minio/hash-binary.go

29 lines
495 B
Go

package main
import (
"fmt"
"io"
"os"
"crypto/md5"
)
// mustHashBinarySelf computes MD5SUM of a binary file on disk
func hashBinary(progName string) (string, error) {
h := md5.New()
file, err := os.Open(progName) // For read access.
if err != nil {
return "", err
}
io.Copy(h, file)
return fmt.Sprintf("%x", h.Sum(nil)), nil
}
// mustHashBinarySelf computes MD5SUM of its binary file on disk
func mustHashBinarySelf() string {
hash, _ := hashBinary(os.Args[0])
return hash
}