tool

tool

golang common utils functions

install

go get -u github.com/fuxingZhang/tool

doc

see here

function lists

func Retry(attempts int, sleep time.Duration, fn func() error) error
func Download(url, filepath string) error
func DownloadWithOptions(url, filepath string, option DownloadFileOption) (result DownloadFileResult)
func GetFuncName(fn interface{}) string 
func GetFuncNameWithPath(fn interface{}) string 
func PrettyPrint(v interface{}) 
func TrimStruct(src interface{}) error 
func CopyStruct(src, dst interface{}) error
func GetFileMd5(path string) (md5Val string, err error) 
func CheckFileExists(filepath string) (exist bool, err error) 
func CheckDirExists(path string) (exist bool, err error) 
func CheckPathExists(path string) (exist bool, err error)
func RandInt64(min, max int64) (num int64, err error)
func RandomStr(n int) string 
func TailFileBySystemCommand(path string, n int) (data []string, err error)
func TailFile(path string, n int) (data []string, err error) 
func LookupHost(dns, host string) (addrs []string, err error) 
func CopyDir(src string, dest string) error 
func CopyFile(src string, dest string) error 

usage

package main

import (
    "errors"
    "fmt"

    "github.com/fuxingZhang/tool"
)

func main() {
    err := tool.Retry(3, time.Millisecond*100, func() error {
        return tool.Download("http://localhost:8080/public/test.sh", "./test.sh")
    })
    fmt.Println(err)
}

sub package

slice

function lists

func ContainsInt(ints []int, val int) bool 
func ContainsStr(strs []string, s string) bool 

usage

package main

import (
    "errors"
    "fmt"

    "github.com/fuxingZhang/tool/slice"
)

func main() {
    fmt.Println(slice.ContainsInt([]int{1, 2, 3}, 1))
    fmt.Println(slice.ContainsStr([]string{"a", "b"}, "c"))
}