Good afternoon, please tell me how can I add files with the same name to the archive? To be like copying, the file becomes file(1).* and there are two files file and file(1) . I am using Ionic.Zip

string BackupDir = @"C:\Users\Desktop\dir\backup.zip";
string PathToFolder = @"C:\Users\Desktop\dir";
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);    
    }
}

CodePudding user response：

Try this:

//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);    
}

CodePudding user response：

Check if file exists and add suffix to it's name.

Something like:

int nameCount = 1;
fileName = file.Name;

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