utils

func CallerFile ¶

func CallerFile(deep int) (path string, line int)

CallerFile returns caller file path and line

func CallerFileName ¶

func CallerFileName(deep int) string

CallerFileName returns name of caller file

func CallerFilePath ¶

func CallerFilePath(deep int) string

CallerFilePath returns path to caller file

func ConstantTimeCompareStrings ¶

func ConstantTimeCompareStrings(a, b string) bool

ConstantTimeCompareStrings uses zero alloc converting to bytes

func GeneratePEMCert ¶

func GeneratePEMCert(bits int, organization string, maxAge time.Duration) (cert, key []byte, err error)

GeneratePEMCert self-signed

func GenerateTLSCert ¶

func GenerateTLSCert(bits int, organization string, maxAge time.Duration) (*tls.Certificate, error)

GenerateTLSCert self-signed

func ImageJPGThumbnail ¶

func ImageJPGThumbnail(src io.Reader, filename string, maxWidth, maxHeight uint) ([]byte, error)

ImageJPGThumbnail converter

func ImageJPGThumbnailTo ¶

func ImageJPGThumbnailTo(src io.Reader, dst io.Writer, filename string, maxWidth, maxHeight uint) error

ImageJPGThumbnailTo converter

func ImagePNGThumbnail ¶

func ImagePNGThumbnail(src io.Reader, filename string, maxWidth, maxHeight uint) ([]byte, error)

ImagePNGThumbnail converter

func ImagePNGThumbnailTo ¶

func ImagePNGThumbnailTo(src io.Reader, dst io.Writer, filename string, maxWidth, maxHeight uint) error

ImagePNGThumbnailTo converter

func ImageRead ¶

func ImageRead(filename string, src io.Reader) (image.Image, error)

ImageRead to GO image.Image interface

func NewDiscardLogger ¶

func NewDiscardLogger() *log.Logger

NewDiscardLogger std

func Perm ¶

func Perm(s []string, f func([]string))

Perm calls f with each permutation of s.

func RandBytes ¶

func RandBytes(n int) []byte

RandBytes - fast token generator

func RandBytesTo ¶

func RandBytesTo(buf []byte)

RandBytesTo - fast token generator

func RandInit ¶

func RandInit()

RandInit for init rand seed from time

func RandString ¶

func RandString(n int) string

RandString - fast token generator

func RuntimePkgFileLineByPC ¶

func RuntimePkgFileLineByPC(pc uintptr) (file string, line int)

RuntimePkgFileLineByPC caller

func RuntimePkgFileLineStrByPC ¶

func RuntimePkgFileLineStrByPC(pc uintptr) string

RuntimePkgFileLineStrByPC caller

func RuntimePkgIndex ¶

func RuntimePkgIndex(file, funcName string) int

RuntimePkgIndex by caller

func RuntimePkgPath ¶

func RuntimePkgPath() string

RuntimePkgPath ...

func SwapFileExtension ¶

func SwapFileExtension(filename, targetExt string) string

func ToSnakeCase ¶

func ToSnakeCase(s string) string

ToSnakeCase convertion

func WaitForExit ¶

func WaitForExit()

WaitForExit signal

func Workdir ¶

func Workdir() string

Workdir returns executable working dir

func WorkdirDSN ¶

func WorkdirDSN() string

WorkdirDSN returns executable working dir as DSN path

Example on windows: c/users/user/Desktop

func ZAtob ¶

func ZAtob(s string) []byte

ZAtob - zero alloc convert string to bytes

func ZBtoa ¶

func ZBtoa(b []byte) string

ZBtoa - zero alloc convert bytes to string