stylelint/lib/utils/getModulePath.js

A mighty, modern CSS linter.

/* @flow */
'use strict';

const configurationError = require('./configurationError');
const globalModules = require('global-modules');
const resolveFrom = require('resolve-from');

module.exports = function getModulePath(basedir /*: string*/, lookup /*: string*/) /*: string*/ {
	// 1. Try to resolve from the provided directory
	// 2. Try to resolve from `process.cwd`
	// 3. Try to resolve from global `node_modules` directory
	let path = resolveFrom.silent(basedir, lookup);

	if (!path) {
		path = resolveFrom.silent(process.cwd(), lookup);
	}

	if (!path) {
		path = resolveFrom.silent(globalModules, lookup);
	}

	if (!path) {
		throw configurationError(`Could not find "${lookup}". Do you need a \`configBasedir\`?`);
	}

	return path;
};