xxhash golang

main.go

package main


import (
    "fmt"
    "io"
    "os"
    "reflect"

    "github.com/cespare/xxhash/v2"
)


func xxh64Sum(filePath string) (uint64, error) {
    file, err := os.Open(filePath)
    if err != nil {
        return 0, err
    }
    defer file.Close()

    h := xxhash.New()
    if _, err = io.Copy(h, file); err != nil {
        return 0, err
    }
    return h.Sum64(), nil
}

func main() {
    path := os.Args[1]
    hash, err := xxh64Sum(path)
    if err != nil {
        fmt.Println(err)
    } else {
        fmt.Printf("file: %s, type: %s, hash: %d", path, reflect.TypeOf(hash), hash)
    }    
}