Much better startup time on shared bot

src/NadekoBot/Modules/Administration/Administration.cs

@@ -36,7 +36,7 @@ namespace NadekoBot.Modules.Administration
         {
             using (var uow = DbHandler.UnitOfWork())
             {
-                var configs = uow.GuildConfigs.GetAll();
+                var configs = NadekoBot.AllGuildConfigs;
                 GuildMuteRoles = new ConcurrentDictionary<ulong, string>(configs
                         .Where(c=>!string.IsNullOrWhiteSpace(c.MuteRoleName))
                         .ToDictionary(c => c.GuildId, c => c.MuteRoleName));

src/NadekoBot/Modules/Administration/Commands/LogCommand.cs

@@ -41,8 +41,7 @@ namespace NadekoBot.Modules.Administration
 
                 using (var uow = DbHandler.UnitOfWork())
                 {
-                    GuildLogSettings = new ConcurrentDictionary<ulong, LogSetting>(uow.GuildConfigs
+                    GuildLogSettings = new ConcurrentDictionary<ulong, LogSetting>(NadekoBot.AllGuildConfigs
-                                                                                      .GetAll()
                                                                                       .ToDictionary(g => g.GuildId, g => g.LogSetting));
                 }
 

src/NadekoBot/Modules/Administration/Commands/VoicePlusTextCommands.cs

@@ -25,7 +25,7 @@ namespace NadekoBot.Modules.Administration
             {
                 using (var uow = DbHandler.UnitOfWork())
                 {
-                    voicePlusTextCache = new ConcurrentHashSet<ulong>(uow.GuildConfigs.GetAll().Where(g => g.VoicePlusTextEnabled).Select(g => g.GuildId));
+                    voicePlusTextCache = new ConcurrentHashSet<ulong>(NadekoBot.AllGuildConfigs.Where(g => g.VoicePlusTextEnabled).Select(g => g.GuildId));
                 }
                 NadekoBot.Client.UserVoiceStateUpdated += UserUpdatedEventHandler;
             }

src/NadekoBot/Modules/Games/Commands/PlantAndPickCommands.cs

@@ -54,7 +54,7 @@ namespace NadekoBot.Modules.Games
                 {
                     var conf = uow.BotConfig.GetOrCreate();
                     var x =
-                    generationChannels = new ConcurrentHashSet<ulong>(uow.GuildConfigs.GetAll()
+                    generationChannels = new ConcurrentHashSet<ulong>(NadekoBot.AllGuildConfigs
                         .SelectMany(c => c.GenerateCurrencyChannelIds.Select(obj=>obj.ChannelId)));
                     chance = conf.CurrencyGenerationChance;
                     cooldown = conf.CurrencyGenerationCooldown;

src/NadekoBot/Modules/Permissions/Commands/CmdCdsCommands.cs

@@ -33,7 +33,7 @@ namespace NadekoBot.Modules.Permissions
             {
                 using (var uow = DbHandler.UnitOfWork())
                 {
-                    var configs = uow.GuildConfigs.GetAll();
+                    var configs = NadekoBot.AllGuildConfigs;
                     commandCooldowns = new ConcurrentDictionary<ulong, ConcurrentHashSet<CommandCooldown>>(configs.ToDictionary(k => k.GuildId, v => new ConcurrentHashSet<CommandCooldown>(v.CommandCooldowns)));
                 }
             }

src/NadekoBot/Modules/Permissions/Commands/FilterCommands.cs

@@ -46,7 +46,7 @@ namespace NadekoBot.Modules.Permissions
             {
                 using (var uow = DbHandler.UnitOfWork())
                 {
-                    var guildConfigs = uow.GuildConfigs.GetAll();
+                    var guildConfigs = NadekoBot.AllGuildConfigs;
 
                     InviteFilteringServers = new ConcurrentHashSet<ulong>(guildConfigs.Where(gc => gc.FilterInvites).Select(gc => gc.GuildId));
                     InviteFilteringChannels = new ConcurrentHashSet<ulong>(guildConfigs.SelectMany(gc => gc.FilterInvitesChannelIds.Select(fci => fci.ChannelId)));

src/NadekoBot/NadekoBot.cs

@@ -19,6 +19,7 @@ using Module = Discord.Commands.Module;
 using NadekoBot.TypeReaders;
 using System.Collections.Concurrent;
 using NadekoBot.Modules.Music;
+using NadekoBot.Services.Database.Models;
 
 namespace NadekoBot
 {
@@ -38,6 +39,16 @@ namespace NadekoBot
         public static ConcurrentDictionary<string, string> ModulePrefixes { get; private set; }
         public static bool Ready { get; private set; }
 
+        public static IEnumerable<GuildConfig> AllGuildConfigs { get; }
+
+        static NadekoBot()
+        {
+            using (var uow = DbHandler.UnitOfWork())
+            {
+                AllGuildConfigs = uow.GuildConfigs.GetAll();
+            }
+        }
+
         public async Task RunAsync(string[] args)
         {
             SetupLogger();

src/NadekoBot/Services/DbHandler.cs

@@ -19,18 +19,19 @@ namespace NadekoBot.Services
         static DbHandler() { }
 
         private DbHandler() {
-            switch (NadekoBot.Credentials.Db.Type.ToUpperInvariant())
+            dbType = typeof(NadekoSqliteContext);
-            {
+            //switch (NadekoBot.Credentials.Db.Type.ToUpperInvariant())
-                case "SQLITE":
+            //{
-                    dbType = typeof(NadekoSqliteContext);
+            //    case "SQLITE":
-                    break;
+            //        dbType = typeof(NadekoSqliteContext);
-                //case "SQLSERVER":
+            //        break;
-                //    dbType = typeof(NadekoSqlServerContext);
+            //    //case "SQLSERVER":
-                //    break;
+            //    //    dbType = typeof(NadekoSqlServerContext);
-                default:
+            //    //    break;
-                    break;
+            //    default:
+            //        break;
 
-            }
+            //}
         }
 
         public NadekoContext GetDbContext() =>