зеркало из https://github.com/microsoft/docker.git
25 строки
338 B
Go
25 строки
338 B
Go
package utils
|
|
|
|
import (
|
|
"encoding/hex"
|
|
"hash"
|
|
"io"
|
|
)
|
|
|
|
type CheckSum struct {
|
|
io.Reader
|
|
Hash hash.Hash
|
|
}
|
|
|
|
func (cs *CheckSum) Read(buf []byte) (int, error) {
|
|
n, err := cs.Reader.Read(buf)
|
|
if err == nil {
|
|
cs.Hash.Write(buf[:n])
|
|
}
|
|
return n, err
|
|
}
|
|
|
|
func (cs *CheckSum) Sum() string {
|
|
return hex.EncodeToString(cs.Hash.Sum(nil))
|
|
}
|