copy.go

copy.go

func main() {
	/*user := C.CString("foo")
	pass := C.CString("pass")
	remote := C.CString("127.0.0.1")
	port := C.CString("2222")
	//pattern := C.CString("/upload")

	fromPath := C.CString("/upload/2019040900050927.pdf")
	toPath := C.CString("/upload/public/locales/my_pdf.pdf")
	//toPath := C.CString("/upload/views/copy_2019040900050927.pdf")

	// fmt.Println(C.GoString(ListPath(remote, port, user, pass, pattern)))
	// fmt.Println(C.GoString(Download(remote, port, user, pass, fromPath, toPath)))
	// fmt.Println(C.GoString(Delete(remote, port, user, pass, fromPath)))
	// fmt.Println(C.GoString(Copy(remote, port, user, pass, fromPath, toPath)))
	fmt.Println(C.GoString(Move(remote, port, user, pass, fromPath, toPath)))
	*/

	srcFile, err := os.Open("/home/cristianvasquez/go/src/vsftp/IMG_20190329_100716038.jpg")
	if err != nil {
		fmt.Println(err)
		return
	}
	defer srcFile.Close()

	dstFile, err2 := os.Create("/home/cristianvasquez/go/src/vsftp/IMG_20190329_100716038_copy.jpg")
	if err2 != nil {
		fmt.Println(err2)
		return
	}
	defer dstFile.Close()

	const bufferSize = 1048576 // 1 Mb

	fileStat, _ := srcFile.Stat()
	size := fileStat.Size()
	loopValue := int(size / bufferSize)
	last := int64(size % bufferSize)

	for i := 0; i < loopValue; i++ {
		if _, err := io.CopyN(dstFile, srcFile, bufferSize); err != nil {
			log.Fatal(err)
		}
	}

	if last > 0 {
		if _, err := io.CopyN(dstFile, srcFile, last); err != nil {
			log.Fatal(err)
		}
	}
}