util

func Error ¶

func Error(err error)

Error print error stack

func Event ¶

func Event(a ...interface{})

Event print event

func Fatal ¶

func Fatal(err error)

Fatal print error info and exit process

func Printf ¶

func Printf(l string, a ...interface{})

Printf wrap standard log library function

func Println ¶

func Println(a ...interface{})

Println wrap standard log library function

func RetryOnError ¶

func RetryOnError(ctx context.Context, retryCount int, fn func() error) error

RetryOnError defines a action with retry when "fn" returns error, we can specify the number and interval of retries code snippet from https://github.com/pingcap/schrodinger

func SendEMail ¶

func SendEMail(mailTo []string, subject string, body string) error

func Sleep ¶

func Sleep(ctx context.Context, sleepTime time.Duration)

Sleep defines special `sleep` with context