[Fusion] Allow disabling schema validation during preprocessing

src/HotChocolate/Fusion-vnext/src/Fusion.Composition/Options/SourceSchemaPreprocessorOptions.cs

@@ -5,6 +5,11 @@ namespace HotChocolate.Fusion.Options;
 /// </summary>
 public sealed class SourceSchemaPreprocessorOptions
 {
+    /// <summary>
+    /// Enables schema validation when preprocessing source schemas.
+    /// </summary>
+    public bool EnableSchemaValidation { get; set; } = true;
+
     /// <summary>
     /// A list of tags used to exclude type system members from composition.
     /// Any members annotated with these tags will be excluded.

src/HotChocolate/Fusion-vnext/src/Fusion.Composition/SourceSchemaPreprocessor.cs

@@ -59,10 +59,13 @@ public CompositionResult Preprocess()
         }
 
         // Additional schema validation will catch issues introduced during preprocessing.
-        var validationLog = new ValidationLog();
-        if (!new SchemaValidator().Validate(schema, validationLog) && validationLog.HasErrors)
+        if (_options.EnableSchemaValidation)
         {
-            log.WriteValidationLog(validationLog, schema);
+            var validationLog = new ValidationLog();
+            if (!new SchemaValidator().Validate(schema, validationLog) && validationLog.HasErrors)
+            {
+                log.WriteValidationLog(validationLog, schema);
+            }
         }
 
         return log.HasErrors

src/Nitro/CommandLine/src/CommandLine/Extensions/SettingsExtensions.cs

@@ -125,6 +125,11 @@ private SourceSchemaPreprocessorOptions ToOptions()
         {
             var preprocessorOptions = new SourceSchemaPreprocessorOptions();
 
+            if (preprocessorSettings.EnableSchemaValidation is { } enableSchemaValidation)
+            {
+                preprocessorOptions.EnableSchemaValidation = enableSchemaValidation;
+            }
+
             if (preprocessorSettings.InferKeysFromLookups is { } inferKeys)
             {
                 preprocessorOptions.InferKeysFromLookups = inferKeys;

src/Nitro/CommandLine/src/CommandLine/Settings/SourceSchemaSettings.cs

@@ -19,6 +19,8 @@ internal sealed record ParserSettings
 
     internal sealed record PreprocessorSettings
     {
+        public bool? EnableSchemaValidation { get; init; }
+
         public bool? InferKeysFromLookups { get; init; }
 
         public bool? InheritInterfaceKeys { get; init; }