Function ExitOnError

commands/util.go:1188–1237

(err error)

}

func ExitOnError(err error) {
	if err == nil {
		return
	}

	whisk.Debug(whisk.DbgInfo, "err object type: %s\n", reflect.TypeOf(err).String())

	T := wski18n.T
	var exitCode int = 0
	var displayUsage bool = false
	var displayMsg bool = false
	var msgDisplayed bool = true
	var displayPrefix bool = true

	werr, isWskError := err.(*whisk.WskError) // Is the err a WskError?
	if isWskError {
		whisk.Debug(whisk.DbgError, "Got a *whisk.WskError error: %#v\n", werr)
		displayUsage = werr.DisplayUsage
		displayMsg = werr.DisplayMsg
		msgDisplayed = werr.MsgDisplayed
		displayPrefix = werr.DisplayPrefix
		exitCode = werr.ExitCode
	} else {
		whisk.Debug(whisk.DbgError, "Got some other error: %s\n", err)
		fmt.Fprintf(os.Stderr, "%s\n", err)

		displayUsage = false // Cobra already displayed the usage message
		exitCode = 1
	}

	outputStream := colorable.NewColorableStderr()

	// If the err msg should be displayed to the console and it has not already been
	// displayed, display it now.
	if displayMsg && !msgDisplayed && displayPrefix && exitCode != 0 {
		fmt.Fprintf(outputStream, "%s%s\n", color.RedString(T("error: ")), err)
	} else if displayMsg && !msgDisplayed && !displayPrefix && exitCode != 0 {
		fmt.Fprintf(outputStream, "%s\n", err)
	} else if displayMsg && !msgDisplayed && exitCode == 0 {
		fmt.Fprintf(outputStream, "%s\n", err)
	}

	// Displays usage
	if displayUsage {
		fmt.Fprintf(outputStream, T("Run '{{.Name}} --help' for usage.\n",
			map[string]interface{}{"Name": WskCmd.CommandPath()}))
	}

	os.Exit(exitCode)
}