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root.go
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root.go
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package cmd
import (
"os"
"strings"
"time"
log "github.com/codeamp/logger"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var cfgFile string
// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
Use: "circuit",
Short: "CodeAmp Circuit",
}
// Execute adds all child commands to the root command sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the RootCmd.
func Execute() {
if err := RootCmd.Execute(); err != nil {
log.Error(err)
os.Exit(1)
}
}
func init() {
cobra.OnInitialize(initConfig)
RootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "", "config file (default is ./configs/.circuit.yml)")
viper.BindPFlags(RootCmd.PersistentFlags())
}
// initConfig reads in config file and ENV variables if set.
func initConfig() {
viper.SetConfigType("yaml")
viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
viper.SetEnvPrefix("CODEAMP")
if cfgFile != "" {
// Use config file from the flag.
viper.SetConfigFile(cfgFile)
} else {
viper.AddConfigPath("./configs")
viper.SetConfigName("circuit")
}
viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
log.InfoWithFields("config loaded", log.Fields{
"config": viper.ConfigFileUsed(),
})
}
if _logLevel := viper.GetString("log_level"); _logLevel != "" {
logLevel, err := log.ParseLevel(_logLevel)
if err != nil {
log.Fatal(err)
}
log.SetLogLevel(logLevel)
}
if logFormat := viper.GetString("log_format"); logFormat != "" {
switch strings.ToLower(logFormat) {
case "standard":
break
case "json":
fallthrough
default:
log.SetLogFormatter(&logrus.JSONFormatter{TimestampFormat: time.RFC3339Nano, FieldMap: logrus.FieldMap{
logrus.FieldKeyTime: "@timestamp",
logrus.FieldKeyLevel: "level",
logrus.FieldKeyMsg: "msg",
}})
}
}
}