lib

This is a Go language library that provides some useful functions to facilitate rapid development.

中文自述在这里.

Installation

To use this library, you need to install it in your project. You can install it by running the following command:

go get github.com/limitcool/lib

Function List

Debugging and Environment

• SetDebugMode(debugFunction func()): Set the debug mode based on the environment variable and execute a debug function.

Slice Manipulation

• InSlice(element T, Slice []T) bool: Check if an element exists in a slice.
• Unique(slice []T) []T: Remove duplicate elements from a slice.
• Push(slice []T, element T) []T: Add an element to the end of a slice.
• Pop(slice []T) ([]T, T): Remove and return the last element from a slice.
• PopFront(slice []T) ([]T, T): Remove and return the first element from a slice.
• Exclude(slice []T, element T) []T: Return a slice without the specified element.
• Reverse(s []T) []T: Reverse the order of elements in a slice.

Map Manipulation

• Keys(m map[K]V) []K: Return a slice containing all the keys in a map.

Type Conversion

• IntToBool(a T) bool: Convert an integer to a boolean value.
• ConvertAnyToInterface(anyValue *any.Any) (interface{}, error): Convert Google's protobuf any.Any type to Go's interface{} type.
• ConvertInterfaceToAny(v interface{}) (*any.Any, error): Convert Go's interface{} type to Google's protobuf any.Any type.
• MustConvertInterfaceToAny(v interface{}) *any.Any: Similar to ConvertInterfaceToAny, but ignores errors.
• MustConvertAnyToInterface(anyValue *any.Any) interface{}: Similar to ConvertAnyToInterface, but ignores errors.

File and Folder Operations

• FileExists(filename string) bool: Check if a file exists.
• FolderExists(foldername string) bool: Check if a folder exists.
• FilesInFolder(dir, filename string) ([]string, error): Return a list of file paths containing the specified file in the given directory.
• ReadFile(filename string) (string, error): Read the content of a file and return it.
• CopyDir(src, dst, skip string) error: Copy a directory from the source path to the destination path, skipping files with a specific suffix.
• CopyDirHasSuffix(src, dst, suffix string) error: Copy files with a specific suffix from the source directory to the destination directory, renaming the copied files.
• CopyFile(src, dst string) error: Copy a single file from the source path to the destination path.
• ParentDir(p string) string: Return the parent directory of the given path.
• BaseDir(p string) string: Return the base directory of the given path.
• ParentBaseDir(p string) string: Return the parent base directory of the given path.
• CompressDir(dir string) error: Compress the specified directory into a zip file.

Hashing and Encryption

• GetSha256Hash(str string) string: Calculate the SHA-256 hash value of the given string and return it.

Web

• GetPage(c *gin.Context, DefaultPageSize int): Calculate the offset based on the page number parameter from the request and return it.
• ParseToken(token, secret string): Parse and validate the given token, and return the claims contained in it along with any potential errors.

MongoDB Specific

• MustMongoSlice2StringSlice(i interface{}) []string: Convert a MongoDB slice type to a Go string slice type, ignoring errors.
• MongoSlice2StringSlice(i interface{}) ([]string, error): Convert a MongoDB slice type to a Go string slice type, returning errors.

Usage Example

package main  
  
import (  
    "fmt"  
    "github.com/limitcool/lib" 
)  
  
func main() {  
    slice := []int{1, 2, 3, 4, 3}  
    uniqueSlice := lib.Unique(slice)  
    fmt.Println(uniqueSlice) // Output: [1 2 3 4]  
}