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730 lines
30 KiB
730 lines
30 KiB
using IPA.Config;
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using IPA.Loader.Features;
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using IPA.Logging;
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using IPA.Utilities;
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using Mono.Cecil;
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using Newtonsoft.Json;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using Version = SemVer.Version;
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using SemVer;
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#if NET4
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using Task = System.Threading.Tasks.Task;
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using TaskEx = System.Threading.Tasks.Task;
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#endif
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#if NET3
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using Net3_Proxy;
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using Path = Net3_Proxy.Path;
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using File = Net3_Proxy.File;
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using Directory = Net3_Proxy.Directory;
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#endif
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namespace IPA.Loader
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{
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/// <summary>
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/// A type to manage the loading of plugins.
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/// </summary>
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internal class PluginLoader
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{
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internal static Task LoadTask() =>
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TaskEx.Run(() =>
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{
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YeetIfNeeded();
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LoadMetadata();
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Resolve();
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ComputeLoadOrder();
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FilterDisabled();
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ResolveDependencies();
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});
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internal static void YeetIfNeeded()
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{
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string pluginDir = UnityGame.PluginsPath;
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if (SelfConfig.YeetMods_ && UnityGame.IsGameVersionBoundary)
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{
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var oldPluginsName = Path.Combine(UnityGame.InstallPath, $"Old {UnityGame.OldVersion} Plugins");
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var newPluginsName = Path.Combine(UnityGame.InstallPath, $"Old {UnityGame.GameVersion} Plugins");
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if (Directory.Exists(oldPluginsName))
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Directory.Delete(oldPluginsName, true);
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Directory.Move(pluginDir, oldPluginsName);
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if (Directory.Exists(newPluginsName))
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Directory.Move(newPluginsName, pluginDir);
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else
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Directory.CreateDirectory(pluginDir);
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}
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}
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internal static List<PluginMetadata> PluginsMetadata = new List<PluginMetadata>();
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internal static List<PluginMetadata> DisabledPlugins = new List<PluginMetadata>();
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private static readonly Regex embeddedTextDescriptionPattern = new Regex(@"#!\[(.+)\]", RegexOptions.Compiled | RegexOptions.Singleline);
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internal static void LoadMetadata()
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{
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string[] plugins = Directory.GetFiles(UnityGame.PluginsPath, "*.dll");
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try
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{
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var selfMeta = new PluginMetadata
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{
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Assembly = Assembly.GetExecutingAssembly(),
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File = new FileInfo(Path.Combine(UnityGame.InstallPath, "IPA.exe")),
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PluginType = null,
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IsSelf = true
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};
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string manifest;
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using (var manifestReader =
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new StreamReader(
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selfMeta.Assembly.GetManifestResourceStream(typeof(PluginLoader), "manifest.json") ??
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throw new InvalidOperationException()))
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manifest = manifestReader.ReadToEnd();
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selfMeta.Manifest = JsonConvert.DeserializeObject<PluginManifest>(manifest);
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PluginsMetadata.Add(selfMeta);
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}
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catch (Exception e)
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{
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Logger.loader.Critical("Error loading own manifest");
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Logger.loader.Critical(e);
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}
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foreach (var plugin in plugins)
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{
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var metadata = new PluginMetadata
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{
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File = new FileInfo(Path.Combine(UnityGame.PluginsPath, plugin)),
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IsSelf = false
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};
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try
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{
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var pluginModule = AssemblyDefinition.ReadAssembly(plugin, new ReaderParameters
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{
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ReadingMode = ReadingMode.Immediate,
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ReadWrite = false,
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AssemblyResolver = new CecilLibLoader()
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}).MainModule;
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string pluginNs = "";
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foreach (var resource in pluginModule.Resources)
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{
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const string manifestSuffix = ".manifest.json";
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if (!(resource is EmbeddedResource embedded) ||
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!embedded.Name.EndsWith(manifestSuffix)) continue;
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pluginNs = embedded.Name.Substring(0, embedded.Name.Length - manifestSuffix.Length);
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string manifest;
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using (var manifestReader = new StreamReader(embedded.GetResourceStream()))
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manifest = manifestReader.ReadToEnd();
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metadata.Manifest = JsonConvert.DeserializeObject<PluginManifest>(manifest);
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break;
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}
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if (metadata.Manifest == null)
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{
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#if DIRE_LOADER_WARNINGS
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Logger.loader.Error($"Could not find manifest.json for {Path.GetFileName(plugin)}");
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#else
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Logger.loader.Notice($"No manifest.json in {Path.GetFileName(plugin)}");
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#endif
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continue;
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}
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void TryGetNamespacedPluginType(string ns, PluginMetadata meta)
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{
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foreach (var type in pluginModule.Types)
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{
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if (type.Namespace != ns) continue;
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if (type.HasCustomAttributes)
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{
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var attr = type.CustomAttributes.FirstOrDefault(a => a.Constructor.DeclaringType.FullName == typeof(PluginAttribute).FullName);
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if (attr != null)
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{
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if (!attr.HasConstructorArguments)
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{
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Logger.loader.Warn($"Attribute plugin found in {type.FullName}, but attribute has no arguments");
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return;
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}
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var args = attr.ConstructorArguments;
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if (args.Count != 1)
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{
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Logger.loader.Warn($"Attribute plugin found in {type.FullName}, but attribute has unexpected number of arguments");
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return;
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}
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var rtOptionsArg = args[0];
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if (rtOptionsArg.Type.FullName != typeof(RuntimeOptions).FullName)
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{
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Logger.loader.Warn($"Attribute plugin found in {type.FullName}, but first argument is of unexpected type {rtOptionsArg.Type.FullName}");
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return;
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}
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var rtOptionsValInt = (int)rtOptionsArg.Value; // `int` is the underlying type of RuntimeOptions
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meta.RuntimeOptions = (RuntimeOptions)rtOptionsValInt;
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meta.PluginType = type;
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return;
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}
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}
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}
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}
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var hint = metadata.Manifest.Misc?.PluginMainHint;
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if (hint != null)
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{
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var type = pluginModule.GetType(hint);
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if (type != null)
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TryGetNamespacedPluginType(hint, metadata);
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}
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if (metadata.PluginType == null)
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TryGetNamespacedPluginType(pluginNs, metadata);
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if (metadata.PluginType == null)
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{
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Logger.loader.Error($"No plugin found in the manifest {(hint != null ? $"hint path ({hint}) or " : "")}namespace ({pluginNs}) in {Path.GetFileName(plugin)}");
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continue;
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}
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Logger.loader.Debug($"Adding info for {Path.GetFileName(plugin)}");
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PluginsMetadata.Add(metadata);
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}
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catch (Exception e)
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{
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Logger.loader.Error($"Could not load data for plugin {Path.GetFileName(plugin)}");
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Logger.loader.Error(e);
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ignoredPlugins.Add(metadata, new IgnoreReason(Reason.Error)
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{
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ReasonText = "An error ocurred loading the data",
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Error = e
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});
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}
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}
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IEnumerable<string> bareManifests = Directory.GetFiles(UnityGame.PluginsPath, "*.json");
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bareManifests = bareManifests.Concat(Directory.GetFiles(UnityGame.PluginsPath, "*.manifest"));
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foreach (var manifest in bareManifests)
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{ // TODO: maybe find a way to allow a bare manifest to specify an associated file
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try
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{
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var metadata = new PluginMetadata
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{
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File = new FileInfo(Path.Combine(UnityGame.PluginsPath, manifest)),
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IsSelf = false,
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IsBare = true,
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};
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metadata.Manifest = JsonConvert.DeserializeObject<PluginManifest>(File.ReadAllText(manifest));
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Logger.loader.Debug($"Adding info for bare manifest {Path.GetFileName(manifest)}");
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PluginsMetadata.Add(metadata);
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}
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catch (Exception e)
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{
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Logger.loader.Error($"Could not load data for bare manifest {Path.GetFileName(manifest)}");
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Logger.loader.Error(e);
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}
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}
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foreach (var meta in PluginsMetadata)
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{ // process description include
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var lines = meta.Manifest.Description.Split('\n');
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var m = embeddedTextDescriptionPattern.Match(lines[0]);
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if (m.Success)
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{
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if (meta.IsBare)
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{
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Logger.loader.Warn($"Bare manifest cannot specify description file");
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meta.Manifest.Description = string.Join("\n", lines.Skip(1).StrJP()); // ignore first line
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continue;
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}
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var name = m.Groups[1].Value;
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string description;
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if (!meta.IsSelf)
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{
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var resc = meta.PluginType.Module.Resources.Select(r => r as EmbeddedResource)
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.NonNull()
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.FirstOrDefault(r => r.Name == name);
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if (resc == null)
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{
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Logger.loader.Warn($"Could not find description file for plugin {meta.Name} ({name}); ignoring include");
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meta.Manifest.Description = string.Join("\n", lines.Skip(1).StrJP()); // ignore first line
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continue;
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}
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using var reader = new StreamReader(resc.GetResourceStream());
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description = reader.ReadToEnd();
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}
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else
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{
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using var descriptionReader = new StreamReader(meta.Assembly.GetManifestResourceStream(name));
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description = descriptionReader.ReadToEnd();
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}
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meta.Manifest.Description = description;
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}
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}
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}
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internal enum Reason
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{
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Error, Duplicate, Conflict, Dependency,
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Released, Feature, Unsupported
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}
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internal struct IgnoreReason
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{
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public Reason Reason { get; }
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public string ReasonText { get; set; }
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public Exception Error { get; set; }
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public PluginMetadata RelatedTo { get; set; }
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public IgnoreReason(Reason reason)
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{
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Reason = reason;
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ReasonText = null;
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Error = null;
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RelatedTo = null;
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}
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}
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// keep track of these for the updater; it should still be able to update mods not loaded
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// the thing -> the reason
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internal static Dictionary<PluginMetadata, IgnoreReason> ignoredPlugins = new Dictionary<PluginMetadata, IgnoreReason>();
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internal static void Resolve()
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{ // resolves duplicates and conflicts, etc
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PluginsMetadata.Sort((a, b) => b.Version.CompareTo(a.Version));
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var ids = new HashSet<string>();
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var ignore = new Dictionary<PluginMetadata, IgnoreReason>();
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var resolved = new List<PluginMetadata>(PluginsMetadata.Count);
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foreach (var meta in PluginsMetadata)
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{
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if (meta.Id != null)
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{
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if (ids.Contains(meta.Id))
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{
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Logger.loader.Warn($"Found duplicates of {meta.Id}, using newest");
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var ireason = new IgnoreReason(Reason.Duplicate)
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{
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ReasonText = $"Duplicate entry of same ID ({meta.Id})",
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RelatedTo = resolved.First(p => p.Id == meta.Id)
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};
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ignore.Add(meta, ireason);
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ignoredPlugins.Add(meta, ireason);
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continue; // because of sorted order, hightest order will always be the first one
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}
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bool processedLater = false;
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foreach (var meta2 in PluginsMetadata)
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{
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if (ignore.ContainsKey(meta2)) continue;
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if (meta == meta2)
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{
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processedLater = true;
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continue;
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}
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if (!meta2.Manifest.Conflicts.ContainsKey(meta.Id)) continue;
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var range = meta2.Manifest.Conflicts[meta.Id];
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if (!range.IsSatisfied(meta.Version)) continue;
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Logger.loader.Warn($"{meta.Id}@{meta.Version} conflicts with {meta2.Id}");
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if (processedLater)
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{
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Logger.loader.Warn($"Ignoring {meta2.Name}");
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ignore.Add(meta2, new IgnoreReason(Reason.Conflict)
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{
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ReasonText = $"{meta.Id}@{meta.Version} conflicts with {meta2.Id}",
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RelatedTo = meta
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});
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}
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else
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{
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Logger.loader.Warn($"Ignoring {meta.Name}");
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ignore.Add(meta, new IgnoreReason(Reason.Conflict)
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{
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ReasonText = $"{meta2.Id}@{meta2.Version} conflicts with {meta.Id}",
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RelatedTo = meta2
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});
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break;
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}
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}
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}
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if (ignore.TryGetValue(meta, out var reason))
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{
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ignoredPlugins.Add(meta, reason);
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continue;
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}
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if (meta.Id != null)
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ids.Add(meta.Id);
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resolved.Add(meta);
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}
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PluginsMetadata = resolved;
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}
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private static void FilterDisabled()
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{
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var enabled = new List<PluginMetadata>(PluginsMetadata.Count);
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var disabled = DisabledConfig.Instance.DisabledModIds;
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foreach (var meta in PluginsMetadata)
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{
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if (disabled.Contains(meta.Id ?? meta.Name))
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DisabledPlugins.Add(meta);
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else
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enabled.Add(meta);
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}
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PluginsMetadata = enabled;
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}
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internal static void ComputeLoadOrder()
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{
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#if DEBUG
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Logger.loader.Debug(string.Join(", ", PluginsMetadata.Select(p => p.ToString()).StrJP()));
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#endif
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static bool InsertInto(HashSet<PluginMetadata> root, PluginMetadata meta, bool isRoot = false)
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{ // this is slow, and hella recursive
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bool inserted = false;
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foreach (var sr in root)
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{
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inserted = inserted || InsertInto(sr.Dependencies, meta);
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if (meta.Id != null)
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if (sr.Manifest.Dependencies.ContainsKey(meta.Id) || sr.Manifest.LoadAfter.Contains(meta.Id))
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inserted = inserted || sr.Dependencies.Add(meta);
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if (sr.Id != null)
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if (meta.Manifest.LoadBefore.Contains(sr.Id))
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inserted = inserted || sr.Dependencies.Add(meta);
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}
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if (isRoot)
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{
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foreach (var sr in root)
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{
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InsertInto(meta.Dependencies, sr);
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if (sr.Id != null)
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if (meta.Manifest.Dependencies.ContainsKey(sr.Id) || meta.Manifest.LoadAfter.Contains(sr.Id))
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meta.Dependencies.Add(sr);
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if (meta.Id != null)
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if (sr.Manifest.LoadBefore.Contains(meta.Id))
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meta.Dependencies.Add(sr);
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}
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root.Add(meta);
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}
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return inserted;
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}
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var pluginTree = new HashSet<PluginMetadata>();
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foreach (var meta in PluginsMetadata)
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InsertInto(pluginTree, meta, true);
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static void DeTree(List<PluginMetadata> into, HashSet<PluginMetadata> tree)
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{
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foreach (var st in tree)
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if (!into.Contains(st))
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{
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DeTree(into, st.Dependencies);
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into.Add(st);
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}
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}
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PluginsMetadata = new List<PluginMetadata>();
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DeTree(PluginsMetadata, pluginTree);
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#if DEBUG
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Logger.loader.Debug(string.Join(", ", PluginsMetadata.Select(p => p.ToString()).StrJP()));
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#endif
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}
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internal static void ResolveDependencies()
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{
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var metadata = new List<PluginMetadata>();
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var pluginsToLoad = new Dictionary<string, Version>();
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var disabledLookup = DisabledPlugins.NonNull(m => m.Id).ToDictionary(m => m.Id, m => m.Version);
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foreach (var meta in PluginsMetadata)
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{
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var missingDeps = new List<(string id, Range version, bool disabled)>();
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foreach (var dep in meta.Manifest.Dependencies)
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{
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#if DEBUG
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Logger.loader.Debug($"Looking for dependency {dep.Key} with version range {dep.Value.Intersect(new SemVer.Range("*.*.*"))}");
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#endif
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if (pluginsToLoad.ContainsKey(dep.Key) && dep.Value.IsSatisfied(pluginsToLoad[dep.Key]))
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continue;
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if (disabledLookup.ContainsKey(dep.Key) && dep.Value.IsSatisfied(disabledLookup[dep.Key]))
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{
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Logger.loader.Warn($"Dependency {dep.Key} was found, but disabled. Disabling {meta.Name} too.");
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missingDeps.Add((dep.Key, dep.Value, true));
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}
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else
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{
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Logger.loader.Warn($"{meta.Name} is missing dependency {dep.Key}@{dep.Value}");
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missingDeps.Add((dep.Key, dep.Value, false));
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}
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}
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if (missingDeps.Count == 0)
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{
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metadata.Add(meta);
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if (meta.Id != null)
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pluginsToLoad.Add(meta.Id, meta.Version);
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}
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else if (missingDeps.Any(t => !t.disabled))
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{ // missing deps
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ignoredPlugins.Add(meta, new IgnoreReason(Reason.Dependency)
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{
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ReasonText = $"Missing dependencies {string.Join(", ", missingDeps.Where(t => !t.disabled).Select(t => $"{t.id}@{t.version}").StrJP())}"
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});
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}
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else
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{
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DisabledPlugins.Add(meta);
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DisabledConfig.Instance.DisabledModIds.Add(meta.Id ?? meta.Name);
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}
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}
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DisabledConfig.Instance.Changed();
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PluginsMetadata = metadata;
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}
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internal static void InitFeatures()
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{
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var parsedFeatures = PluginsMetadata.Select(m =>
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(metadata: m,
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features: m.Manifest.Features.Select(feature =>
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(feature, parsed: Ref.Create<Feature.FeatureParse?>(null))
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).ToList()
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)
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).ToList();
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while (DefineFeature.NewFeature)
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{
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DefineFeature.NewFeature = false;
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foreach (var (metadata, features) in parsedFeatures)
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for (var i = 0; i < features.Count; i++)
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{
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var feature = features[i];
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var success = Feature.TryParseFeature(feature.feature, metadata, out var featureObj,
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out var exception, out var valid, out var parsed, feature.parsed.Value);
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if (!success && !valid && featureObj == null && exception == null) // no feature of type found
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feature.parsed.Value = parsed;
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else if (success)
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{
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if (valid && featureObj.StoreOnPlugin)
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metadata.InternalFeatures.Add(featureObj);
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else if (!valid)
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Logger.features.Warn(
|
|
$"Feature not valid on {metadata.Name}: {featureObj.InvalidMessage}");
|
|
features.RemoveAt(i--);
|
|
}
|
|
else
|
|
{
|
|
Logger.features.Error($"Error parsing feature definition on {metadata.Name}");
|
|
Logger.features.Error(exception);
|
|
features.RemoveAt(i--);
|
|
}
|
|
}
|
|
|
|
foreach (var plugin in PluginsMetadata)
|
|
foreach (var feature in plugin.Features)
|
|
feature.Evaluate();
|
|
}
|
|
|
|
foreach (var plugin in parsedFeatures)
|
|
{
|
|
if (plugin.features.Count <= 0) continue;
|
|
|
|
Logger.features.Warn($"On plugin {plugin.metadata.Name}:");
|
|
foreach (var feature in plugin.features)
|
|
Logger.features.Warn($" Feature not found with name {feature.feature}");
|
|
}
|
|
}
|
|
|
|
internal static void ReleaseAll(bool full = false)
|
|
{
|
|
if (full)
|
|
ignoredPlugins = new Dictionary<PluginMetadata, IgnoreReason>();
|
|
else
|
|
{
|
|
foreach (var m in PluginsMetadata)
|
|
ignoredPlugins.Add(m, new IgnoreReason(Reason.Released));
|
|
foreach (var m in ignoredPlugins.Keys)
|
|
{ // clean them up so we can still use the metadata for updates
|
|
m.InternalFeatures.Clear();
|
|
m.PluginType = null;
|
|
m.Assembly = null;
|
|
}
|
|
}
|
|
PluginsMetadata = new List<PluginMetadata>();
|
|
DisabledPlugins = new List<PluginMetadata>();
|
|
Feature.Reset();
|
|
GC.Collect();
|
|
}
|
|
|
|
internal static void Load(PluginMetadata meta)
|
|
{
|
|
if (meta.Assembly == null && meta.PluginType != null)
|
|
meta.Assembly = Assembly.LoadFrom(meta.File.FullName);
|
|
}
|
|
|
|
internal static PluginExecutor InitPlugin(PluginMetadata meta, IEnumerable<PluginMetadata> alreadyLoaded)
|
|
{
|
|
if (meta.Manifest.GameVersion != UnityGame.GameVersion)
|
|
Logger.loader.Warn($"Mod {meta.Name} developed for game version {meta.Manifest.GameVersion}, so it may not work properly.");
|
|
|
|
if (meta.IsSelf)
|
|
return new PluginExecutor(meta, PluginExecutor.Special.Self);
|
|
|
|
foreach (var dep in meta.Dependencies)
|
|
{
|
|
if (alreadyLoaded.Contains(dep)) continue;
|
|
|
|
// otherwise...
|
|
|
|
if (ignoredPlugins.TryGetValue(dep, out var reason))
|
|
{ // was added to the ignore list
|
|
ignoredPlugins.Add(meta, new IgnoreReason(Reason.Dependency)
|
|
{
|
|
ReasonText = $"Dependency was ignored at load time: {reason.ReasonText}",
|
|
RelatedTo = dep
|
|
});
|
|
}
|
|
else
|
|
{ // was not added to ignore list
|
|
ignoredPlugins.Add(meta, new IgnoreReason(Reason.Dependency)
|
|
{
|
|
ReasonText = $"Dependency was not already loaded at load time, but was also not ignored",
|
|
RelatedTo = dep
|
|
});
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
if (meta.IsBare)
|
|
return new PluginExecutor(meta, PluginExecutor.Special.Bare);
|
|
|
|
Load(meta);
|
|
|
|
foreach (var feature in meta.Features)
|
|
{
|
|
if (!feature.BeforeLoad(meta))
|
|
{
|
|
Logger.loader.Warn(
|
|
$"Feature {feature?.GetType()} denied plugin {meta.Name} from loading! {feature?.InvalidMessage}");
|
|
ignoredPlugins.Add(meta, new IgnoreReason(Reason.Feature)
|
|
{
|
|
ReasonText = $"Denied in {nameof(Feature.BeforeLoad)} of feature {feature?.GetType()}:\n\t{feature?.InvalidMessage}"
|
|
});
|
|
return null;
|
|
}
|
|
}
|
|
|
|
PluginExecutor exec;
|
|
try
|
|
{
|
|
exec = new PluginExecutor(meta);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Logger.loader.Error($"Error creating executor for {meta.Name}");
|
|
Logger.loader.Error(e);
|
|
return null;
|
|
}
|
|
|
|
foreach (var feature in meta.Features)
|
|
{
|
|
if (!feature.BeforeInit(meta))
|
|
{
|
|
Logger.loader.Warn(
|
|
$"Feature {feature?.GetType()} denied plugin {meta.Name} from initializing! {feature?.InvalidMessage}");
|
|
ignoredPlugins.Add(meta, new IgnoreReason(Reason.Feature)
|
|
{
|
|
ReasonText = $"Denied in {nameof(Feature.BeforeInit)} of feature {feature?.GetType()}:\n\t{feature?.InvalidMessage}"
|
|
});
|
|
return null;
|
|
}
|
|
}
|
|
|
|
try
|
|
{
|
|
exec.Create();
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Logger.loader.Error($"Could not init plugin {meta.Name}");
|
|
Logger.loader.Error(e);
|
|
ignoredPlugins.Add(meta, new IgnoreReason(Reason.Error)
|
|
{
|
|
ReasonText = "Error ocurred while initializing",
|
|
Error = e
|
|
});
|
|
return null;
|
|
}
|
|
|
|
foreach (var feature in meta.Features)
|
|
try
|
|
{
|
|
feature.AfterInit(meta, exec.Instance);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Logger.loader.Critical($"Feature errored in {nameof(Feature.AfterInit)}: {e}");
|
|
}
|
|
|
|
return exec;
|
|
}
|
|
|
|
internal static List<PluginExecutor> LoadPlugins()
|
|
{
|
|
InitFeatures();
|
|
DisabledPlugins.ForEach(Load); // make sure they get loaded into memory so their metadata and stuff can be read more easily
|
|
|
|
var list = new List<PluginExecutor>();
|
|
var loaded = new HashSet<PluginMetadata>();
|
|
foreach (var meta in PluginsMetadata)
|
|
{
|
|
var exec = InitPlugin(meta, loaded);
|
|
if (exec != null)
|
|
{
|
|
list.Add(exec);
|
|
loaded.Add(meta);
|
|
}
|
|
}
|
|
|
|
return list;
|
|
}
|
|
}
|
|
}
|