public static bool Contains(string archive, string entryName)
{
using (var zf = new ZipFile(archive, true))
{
return(zf.Find(ZipEntry.NormalizeName(entryName)) != null);
}
}
public ZipEntry Add(Stream fileStream, string entryName, CompressionType compressionType)
{
string name = ZipEntry.NormalizeName(entryName);
ZipEntry zipEntry = Find(name);
if (zipEntry != null)
{
if (!AllowReplacingEntries)
{
throw new Exception(string.Format("Entry {0} already exists.", entryName));
}
zipEntry.SetNewStream(fileStream, compressionType);
_isChanged = true;
}
else
{
zipEntry = new ZipEntry(fileStream, name, compressionType);
zipEntry.UseUtf8Encoding = UseUtf8Encoding;
zipEntry.UseDataDescriptor = UseDataDescriptor;
zipEntry.UseDataDescriptorSignature = UseDataDescriptorSignature;
_entries.Add(zipEntry);
if (_isNew && !AllowReplacingEntries)
{
zipEntry.WriteEntry(_archiveStream);
}
}
_isDirty = true;
return(zipEntry);
}
public void Delete(string entryName)
{
if (_readOnly)
{
throw new Exception("ZipFile is readonly, delete can not be executed");
}
if (_isNew)
{
throw new Exception("Can not delete from new archive");
}
ZipEntry zipEntry = Find(ZipEntry.NormalizeName(entryName));
if (zipEntry != null)
{
_entries.Remove(zipEntry);
_isChanged = true;
_isDirty = true;
}
}
public ZipEntry Find(string entryName)
{
string name = ZipEntry.NormalizeName(entryName);
return(_entries.FirstOrDefault(x => x.Name.Equals(name, StringComparison.OrdinalIgnoreCase)));
}