forked from lix-project/lix-website
60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
'use strict';
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const fs = require('fs');
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const path = require('path');
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const glob = require('glob');
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const escapeRegex = require('escape-string-regexp');
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const parse = require('./lib/parse-variable');
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const defaultOptions = {
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ignore: []
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};
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function findUnusedVars(strDir, opts) {
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const options = Object.assign(defaultOptions, opts);
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const dir = path.isAbsolute(strDir) ? strDir : path.resolve(strDir);
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if (Boolean(options.ignore) && !Array.isArray(options.ignore)) {
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throw new TypeError('`ignore` should be an Array');
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}
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// Trim list of ignored variables
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options.ignore = options.ignore.map(val => val.trim());
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if (!(fs.existsSync(dir) && fs.statSync(dir).isDirectory())) {
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throw new Error(`"${dir}": Not a valid directory!`);
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}
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// Array of all Sass files
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const sassFiles = glob.sync(path.join(dir, '**/*.scss'));
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// String of all Sass files' content
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let sassFilesString = sassFiles.reduce((sassStr, file) => {
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sassStr += fs.readFileSync(file, 'utf8');
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return sassStr;
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}, '');
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// Remove jekyll comments
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if (sassFilesString.includes('---')) {
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sassFilesString = sassFilesString.replace(/---/g, '');
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}
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const variables = parse(sassFilesString, options.ignore);
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// Store unused vars from all files and loop through each variable
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const unusedVars = variables.filter(variable => {
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const re = new RegExp(`(${escapeRegex(variable)})\\b(?!-)`, 'g');
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return sassFilesString.match(re).length === 1;
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});
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return {
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unused: unusedVars,
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total: variables.length
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};
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}
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module.exports = {
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find: findUnusedVars
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};
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