C# - How to read a text file from GZip

Question

Here is my problem, i'm trying to make minecraft classic server and i'm using text system to make allow list for each map, problem is text system makes a file for each map and we got around 15k maps in total, so if 1k of players add allow list to their maps, it would be hard to upload / move server to another host. i want to make a zip file in main folder of my software and add each text file to it and also making it readable with system, i want to know how to read a file from GZip, and how to compress files also.

Thanks

Answer 1

Here is my very easy working code. No temporary file

using (FileStream reader = File.OpenRead(filePath))
    using (GZipStream zip = new GZipStream(reader, CompressionMode.Decompress, true))
        using (StreamReader unzip = new StreamReader(zip))
            while(!unzip.EndOfStream)
                ReadLine(unzip.ReadLine());

Answer 2

If you want to avoid creating temporary files, you can use this:

using (Stream fileStream = File.OpenRead(filePath),
              zippedStream = new GZipStream(fileStream, CompressionMode.Decompress))
{
    using (StreamReader reader = new StreamReader(zippedStream))
    {
        // work with reader
    }
}