utils

func CalcPage ¶

func CalcPage(page int, size int, len int) (int, int, bool)

func CheckVersion ¶

func CheckVersion(ver string, constraint string) (bool, error)

CheckVersion checks ver with constraint string.

CheckVersion("1.0.1", ">= 1.0, < 1.1")

func DownloadFile ¶

func DownloadFile(ctx context.Context, url string, path string) error

DownloadFile download url to path.

func FileExist ¶

func FileExist(path string) bool

FileExist returns whether file in path exist.

func MD5 ¶

func MD5(str string) string

MD5 returns md5 hash of str.

func Max ¶

func Max[T constraints.Ordered](a T, b T) T

func Min ¶

func Min[T constraints.Ordered](a T, b T) T

func MustMarshal ¶

func MustMarshal(v any) string

func RandString ¶

func RandString(n int) string

RandString returns n length random string [a-zA-Z0-9]+