/// <summary>
/// Removes one of many files in storage. It creates a new Zip file.
/// </summary>
/// <param name="_zip">Reference to the current Zip object</param>
/// <param name="_zfes">List of Entries to remove from storage</param>
/// <returns>True if success, false if not</returns>
/// <remarks>This method only works for storage of type FileStream</remarks>
public static bool RemoveEntries(ref FwkZip _zip, List <ZipFileEntry> _zfes)
{
if (!(_zip.ZipFileStream is FileStream))
{
throw new InvalidOperationException("RemoveEntries is allowed just over streams of type FileStream");
}
//Get full list of entries
List <ZipFileEntry> fullList = _zip.ReadCentralDir();
//In order to delete we need to create a copy of the zip file excluding the selected items
string tempZipName = Path.GetTempFileName();
string tempEntryName = Path.GetTempFileName();
try
{
FwkZip tempZip = FwkZip.Create(tempZipName, string.Empty);
foreach (ZipFileEntry zfe in fullList)
{
if (!_zfes.Contains(zfe))
{
if (_zip.ExtractFile(zfe, tempEntryName))
{
tempZip.AddFile(zfe.Method, tempEntryName, zfe.FilenameInZip, zfe.Comment);
}
}
}
_zip.Close();
tempZip.Close();
File.Delete(_zip.FileName);
File.Move(tempZipName, _zip.FileName);
_zip = FwkZip.Open(_zip.FileName, _zip.Access);
}
catch
{
return(false);
}
finally
{
if (File.Exists(tempZipName))
{
File.Delete(tempZipName);
}
if (File.Exists(tempEntryName))
{
File.Delete(tempEntryName);
}
}
return(true);
}
/// <summary>
/// Genera un archivo zip de todoslos archivos pasados por parametro
/// para abrirlo en memoria se puede usar Byte[] zipFile = FileFunctions.OpenBinaryFile(zipFullName);
/// </summary>
/// <param name="selectedFilesToZip">Lista de archivos a comprimir</param>
/// <param name="zipFullName">Nombre del archivo zip</param>
/// <returns></returns>
public static FileInfo Compress(String[] selectedFilesToZip, string zipFullName)
{
//string tempFolder = System.IO.Path.Combine(Environment.CurrentDirectory, "temp");
//if (Directory.Exists(tempFolder))
// DeleteDirectory(tempFolder);
//Directory.CreateDirectory(tempFolder);
//copy selected files to temp folder
//foreach (string filename in selectedFilesToZip)
//{
// FileInfo f = new FileInfo(filename);
// f.CopyTo(tempFolder + @"\" + f.Name);
//}
//string zipFullName = System.IO.Path.Combine(tempFolder, zipFileName);
FwkZip zip = FwkZip.Create(zipFullName, "Generated pelsoft");
// Stores all the files into the zip file
foreach (string file in selectedFilesToZip)
{
zip.AddFile(FwkZip.Compression.Deflate, file, Path.GetFileName(file), "");
}
//crear binario con el zip
using (MemoryStream readme = new MemoryStream(
System.Text.Encoding.UTF8.GetBytes(string.Format("{0}\r\nThis file has been {1} using the ZipStorer class, by Jaime Olivares.",
DateTime.Now, "created"))))
{
// Stores a new file directly from the stream
zip.AddStream(FwkZip.Compression.Store, "readme.txt", readme, DateTime.Now, "Please read");
}
zip.Close();
FileInfo f = new FileInfo(zipFullName);
return(f);
//Byte[] zipFile = FileFunctions.OpenBinaryFile(zipFullName);
//return zipFile;
}