forked from cerc-io/plugeth
cmd/geth, eth/downloader: remove copydb command (#22501)
* cmd/geth: remove copydb command * eth/downloader: remove fakepeer
This commit is contained in:
Martin Holst Swende
GitHub
parent
c6d45009f1
commit
faacc8e0fa
@ -28,14 +28,10 @@ import (
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/eth/downloader"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/metrics"
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"github.com/ethereum/go-ethereum/trie"
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"gopkg.in/urfave/cli.v1"
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)
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@ -150,27 +146,6 @@ be gzipped.`,
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Category: "BLOCKCHAIN COMMANDS",
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Description: `
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The export-preimages command export hash preimages to an RLP encoded stream`,
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}
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copydbCommand = cli.Command{
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Action: utils.MigrateFlags(copyDb),
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Name: "copydb",
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Usage: "Create a local chain from a target chaindata folder",
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ArgsUsage: "<sourceChaindataDir>",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.CacheFlag,
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utils.SyncModeFlag,
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utils.FakePoWFlag,
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utils.MainnetFlag,
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utils.RopstenFlag,
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utils.RinkebyFlag,
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utils.TxLookupLimitFlag,
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utils.GoerliFlag,
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utils.YoloV3Flag,
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},
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Category: "BLOCKCHAIN COMMANDS",
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Description: `
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The first argument must be the directory containing the blockchain to download from`,
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}
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dumpCommand = cli.Command{
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Action: utils.MigrateFlags(dump),
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@ -394,62 +369,6 @@ func exportPreimages(ctx *cli.Context) error {
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return nil
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}
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func copyDb(ctx *cli.Context) error {
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// Ensure we have a source chain directory to copy
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if len(ctx.Args()) < 1 {
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utils.Fatalf("Source chaindata directory path argument missing")
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}
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if len(ctx.Args()) < 2 {
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utils.Fatalf("Source ancient chain directory path argument missing")
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}
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// Initialize a new chain for the running node to sync into
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stack, _ := makeConfigNode(ctx)
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defer stack.Close()
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chain, chainDb := utils.MakeChain(ctx, stack, false)
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syncMode := *utils.GlobalTextMarshaler(ctx, utils.SyncModeFlag.Name).(*downloader.SyncMode)
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var syncBloom *trie.SyncBloom
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if syncMode == downloader.FastSync {
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syncBloom = trie.NewSyncBloom(uint64(ctx.GlobalInt(utils.CacheFlag.Name)/2), chainDb)
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}
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dl := downloader.New(0, chainDb, syncBloom, new(event.TypeMux), chain, nil, nil)
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// Create a source peer to satisfy downloader requests from
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db, err := rawdb.NewLevelDBDatabaseWithFreezer(ctx.Args().First(), ctx.GlobalInt(utils.CacheFlag.Name)/2, 256, ctx.Args().Get(1), "")
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if err != nil {
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return err
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}
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hc, err := core.NewHeaderChain(db, chain.Config(), chain.Engine(), func() bool { return false })
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if err != nil {
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return err
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}
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peer := downloader.NewFakePeer("local", db, hc, dl)
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if err = dl.RegisterPeer("local", 63, peer); err != nil {
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return err
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}
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// Synchronise with the simulated peer
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start := time.Now()
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currentHeader := hc.CurrentHeader()
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if err = dl.Synchronise("local", currentHeader.Hash(), hc.GetTd(currentHeader.Hash(), currentHeader.Number.Uint64()), syncMode); err != nil {
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return err
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}
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for dl.Synchronising() {
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time.Sleep(10 * time.Millisecond)
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}
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fmt.Printf("Database copy done in %v\n", time.Since(start))
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// Compact the entire database to remove any sync overhead
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start = time.Now()
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fmt.Println("Compacting entire database...")
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if err = db.Compact(nil, nil); err != nil {
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utils.Fatalf("Compaction failed: %v", err)
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}
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fmt.Printf("Compaction done in %v.\n\n", time.Since(start))
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return nil
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}
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func dump(ctx *cli.Context) error {
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stack, _ := makeConfigNode(ctx)
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defer stack.Close()
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@ -212,7 +212,6 @@ func init() {
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exportCommand,
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importPreimagesCommand,
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exportPreimagesCommand,
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copydbCommand,
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removedbCommand,
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dumpCommand,
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dumpGenesisCommand,
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@ -1,161 +0,0 @@
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// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package downloader
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/ethdb"
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)
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// FakePeer is a mock downloader peer that operates on a local database instance
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// instead of being an actual live node. It's useful for testing and to implement
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// sync commands from an existing local database.
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type FakePeer struct {
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id string
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db ethdb.Database
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hc *core.HeaderChain
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dl *Downloader
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}
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// NewFakePeer creates a new mock downloader peer with the given data sources.
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func NewFakePeer(id string, db ethdb.Database, hc *core.HeaderChain, dl *Downloader) *FakePeer {
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return &FakePeer{id: id, db: db, hc: hc, dl: dl}
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}
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// Head implements downloader.Peer, returning the current head hash and number
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// of the best known header.
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func (p *FakePeer) Head() (common.Hash, *big.Int) {
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header := p.hc.CurrentHeader()
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return header.Hash(), header.Number
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}
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// RequestHeadersByHash implements downloader.Peer, returning a batch of headers
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// defined by the origin hash and the associated query parameters.
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func (p *FakePeer) RequestHeadersByHash(hash common.Hash, amount int, skip int, reverse bool) error {
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var (
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headers []*types.Header
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unknown bool
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)
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for !unknown && len(headers) < amount {
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origin := p.hc.GetHeaderByHash(hash)
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if origin == nil {
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break
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}
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number := origin.Number.Uint64()
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headers = append(headers, origin)
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if reverse {
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for i := 0; i <= skip; i++ {
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if header := p.hc.GetHeader(hash, number); header != nil {
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hash = header.ParentHash
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number--
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} else {
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unknown = true
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break
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}
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}
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} else {
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var (
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current = origin.Number.Uint64()
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next = current + uint64(skip) + 1
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)
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if header := p.hc.GetHeaderByNumber(next); header != nil {
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if p.hc.GetBlockHashesFromHash(header.Hash(), uint64(skip+1))[skip] == hash {
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hash = header.Hash()
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} else {
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unknown = true
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}
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} else {
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unknown = true
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}
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}
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}
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p.dl.DeliverHeaders(p.id, headers)
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return nil
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}
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// RequestHeadersByNumber implements downloader.Peer, returning a batch of headers
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// defined by the origin number and the associated query parameters.
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func (p *FakePeer) RequestHeadersByNumber(number uint64, amount int, skip int, reverse bool) error {
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var (
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headers []*types.Header
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unknown bool
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)
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for !unknown && len(headers) < amount {
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origin := p.hc.GetHeaderByNumber(number)
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if origin == nil {
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break
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}
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if reverse {
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if number >= uint64(skip+1) {
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number -= uint64(skip + 1)
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} else {
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unknown = true
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}
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} else {
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number += uint64(skip + 1)
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}
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headers = append(headers, origin)
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}
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p.dl.DeliverHeaders(p.id, headers)
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return nil
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}
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// RequestBodies implements downloader.Peer, returning a batch of block bodies
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// corresponding to the specified block hashes.
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func (p *FakePeer) RequestBodies(hashes []common.Hash) error {
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var (
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txs [][]*types.Transaction
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uncles [][]*types.Header
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)
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for _, hash := range hashes {
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block := rawdb.ReadBlock(p.db, hash, *p.hc.GetBlockNumber(hash))
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txs = append(txs, block.Transactions())
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uncles = append(uncles, block.Uncles())
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}
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p.dl.DeliverBodies(p.id, txs, uncles)
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return nil
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}
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// RequestReceipts implements downloader.Peer, returning a batch of transaction
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// receipts corresponding to the specified block hashes.
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func (p *FakePeer) RequestReceipts(hashes []common.Hash) error {
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var receipts [][]*types.Receipt
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for _, hash := range hashes {
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receipts = append(receipts, rawdb.ReadRawReceipts(p.db, hash, *p.hc.GetBlockNumber(hash)))
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}
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p.dl.DeliverReceipts(p.id, receipts)
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return nil
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}
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// RequestNodeData implements downloader.Peer, returning a batch of state trie
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// nodes corresponding to the specified trie hashes.
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func (p *FakePeer) RequestNodeData(hashes []common.Hash) error {
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var data [][]byte
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for _, hash := range hashes {
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if entry, err := p.db.Get(hash.Bytes()); err == nil {
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data = append(data, entry)
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}
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}
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p.dl.DeliverNodeData(p.id, data)
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return nil
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}
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