github.com/516108736/tendermint@v0.36.0/cmd/tendermint/commands/root.go (about) 1 package commands 2 3 import ( 4 "fmt" 5 "os" 6 "strings" 7 8 "github.com/spf13/cobra" 9 "github.com/spf13/viper" 10 11 cfg "github.com/tendermint/tendermint/config" 12 "github.com/tendermint/tendermint/libs/cli" 13 tmflags "github.com/tendermint/tendermint/libs/cli/flags" 14 "github.com/tendermint/tendermint/libs/log" 15 ) 16 17 var ( 18 config = cfg.DefaultConfig() 19 logger = log.NewTMLogger(log.NewSyncWriter(os.Stdout)) 20 ) 21 22 func init() { 23 registerFlagsRootCmd(RootCmd) 24 } 25 26 func registerFlagsRootCmd(cmd *cobra.Command) { 27 cmd.PersistentFlags().String("log_level", config.LogLevel, "log level") 28 } 29 30 // ParseConfig retrieves the default environment configuration, 31 // sets up the Tendermint root and ensures that the root exists 32 func ParseConfig() (*cfg.Config, error) { 33 conf := cfg.DefaultConfig() 34 err := viper.Unmarshal(conf) 35 if err != nil { 36 return nil, err 37 } 38 conf.SetRoot(conf.RootDir) 39 cfg.EnsureRoot(conf.RootDir) 40 if err := conf.ValidateBasic(); err != nil { 41 return nil, fmt.Errorf("error in config file: %v", err) 42 } 43 return conf, nil 44 } 45 46 // RootCmd is the root command for Tendermint core. 47 var RootCmd = &cobra.Command{ 48 Use: "tendermint", 49 Short: "BFT state machine replication for applications in any programming languages", 50 PersistentPreRunE: func(cmd *cobra.Command, args []string) (err error) { 51 if cmd.Name() == VersionCmd.Name() { 52 return nil 53 } 54 55 config, err = ParseConfig() 56 if err != nil { 57 return err 58 } 59 60 if config.LogFormat == cfg.LogFormatJSON { 61 logger = log.NewTMJSONLogger(log.NewSyncWriter(os.Stdout)) 62 } 63 64 logger, err = tmflags.ParseLogLevel(config.LogLevel, logger, cfg.DefaultLogLevel) 65 if err != nil { 66 return err 67 } 68 69 if viper.GetBool(cli.TraceFlag) { 70 logger = log.NewTracingLogger(logger) 71 } 72 73 logger = logger.With("module", "main") 74 return nil 75 }, 76 } 77 78 // deprecateSnakeCase is a util function for 0.34.1. Should be removed in 0.35 79 func deprecateSnakeCase(cmd *cobra.Command, args []string) { 80 if strings.Contains(cmd.CalledAs(), "_") { 81 fmt.Println("Deprecated: snake_case commands will be replaced by hyphen-case commands in the next major release") 82 } 83 }