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686 lines
26 KiB
686 lines
26 KiB
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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#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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public class PluginLoader
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{
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internal static Task LoadTask() => Task.Factory.StartNew(() =>
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{
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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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/// <summary>
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/// A class which describes a loaded plugin.
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/// </summary>
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public class PluginMetadata
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{
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/// <summary>
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/// The assembly the plugin was loaded from.
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/// </summary>
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/// <value>the loaded Assembly that contains the plugin main type</value>
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public Assembly Assembly { get; internal set; }
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/// <summary>
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/// The TypeDefinition for the main type of the plugin.
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/// </summary>
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/// <value>the Cecil definition for the plugin main type</value>
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public TypeDefinition PluginType { get; internal set; }
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/// <summary>
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/// The human readable name of the plugin.
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/// </summary>
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/// <value>the name of the plugin</value>
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public string Name { get; internal set; }
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/// <summary>
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/// The BeatMods ID of the plugin, or null if it doesn't have one.
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/// </summary>
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/// <value>the updater ID of the plugin</value>
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public string Id { get; internal set; }
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/// <summary>
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/// The version of the plugin.
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/// </summary>
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/// <value>the version of the plugin</value>
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public Version Version { get; internal set; }
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/// <summary>
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/// The file the plugin was loaded from.
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/// </summary>
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/// <value>the file the plugin was loaded from</value>
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public FileInfo File { get; internal set; }
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// ReSharper disable once UnusedAutoPropertyAccessor.Global
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/// <summary>
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/// The features this plugin requests.
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/// </summary>
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/// <value>the list of features requested by the plugin</value>
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public IReadOnlyList<Feature> Features => InternalFeatures;
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internal readonly List<Feature> InternalFeatures = new List<Feature>();
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internal bool IsSelf;
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/// <summary>
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/// Whether or not this metadata object represents a bare manifest.
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/// </summary>
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/// <value><see langword="true"/> if it is bare, <see langword="false"/> otherwise</value>
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public bool IsBare { get; internal set; }
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private PluginManifest manifest;
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internal HashSet<PluginMetadata> Dependencies { get; } = new HashSet<PluginMetadata>();
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internal PluginManifest Manifest
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{
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get => manifest;
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set
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{
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manifest = value;
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Name = value.Name;
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Version = value.Version;
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Id = value.Id;
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}
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}
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/// <summary>
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/// Gets all of the metadata as a readable string.
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/// </summary>
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/// <returns>the readable printable metadata string</returns>
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public override string ToString() => $"{Name}({Id}@{Version})({PluginType?.FullName}) from '{Utils.GetRelativePath(File?.FullName, BeatSaber.InstallPath)}'";
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}
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/// <summary>
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/// A container object for all the data relating to a plugin.
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/// </summary>
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public class PluginInfo
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{
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internal IBeatSaberPlugin Plugin { get; set; }
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/// <summary>
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/// Metadata for the plugin.
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/// </summary>
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/// <value>the metadata for this plugin</value>
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public PluginMetadata Metadata { get; internal set; } = new PluginMetadata();
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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(BeatSaber.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(BeatSaber.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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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(BeatSaber.PluginsPath, plugin)),
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IsSelf = false
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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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var iBeatSaberPlugin = pluginModule.ImportReference(typeof(IBeatSaberPlugin));
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foreach (var type in pluginModule.Types)
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{
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foreach (var inter in type.Interfaces)
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{
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var ifType = inter.InterfaceType;
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if (iBeatSaberPlugin.FullName == ifType.FullName)
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{
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metadata.PluginType = type;
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break;
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}
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}
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if (metadata.PluginType != null) break;
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}
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if (metadata.PluginType == null)
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{
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Logger.loader.Notice(
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#if DIRE_LOADER_WARNINGS
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$"Could not find plugin type for {Path.GetFileName(plugin)}"
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#else
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$"New plugin type not present in {Path.GetFileName(plugin)}; maybe an old plugin?"
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#endif
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);
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continue;
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}
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foreach (var resource in pluginModule.Resources)
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{
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if (!(resource is EmbeddedResource embedded) ||
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embedded.Name != $"{metadata.PluginType.Namespace}.manifest.json") continue;
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string manifest;
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using (var manifestReader = new StreamReader(embedded.GetResourceStream()))
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manifest = manifestReader.ReadToEnd();
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metadata.Manifest = JsonConvert.DeserializeObject<PluginManifest>(manifest);
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break;
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}
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if (metadata.Manifest == null)
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{
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Logger.loader.Error("Could not find manifest.json in namespace " +
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$"{metadata.PluginType.Namespace} for {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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}
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}
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IEnumerable<string> bareManifests = Directory.GetFiles(BeatSaber.PluginsPath, "*.json");
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bareManifests = bareManifests.Concat(Directory.GetFiles(BeatSaber.PluginsPath, "*.manifest"));
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foreach (var manifest in bareManifests)
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{
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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(BeatSaber.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($"Bare manifest cannot specify description file");
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meta.Manifest.Description = string.Join("\n", lines.Skip(1).StrJP()); // ignore first line
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continue;
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}
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var name = m.Groups[1].Value;
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string description;
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if (!meta.IsSelf)
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{
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var resc = meta.PluginType.Module.Resources.Select(r => r as EmbeddedResource)
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.Where(r => r != null)
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.FirstOrDefault(r => r.Name == name);
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if (resc == null)
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{
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Logger.loader.Warn($"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 =
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new StreamReader(
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meta.Assembly.GetManifestResourceStream(name) ??
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throw new InvalidOperationException()))
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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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// keep track of these for the updater; it should still be able to update mods not loaded
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// TODO: add ignore reason
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internal static HashSet<PluginMetadata> ignoredPlugins = new HashSet<PluginMetadata>();
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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 HashSet<PluginMetadata>();
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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($"Found duplicates of {meta.Id}, using newest");
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ignore.Add(meta);
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ignoredPlugins.Add(meta);
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continue; // because of sorted order, hightest order will always be the first one
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}
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bool processedLater = false;
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foreach (var meta2 in PluginsMetadata)
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{
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if (ignore.Contains(meta2)) continue;
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if (meta == meta2)
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{
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processedLater = true;
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continue;
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}
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if (!meta2.Manifest.Conflicts.ContainsKey(meta.Id)) continue;
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var range = meta2.Manifest.Conflicts[meta.Id];
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if (!range.IsSatisfied(meta.Version)) continue;
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Logger.loader.Warn($"{meta.Id}@{meta.Version} conflicts with {meta2.Name}");
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if (processedLater)
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{
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Logger.loader.Warn($"Ignoring {meta2.Name}");
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ignore.Add(meta2);
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}
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else
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{
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Logger.loader.Warn($"Ignoring {meta.Name}");
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ignore.Add(meta);
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break;
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}
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}
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}
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if (ignore.Contains(meta))
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{
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ignoredPlugins.Add(meta);
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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.Ref.Value.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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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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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.Where(m => m.Id != null).ToDictionary(m => m.Id, m => m.Version);
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foreach (var meta in PluginsMetadata)
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{
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bool load = true;
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bool disable = false;
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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($"Looking for dependency {dep.Key} with version range {dep.Value.Intersect(new SemVer.Range("*.*.*"))}");
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#endif
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if (pluginsToLoad.ContainsKey(dep.Key) && dep.Value.IsSatisfied(pluginsToLoad[dep.Key]))
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continue;
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load = false;
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if (disabledLookup.ContainsKey(dep.Key) && dep.Value.IsSatisfied(disabledLookup[dep.Key]))
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{
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disable = true;
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Logger.loader.Warn($"Dependency {dep.Key} was found, but disabled. Disabling {meta.Name} too.");
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}
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else
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Logger.loader.Warn($"{meta.Name} is missing dependency {dep.Key}@{dep.Value}");
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break;
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}
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if (load)
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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 (disable)
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{
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DisabledPlugins.Add(meta);
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DisabledConfig.Ref.Value.DisabledModIds.Add(meta.Id ?? meta.Name);
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}
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else
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ignoredPlugins.Add(meta);
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}
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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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Tuple.Create(m,
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m.Manifest.Features.Select(f =>
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Tuple.Create(f, 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 plugin in parsedFeatures)
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for (var i = 0; i < plugin.Item2.Count; i++)
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{
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var feature = plugin.Item2[i];
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var success = Feature.TryParseFeature(feature.Item1, plugin.Item1, out var featureObj,
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out var exception, out var valid, out var parsed, feature.Item2.Value);
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if (!success && !valid && featureObj == null && exception == null) // no feature of type found
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feature.Item2.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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plugin.Item1.InternalFeatures.Add(featureObj);
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else if (!valid)
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Logger.features.Warn(
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$"Feature not valid on {plugin.Item1.Name}: {featureObj.InvalidMessage}");
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plugin.Item2.RemoveAt(i--);
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}
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else
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{
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Logger.features.Error($"Error parsing feature definition on {plugin.Item1.Name}");
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Logger.features.Error(exception);
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plugin.Item2.RemoveAt(i--);
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}
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}
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foreach (var plugin in PluginsMetadata)
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foreach (var feature in plugin.Features)
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feature.Evaluate();
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}
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foreach (var plugin in parsedFeatures)
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{
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if (plugin.Item2.Count <= 0) continue;
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Logger.features.Warn($"On plugin {plugin.Item1.Name}:");
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foreach (var feature in plugin.Item2)
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Logger.features.Warn($" Feature not found with name {feature.Item1}");
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}
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}
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internal static void ReleaseAll(bool full = false)
|
|
{
|
|
if (full)
|
|
ignoredPlugins = new HashSet<PluginMetadata>();
|
|
else
|
|
{
|
|
foreach (var m in PluginsMetadata)
|
|
ignoredPlugins.Add(m);
|
|
foreach (var m in ignoredPlugins)
|
|
{ // clean them up so we can still use the metadata for updates
|
|
m.InternalFeatures.Clear();
|
|
m.PluginType = null;
|
|
m.Assembly = null;
|
|
}
|
|
}
|
|
PluginsMetadata = new List<PluginMetadata>();
|
|
DisabledPlugins = new List<PluginMetadata>();
|
|
Feature.Reset();
|
|
GC.Collect();
|
|
}
|
|
|
|
internal static void Load(PluginMetadata meta)
|
|
{
|
|
if (meta.Assembly == null && meta.PluginType != null)
|
|
meta.Assembly = Assembly.LoadFrom(meta.File.FullName);
|
|
}
|
|
|
|
internal static PluginInfo InitPlugin(PluginMetadata meta)
|
|
{
|
|
if (meta.PluginType == null)
|
|
return new PluginInfo()
|
|
{
|
|
Metadata = meta,
|
|
Plugin = null
|
|
};
|
|
|
|
var info = new PluginInfo();
|
|
|
|
if (meta.Manifest.GameVersion != BeatSaber.GameVersion)
|
|
Logger.loader.Warn($"Mod {meta.Name} developed for game version {meta.Manifest.GameVersion}, so it may not work properly.");
|
|
|
|
try
|
|
{
|
|
Load(meta);
|
|
|
|
Feature denyingFeature = null;
|
|
if (!meta.Features.All(f => (denyingFeature = f).BeforeLoad(meta)))
|
|
{
|
|
Logger.loader.Warn(
|
|
$"Feature {denyingFeature?.GetType()} denied plugin {meta.Name} from loading! {denyingFeature?.InvalidMessage}");
|
|
ignoredPlugins.Add(meta);
|
|
return null;
|
|
}
|
|
|
|
var type = meta.Assembly.GetType(meta.PluginType.FullName);
|
|
var instance = (IBeatSaberPlugin)Activator.CreateInstance(type);
|
|
|
|
info.Metadata = meta;
|
|
info.Plugin = instance;
|
|
|
|
var init = type.GetMethod("Init", BindingFlags.Instance | BindingFlags.Public);
|
|
if (init != null)
|
|
{
|
|
denyingFeature = null;
|
|
if (!meta.Features.All(f => (denyingFeature = f).BeforeInit(info)))
|
|
{
|
|
Logger.loader.Warn(
|
|
$"Feature {denyingFeature?.GetType()} denied plugin {meta.Name} from initializing! {denyingFeature?.InvalidMessage}");
|
|
ignoredPlugins.Add(meta);
|
|
return null;
|
|
}
|
|
|
|
PluginInitInjector.Inject(init, info);
|
|
}
|
|
|
|
foreach (var feature in meta.Features)
|
|
try
|
|
{
|
|
feature.AfterInit(info, info.Plugin);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Logger.loader.Critical($"Feature errored in {nameof(Feature.AfterInit)}: {e}");
|
|
}
|
|
|
|
if (instance is IDisablablePlugin disable)
|
|
try // TODO: move this out to after all plugins have been inited
|
|
{
|
|
disable.OnEnable();
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Logger.loader.Error($"Error occurred trying to enable {meta.Name}");
|
|
Logger.loader.Error(e);
|
|
}
|
|
}
|
|
catch (AmbiguousMatchException)
|
|
{
|
|
Logger.loader.Error($"Only one Init allowed per plugin (ambiguous match in {meta.Name})");
|
|
// not adding to ignoredPlugins here because this should only happen in a development context
|
|
// if someone fucks this up on release thats on them
|
|
return null;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Logger.loader.Error($"Could not init plugin {meta.Name}: {e}");
|
|
ignoredPlugins.Add(meta);
|
|
return null;
|
|
}
|
|
|
|
return info;
|
|
}
|
|
|
|
internal static List<PluginInfo> LoadPlugins()
|
|
{
|
|
InitFeatures();
|
|
DisabledPlugins.ForEach(Load); // make sure they get loaded into memory so their metadata and stuff can be read more easily
|
|
return PluginsMetadata.Select(InitPlugin).Where(p => p != null).ToList();
|
|
}
|
|
}
|
|
}
|