已添加具有相同密钥的项目Ionic.Zip

Question

下午好，请告诉我如何将同名文件添加到存档中？就像复制一样，文件变成文件(1(.*，有两个文件file和file(1(。我正在使用Ionic。Zip

string BackupDir = @"C:UsersDesktopdirbackup.zip";
string PathToFolder = @"C:UsersDesktopdir";
string[] AllFiles = Directory.GetFiles(PathToFolder, "*.*", SearchOption.AllDirectories);
using (ZipFile zip = new ZipFile(BackupDir, Encoding.UTF8))
{
foreach (string file in AllFiles)
{
try
{
DateTime FileCreationTime = File.GetCreationTime(file);
if (FileCreationTime >= DateTime.Now - new TimeSpan(60, 0, 0, 0))
{
Console.WriteLine(file);
zip.CompressionLevel = Ionic.Zlib.CompressionLevel.BestSpeed;
zip.AddFile(file, "");
}
}    
catch (Exception ex)
{
Console.WriteLine(ex);
}
zip.Save(BackupDir);    
}
}

Answer 1

试试这个：

//keep track of fileNames
var fileNames = new HashSet<string>(StringCompaer.OridialIgnoreCase);
foreach (string file in AllFiles)
{
try
{
DateTime FileCreationTime = File.GetCreationTime(file);
if (FileCreationTime >= DateTime.Now - new TimeSpan(60, 0, 0, 0))
{
Console.WriteLine(file);
zip.CompressionLevel = Ionic.Zlib.CompressionLevel.BestSpeed;
var fileName = Path.GetFileName(file);
if (fileNames.Add(fileName))
zip.AddFile(file, ""); //fileName could be added to fileNames = it is unique
else
{
//start with 1
int counter = 1;
//loop till you found a fileName thats not occupied
while (true)
{
//build the new file name 
var newFileName = $"{Path.GetFileNameWithoutExtension(fileName)} - {counter}{Path.GetExtension(fileName}";
if (fileNames.Add(newFileName))
{
fileName = newFileName; //use the new fileName
break; //break the loop
}

//increase counter if newFileName is already in the list fileNames
counter++;
}
var zipFileEntry = zip.AddFile(file, "");
zipFileEntry.FileName = fileName;
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
zip.Save(BackupDir);    
}

Answer 2

检查文件是否存在，并在其名称中添加后缀。

类似(伪代码(：

int nameCount = 1;
fileName = file.Name;
while(fileName exists in archive)
{
nameCount++;
fileName  = file.Name + "_" + nameCount;
}