fix(load): resolve nested parser preset factories (conventional-changelog#831)

* test: add failing testcase for nested parser preset factories

* fix(load): resolve nested parser preset factories

* refactor(load): remove old console log statement

* refactor(load): remove extraneous white line

Author: byCedric

@commitlint/load/fixtures/recursive-parser-preset-factory/commitlint.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+	extends: ['./first-extended']
+};

@commitlint/load/fixtures/recursive-parser-preset-factory/first-extended/index.js

@@ -0,0 +1,3 @@
+module.exports = {
+	extends: ['./second-extended']
+};

@commitlint/load/fixtures/recursive-parser-preset-factory/first-extended/second-extended/conventional-changelog-factory.js

@@ -0,0 +1,10 @@
+module.exports = Promise.resolve().then(
+	() =>
+		function factory() {
+			return {
+				parserOpts: {
+					headerPattern: /^(\w*)(?:\((.*)\))?-(.*)$/
+				}
+			};
+		}
+);

@commitlint/load/fixtures/recursive-parser-preset-factory/first-extended/second-extended/index.js

@@ -0,0 +1,3 @@
+module.exports = {
+	parserPreset: './conventional-changelog-factory'
+};

@commitlint/load/src/index.js

@@ -30,12 +30,12 @@ export default async (seed = {}, options = {cwd: process.cwd()}) => {
 		pick(config, 'extends', 'plugins', 'ignores', 'defaultIgnores')
 	);
 
-	// Resolve parserPreset key
+	// Resolve parserPreset key from flat-non-extended config
 	if (typeof config.parserPreset === 'string') {
 		const resolvedParserPreset = resolveFrom(base, config.parserPreset);
 		let resolvedParserConfig = await require(resolvedParserPreset);
 
-		// Resolve loaded parser preset if its a factory
+		// Resolve loaded parser preset factory
 		if (typeof resolvedParserConfig === 'function') {
 			resolvedParserConfig = await resolvedParserConfig();
 		}
@@ -61,8 +61,14 @@ export default async (seed = {}, options = {cwd: process.cwd()}) => {
 		typeof preset.parserPreset.parserOpts === 'object' &&
 		typeof preset.parserPreset.parserOpts.then === 'function'
 	) {
-		preset.parserPreset.parserOpts = (await preset.parserPreset
-			.parserOpts).parserOpts;
+		let parserPreset = await preset.parserPreset.parserOpts;
+
+		// Resolve loaded parser preset factory from extended config
+		if (typeof parserPreset === 'function') {
+			parserPreset = await parserPreset();
+		}
+
+		preset.parserPreset.parserOpts = parserPreset.parserOpts;
 	}
 
 	// Resolve config-relative formatter module

@commitlint/load/src/index.test.js

@@ -228,6 +228,16 @@ test('recursive extends with parserPreset', async t => {
 	);
 });
 
+test('recursive extends with parserPreset factory', async t => {
+	const cwd = await git.bootstrap('fixtures/recursive-parser-preset-factory');
+	const actual = await load({}, {cwd});
+
+	t.is(actual.parserPreset.name, './conventional-changelog-factory');
+	t.deepEqual(actual.parserPreset.parserOpts, {
+		headerPattern: /^(\w*)(?:\((.*)\))?-(.*)$/
+	});
+});
+
 test('ignores unknow keys', async t => {
 	const cwd = await git.bootstrap('fixtures/trash-file');
 	const actual = await load({}, {cwd});