feat: add preset parser

* feat: add parserPreset

* chore: use latest npm on appveyor

* chore: reset npm config on appveyor

* style(core): simplify dereferencing

* chore: use correct npm config cmd

* chore: win32, sigh

* chore: upgrade appveyor to node6

@commitlint/cli/cli.js

@@ -23,7 +23,7 @@ const rules = {
 };
 
 const configuration = {
-	string: ['from', 'to', 'extends'],
+	string: ['from', 'to', 'extends', 'parserPreset'],
 	boolean: ['edit', 'help', 'version', 'quiet', 'color'],
 	alias: {
 		c: 'color',
@@ -33,15 +33,17 @@ const configuration = {
 		q: 'quiet',
 		h: 'help',
 		v: 'version',
-		x: 'extends'
+		x: 'extends',
+		p: 'parserPreset'
 	},
 	description: {
 		color: 'toggle colored output',
 		edit: 'read last commit message found in ./git/COMMIT_EDITMSG',
 		extends: 'array of shareable configurations to extend',
 		from: 'lower end of the commit range to lint; applies if edit=false',
 		to: 'upper end of the commit range to lint; applies if edit=false',
-		quiet: 'toggle console output'
+		quiet: 'toggle console output',
+		parserPreset: 'preset parser'
 	},
 	default: {
 		color: true,
@@ -80,7 +82,7 @@ function main(options) {
 		Promise.all(
 			messages.map(commit => {
 				return load(getSeed(flags))
-					.then(opts => core.lint(commit, opts.rules))
+					.then(opts => core.lint(commit, opts.rules, opts))
 					.then(report => {
 						const formatted = core.format(report, {color: flags.color});
 
@@ -106,7 +108,9 @@ function main(options) {
 function getSeed(seed) {
 	const e = Array.isArray(seed.extends) ? seed.extends : [seed.extends];
 	const n = e.filter(i => typeof i === 'string');
-	return n.length > 0 ? {extends: n} : {};
+	return n.length > 0
+		? {extends: n, parserPreset: seed.parserPreset}
+		: {parserPreset: seed.parserPreset};
 }
 
 // Start the engine

@commitlint/core/fixtures/parser-preset/commitlint.config.js

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

@commitlint/core/fixtures/parser-preset/conventional-changelog-custom.js

@@ -0,0 +1,8 @@
+const defaultOpts = require('conventional-changelog-angular');
+const _ = require('lodash');
+
+module.exports = defaultOpts.then(data => {
+	const extented = _.cloneDeep(data);
+	extented.parserOpts.headerPattern = /^(\w*)(?:\((.*)\))?-(.*)$/;
+	return extented;
+});

@commitlint/core/fixtures/recursive-parser-preset/commitlint.config.js

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

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

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

@commitlint/core/fixtures/recursive-parser-preset/first-extended/second-extended/conventional-changelog-custom.js

@@ -0,0 +1,8 @@
+const defaultOpts = require('conventional-changelog-angular');
+const _ = require('lodash');
+
+module.exports = defaultOpts.then(data => {
+	const extented = _.cloneDeep(data);
+	extented.parserOpts.headerPattern = /^(\w*)(?:\((.*)\))?-(.*)$/;
+	return extented;
+});

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

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

@commitlint/core/src/library/parse.js

@@ -1,16 +1,14 @@
 import {sync} from 'conventional-commits-parser';
+import defaultChangelogOpts from 'conventional-changelog-angular';
 
 export default parse;
 
-async function parse(message, parser = sync) {
-	// Prevent conventional-changelog-angular from spamming startup
-	// TODO: Remove when https://github.com/conventional-changelog/conventional-changelog/pull/206 lands
-	const _error = console.error;
-	console.error = () => {};
-	const opts = require('conventional-changelog-angular');
-	console.error = _error;
+async function parse(message, parser = sync, parserOpts) {
+	if (!parserOpts) {
+		const changelogOpts = await defaultChangelogOpts;
+		parserOpts = changelogOpts.parserOpts;
+	}
 
-	const {parserOpts} = await opts;
 	const parsed = parser(message, parserOpts);
 	parsed.raw = message;
 	return parsed;

@commitlint/core/src/library/parse.test.js

@@ -1,3 +1,4 @@
+import importFrom from 'import-from';
 import test from 'ava';
 import parse from './parse';
 
@@ -71,6 +72,30 @@ test('uses angular grammar', async t => {
 	t.deepEqual(actual, expected);
 });
 
+test('uses custom opts parser', async t => {
+	const message = 'type(scope)-subject';
+	const changelogOpts = await importFrom(
+		process.cwd(),
+		'./fixtures/parser-preset/conventional-changelog-custom'
+	);
+	const actual = await parse(message, undefined, changelogOpts.parserOpts);
+	const expected = {
+		body: null,
+		footer: null,
+		header: 'type(scope)-subject',
+		mentions: [],
+		merge: null,
+		notes: [],
+		raw: 'type(scope)-subject',
+		references: [],
+		revert: null,
+		scope: 'scope',
+		subject: 'subject',
+		type: 'type'
+	};
+	t.deepEqual(actual, expected);
+});
+
 test('supports scopes with /', async t => {
 	const message = 'type(some/scope): subject';
 	const actual = await parse(message);

@commitlint/core/src/library/resolve-extends.js

@@ -38,6 +38,10 @@ function loadExtends(config = {}, context = {}) {
 			cwd: path.dirname(resolved)
 		});
 
+		if (c && c.parserPreset) {
+			c.parserPreset = resolveId(c.parserPreset, ctx);
+		}
+
 		return [...configs, c, ...loadExtends(c, ctx)];
 	}, []);
 }

@commitlint/core/src/lint.js

@@ -3,7 +3,7 @@ import isIgnored from './library/is-ignored';
 import parse from './library/parse';
 import implementations from './rules';
 
-export default async (message, rules = {}) => {
+export default async (message, rules = {}, opts = {}) => {
 	// Found a wildcard match, skip
 	if (isIgnored(message)) {
 		return {
@@ -14,7 +14,7 @@ export default async (message, rules = {}) => {
 	}
 
 	// Parse the commit message
-	const parsed = await parse(message);
+	const parsed = await parse(message, undefined, opts.parserOpts);
 
 	// Validate against all rules
 	const results = entries(rules)

@commitlint/core/src/lint.test.js

@@ -34,3 +34,19 @@ test('positive on ignored message and broken rule', async t => {
 	});
 	t.true(actual.valid);
 });
+
+test('positive on stub message and opts', async t => {
+	const actual = await lint(
+		'foo-bar',
+		{
+			'type-enum': [2, 'always', ['foo']],
+			'type-empty': [2, 'never']
+		},
+		{
+			parserOpts: {
+				headerPattern: /^(\w*)(?:\((.*)\))?-(.*)$/
+			}
+		}
+	);
+	t.true(actual.valid);
+});

@commitlint/core/src/load.js

@@ -8,7 +8,7 @@ import resolveExtends from './library/resolve-extends';
 import executeRule from './library/execute-rule';
 
 const w = (a, b) => (Array.isArray(b) ? b : undefined);
-const valid = input => pick(input, 'extends', 'rules');
+const valid = input => pick(input, 'extends', 'rules', 'parserPreset');
 
 export default async (seed = {}) => {
 	// Obtain config from .rc files
@@ -24,7 +24,11 @@ export default async (seed = {}) => {
 		cwd: raw.config ? path.dirname(raw.config) : process.cwd()
 	});
 
-	const preset = valid(mergeWith({}, extended, config, w));
+	const preset = valid(mergeWith(extended, config, w));
+
+	if (preset.parserPreset) {
+		preset.parserOpts = await importFrom(process.cwd(), preset.parserPreset);
+	}
 
 	// Execute rule config functions if needed
 	const executed = await Promise.all(

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

@@ -21,6 +21,12 @@ test('uses seed as configured', async t => {
 	t.is(actual.rules.foo, 'bar');
 });
 
+test('uses seed with parserPreset', async t => {
+	t.context.back = chdir('fixtures/parser-preset');
+	const actual = await load({parserPreset: './conventional-changelog-custom'});
+	t.truthy(actual.parserOpts);
+});
+
 test('invalid extend should throw', t => {
 	t.context.back = chdir('fixtures/extends-invalid');
 	t.throws(load());
@@ -51,6 +57,12 @@ test('recursive extends', async t => {
 	});
 });
 
+test('recursive extends with parserPreset', async t => {
+	t.context.back = chdir('fixtures/recursive-parser-preset');
+	const actual = await load();
+	t.truthy(actual.parserOpts);
+});
+
 test('ignores unknow keys', async t => {
 	t.context.back = chdir('fixtures/trash-file');
 	const actual = await load();

appveyor.yml

@@ -1,10 +1,9 @@
 environment:
   matrix:
-    - nodejs_version: '4'
+    - nodejs_version: '6'
 install:
   - ps: Install-Product node $env:nodejs_version
   - set CI=true
-  - npm install -g npm@4
   - set PATH=%APPDATA%\npm;%PATH%
   - npm install
 matrix: