54 lines
916 B
Go
54 lines
916 B
Go
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package golanghelper
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import (
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"errors"
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"fmt"
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"io"
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"os"
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)
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type FileUtils struct {
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}
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func (f *FileUtils) CopyFile(srcFilePath, destFilePath string, isOverwrite bool) (err error) {
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var srcFileInfo os.FileInfo
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srcFileInfo, err = os.Stat(srcFilePath)
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if err != nil {
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return
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}
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if !srcFileInfo.Mode().IsRegular() {
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return errors.New(fmt.Sprintf("%s is not a regular file", srcFileInfo.Name()))
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}
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var isNotExist bool
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_, err = os.Stat(destFilePath)
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if err != nil {
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if os.IsNotExist(err) {
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isNotExist = true
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} else {
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return
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}
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}
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var destFile *os.File
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if isNotExist == false && isOverwrite == false {
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return errors.New("File already exists")
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}
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destFile, err = os.Create(destFilePath)
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if err != nil {
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return
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}
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defer destFile.Close()
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sourceFile, err := os.Open(srcFilePath)
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if err != nil {
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return
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}
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defer sourceFile.Close()
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_, err = io.Copy(destFile, sourceFile)
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return
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}
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