github.com/aeternity/aepp-sdk-go/v4@v4.0.1/cmd/root.go (about) 1 // Copyright © 2018 NAME HERE <EMAIL ADDRESS> 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package cmd 16 17 import ( 18 "fmt" 19 "os" 20 21 "github.com/aeternity/aepp-sdk-go/aeternity" 22 "github.com/spf13/cobra" 23 "github.com/spf13/viper" 24 ) 25 26 // RootCmd represents the base command when called without any subcommands 27 var RootCmd = &cobra.Command{ 28 Use: "aecli", 29 Short: "The command line client for the Aeternity blockchain", 30 Long: ``, 31 // Uncomment the following line if your bare application 32 // has an action associated with it: 33 // Run: func(cmd *cobra.Command, args []string) { }, 34 } 35 36 var debug bool 37 38 // Execute adds all child commands to the root command sets flags appropriately. 39 // This is called by main.main(). It only needs to happen once to the rootCmd. 40 func Execute(v string) { 41 RootCmd.Version = v 42 if err := RootCmd.Execute(); err != nil { 43 fmt.Println(err) 44 os.Exit(-1) 45 } 46 } 47 48 // NewAeNode is just a helper function that gives you a Node so that you don't 49 // have to maintain a Node global variable (which needs the config vars to be 50 // read immediately, with this helper function you can defer the reading of the 51 // variables until the subcommand's execution) Defined as a var so unittests can 52 // mock this function out. 53 var NewAeNode = func() *aeternity.Node { 54 return aeternity.NewNode(aeternity.Config.Node.URL, debug) 55 } 56 57 // NewCompiler is just a helper function that gives you a Compiler so that you don't 58 // have to maintain a Compiler global variable (which needs the config vars to be 59 // read immediately, with this helper function you can defer the reading of the 60 // variables until the subcommand's execution) Defined as a var so unittests can 61 // mock this function out. 62 var NewCompiler = func() *aeternity.Compiler { 63 return aeternity.NewCompiler(compilerURL, debug) 64 } 65 66 func init() { 67 // cobra.OnInitialize(initConfig) 68 viper.AutomaticEnv() // read in environment variables that match 69 viper.SetEnvPrefix("AETERNITY") 70 viper.SetDefault("external-api", aeternity.Config.Node.URL) 71 viper.SetDefault("network-id", aeternity.Config.Node.NetworkID) 72 73 // Here you will define your flags and configuration settings. 74 // Cobra supports Persistent Flags, which, if defined here, 75 // will be global for your application. 76 RootCmd.PersistentFlags().StringVarP(&aeternity.Config.Node.URL, "external-api", "u", aeternity.Config.Node.URL, "node external API endpoint") 77 RootCmd.PersistentFlags().StringVarP(&aeternity.Config.Node.NetworkID, "network-id", "n", aeternity.Config.Node.NetworkID, "network ID for custom private net") 78 RootCmd.PersistentFlags().BoolVar(&debug, "debug", false, "enable debug") 79 RootCmd.PersistentFlags().BoolVar(&aeternity.Config.Tuning.OutputFormatJSON, "json", false, "print output in json format") 80 }