github.com/bcnmy/go-ethereum@v1.10.27/cmd/geth/misccmd.go (about) 1 // Copyright 2016 The go-ethereum Authors 2 // This file is part of go-ethereum. 3 // 4 // go-ethereum is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // go-ethereum is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 // 14 // You should have received a copy of the GNU General Public License 15 // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>. 16 17 package main 18 19 import ( 20 "fmt" 21 "os" 22 "runtime" 23 "strconv" 24 "strings" 25 26 "github.com/ethereum/go-ethereum/cmd/utils" 27 "github.com/ethereum/go-ethereum/consensus/ethash" 28 "github.com/ethereum/go-ethereum/params" 29 "github.com/urfave/cli/v2" 30 ) 31 32 var ( 33 VersionCheckUrlFlag = &cli.StringFlag{ 34 Name: "check.url", 35 Usage: "URL to use when checking vulnerabilities", 36 Value: "https://geth.ethereum.org/docs/vulnerabilities/vulnerabilities.json", 37 } 38 VersionCheckVersionFlag = &cli.StringFlag{ 39 Name: "check.version", 40 Usage: "Version to check", 41 Value: fmt.Sprintf("Geth/v%v/%v-%v/%v", 42 params.VersionWithCommit(gitCommit, gitDate), 43 runtime.GOOS, runtime.GOARCH, runtime.Version()), 44 } 45 makecacheCommand = &cli.Command{ 46 Action: makecache, 47 Name: "makecache", 48 Usage: "Generate ethash verification cache (for testing)", 49 ArgsUsage: "<blockNum> <outputDir>", 50 Description: ` 51 The makecache command generates an ethash cache in <outputDir>. 52 53 This command exists to support the system testing project. 54 Regular users do not need to execute it. 55 `, 56 } 57 makedagCommand = &cli.Command{ 58 Action: makedag, 59 Name: "makedag", 60 Usage: "Generate ethash mining DAG (for testing)", 61 ArgsUsage: "<blockNum> <outputDir>", 62 Description: ` 63 The makedag command generates an ethash DAG in <outputDir>. 64 65 This command exists to support the system testing project. 66 Regular users do not need to execute it. 67 `, 68 } 69 versionCommand = &cli.Command{ 70 Action: version, 71 Name: "version", 72 Usage: "Print version numbers", 73 ArgsUsage: " ", 74 Description: ` 75 The output of this command is supposed to be machine-readable. 76 `, 77 } 78 versionCheckCommand = &cli.Command{ 79 Action: versionCheck, 80 Flags: []cli.Flag{ 81 VersionCheckUrlFlag, 82 VersionCheckVersionFlag, 83 }, 84 Name: "version-check", 85 Usage: "Checks (online) for known Geth security vulnerabilities", 86 ArgsUsage: "<versionstring (optional)>", 87 Description: ` 88 The version-check command fetches vulnerability-information from https://geth.ethereum.org/docs/vulnerabilities/vulnerabilities.json, 89 and displays information about any security vulnerabilities that affect the currently executing version. 90 `, 91 } 92 licenseCommand = &cli.Command{ 93 Action: license, 94 Name: "license", 95 Usage: "Display license information", 96 ArgsUsage: " ", 97 } 98 ) 99 100 // makecache generates an ethash verification cache into the provided folder. 101 func makecache(ctx *cli.Context) error { 102 args := ctx.Args().Slice() 103 if len(args) != 2 { 104 utils.Fatalf(`Usage: geth makecache <block number> <outputdir>`) 105 } 106 block, err := strconv.ParseUint(args[0], 0, 64) 107 if err != nil { 108 utils.Fatalf("Invalid block number: %v", err) 109 } 110 ethash.MakeCache(block, args[1]) 111 112 return nil 113 } 114 115 // makedag generates an ethash mining DAG into the provided folder. 116 func makedag(ctx *cli.Context) error { 117 args := ctx.Args().Slice() 118 if len(args) != 2 { 119 utils.Fatalf(`Usage: geth makedag <block number> <outputdir>`) 120 } 121 block, err := strconv.ParseUint(args[0], 0, 64) 122 if err != nil { 123 utils.Fatalf("Invalid block number: %v", err) 124 } 125 ethash.MakeDataset(block, args[1]) 126 127 return nil 128 } 129 130 func version(ctx *cli.Context) error { 131 fmt.Println(strings.Title(clientIdentifier)) 132 fmt.Println("Version:", params.VersionWithMeta) 133 if gitCommit != "" { 134 fmt.Println("Git Commit:", gitCommit) 135 } 136 if gitDate != "" { 137 fmt.Println("Git Commit Date:", gitDate) 138 } 139 fmt.Println("Architecture:", runtime.GOARCH) 140 fmt.Println("Go Version:", runtime.Version()) 141 fmt.Println("Operating System:", runtime.GOOS) 142 fmt.Printf("GOPATH=%s\n", os.Getenv("GOPATH")) 143 fmt.Printf("GOROOT=%s\n", runtime.GOROOT()) 144 return nil 145 } 146 147 func license(_ *cli.Context) error { 148 fmt.Println(`Geth is free software: you can redistribute it and/or modify 149 it under the terms of the GNU General Public License as published by 150 the Free Software Foundation, either version 3 of the License, or 151 (at your option) any later version. 152 153 Geth is distributed in the hope that it will be useful, 154 but WITHOUT ANY WARRANTY; without even the implied warranty of 155 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 156 GNU General Public License for more details. 157 158 You should have received a copy of the GNU General Public License 159 along with geth. If not, see <http://www.gnu.org/licenses/>.`) 160 return nil 161 }