63 lines
1.6 KiB
JavaScript
63 lines
1.6 KiB
JavaScript
'use strict';
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var path = require('path');
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var findup = require('findup-sync');
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var merge = require('merge');
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/**
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* Finds all parents node_modules directories and returns them in an array.
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*
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* @param {object} options An object containing objects. Read the readme or
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* the source code.
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*/
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module.exports = function findNodeModules(options) {
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if (typeof options === 'string') {
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options = {
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cwd: options
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};
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}
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options = merge({
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cwd: process.cwd(), // The directory to start the search from
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searchFor: 'node_modules', // I see no reason to change this
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relative: true // If false, returns absolute paths
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}, options);
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var modulesArray = [];
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var searchDir = options.cwd;
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var modulesDir;
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var duplicateFound = false;
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do {
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modulesDir = findup(options.searchFor, { cwd: searchDir });
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if (modulesDir !== null) {
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var foundModulesDir = formatPath(modulesDir, options);
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duplicateFound = (modulesArray.indexOf(foundModulesDir) > -1);
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if (!duplicateFound) {
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modulesArray.push(foundModulesDir);
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searchDir = path.join(modulesDir, '../../');
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}
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}
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} while (modulesDir && !duplicateFound);
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return modulesArray;
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};
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/**
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* Internal function to return either a relative or an absolute path depending
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* on an option. Basically not very useful, could be inline.
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*
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* @param {string} modulesDir The absolute path
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* @param {object} options Options object containing relative boolean and cwd
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* @returns {string} Either an absolute path or a relative path
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* @private
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*/
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function formatPath(modulesDir, options) {
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if (options.relative) {
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return path.relative(options.cwd, modulesDir);
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} else {
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return modulesDir;
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}
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}
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