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file.go
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file.go
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// Copyright (c) 2020 tickstep.
//
// 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 localfile
import (
"os"
"path/filepath"
"strings"
)
// EqualLengthMD5 检测md5和大小是否相同
func (lfm *LocalFileMeta) EqualLengthMD5(m *LocalFileMeta) bool {
if lfm.Length != m.Length {
return false
}
if lfm.MD5 != m.MD5 {
return false
}
return true
}
// EqualLengthSHA1 检测sha1和大小是否相同
func (lfm *LocalFileMeta) EqualLengthSHA1(m *LocalFileMeta) bool {
if lfm.Length != m.Length {
return false
}
if lfm.SHA1 != m.SHA1 {
return false
}
return true
}
// CompleteAbsPath 补齐绝对路径
func (lfm *LocalFileMeta) CompleteAbsPath() {
if filepath.IsAbs(lfm.Path.LogicPath) {
return
}
absPath, err := filepath.Abs(lfm.Path.LogicPath)
if err != nil {
return
}
// windows
if os.PathSeparator == '\\' {
absPath = strings.ReplaceAll(absPath, "\\", "/")
}
lfm.Path.LogicPath = absPath
}
// GetFileSum 获取文件的大小, md5, crc32
func GetFileSum(localPath string, flag int) (lfc *LocalFileEntity, err error) {
lfc = NewLocalFileEntity(localPath)
defer lfc.Close()
err = lfc.OpenPath()
if err != nil {
return nil, err
}
err = lfc.Sum(flag)
if err != nil {
return nil, err
}
return lfc, nil
}