func()

in gce-containers-startup/command/runner.go [29:43]

• 15 lines of code
• 4 McCabe index (conditional complexity)

func (r Runner) Run(commandAndArgs ...string) (string, error) {
	if len(commandAndArgs) == 0 {
		return "", fmt.Errorf("No command provided.")
	}
	output, err := exec.Command(commandAndArgs[0], commandAndArgs[1:]...).CombinedOutput()
	outputString := string(output)
	if err != nil {
		errorString := fmt.Sprintf("%s", err)
		if outputString != "" {
			errorString = fmt.Sprintf("%s, details: %s", errorString, outputString)
		}
		return "", fmt.Errorf("Failed to execute command %s: %s", commandAndArgs, errorString)
	}
	return outputString, nil
}