mirror of https://github.com/ethereum/go-ethereum
Merge pull request #1123 from fjl/lean-blockchain-commands
cmd/geth: leaner blockchain commandspull/1155/head
Jeffrey Wilcke
10 years ago
commit
9f467c387a
@ -0,0 +1,159 @@ |
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package main |
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|
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import ( |
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"fmt" |
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"os" |
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"path/filepath" |
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"strconv" |
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"time" |
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|
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"github.com/codegangsta/cli" |
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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/state" |
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"github.com/ethereum/go-ethereum/core/types" |
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"github.com/ethereum/go-ethereum/logger/glog" |
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) |
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|
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var ( |
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importCommand = cli.Command{ |
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Action: importChain, |
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Name: "import", |
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Usage: `import a blockchain file`, |
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} |
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exportCommand = cli.Command{ |
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Action: exportChain, |
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Name: "export", |
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Usage: `export blockchain into file`, |
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} |
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upgradedbCommand = cli.Command{ |
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Action: upgradeDB, |
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Name: "upgradedb", |
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Usage: "upgrade chainblock database", |
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} |
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removedbCommand = cli.Command{ |
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Action: removeDB, |
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Name: "removedb", |
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Usage: "Remove blockchain and state databases", |
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} |
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dumpCommand = cli.Command{ |
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Action: dump, |
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Name: "dump", |
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Usage: `dump a specific block from storage`, |
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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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) |
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|
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func importChain(ctx *cli.Context) { |
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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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chain, blockDB, stateDB, extraDB := utils.MakeChain(ctx) |
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start := time.Now() |
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err := utils.ImportChain(chain, ctx.Args().First()) |
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closeAll(blockDB, stateDB, extraDB) |
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if err != nil { |
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utils.Fatalf("Import error: %v", err) |
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} |
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fmt.Printf("Import done in %v", time.Since(start)) |
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} |
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|
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func exportChain(ctx *cli.Context) { |
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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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chain, _, _, _ := utils.MakeChain(ctx) |
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start := time.Now() |
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if err := utils.ExportChain(chain, ctx.Args().First()); 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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} |
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|
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func removeDB(ctx *cli.Context) { |
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confirm, err := utils.PromptConfirm("Remove local databases?") |
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if err != nil { |
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utils.Fatalf("%v", err) |
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} |
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if confirm { |
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fmt.Println("Removing chain and state databases...") |
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start := time.Now() |
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os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "blockchain")) |
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os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "state")) |
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|
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fmt.Printf("Removed in %v\n", time.Since(start)) |
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} else { |
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fmt.Println("Operation aborted") |
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} |
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} |
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|
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func upgradeDB(ctx *cli.Context) { |
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glog.Infoln("Upgrading blockchain database") |
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chain, blockDB, stateDB, extraDB := utils.MakeChain(ctx) |
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v, _ := blockDB.Get([]byte("BlockchainVersion")) |
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bcVersion := int(common.NewValue(v).Uint()) |
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if bcVersion == 0 { |
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bcVersion = core.BlockChainVersion |
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} |
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|
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// Export the current chain.
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filename := fmt.Sprintf("blockchain_%d_%s.chain", bcVersion, time.Now().Format("20060102_150405")) |
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exportFile := filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), filename) |
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if err := utils.ExportChain(chain, exportFile); err != nil { |
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utils.Fatalf("Unable to export chain for reimport %s", err) |
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} |
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closeAll(blockDB, stateDB, extraDB) |
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os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "blockchain")) |
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os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "state")) |
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|
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// Import the chain file.
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chain, blockDB, stateDB, extraDB = utils.MakeChain(ctx) |
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blockDB.Put([]byte("BlockchainVersion"), common.NewValue(core.BlockChainVersion).Bytes()) |
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err := utils.ImportChain(chain, exportFile) |
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closeAll(blockDB, stateDB, extraDB) |
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if err != nil { |
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utils.Fatalf("Import error %v (a backup is made in %s, use the import command to import it)", err, exportFile) |
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} else { |
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os.Remove(exportFile) |
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glog.Infoln("Import finished") |
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} |
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} |
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func dump(ctx *cli.Context) { |
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chain, _, stateDB, _ := utils.MakeChain(ctx) |
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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.GetBlock(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 := state.New(block.Root(), stateDB) |
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fmt.Printf("%s\n", state.Dump()) |
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} |
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} |
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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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func closeAll(dbs ...common.Database) { |
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for _, db := range dbs { |
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db.Close() |
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} |
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} |
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