github.com/linapex/ethereum-dpos-chinese@v0.0.0-20190316121959-b78b3a4a1ece/cmd/puppeth/wizard_intro.go (about) 1 2 //<developer> 3 // <name>linapex 曹一峰</name> 4 // <email>linapex@163.com</email> 5 // <wx>superexc</wx> 6 // <qqgroup>128148617</qqgroup> 7 // <url>https://jsq.ink</url> 8 // <role>pku engineer</role> 9 // <date>2019-03-16 12:09:31</date> 10 //</624342604443553792> 11 12 13 package main 14 15 import ( 16 "bufio" 17 "encoding/json" 18 "fmt" 19 "io/ioutil" 20 "os" 21 "path/filepath" 22 "strings" 23 "sync" 24 25 "github.com/ethereum/go-ethereum/log" 26 ) 27 28 // 29 func makeWizard(network string) *wizard { 30 return &wizard{ 31 network: network, 32 conf: config{ 33 Servers: make(map[string][]byte), 34 }, 35 servers: make(map[string]*sshClient), 36 services: make(map[string][]string), 37 in: bufio.NewReader(os.Stdin), 38 } 39 } 40 41 // 42 // 43 func (w *wizard) run() { 44 fmt.Println("+-----------------------------------------------------------+") 45 fmt.Println("| Welcome to puppeth, your Ethereum private network manager |") 46 fmt.Println("| |") 47 fmt.Println("| This tool lets you create a new Ethereum network down to |") 48 fmt.Println("| the genesis block, bootnodes, miners and ethstats servers |") 49 fmt.Println("| without the hassle that it would normally entail. |") 50 fmt.Println("| |") 51 fmt.Println("| Puppeth uses SSH to dial in to remote servers, and builds |") 52 fmt.Println("| its network components out of Docker containers using the |") 53 fmt.Println("| docker-compose toolset. |") 54 fmt.Println("+-----------------------------------------------------------+") 55 fmt.Println() 56 57 // 58 // 59 if w.network == "" { 60 fmt.Println("Please specify a network name to administer (no spaces or hyphens, please)") 61 for { 62 w.network = w.readString() 63 if !strings.Contains(w.network, " ") && !strings.Contains(w.network, "-") { 64 fmt.Printf("\nSweet, you can set this via --network=%s next time!\n\n", w.network) 65 break 66 } 67 log.Error("I also like to live dangerously, still no spaces or hyphens") 68 } 69 } 70 log.Info("Administering Ethereum network", "name", w.network) 71 72 // 73 w.conf.path = filepath.Join(os.Getenv("HOME"), ".puppeth", w.network) 74 75 blob, err := ioutil.ReadFile(w.conf.path) 76 if err != nil { 77 log.Warn("No previous configurations found", "path", w.conf.path) 78 } else if err := json.Unmarshal(blob, &w.conf); err != nil { 79 log.Crit("Previous configuration corrupted", "path", w.conf.path, "err", err) 80 } else { 81 // 82 var pend sync.WaitGroup 83 for server, pubkey := range w.conf.Servers { 84 pend.Add(1) 85 86 go func(server string, pubkey []byte) { 87 defer pend.Done() 88 89 log.Info("Dialing previously configured server", "server", server) 90 client, err := dial(server, pubkey) 91 if err != nil { 92 log.Error("Previous server unreachable", "server", server, "err", err) 93 } 94 w.lock.Lock() 95 w.servers[server] = client 96 w.lock.Unlock() 97 }(server, pubkey) 98 } 99 pend.Wait() 100 w.networkStats() 101 } 102 // 103 for { 104 fmt.Println() 105 fmt.Println("What would you like to do? (default = stats)") 106 fmt.Println(" 1. Show network stats") 107 if w.conf.Genesis == nil { 108 fmt.Println(" 2. Configure new genesis") 109 } else { 110 fmt.Println(" 2. Manage existing genesis") 111 } 112 if len(w.servers) == 0 { 113 fmt.Println(" 3. Track new remote server") 114 } else { 115 fmt.Println(" 3. Manage tracked machines") 116 } 117 if len(w.services) == 0 { 118 fmt.Println(" 4. Deploy network components") 119 } else { 120 fmt.Println(" 4. Manage network components") 121 } 122 123 choice := w.read() 124 switch { 125 case choice == "" || choice == "1": 126 w.networkStats() 127 128 case choice == "2": 129 if w.conf.Genesis == nil { 130 w.makeGenesis() 131 } else { 132 w.manageGenesis() 133 } 134 case choice == "3": 135 if len(w.servers) == 0 { 136 if w.makeServer() != "" { 137 w.networkStats() 138 } 139 } else { 140 w.manageServers() 141 } 142 case choice == "4": 143 if len(w.services) == 0 { 144 w.deployComponent() 145 } else { 146 w.manageComponents() 147 } 148 149 default: 150 log.Error("That's not something I can do") 151 } 152 } 153 } 154