file will be appended
if already existing.`,
}
+ copydbCommand = cli.Command{
+ Action: utils.MigrateFlags(copyDb),
+ Name: "copydb",
+ Usage: "Copy from one chain DB into another using the downloader",
+ ArgsUsage: "<filename>",
+ Flags: []cli.Flag{
+ utils.DataDirFlag,
+ utils.CacheFlag,
+ utils.SyncModeFlag,
+ utils.FakePoWFlag,
+ },
+ Category: "BLOCKCHAIN COMMANDS",
+ Description: `
+The first argument must be the directory containing the blockchain to download from`,
+ }
removedbCommand = cli.Command{
Action: utils.MigrateFlags(removeDB),
Name: "removedb",
@@ -268,6 +286,182 @@ func exportChain(ctx *cli.Context) error {
return nil
}
+type localPeer struct {
+ chainDb ethdb.Database
+ hc *core.HeaderChain
+ dl *downloader.Downloader
+}
+
+func (lp *localPeer) Head() (common.Hash, *big.Int) {
+ header := lp.hc.CurrentHeader()
+ return header.Hash(), header.Number
+}
+
+func (lp *localPeer) RequestHeadersByHash(hash common.Hash, amount int, skip int, reverse bool) error {
+ var (
+ headers []*types.Header
+ unknown bool
+ )
+
+ for !unknown && len(headers) < amount {
+ origin := lp.hc.GetHeaderByHash(hash)
+ if origin == nil {
+ break
+ }
+
+ number := origin.Number.Uint64()
+ headers = append(headers, origin)
+ if reverse {
+ for i := 0; i < int(skip)+1; i++ {
+ if header := lp.hc.GetHeader(hash, number); header != nil {
+ hash = header.ParentHash
+ number--
+ } else {
+ unknown = true
+ break
+ }
+ }
+ } else {
+ var (
+ current = origin.Number.Uint64()
+ next = current + uint64(skip) + 1
+ )
+ if header := lp.hc.GetHeaderByNumber(next); header != nil {
+ if lp.hc.GetBlockHashesFromHash(header.Hash(), uint64(skip+1))[skip] == hash {
+ hash = header.Hash()
+ } else {
+ unknown = true
+ }
+ } else {
+ unknown = true
+ }
+ }
+ }
+
+ lp.dl.DeliverHeaders("local", headers)
+ return nil
+}
+
+func (lp *localPeer) RequestHeadersByNumber(num uint64, amount int, skip int, reverse bool) error {
+ var (
+ headers []*types.Header
+ unknown bool
+ )
+
+ for !unknown && len(headers) < amount {
+ origin := lp.hc.GetHeaderByNumber(num)
+ if origin == nil {
+ break
+ }
+
+ if reverse {
+ if num >= uint64(skip+1) {
+ num -= uint64(skip + 1)
+ } else {
+ unknown = true
+ }
+ } else {
+ num += uint64(skip + 1)
+ }
+ headers = append(headers, origin)
+ }
+
+ lp.dl.DeliverHeaders("local", headers)
+ return nil
+}
+
+func (lp *localPeer) RequestBodies(hashes []common.Hash) error {
+ var (
+ transactions [][]*types.Transaction
+ uncles [][]*types.Header
+ )
+
+ for _, hash := range hashes {
+ block := core.GetBlock(lp.chainDb, hash, lp.hc.GetBlockNumber(hash))
+ transactions = append(transactions, block.Transactions())
+ uncles = append(uncles, block.Uncles())
+ }
+
+ lp.dl.DeliverBodies("local", transactions, uncles)
+ return nil
+}
+
+func (lp *localPeer) RequestReceipts(hashes []common.Hash) error {
+ var receipts [][]*types.Receipt
+
+ for _, hash := range hashes {
+ receipts = append(receipts, core.GetBlockReceipts(lp.chainDb, hash, lp.hc.GetBlockNumber(hash)))
+ }
+
+ lp.dl.DeliverReceipts("local", receipts)
+ return nil
+}
+
+func (lp *localPeer) RequestNodeData(hashes []common.Hash) error {
+ var data [][]byte
+
+ for _, hash := range hashes {
+ if entry, err := lp.chainDb.Get(hash.Bytes()); err == nil {
+ data = append(data, entry)
+ }
+ }
+
+ lp.dl.DeliverNodeData("local", data)
+ return nil
+}
+
+func copyDb(ctx *cli.Context) error {
+ if len(ctx.Args()) != 1 {
+ utils.Fatalf("This command requires an argument.")
+ }
+
+ stack := makeFullNode(ctx)
+ chain, chainDb := utils.MakeChain(ctx, stack)
+ start := time.Now()
+
+ syncmode := *utils.GlobalTextMarshaler(ctx, utils.SyncModeFlag.Name).(*downloader.SyncMode)
+ mux := new(event.TypeMux)
+ dl := downloader.New(syncmode, chainDb, mux, chain, nil, nil)
+
+ var err error
+ filename := ctx.Args().First()
+ cache := ctx.GlobalInt(utils.CacheFlag.Name)
+ handles := 256
+ localdb, err := ethdb.NewLDBDatabase(filename, cache, handles)
+ if err != nil {
+ return err
+ }
+
+ hc, err := core.NewHeaderChain(localdb, chain.Config(), chain.Engine(), func() bool { return false })
+ if err != nil {
+ return err
+ }
+
+ peer := &localPeer{localdb, hc, dl}
+ if err := dl.RegisterPeer("local", 63, peer); err != nil {
+ return err
+ }
+
+ currentHeader := hc.CurrentHeader()
+ if err := dl.Synchronise("local", currentHeader.Hash(), hc.GetTd(currentHeader.Hash(), currentHeader.Number.Uint64()), syncmode); err != nil {
+ return err
+ }
+ for dl.Synchronising() {
+ time.Sleep(10 * time.Millisecond)
+ }
+
+ fmt.Printf("Database copy done in %v", time.Since(start))
+
+ start = time.Now()
+ fmt.Println("Compacting entire database...")
+ if err = chainDb.(*ethdb.LDBDatabase).LDB().CompactRange(util.Range{}); err != nil {
+ utils.Fatalf("Compaction failed: %v", err)
+ }
+ fmt.Printf("Compaction done in %v.\n\n", time.Since(start))
+
+ return nil
+}
+
func removeDB(ctx *cli.Context) error {
stack, _ := makeConfigNode(ctx)
diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index 8166c9ce8..88f3528f3 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -146,6 +146,7 @@ func init() {
initCommand,
importCommand,
exportCommand,
+ copydbCommand,
removedbCommand,
dumpCommand,
// See monitorcmd.go: