fix: rollback some unnecessary changes

@commitlint/resolve-extends/src/index.test.ts

@@ -493,3 +493,39 @@ test('parserPreset should be merged correctly', () => {
 
 	expect(actual).toEqual(expected);
 });
+
+test('should correctly merge nested configs', () => {
+	const input = {extends: ['extender-1']};
+
+	const require = (id: string) => {
+		switch (id) {
+			case 'extender-1':
+				return {extends: ['extender-3', 'extender-2']};
+			case 'extender-2':
+				return {extends: ['extender-4']};
+			case 'extender-3':
+				return {rules: {test: 3}};
+			case 'extender-4':
+				return {extends: ['extender-5', 'extender-6'], rules: {test: 4}};
+			case 'extender-5':
+				return {rules: {test: 5}};
+			case 'extender-6':
+				return {rules: {test: 6}};
+			default:
+				return {};
+		}
+	};
+
+	const ctx = {resolve: id, require: jest.fn(require)} as ResolveExtendsContext;
+
+	const actual = resolveExtends(input, ctx);
+
+	const expected = {
+		extends: ['extender-1'],
+		rules: {
+			test: 4,
+		},
+	};
+
+	expect(actual).toEqual(expected);
+});

@commitlint/resolve-extends/src/index.ts

@@ -55,7 +55,7 @@ function loadExtends(
 	const {extends: e} = config;
 	const ext = e ? (Array.isArray(e) ? e : [e]) : [];
 
-	return ext.reduceRight<ResolvedConfig[]>((configs, raw) => {
+	return ext.reduce<ResolvedConfig[]>((configs, raw) => {
 		const load = context.require || require;
 		const resolved = resolveConfig(raw, context);
 		const c = load(resolved);
@@ -81,7 +81,7 @@ function loadExtends(
 			config.parserPreset = parserPreset;
 		}
 
-		return [...loadExtends(c, ctx), c, ...configs];
+		return [...configs, ...loadExtends(c, ctx), c];
 	}, []);
 }