97 строки
3.0 KiB
JavaScript
Executable File
97 строки
3.0 KiB
JavaScript
Executable File
#!/usr/bin/env node
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/**
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* @license
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* Copyright 2016 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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const meow = require('meow');
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const log = require('../src/lib/log.js');
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const semver = require('semver');
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const Printer = require('./printer');
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const lighthouse = require('../');
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// node 5.x required due to use of ES2015 features
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if (semver.lt(process.version, '5.0.0')) {
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console.error('Lighthouse requires node version 5.0 or newer');
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process.exit(1);
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}
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const formatOptions = Object.values(Printer.OUTPUT_MODE).join(', ');
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const cli = meow(`
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Usage:
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lighthouse [url]
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Basic:
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--help Show this help
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--version Current version of package
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Logging:
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--verbose Displays verbose logging
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--quiet Displays no progress or debug logs
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Run Configuration:
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--mobile Emulates a Nexus 5X (default=true)
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--load-page Loads the page (default=true)
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--save-trace Save the trace contents to disk
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--save-artifacts Save all gathered artifacts to disk
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Output:
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--output Reporter for the results
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Reporter options: ${formatOptions} (default=pretty)
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--output-path The file path to output the results (default=stdout)
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Example: --output-path=./lighthouse-results.html
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`);
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const url = cli.input[0] || 'https://platform-status.mozilla.org/';
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const outputMode = cli.flags.output || Printer.OUTPUT_MODE.pretty;
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const outputPath = cli.flags.outputPath || 'stdout';
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const flags = cli.flags;
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// If the URL isn't https or localhost complain to the user.
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if (url.indexOf('https') !== 0 && url.indexOf('http://localhost') !== 0) {
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log.warn('Lighthouse', 'The URL provided should be on HTTPS');
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log.warn('Lighthouse', 'Performance stats will be skewed redirecting from HTTP to HTTPS.');
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}
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// set logging preferences
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flags.logLevel = 'info';
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if (cli.flags.verbose) {
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flags.logLevel = 'verbose';
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} else if (cli.flags.quiet) {
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flags.logLevel = 'error';
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}
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// kick off a lighthouse run
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lighthouse(url, flags)
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.then(results => {
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return Printer.write(results, outputMode, outputPath);
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})
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.then(status => {
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outputPath !== 'stdout' && log.info('printer', status);
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})
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.catch(err => {
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if (err.code === 'ECONNREFUSED') {
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console.error('Unable to connect to Chrome. Did you run ./scripts/launch-chrome.sh ?');
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} else {
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console.error('Runtime error encountered:', err);
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console.error(err.stack);
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}
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process.exit(1);
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});
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