utils

Documentation

Index

• Constants
• func CallerFile(skipStack int) string
• func CallerFileName(skipStack int) string
• func Env(key, fallback string) string
• func EnvBool(key string, fallback bool) bool
• func EnvInt(key string, fallback int) int
• func EnvLookup(key string) (string, bool)
• func EnvUint(key string, fallback uint) uint
• func FitImageFile(filename string, maxWidth, maxHeight uint, file io.Reader) (*bytes.Buffer, error)
• func OnExit(handlers ...func(os.Signal))
• func RandInit()
• func RandLetterBytes(n int) []byte
• func RandString(n int) string
• func Workdir() string

Constants

const (
	KB int64
	MB
	GB
)

FileSize util

Functions

func CallerFile

func CallerFile(skipStack int) string

CallerFile returns path to caller file

func CallerFileName

func CallerFileName(skipStack int) string

CallerFileName returns name of caller file

func Env

func Env(key, fallback string) string

Env returns env variable, fallback when no there

func EnvBool

func EnvBool(key string, fallback bool) bool

EnvBool variable or fallback

func EnvInt

func EnvInt(key string, fallback int) int

EnvInt is Env + convert to int

func EnvLookup

func EnvLookup(key string) (string, bool)

EnvLookup alias os.LookupEnv + .env

func EnvUint

func EnvUint(key string, fallback uint) uint

EnvUint is Env + convert to uint

func FitImageFile

func FitImageFile(filename string, maxWidth, maxHeight uint, file io.Reader) (*bytes.Buffer, error)

FitImageFile thumbnail

func OnExit

func OnExit(handlers ...func(os.Signal))

OnExit program

func RandInit

func RandInit()

RandInit for init rand seed from time

func RandLetterBytes

func RandLetterBytes(n int) []byte

RandLetterBytes fast generator

func RandString

func RandString(n int) string

RandString fast generator

func Workdir

func Workdir() string

Workdir returns executable working dir