[C#/Mono] Zip

wZip.cs

using System;
using System.IO;
using System.IO.Compression;

public class WZip
{
 public WZip() {
 }

 public void zipFromDirectory(string dir, string zipFile) {
        ZipFile.CreateFromDirectory(dir, zipFile);
    }
 
 public void unzipToDirectory(string zipFile, string dir) {
        ZipFile.ExtractToDirectory(zipFile, dir);
 }
 
 public void zipAddFile(string zipFile, string file, string entryName) {
  using( ZipArchive archive = ZipFile.Open(zipFile, ZipArchiveMode.Update) ) {
   archive.CreateEntryFromFile(file, entryName);
   //archive.ExtractToDirectory(extractPath);
  } 
 }
 
 public void zipExtractFile(string zipFile, string file, string entryName) {
     using( ZipArchive archive = ZipFile.OpenRead(zipFile) ) {
            foreach (ZipArchiveEntry entry in archive.Entries) {
                //if (entry.FullName.EndsWith(".txt", StringComparison.OrdinalIgnoreCase)) {
                if( entry.FullName.Equals( entryName ) ) {
                    entry.ExtractToFile(file);
                }
            }
        }
 }
}