Cleaned up scripts project

Resources/Scripts/Helpers/CodeHelper.cs

@@ -0,0 +1,73 @@
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.Extensions.Logging;
+
+namespace Scripts.Helpers;
+
+public class CodeHelper
+{
+    private readonly ILogger<CodeHelper> Logger;
+
+    public CodeHelper(ILogger<CodeHelper> logger)
+    {
+        Logger = logger;
+    }
+
+    public async Task<string[]> FindPluginStartups(string[] filesToSearch)
+    {
+        var result = new List<string>();
+        
+        var mscorlib = MetadataReference.CreateFromFile(typeof(object).Assembly.Location);
+
+        var trees = new List<SyntaxTree>();
+
+        foreach (var file in filesToSearch)
+        {
+            Logger.LogDebug("Reading {file}", file);
+
+            var content = await File.ReadAllTextAsync(file);
+            var tree = CSharpSyntaxTree.ParseText(content);
+            trees.Add(tree);
+        }
+
+        var compilation = CSharpCompilation.Create("Analysis", trees, [mscorlib]);
+
+        foreach (var tree in trees)
+        {
+            var model = compilation.GetSemanticModel(tree);
+            var root = await tree.GetRootAsync();
+
+            var classDeclarations = root
+                .DescendantNodes()
+                .OfType<ClassDeclarationSyntax>();
+
+            foreach (var classDeclaration in classDeclarations)
+            {
+                var symbol = model.GetDeclaredSymbol(classDeclaration);
+
+                if (symbol == null)
+                    continue;
+
+                var hasAttribute = symbol.GetAttributes().Any(attr =>
+                {
+                    if (attr.AttributeClass == null)
+                        return false;
+
+                    return attr.AttributeClass.Name == "PluginStartup";
+                });
+
+                if (!hasAttribute)
+                    continue;
+
+                var classPath = $"{symbol.ContainingNamespace.ToDisplayString()}.{classDeclaration.Identifier.ValueText}";
+                
+                Logger.LogInformation("Detected startup in class: {classPath}", classPath);
+                
+                result.Add(classPath);
+            }
+        }
+        
+        return result.ToArray();
+    }
+}