func()

in validator.go [44:65]

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

func (um *UserMap) LoadAuthenticatedEmailsFile() {
	r, err := os.Open(um.usersFile)
	if err != nil {
		log.Fatalf("failed opening authenticated-emails-file=%q, %s", um.usersFile, err)
	}
	defer r.Close()
	csvReader := csv.NewReader(r)
	csvReader.Comma = ','
	csvReader.Comment = '#'
	csvReader.TrimLeadingSpace = true
	records, err := csvReader.ReadAll()
	if err != nil {
		log.Printf("error reading authenticated-emails-file=%q, %s", um.usersFile, err)
		return
	}
	updated := make(map[string]bool)
	for _, r := range records {
		address := strings.ToLower(strings.TrimSpace(r[0]))
		updated[address] = true
	}
	atomic.StorePointer(&um.m, unsafe.Pointer(&updated))
}