utils

Documentation

Index

• func IsExist(path string) bool
• func MustMkDirAll(basePath, dirName string)
• func MustMkFile(dirPath, fileName string)
• func ReturnErrorFromPanic(ep *error, errorHandlerFunc func(err error))

Functions

func IsExist

func IsExist(path string) bool

IsExist judge whether the file/directory exists.

func MustMkDirAll

func MustMkDirAll(basePath, dirName string)

MustMkDirAll behaves the same as `os.Mkdir`, but it will panic an error instead of return it.

func MustMkFile

func MustMkFile(dirPath, fileName string)

MustMkFile create a file then close it, if there is an error, it will panic it

func ReturnErrorFromPanic

func ReturnErrorFromPanic(ep *error, errorHandlerFunc func(err error))

ReturnErrorFromPanic is a function to handler a panic. Usage:

func foo() (retRrr error) {
	defer utils.ReturnErrorFromPanic(&retErr, func(err error) {
		fmt.Println(err)
	})
	// If you unwanted the handler function, you can use `nil` to instead of it.
	// defer utils.ReturnErrorFromPanic(&retErr, nil)
	// If there is a panic, `foo` will return an error which recover from ReturnErrorFromPanic.
	// If there is an error to return, you can panic it,
	// then the handler function can do something, like log the error, release the resource, etc.
	if err != nil {
		panic(err)
	}
	return
}