func()

in cli/flag/map_string_string.go [65:102]

• 32 lines of code
• 9 McCabe index (conditional complexity)

func (m *MapStringString) Set(value string) error {
	if m.Map == nil {
		return fmt.Errorf("no target (nil pointer to map[string]string)")
	}
	if !m.initialized || *m.Map == nil {
		// clear default values, or allocate if no existing map
		*m.Map = make(map[string]string)
		m.initialized = true
	}

	// account for comma-separated key-value pairs in a single invocation
	if !m.NoSplit {
		for _, s := range strings.Split(value, ",") {
			if len(s) == 0 {
				continue
			}
			arr := strings.SplitN(s, "=", 2)
			if len(arr) != 2 {
				return fmt.Errorf("malformed pair, expect string=string")
			}
			k := strings.TrimSpace(arr[0])
			v := strings.TrimSpace(arr[1])
			(*m.Map)[k] = v
		}
		return nil
	}

	// account for only one key-value pair in a single invocation
	arr := strings.SplitN(value, "=", 2)
	if len(arr) != 2 {
		return fmt.Errorf("malformed pair, expect string=string")
	}
	k := strings.TrimSpace(arr[0])
	v := strings.TrimSpace(arr[1])
	(*m.Map)[k] = v
	return nil

}