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root.go
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root.go
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package commands
import (
"os"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var cfgFile string
var RootCmd = &cobra.Command{
Use: "ingest-service",
Short: "Chef Automate Ingest Service",
}
// 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)
// global config
RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.ingest-service.toml)")
}
// initConfig reads in config file and ENV variables if set.
func initConfig() {
if cfgFile != "" { // enable ability to specify where the config file via flag
viper.SetConfigFile(cfgFile)
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err != nil {
log.WithFields(log.Fields{"warning": err}).Info("Given config file not found")
log.WithFields(log.Fields{"path": cfgFile}).Info("Creating config file")
}
} else {
viper.SetConfigName(".ingest-service") // name of config file (without extension)
viper.AddConfigPath("$HOME") // adding home directory as first search path
viper.AddConfigPath(".")
viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
log.WithFields(log.Fields{"file": viper.ConfigFileUsed()}).Info("Using config file")
} else {
log.WithFields(log.Fields{"warning": err}).Info("Config file not found")
viper.SetConfigFile(".ingest-service.toml")
log.Info("Creating a config file .ingest-service.toml in your local directory")
}
}
log.WithFields(log.Fields{"path": viper.ConfigFileUsed()}).Info("Config loaded")
}