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46 lines
1.3 KiB
46 lines
1.3 KiB
/** |
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* @fileoverview Module for loading rules from files and directories. |
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* @author Michael Ficarra |
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*/ |
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"use strict"; |
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//------------------------------------------------------------------------------ |
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// Requirements |
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//------------------------------------------------------------------------------ |
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const fs = require("fs"), |
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path = require("path"); |
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const rulesDirCache = {}; |
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//------------------------------------------------------------------------------ |
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// Public Interface |
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//------------------------------------------------------------------------------ |
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/** |
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* Load all rule modules from specified directory. |
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* @param {string} relativeRulesDir Path to rules directory, may be relative. |
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* @param {string} cwd Current working directory |
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* @returns {Object} Loaded rule modules. |
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*/ |
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module.exports = function(relativeRulesDir, cwd) { |
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const rulesDir = path.resolve(cwd, relativeRulesDir); |
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// cache will help performance as IO operation are expensive |
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if (rulesDirCache[rulesDir]) { |
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return rulesDirCache[rulesDir]; |
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} |
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const rules = Object.create(null); |
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fs.readdirSync(rulesDir).forEach(file => { |
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if (path.extname(file) !== ".js") { |
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return; |
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} |
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rules[file.slice(0, -3)] = require(path.join(rulesDir, file)); |
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}); |
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rulesDirCache[rulesDir] = rules; |
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return rules; |
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};
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