Files
cloudpods/cmd/chksum/main.go
2019-03-29 14:47:48 +08:00

70 lines
1.6 KiB
Go

// Copyright 2019 Yunion
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"crypto/md5"
"crypto/sha1"
"crypto/sha256"
"crypto/sha512"
"fmt"
"hash"
"os"
"strconv"
"time"
"yunion.io/x/onecloud/pkg/util/fileutils2"
)
func main() {
if len(os.Args) < 2 {
fmt.Printf("Usage: %s <file> [sample]\n", os.Args[0])
return
}
names := []string{"MD5", "SHA1", "SHA256", "SHA512"}
hashes := []hash.Hash{md5.New(), sha1.New(), sha256.New(), sha512.New()}
start := time.Now()
var sample int
var err error
if len(os.Args) > 2 {
sample, err = strconv.Atoi(os.Args[2])
if err != nil {
fmt.Printf("illegal sample %s", err)
return
}
}
var results [][]byte
if sample > 0 {
results, err = fileutils2.FileFastHash(os.Args[1], hashes, sample)
} else {
results, err = fileutils2.FileHash(os.Args[1], hashes)
}
if err != nil {
fmt.Printf("Error: %s", err)
return
}
for i := 0; i < len(results); i += 1 {
fmt.Printf("%s: %x\n", names[i], results[i])
}
sum := fileutils2.SumHashes(results)
fmt.Printf("SUM: %x\n", sum)
cost := time.Now().Sub(start)
fmt.Printf("Time: %dms\n", cost/time.Millisecond)
}