Source generate the license file loading

AssetRipper.sln

@@ -162,6 +162,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AssetRipper.SmartEnums", "S
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AssetRipper.Processing.SourceGenerator", "Source\AssetRipper.Processing.SourceGenerator\AssetRipper.Processing.SourceGenerator.csproj", "{6679D5D0-8D40-44AC-9D20-0FD1303D45A2}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AssetRipper.GUI.Licensing.SourceGenerator", "Source\AssetRipper.GUI.Licensing.SourceGenerator\AssetRipper.GUI.Licensing.SourceGenerator.csproj", "{6B3DD564-FD57-4EAA-8696-A15A5A6FFF29}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -340,6 +342,10 @@ Global
 		{6679D5D0-8D40-44AC-9D20-0FD1303D45A2}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6679D5D0-8D40-44AC-9D20-0FD1303D45A2}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{6679D5D0-8D40-44AC-9D20-0FD1303D45A2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6B3DD564-FD57-4EAA-8696-A15A5A6FFF29}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6B3DD564-FD57-4EAA-8696-A15A5A6FFF29}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6B3DD564-FD57-4EAA-8696-A15A5A6FFF29}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6B3DD564-FD57-4EAA-8696-A15A5A6FFF29}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Source/AssetRipper.GUI.Licensing.SourceGenerator/AssetRipper.GUI.Licensing.SourceGenerator.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<TargetFramework>netstandard2.0</TargetFramework>
+		<IsAotCompatible>false</IsAotCompatible>
+		<AppendTargetFrameworkToOutputPath>true</AppendTargetFrameworkToOutputPath>
+		<EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0">
+			<PrivateAssets>all</PrivateAssets>
+			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
+		<PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.13.0" />
+		<PackageReference Include="SourceGenerator.Foundations" Version="2.0.13" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<!-- Generator dependencies -->
+		<PackageReference Include="AssetRipper.Text.SourceGeneration" Version="1.2.2" PrivateAssets="all" GeneratePathProperty="true" />
+	</ItemGroup>
+
+</Project>

Source/AssetRipper.GUI.Licensing.SourceGenerator/LicensesGenerator.cs

@@ -0,0 +1,86 @@
+using AssetRipper.Text.SourceGeneration;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using SGF;
+using System.CodeDom.Compiler;
+using System.Collections.Immutable;
+
+namespace AssetRipper.GUI.Licensing.SourceGenerator;
+
+[IncrementalGenerator]
+public sealed class LicensesGenerator() : IncrementalGenerator(nameof(LicensesGenerator))
+{
+	public override void OnInitialize(SgfInitializationContext context)
+	{
+		IncrementalValueProvider<ImmutableArray<(string Name, string License)>> pipeline = context.AdditionalTextsProvider
+			.Where(static (text) => text.Path.EndsWith(".md"))
+			.Select(static (text, cancellationToken) =>
+			{
+				string name = Path.GetFileNameWithoutExtension(text.Path);
+				string? license = text.GetText(cancellationToken)?.ToString();
+				return (name, license);
+			})
+			.Where(static (pair) => pair.license != null)
+			.Collect()!;
+
+		context.RegisterSourceOutput(pipeline, GenerateCode);
+	}
+
+	private static void GenerateCode(SgfSourceProductionContext context, ImmutableArray<(string Name, string License)> array)
+	{
+		using StringWriter stringWriter = new();
+		using IndentedTextWriter writer = IndentedTextWriterFactory.Create(stringWriter);
+
+		writer.WriteGeneratedCodeWarning();
+		writer.WriteLineNoTabs();
+
+		writer.WriteLine("#nullable enable");
+		writer.WriteLineNoTabs();
+		writer.WriteFileScopedNamespace("AssetRipper.GUI.Licensing");
+		writer.WriteLineNoTabs();
+		writer.WriteLine("partial class Licenses");
+		using (new CurlyBrackets(writer))
+		{
+			List<(string, string)> sourceNames = new(array.Length);
+			foreach ((string name, string license) in array.OrderBy(pair => pair.Name))
+			{
+				string sourceName = name.Replace('.', '_').Replace('-', '_');
+				sourceNames.Add((name, sourceName));
+				writer.WriteLine($"private static global::System.ReadOnlySpan<byte> {sourceName}_span => {SymbolDisplay.FormatLiteral(license, true)}u8;");
+				writer.WriteLine($"private static string? {sourceName}_field;");
+				if (name != sourceName)
+				{
+					writer.WriteSummaryDocumentation(name);
+				}
+				writer.WriteLine($"public static string {sourceName} => {sourceName}_field ??= global::System.Text.Encoding.UTF8.GetString({sourceName}_span);");
+				writer.WriteLineNoTabs();
+			}
+
+			// Names list
+			writer.WriteLine("public static global::System.Collections.Generic.IReadOnlyList<string> Names { get; } =");
+			writer.WriteLine('[');
+			using (new Indented(writer))
+			{
+				foreach ((string name, _) in sourceNames)
+				{
+					writer.WriteLine($"{SymbolDisplay.FormatLiteral(name, true)},");
+				}
+			}
+			writer.WriteLine("];");
+			writer.WriteLineNoTabs();
+
+			// Get method
+			writer.WriteLine("public static string? TryLoad(string name) => name switch");
+			using (new CurlyBracketsWithSemicolon(writer))
+			{
+				foreach ((string name, string sourceName) in sourceNames)
+				{
+					writer.WriteLine($"{SymbolDisplay.FormatLiteral(name, true)} => {sourceName},");
+				}
+				writer.WriteLine($"_ => null,");
+			}
+		}
+
+		context.AddSource("Licenses.g.cs", stringWriter.ToString());
+	}
+}

Source/AssetRipper.GUI.Licensing/AssetRipper.GUI.Licensing.csproj

@@ -4,11 +4,16 @@
 		<IsTrimmable>true</IsTrimmable>
 		<OutputPath>..\0Bins\Other\AssetRipper.GUI.Licensing\$(Configuration)\</OutputPath>
 		<IntermediateOutputPath>..\0Bins\obj\AssetRipper.GUI.Licensing\$(Configuration)\</IntermediateOutputPath>
+		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
 	</PropertyGroup>
 
 	<ItemGroup>
 		<None Remove="..\Licenses\*.md" />
-		<EmbeddedResource Include="..\Licenses\*.md" />
+		<AdditionalFiles Include="..\Licenses\*.md" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<ProjectReference Include="..\AssetRipper.GUI.Licensing.SourceGenerator\AssetRipper.GUI.Licensing.SourceGenerator.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
 	</ItemGroup>
 
 </Project>

Source/AssetRipper.GUI.Licensing/Licenses.cs

@@ -1,42 +1,24 @@
-using System.Reflection;
+namespace AssetRipper.GUI.Licensing;
 
-namespace AssetRipper.GUI.Licensing;
+public static partial class Licenses
-
-public static class Licenses
 {
-	private const string FilePrefix = "AssetRipper.GUI.Licensing.";
-
-	private static Assembly Assembly => typeof(Licenses).Assembly;
-
-	public static IReadOnlyList<string> Names { get; } = Assembly
-		.GetManifestResourceNames()
-		.Select(t => t.Substring(FilePrefix.Length, t.Length - FilePrefix.Length - 3))
-		.ToArray();
-
 	/// <summary>
-	/// Load a license file from the embedded resources.
+	/// Load a license file.
 	/// </summary>
-	/// <param name="fileName">The name of the file without any extension.</param>
+	/// <param name="name">The name of the license (without any extension).</param>
 	/// <returns>The loaded text.</returns>
-	public static string Load(string fileName)
+	public static string Load(string name)
 	{
-		if (TryLoad(fileName, out string? license))
+		if (TryLoad(name, out string? license))
 		{
 			return license;
 		}
-		throw new LicenseNotFoundException(fileName);
+		throw new LicenseNotFoundException(name);
 	}
 
-	public static bool TryLoad(string fileName, [NotNullWhen(true)] out string? license)
+	public static bool TryLoad(string name, [NotNullWhen(true)] out string? license)
 	{
-		using Stream? stream = Assembly.GetManifestResourceStream(FilePrefix + fileName + ".md");
+		license = TryLoad(name);
-		if (stream is null)
+		return license is not null;
-		{
-			license = null;
-			return false;
-		}
-
-		license = new StreamReader(stream).ReadToEnd();
-		return true;
 	}
 }