stylelint/lib/createStylelint.js

A mighty, modern CSS linter.

/* @flow */
'use strict';

const _ = require('lodash');
const augmentConfig = require('./augmentConfig');
const cosmiconfig = require('cosmiconfig');
const createStylelintResult = require('./createStylelintResult');
const getConfigForFile = require('./getConfigForFile');
const getPostcssResult = require('./getPostcssResult');
const isPathIgnored = require('./isPathIgnored');
const lintSource = require('./lintSource');
const path = require('path');

const IS_TEST = process.env.NODE_ENV === 'test';
const STOP_DIR = IS_TEST ? path.resolve(__dirname, '..') : undefined;

// The stylelint "internal API" is passed among functions
// so that methods on a stylelint instance can invoke
// each other while sharing options and caches
module.exports = function(options /*: stylelint$options*/) /*: stylelint$internalApi*/ {
	options = options || {};
	const stylelint /*: Object*/ = { _options: options };

	// Two separate explorers so they can each have their own transform
	// function whose results are cached by cosmiconfig
	stylelint._fullExplorer = cosmiconfig('stylelint', {
		transform: _.partial(augmentConfig.augmentConfigFull, stylelint),
		stopDir: STOP_DIR,
	});
	stylelint._extendExplorer = cosmiconfig(null, {
		transform: _.partial(augmentConfig.augmentConfigExtended, stylelint),
		stopDir: STOP_DIR,
	});

	stylelint._specifiedConfigCache = new Map();
	stylelint._postcssResultCache = new Map();
	stylelint._createStylelintResult = _.partial(createStylelintResult, stylelint);
	stylelint._getPostcssResult = _.partial(getPostcssResult, stylelint);
	stylelint._lintSource = _.partial(lintSource, stylelint);

	stylelint.getConfigForFile = _.partial(getConfigForFile, stylelint);
	stylelint.isPathIgnored = _.partial(isPathIgnored, stylelint);

	return stylelint;
};