133 lines
4.5 KiB
JavaScript
133 lines
4.5 KiB
JavaScript
var async = require('async');
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var Q = require('q');
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var ps = require('ps-node');
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var debug = require('debug')('ylt:phantomaswrapper');
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var phantomas = require('phantomas');
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var PhantomasWrapper = function() {
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'use strict';
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/**
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* This is the phantomas launcher. It merges user chosen options into the default options
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* Available options :
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*
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* - timeout : in seconds (default 60)
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* - jsDeepAnalysis : should we inspect subrequests in the javascript execution tree?
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*
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*/
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this.execute = function(data) {
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var deferred = Q.defer();
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var task = data.params;
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var options = {
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// Cusomizable options
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timeout: task.options.timeout || 60,
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'js-deep-analysis': task.options.jsDeepAnalysis || false,
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// Mandatory
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reporter: 'json:pretty',
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'analyze-css': true,
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'skip-modules': [
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'blockDomains', // not needed
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'domMutations', // not compatible with webkit
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'domQueries', // overriden
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'eventListeners', // overridden
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'filmStrip', // not needed
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'har', // not needed for the moment
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'javaScriptBottlenecks', // needs to be launched after custom module scopeYLT,
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'jserrors', // overridden
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'pageSource', // not needed
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'screenshot', // not needed for the moment
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'waitForSelector', // not needed
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'windowPerformance' // overriden
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].join(','),
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'include-dirs': [
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'lib/tools/phantomas/custom_modules/core',
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'lib/tools/phantomas/custom_modules/modules'
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].join(',')
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};
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// Output the command line for debugging purpose
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debug('If you want to reproduce the phantomas task only, copy the following command line:');
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var optionsString = '';
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for (var opt in options) {
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optionsString += ' ' + '--' + opt + '=' + options[opt];
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}
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debug('node node_modules/phantomas/bin/phantomas.js --url=' + task.url + optionsString + ' --verbose');
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// Kill the application if nothing happens
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var phantomasPid;
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var killer = setTimeout(function() {
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debug('Killing the app because the test on %s was launched %d seconds ago', task.url, 5*options.timeout);
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// If in server mode, forever will restart the server
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// Kill the Phantomas process first
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if (phantomasPid) {
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ps.kill(phantomasPid, function(err) {
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if (err) {
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debug('Could not kill Phantomas process %s', phantomasPid);
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}
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else {
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debug('Phantomas process %s was correctly killed', phantomasPid);
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}
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// Then suicide.
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process.exit(1);
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});
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}
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}, 5*options.timeout*1000);
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// It's time to launch the test!!!
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var triesNumber = 2;
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async.retry(triesNumber, function(cb) {
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var process = phantomas(task.url, options, function(err, json, results) {
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debug('Returning from Phantomas');
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// Adding some YellowLabTools errors here
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if (json && json.metrics && !json.metrics.javascriptExecutionTree) {
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err = 1001;
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}
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if (!err && (!json || !json.metrics)) {
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err = 1002;
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}
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// Don't cancel test if it is a timeout and we've got some results
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if (err === 252 && json) {
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debug('Timeout after ' + options.timeout + ' seconds. But it\'s not a problem, the test is valid.');
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err = null;
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}
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if (err) {
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debug('Attempt failed. Error code ' + err);
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}
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cb(err, json);
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});
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phantomasPid = process.pid;
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}, function(err, json) {
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clearTimeout(killer);
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if (err) {
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debug('All ' + triesNumber + ' attemps failed for the test');
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deferred.reject(err);
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} else {
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// Success!!!
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deferred.resolve(json);
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}
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});
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return deferred.promise;
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};
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};
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module.exports = new PhantomasWrapper(); |