79 lines
1.8 KiB
JavaScript
79 lines
1.8 KiB
JavaScript
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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'use strict';
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const { ESLint } = require('eslint');
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const { Transform } = require('stream');
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const { relative } = require('path');
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const fancyLog = require('fancy-log');
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/**
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* @param {Function} action - A function to handle all ESLint results
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* @returns {stream} gulp file stream
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*/
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function eslint(action) {
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const linter = new ESLint({});
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const formatter = linter.loadFormatter('compact');
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const results = [];
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results.errorCount = 0;
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results.warningCount = 0;
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return transform(
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async (file, enc, cb) => {
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const filePath = relative(process.cwd(), file.path);
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if (file.isNull()) {
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cb(null, file);
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return;
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}
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if (file.isStream()) {
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cb(new Error('vinyl files with Stream contents are not supported'));
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return;
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}
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try {
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// TODO: Should this be checked?
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if (await linter.isPathIgnored(filePath)) {
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cb(null, file);
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return;
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}
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const result = (await linter.lintText(file.contents.toString(), { filePath }))[0];
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results.push(result);
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results.errorCount += result.errorCount;
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results.warningCount += result.warningCount;
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const message = (await formatter).format([result]);
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if (message) {
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fancyLog(message);
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}
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cb(null, file);
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} catch (error) {
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cb(error);
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}
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},
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(done) => {
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try {
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action(results);
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done();
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} catch (error) {
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done(error);
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}
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});
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}
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function transform(transform, flush) {
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return new Transform({
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objectMode: true,
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transform,
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flush
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});
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}
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module.exports = eslint;
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