cmd

package

v0.3.4 Latest Latest Go to latest Published: Mar 31, 2018 License: MIT Imports: 31 Imported by: 0

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var ErrShowedHelp = errors.New("already showed help")

ErrShowedHelp is used in parsing argument function of subcommand when the subcommand showed help. Then caller can exit successfully and silently.

func Run(subCmd string, args []string) int

Run is invoked by main(), each argument means 'volt {subcmd} {args}'.

type Cmd interface {
	ProhibitRootExecution(args []string) bool
	Run(args []string) int
	FlagSet() *flag.FlagSet
}

Cmd represents volt's subcommand interface. All subcommands must implement this.