Function effectiveTimezoneLocationName

cmd/root.go:274–319

()

}

func effectiveTimezoneLocationName() lib.TimezoneLocationName {

	if runtime.GOOS == "windows" {
		out, err := exec.Command("powershell", "-NoProfile", "-c", "(Get-TimeZone | Select-Object -First 1 -Property Id).Id | Write-Output").CombinedOutput()
		if err == nil {
			return lib.TimezoneLocationName{strings.TrimSpace(fmt.Sprintf("%s", out))}
		}
	}

	// First, check if a TZ or CRON_TZ environemnt variable is set -- Diff var used by diff distros
	if locale, isSetFlag := os.LookupEnv("TZ"); isSetFlag {
		return lib.TimezoneLocationName{locale}
	}

	if locale, isSetFlag := os.LookupEnv("CRON_TZ"); isSetFlag {
		return lib.TimezoneLocationName{locale}
	}

	// Attempt to parse timedatectl (should work on FreeBSD, many linux distros)
	if output, err := exec.Command("timedatectl").Output(); err == nil {
		outputString := strings.Replace(string(output), "Time zone", "Timezone", -1)
		r := regexp.MustCompile(`(?m:Timezone:\s+(\S+).+$)`)
		if ret := r.FindStringSubmatch(outputString); ret != nil && len(ret) > 1 {
			return lib.TimezoneLocationName{ret[1]}
		}
	}

	// If /etc/localtime is a symlink, check what it is linking to
	if localtimeFile, err := os.Lstat("/etc/localtime"); err == nil && localtimeFile.Mode()&os.ModeSymlink == os.ModeSymlink {
		if symlink, _ := os.Readlink("/etc/localtime"); len(symlink) > 0 {
			if strings.Contains(symlink, "UTC") {
				return lib.TimezoneLocationName{"UTC"}
			}

			symlinkParts := strings.Split(symlink, "/")
			return lib.TimezoneLocationName{strings.Join(symlinkParts[len(symlinkParts)-2:], "/")}
		}
	}

	// If we happen to have an /etc/timezone, no guarantee it's used, but read that
	if locale, err := ioutil.ReadFile("/etc/timezone"); err == nil {
		return lib.TimezoneLocationName{string(locale)}
	}

	return lib.TimezoneLocationName{""}
}

func defaultConfigFileDirectory() string {
	if runtime.GOOS == "windows" {