how to have each cobra command parse its own flags? getting initialization loop (expected, but how to avoid?)












0















I'm following the guide on https://github.com/spf13/cobra#flags, but I'm confused by some of the content there.



I have a few services (rest api, email service, events) and I'm trying to do something like this:



go run *.go rest -env DEV -p 3000



go run *.go events -env DEV -p 3001



I'm following the github page, so I have defined my rootCmd and restCmd as such:



var rootCmd = &cobra.Command{
Use: "myappname",
}

var restCmd = &cobra.Command{
Use: "rest",
Short: "REST API",
Long: "REST API",
Run: runRest,
}


And in the runRest method, should I be doing something like



var env string
restCmd.Flags().StringVarP(&env, "env", "env", "", "environment")


Please let me know.



Thanks










share|improve this question



























    0















    I'm following the guide on https://github.com/spf13/cobra#flags, but I'm confused by some of the content there.



    I have a few services (rest api, email service, events) and I'm trying to do something like this:



    go run *.go rest -env DEV -p 3000



    go run *.go events -env DEV -p 3001



    I'm following the github page, so I have defined my rootCmd and restCmd as such:



    var rootCmd = &cobra.Command{
    Use: "myappname",
    }

    var restCmd = &cobra.Command{
    Use: "rest",
    Short: "REST API",
    Long: "REST API",
    Run: runRest,
    }


    And in the runRest method, should I be doing something like



    var env string
    restCmd.Flags().StringVarP(&env, "env", "env", "", "environment")


    Please let me know.



    Thanks










    share|improve this question

























      0












      0








      0








      I'm following the guide on https://github.com/spf13/cobra#flags, but I'm confused by some of the content there.



      I have a few services (rest api, email service, events) and I'm trying to do something like this:



      go run *.go rest -env DEV -p 3000



      go run *.go events -env DEV -p 3001



      I'm following the github page, so I have defined my rootCmd and restCmd as such:



      var rootCmd = &cobra.Command{
      Use: "myappname",
      }

      var restCmd = &cobra.Command{
      Use: "rest",
      Short: "REST API",
      Long: "REST API",
      Run: runRest,
      }


      And in the runRest method, should I be doing something like



      var env string
      restCmd.Flags().StringVarP(&env, "env", "env", "", "environment")


      Please let me know.



      Thanks










      share|improve this question














      I'm following the guide on https://github.com/spf13/cobra#flags, but I'm confused by some of the content there.



      I have a few services (rest api, email service, events) and I'm trying to do something like this:



      go run *.go rest -env DEV -p 3000



      go run *.go events -env DEV -p 3001



      I'm following the github page, so I have defined my rootCmd and restCmd as such:



      var rootCmd = &cobra.Command{
      Use: "myappname",
      }

      var restCmd = &cobra.Command{
      Use: "rest",
      Short: "REST API",
      Long: "REST API",
      Run: runRest,
      }


      And in the runRest method, should I be doing something like



      var env string
      restCmd.Flags().StringVarP(&env, "env", "env", "", "environment")


      Please let me know.



      Thanks







      go go-cobra






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 25 '18 at 13:58









      a persona person

      34049




      34049
























          1 Answer
          1






          active

          oldest

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          1














          Each sub command can have their own flags. You can do this as following:



          package main

          import (
          "fmt"
          "log"

          "github.com/spf13/cobra"
          )

          var rootCmd = &cobra.Command{
          Use: "app",
          }

          func NewCmdRest() *cobra.Command {
          var env string
          var restCmd = &cobra.Command{
          Use: "rest",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("rest:", env)
          },
          }

          restCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return restCmd
          }

          func NewCmdEvent() *cobra.Command {
          var env string
          var eventCmd = &cobra.Command{
          Use: "event",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("event:", env)
          },
          }

          eventCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return eventCmd
          }

          func init() {
          rootCmd.AddCommand(NewCmdRest())
          rootCmd.AddCommand(NewCmdEvent())
          }

          func main() {
          if err := rootCmd.Execute(); err != nil {
          log.Fatal(err)
          }
          }





          share|improve this answer
























          • Thanks! Unfortunately when I try to do something like this - go run *.go rest -env DEV I get the following for the value of env: Env: nv . What am I doing wrong? thank you

            – a person
            Nov 25 '18 at 23:19











          • never mind - i have gto use it as --env DEV

            – a person
            Nov 25 '18 at 23:22











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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          Each sub command can have their own flags. You can do this as following:



          package main

          import (
          "fmt"
          "log"

          "github.com/spf13/cobra"
          )

          var rootCmd = &cobra.Command{
          Use: "app",
          }

          func NewCmdRest() *cobra.Command {
          var env string
          var restCmd = &cobra.Command{
          Use: "rest",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("rest:", env)
          },
          }

          restCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return restCmd
          }

          func NewCmdEvent() *cobra.Command {
          var env string
          var eventCmd = &cobra.Command{
          Use: "event",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("event:", env)
          },
          }

          eventCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return eventCmd
          }

          func init() {
          rootCmd.AddCommand(NewCmdRest())
          rootCmd.AddCommand(NewCmdEvent())
          }

          func main() {
          if err := rootCmd.Execute(); err != nil {
          log.Fatal(err)
          }
          }





          share|improve this answer
























          • Thanks! Unfortunately when I try to do something like this - go run *.go rest -env DEV I get the following for the value of env: Env: nv . What am I doing wrong? thank you

            – a person
            Nov 25 '18 at 23:19











          • never mind - i have gto use it as --env DEV

            – a person
            Nov 25 '18 at 23:22
















          1














          Each sub command can have their own flags. You can do this as following:



          package main

          import (
          "fmt"
          "log"

          "github.com/spf13/cobra"
          )

          var rootCmd = &cobra.Command{
          Use: "app",
          }

          func NewCmdRest() *cobra.Command {
          var env string
          var restCmd = &cobra.Command{
          Use: "rest",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("rest:", env)
          },
          }

          restCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return restCmd
          }

          func NewCmdEvent() *cobra.Command {
          var env string
          var eventCmd = &cobra.Command{
          Use: "event",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("event:", env)
          },
          }

          eventCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return eventCmd
          }

          func init() {
          rootCmd.AddCommand(NewCmdRest())
          rootCmd.AddCommand(NewCmdEvent())
          }

          func main() {
          if err := rootCmd.Execute(); err != nil {
          log.Fatal(err)
          }
          }





          share|improve this answer
























          • Thanks! Unfortunately when I try to do something like this - go run *.go rest -env DEV I get the following for the value of env: Env: nv . What am I doing wrong? thank you

            – a person
            Nov 25 '18 at 23:19











          • never mind - i have gto use it as --env DEV

            – a person
            Nov 25 '18 at 23:22














          1












          1








          1







          Each sub command can have their own flags. You can do this as following:



          package main

          import (
          "fmt"
          "log"

          "github.com/spf13/cobra"
          )

          var rootCmd = &cobra.Command{
          Use: "app",
          }

          func NewCmdRest() *cobra.Command {
          var env string
          var restCmd = &cobra.Command{
          Use: "rest",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("rest:", env)
          },
          }

          restCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return restCmd
          }

          func NewCmdEvent() *cobra.Command {
          var env string
          var eventCmd = &cobra.Command{
          Use: "event",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("event:", env)
          },
          }

          eventCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return eventCmd
          }

          func init() {
          rootCmd.AddCommand(NewCmdRest())
          rootCmd.AddCommand(NewCmdEvent())
          }

          func main() {
          if err := rootCmd.Execute(); err != nil {
          log.Fatal(err)
          }
          }





          share|improve this answer













          Each sub command can have their own flags. You can do this as following:



          package main

          import (
          "fmt"
          "log"

          "github.com/spf13/cobra"
          )

          var rootCmd = &cobra.Command{
          Use: "app",
          }

          func NewCmdRest() *cobra.Command {
          var env string
          var restCmd = &cobra.Command{
          Use: "rest",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("rest:", env)
          },
          }

          restCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return restCmd
          }

          func NewCmdEvent() *cobra.Command {
          var env string
          var eventCmd = &cobra.Command{
          Use: "event",
          Run: func(cmd *cobra.Command, args string) {
          fmt.Println("event:", env)
          },
          }

          eventCmd.Flags().StringVarP(&env, "env", "e", "", "environment")
          return eventCmd
          }

          func init() {
          rootCmd.AddCommand(NewCmdRest())
          rootCmd.AddCommand(NewCmdEvent())
          }

          func main() {
          if err := rootCmd.Execute(); err != nil {
          log.Fatal(err)
          }
          }






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 25 '18 at 15:59









          nightfury1204nightfury1204

          1,759410




          1,759410













          • Thanks! Unfortunately when I try to do something like this - go run *.go rest -env DEV I get the following for the value of env: Env: nv . What am I doing wrong? thank you

            – a person
            Nov 25 '18 at 23:19











          • never mind - i have gto use it as --env DEV

            – a person
            Nov 25 '18 at 23:22



















          • Thanks! Unfortunately when I try to do something like this - go run *.go rest -env DEV I get the following for the value of env: Env: nv . What am I doing wrong? thank you

            – a person
            Nov 25 '18 at 23:19











          • never mind - i have gto use it as --env DEV

            – a person
            Nov 25 '18 at 23:22

















          Thanks! Unfortunately when I try to do something like this - go run *.go rest -env DEV I get the following for the value of env: Env: nv . What am I doing wrong? thank you

          – a person
          Nov 25 '18 at 23:19





          Thanks! Unfortunately when I try to do something like this - go run *.go rest -env DEV I get the following for the value of env: Env: nv . What am I doing wrong? thank you

          – a person
          Nov 25 '18 at 23:19













          never mind - i have gto use it as --env DEV

          – a person
          Nov 25 '18 at 23:22





          never mind - i have gto use it as --env DEV

          – a person
          Nov 25 '18 at 23:22




















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