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root.go
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root.go
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package cmd
import (
"fmt"
"github.com/mitchellh/go-homedir"
"github.com/paulmatencio/s3c/gLog"
"github.com/paulmatencio/s3c/utils"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"log"
"os"
"path/filepath"
)
// rootCmd represents the base command when called without any subcommands
var (
cfgFile string
verbose, Debug,autoCompletion bool
loglevel,profiling int
missingBucket = "Missing bucket - please provide the bucket name"
missingKey = "Missing key - please provide the key of the object"
missingEmail = "Missing uswr email - please provide the email of the user"
missingInputFile ="Missing date input file - please provide the input file path (absolute or relative to current directory"
illegalPermission = "Illegal permission value. It must be one of: FULL_CONTROL, WRITE, WRITE_ACP, READ, or READ_ACP"
invalidUserType = "Invalid user type. It must be CanonicalUser"
RootCmd = &cobra.Command {
Use: "acl",
Short: "Scality commands for managing ACL of buckets and objects",
Long: ``,
TraverseChildren: true,
})
// Execute adds all child commands to the root command and 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 {
fmt.Println(err)
os.Exit(1)
}
}
func init() {
// persistent flags
RootCmd.PersistentFlags().BoolVarP(&verbose, "verbose","v", false, "verbose output")
RootCmd.PersistentFlags().IntVarP(&loglevel, "loglevel", "l", 0,"Output level of logs (1: error, 2: Warning, 3: Info , 4 Trace, 5 Debug)")
RootCmd.Flags().StringVarP(&cfgFile,"config", "c","", "sc config file; default $HOME/.sc/config.yaml")
RootCmd.PersistentFlags().BoolVarP(&autoCompletion,"autoCompletion", "C",false, "generate bash auto completion")
RootCmd.PersistentFlags().IntVarP(&profiling,"profiling", "P",0, "display memory usage every P seconds")
// bind application flags to viper key for future viper.Get()
// viper also to set default value to any key
viper.BindPFlag("verbose",RootCmd.PersistentFlags().Lookup("verbose"))
viper.BindPFlag("loglevel",RootCmd.PersistentFlags().Lookup("loglevel"))
viper.BindPFlag("autoCompletion",RootCmd.PersistentFlags().Lookup("autoCompletion"))
viper.BindPFlag("profiling",RootCmd.PersistentFlags().Lookup("profiling"))
// read and init the config with viper
cobra.OnInitialize(initConfig)
}
// initConfig reads in config file and ENV variables if set.
func initConfig() {
var configPath string
if cfgFile != "" {
// Use config file from the application flag.
viper.SetConfigFile(cfgFile)
} else {
// Find home directory.
home, err := homedir.Dir()
if err != nil {
log.Fatalln(err)
}
configPath = filepath.Join("/etc/sc") // call multiple times to add many search paths
viper.AddConfigPath(configPath) // another path to look for the config file
configPath = filepath.Join(home,".sc")
viper.AddConfigPath(configPath) // path to look for the config file
viper.AddConfigPath(".") // optionally look for config in the working directory
viper.SetConfigName("config") // name of the config file without the extension
viper.SetConfigType("yaml")
}
viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
log.Printf("Using config file: %s", viper.ConfigFileUsed())
} else {
log.Printf("Error %v reading config file %s",err,viper.ConfigFileUsed())
log.Printf("AWS sdk shared config will be used if present ")
}
logOutput:= utils.GetLogOutput(*viper.GetViper())
loglevel = utils.SetLogLevel(*viper.GetViper(),loglevel)
gLog.InitLog(RootCmd.Name(),loglevel,logOutput)
log.Printf("Logging level: %d Output: %s",loglevel,logOutput)
if autoCompletion {
utils.GenAutoCompletionScript(RootCmd,configPath)
}
}
/*
func getLogOutput() (string) {
return viper.GetString("logging.output" )
}
*/