github.com/Finschia/ostracon@v1.1.5/cmd/ostracon/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/Finschia/ostracon/config"
    12  	"github.com/Finschia/ostracon/libs/cli"
    13  	"github.com/Finschia/ostracon/libs/log"
    14  )
    15  
    16  var (
    17  	config = cfg.DefaultConfig()
    18  	logger = log.NewOCLogger(log.NewSyncWriter(os.Stdout))
    19  )
    20  
    21  func init() {
    22  	registerFlagsRootCmd(RootCmd)
    23  }
    24  
    25  func registerFlagsRootCmd(cmd *cobra.Command) {
    26  	cmd.PersistentFlags().String("log_level", config.LogLevel, "log level")
    27  }
    28  
    29  // ParseConfig retrieves the default environment configuration,
    30  // sets up the Ostracon root and ensures that the root exists
    31  func ParseConfig(cmd *cobra.Command) (*cfg.Config, error) {
    32  	conf := cfg.DefaultConfig()
    33  	err := viper.Unmarshal(conf)
    34  	if err != nil {
    35  		return nil, err
    36  	}
    37  
    38  	var home string
    39  	if os.Getenv("OCHOME") != "" {
    40  		home = os.Getenv("OCHOME")
    41  	} else {
    42  		home, err = cmd.Flags().GetString(cli.HomeFlag)
    43  		if err != nil {
    44  			return nil, err
    45  		}
    46  	}
    47  
    48  	conf.RootDir = home
    49  
    50  	conf.SetRoot(conf.RootDir)
    51  	cfg.EnsureRoot(conf.RootDir)
    52  	if err := conf.ValidateBasic(); err != nil {
    53  		return nil, fmt.Errorf("error in config file: %v", err)
    54  	}
    55  	return conf, nil
    56  }
    57  
    58  // RootCmd is the root command for Ostracon core.
    59  var RootCmd = &cobra.Command{
    60  	Use:   "ostracon",
    61  	Short: "BFT state machine replication for applications in any programming languages",
    62  	PersistentPreRunE: func(cmd *cobra.Command, args []string) (err error) {
    63  		if cmd.Name() == VersionCmd.Name() {
    64  			return nil
    65  		}
    66  
    67  		config, err = ParseConfig(cmd)
    68  		if err != nil {
    69  			return err
    70  		}
    71  
    72  		if config.LogFormat == cfg.LogFormatJSON {
    73  			logger = log.NewOCJSONLogger(log.NewSyncWriter(os.Stdout))
    74  		}
    75  
    76  		logger, err = log.ParseLogLevel(config.LogLevel, logger, cfg.DefaultLogLevel)
    77  		if err != nil {
    78  			return err
    79  		}
    80  
    81  		if viper.GetBool(cli.TraceFlag) {
    82  			logger = log.NewTracingLogger(logger)
    83  		}
    84  
    85  		logger = logger.With("module", "main")
    86  		return nil
    87  	},
    88  }
    89  
    90  // deprecateSnakeCase is a util function for 0.34.1. Should be removed in 0.35
    91  func deprecateSnakeCase(cmd *cobra.Command, args []string) {
    92  	if strings.Contains(cmd.CalledAs(), "_") {
    93  		fmt.Println("Deprecated: snake_case commands will be replaced by hyphen-case commands in the next major release")
    94  	}
    95  }