331 lines
9.8 KiB
Go
331 lines
9.8 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU 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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// go-ethereum 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"encoding/json"
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"fmt"
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"os"
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"runtime"
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"strconv"
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"sync/atomic"
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"time"
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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/console"
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"github.com/ethereum/go-ethereum/core"
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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/ethdb"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/trie"
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"github.com/syndtr/goleveldb/leveldb/util"
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"gopkg.in/urfave/cli.v1"
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)
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var (
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initCommand = cli.Command{
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Action: utils.MigrateFlags(initGenesis),
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Name: "init",
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Usage: "Bootstrap and initialize a new genesis block",
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ArgsUsage: "<genesisPath>",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.LightModeFlag,
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},
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Category: "BLOCKCHAIN COMMANDS",
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Description: `
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The init command initializes a new genesis block and definition for the network.
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This is a destructive action and changes the network in which you will be
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participating.
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It expects the genesis file as argument.`,
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}
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importCommand = cli.Command{
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Action: utils.MigrateFlags(importChain),
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Name: "import",
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Usage: "Import a blockchain file",
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ArgsUsage: "<filename> (<filename 2> ... <filename N>) ",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.CacheFlag,
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utils.LightModeFlag,
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},
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Category: "BLOCKCHAIN COMMANDS",
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Description: `
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The import command imports blocks from an RLP-encoded form. The form can be one file
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with several RLP-encoded blocks, or several files can be used.
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If only one file is used, import error will result in failure. If several files are used,
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processing will proceed even if an individual RLP-file import failure occurs.`,
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}
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exportCommand = cli.Command{
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Action: utils.MigrateFlags(exportChain),
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Name: "export",
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Usage: "Export blockchain into file",
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ArgsUsage: "<filename> [<blockNumFirst> <blockNumLast>]",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.CacheFlag,
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utils.LightModeFlag,
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},
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Category: "BLOCKCHAIN COMMANDS",
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Description: `
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Requires a first argument of the file to write to.
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Optional second and third arguments control the first and
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last block to write. In this mode, the file will be appended
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if already existing.`,
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}
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removedbCommand = cli.Command{
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Action: utils.MigrateFlags(removeDB),
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Name: "removedb",
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Usage: "Remove blockchain and state databases",
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ArgsUsage: " ",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.LightModeFlag,
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},
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Category: "BLOCKCHAIN COMMANDS",
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Description: `
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Remove blockchain and state databases`,
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}
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dumpCommand = cli.Command{
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Action: utils.MigrateFlags(dump),
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Name: "dump",
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Usage: "Dump a specific block from storage",
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ArgsUsage: "[<blockHash> | <blockNum>]...",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.CacheFlag,
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utils.LightModeFlag,
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},
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Category: "BLOCKCHAIN COMMANDS",
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Description: `
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The arguments are interpreted as block numbers or hashes.
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Use "ethereum dump 0" to dump the genesis block.`,
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}
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)
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// initGenesis will initialise the given JSON format genesis file and writes it as
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// the zero'd block (i.e. genesis) or will fail hard if it can't succeed.
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func initGenesis(ctx *cli.Context) error {
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// Make sure we have a valid genesis JSON
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genesisPath := ctx.Args().First()
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if len(genesisPath) == 0 {
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utils.Fatalf("Must supply path to genesis JSON file")
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}
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file, err := os.Open(genesisPath)
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if err != nil {
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utils.Fatalf("Failed to read genesis file: %v", err)
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}
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defer file.Close()
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genesis := new(core.Genesis)
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if err := json.NewDecoder(file).Decode(genesis); err != nil {
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utils.Fatalf("invalid genesis file: %v", err)
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}
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// Open an initialise both full and light databases
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stack := makeFullNode(ctx)
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for _, name := range []string{"chaindata", "lightchaindata"} {
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chaindb, err := stack.OpenDatabase(name, 0, 0)
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if err != nil {
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utils.Fatalf("Failed to open database: %v", err)
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}
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_, hash, err := core.SetupGenesisBlock(chaindb, genesis)
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if err != nil {
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utils.Fatalf("Failed to write genesis block: %v", err)
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}
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log.Info("Successfully wrote genesis state", "database", name, "hash", hash)
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}
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return nil
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}
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func importChain(ctx *cli.Context) error {
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if len(ctx.Args()) < 1 {
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utils.Fatalf("This command requires an argument.")
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}
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stack := makeFullNode(ctx)
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chain, chainDb := utils.MakeChain(ctx, stack)
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defer chainDb.Close()
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// Start periodically gathering memory profiles
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var peakMemAlloc, peakMemSys uint64
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go func() {
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stats := new(runtime.MemStats)
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for {
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runtime.ReadMemStats(stats)
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if atomic.LoadUint64(&peakMemAlloc) < stats.Alloc {
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atomic.StoreUint64(&peakMemAlloc, stats.Alloc)
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}
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if atomic.LoadUint64(&peakMemSys) < stats.Sys {
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atomic.StoreUint64(&peakMemSys, stats.Sys)
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}
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time.Sleep(5 * time.Second)
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}
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}()
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// Import the chain
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start := time.Now()
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if len(ctx.Args()) == 1 {
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if err := utils.ImportChain(chain, ctx.Args().First()); err != nil {
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utils.Fatalf("Import error: %v", err)
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}
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} else {
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for _, arg := range ctx.Args() {
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if err := utils.ImportChain(chain, arg); err != nil {
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log.Error("Import error", "file", arg, "err", err)
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}
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}
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}
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fmt.Printf("Import done in %v.\n\n", time.Since(start))
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// Output pre-compaction stats mostly to see the import trashing
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db := chainDb.(*ethdb.LDBDatabase)
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stats, err := db.LDB().GetProperty("leveldb.stats")
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if err != nil {
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utils.Fatalf("Failed to read database stats: %v", err)
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}
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fmt.Println(stats)
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fmt.Printf("Trie cache misses: %d\n", trie.CacheMisses())
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fmt.Printf("Trie cache unloads: %d\n\n", trie.CacheUnloads())
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// Print the memory statistics used by the importing
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mem := new(runtime.MemStats)
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runtime.ReadMemStats(mem)
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fmt.Printf("Object memory: %.3f MB current, %.3f MB peak\n", float64(mem.Alloc)/1024/1024, float64(atomic.LoadUint64(&peakMemAlloc))/1024/1024)
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fmt.Printf("System memory: %.3f MB current, %.3f MB peak\n", float64(mem.Sys)/1024/1024, float64(atomic.LoadUint64(&peakMemSys))/1024/1024)
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fmt.Printf("Allocations: %.3f million\n", float64(mem.Mallocs)/1000000)
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fmt.Printf("GC pause: %v\n\n", time.Duration(mem.PauseTotalNs))
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if ctx.GlobalIsSet(utils.NoCompactionFlag.Name) {
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return nil
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}
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// Compact the entire database to more accurately measure disk io and print the stats
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start = time.Now()
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fmt.Println("Compacting entire database...")
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if err = db.LDB().CompactRange(util.Range{}); 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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stats, err = db.LDB().GetProperty("leveldb.stats")
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if err != nil {
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utils.Fatalf("Failed to read database stats: %v", err)
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}
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fmt.Println(stats)
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return nil
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}
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func exportChain(ctx *cli.Context) error {
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if len(ctx.Args()) < 1 {
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utils.Fatalf("This command requires an argument.")
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}
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stack := makeFullNode(ctx)
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chain, _ := utils.MakeChain(ctx, stack)
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start := time.Now()
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var err error
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fp := ctx.Args().First()
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if len(ctx.Args()) < 3 {
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err = utils.ExportChain(chain, fp)
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} else {
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// This can be improved to allow for numbers larger than 9223372036854775807
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first, ferr := strconv.ParseInt(ctx.Args().Get(1), 10, 64)
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last, lerr := strconv.ParseInt(ctx.Args().Get(2), 10, 64)
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if ferr != nil || lerr != nil {
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utils.Fatalf("Export error in parsing parameters: block number not an integer\n")
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}
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if first < 0 || last < 0 {
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utils.Fatalf("Export error: block number must be greater than 0\n")
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}
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err = utils.ExportAppendChain(chain, fp, uint64(first), uint64(last))
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}
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if err != nil {
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utils.Fatalf("Export error: %v\n", err)
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}
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fmt.Printf("Export done in %v", time.Since(start))
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return nil
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}
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func removeDB(ctx *cli.Context) error {
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stack, _ := makeConfigNode(ctx)
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for _, name := range []string{"chaindata", "lightchaindata"} {
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// Ensure the database exists in the first place
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logger := log.New("database", name)
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dbdir := stack.ResolvePath(name)
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if !common.FileExist(dbdir) {
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logger.Info("Database doesn't exist, skipping", "path", dbdir)
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continue
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}
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// Confirm removal and execute
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fmt.Println(dbdir)
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confirm, err := console.Stdin.PromptConfirm("Remove this database?")
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switch {
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case err != nil:
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utils.Fatalf("%v", err)
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case !confirm:
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logger.Warn("Database deletion aborted")
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default:
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start := time.Now()
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os.RemoveAll(dbdir)
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logger.Info("Database successfully deleted", "elapsed", common.PrettyDuration(time.Since(start)))
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}
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}
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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 := makeFullNode(ctx)
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chain, chainDb := utils.MakeChain(ctx, stack)
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for _, arg := range ctx.Args() {
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var block *types.Block
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if hashish(arg) {
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block = chain.GetBlockByHash(common.HexToHash(arg))
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} else {
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num, _ := strconv.Atoi(arg)
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block = chain.GetBlockByNumber(uint64(num))
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}
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if block == nil {
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fmt.Println("{}")
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utils.Fatalf("block not found")
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} else {
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state, err := state.New(block.Root(), state.NewDatabase(chainDb))
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if err != nil {
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utils.Fatalf("could not create new state: %v", err)
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}
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fmt.Printf("%s\n", state.Dump())
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}
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}
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chainDb.Close()
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return nil
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}
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// hashish returns true for strings that look like hashes.
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func hashish(x string) bool {
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_, err := strconv.Atoi(x)
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return err != nil
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}
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