NadekoBot/NadekoBot.Core/Modules/Administration/Services/PackagesService.cs

using NadekoBot.Core.Services;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;

namespace NadekoBot.Modules.Administration.Services
{
    public class PackagesService : INService
    {
        public IEnumerable<string> Packages { get; private set; }

        public PackagesService()
        {
            ReloadAvailablePackages();
        }

        public void ReloadAvailablePackages()
        {
            Packages = Directory.GetDirectories(Path.Combine(AppContext.BaseDirectory, "modules\\"), "NadekoBot.Modules.*", SearchOption.AllDirectories)
                   .SelectMany(x => Directory.GetFiles(x, "NadekoBot.Modules.*.dll"))
                   .Select(x => Path.GetFileNameWithoutExtension(x))
                   .Select(x =>
                   {
                       var m = Regex.Match(x, @"NadekoBot\.Modules\.(?<name>.*)");
                       return m.Groups["name"].Value;
                   });
        }
    }
}