BadFileSystemHelper.cs

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using System.IO.Compression;
using System.Text;
using BadScript2.Common.Logging;
using BadScript2.IO.Virtual;
 
namespace BadScript2.IO;
 
public static class BadFileSystemHelper
{
    public static void ExportZip(this IFileSystem fs, Stream str, string path = "/")
    {
        BadLogger.Log("Exporting zip file..", "BFS");
 
        if (fs is not BadVirtualFileSystem vfs)
        {
            throw new NotSupportedException("Only virtual file systems are supported");
        }
 
        using ZipArchive zip = new ZipArchive(str, ZipArchiveMode.Update, true);
 
        foreach (string file in vfs.GetFiles(path, "", true))
        {
            BadLogger.Log("Exporting File: " + file, "BFS");
            ZipArchiveEntry e = zip.CreateEntry(file.Remove(0, path.Length));
            using Stream estr = e.Open();
            using Stream fstr = vfs.OpenRead(file);
            fstr.CopyTo(estr);
        }
    }
 
    public static void ImportZip(this IFileSystem fs, string path, string root = "/")
    {
        using FileStream str = new FileStream(path, FileMode.Open, FileAccess.Read);
        fs.ImportZip(str, root);
    }
 
    public static void ImportZip(this IFileSystem fs, Stream str, string root = "/", Encoding? encoding = null)
    {
        BadLogger.Log("Importing zip file..", "BFS");
 
        if (fs is not BadVirtualFileSystem vfs)
        {
            throw new NotSupportedException("Only virtual file systems are supported");
        }
 
        ZipArchive? arch = new ZipArchive(str, ZipArchiveMode.Read, false, encoding ?? Encoding.UTF8);
 
        if (arch == null)
        {
            throw new Exception("Failed to open zip file");
        }
 
        foreach (ZipArchiveEntry entry in arch.Entries)
        {
            BadLogger.Log("Importing File: " + entry.FullName, "BFS");
 
            if (BadVirtualPathReader.IsDirectory(root + entry.FullName))
            {
                continue;
            }
 
            string? dir = Path.GetDirectoryName(entry.FullName);
 
            if (dir != null && !string.IsNullOrEmpty(dir))
            {
                vfs.CreateDirectory(root + dir, true);
            }
 
            using Stream s = entry.Open();
            using Stream o = vfs.OpenWrite(root + entry.FullName, BadWriteMode.CreateNew);
            s.CopyTo(o);
        }
 
        arch.Dispose();
    }
}