// Run runs single command starting from root cmd with args, optionally initializing context
func Run(cmd *commander.Command, cmdArgs []string, initContext bool) (returnCode int) {
defer func() {
if r := recover(); r != nil {
fatal, ok := r.(*FatalError)
if !ok {
panic(r)
}
fmt.Println("ERROR:", fatal.Message)
returnCode = fatal.ReturnCode
}
}()
returnCode = 0
flags, args, err := cmd.ParseFlags(cmdArgs)
if err != nil {
Fatal(err)
}
if initContext {
err = InitContext(flags)
if err != nil {
Fatal(err)
}
defer ShutdownContext()
}
context.UpdateFlags(flags)
err = cmd.Dispatch(args)
if err != nil {
Fatal(err)
}
return
}