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c451dd6cce
Summary: The middleware for automatically converting Systrace traces to HTML and popping the browser hasn't worked properly for a while, since the version on Homebrew generates some code that uses `Object.observe`, which was deleted from Chrome ages ago. People have complained about it, but fixing it properly has proven to be harder than expected, so I suggest we simply update the message with instructions for people to load it on Chrome, which is what all of us have been doing anyway (AFAIK). Closes https://github.com/facebook/react-native/pull/12445 Reviewed By: javache Differential Revision: D4700153 Pulled By: gaearon fbshipit-source-id: 0c33099babed93b3c70d36ae9dfc7d82460c8269
30 lines
944 B
JavaScript
30 lines
944 B
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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'use strict';
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const fs = require('fs');
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module.exports = function(req, res, next) {
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if (req.url !== '/systrace') {
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next();
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return;
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}
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console.log('Dumping profile information...');
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var dumpName = '/tmp/dump_' + Date.now() + '.json';
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fs.writeFileSync(dumpName, req.rawBody);
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var response =
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'Your profile was saved at:\n' + dumpName + '\n\n' +
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'On Google Chrome navigate to chrome://tracing and then click on "load" ' +
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'to load and visualise your profile.\n\n' +
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'This message is also printed to your console by the packager so you can copy it :)';
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console.log(response);
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res.end(response);
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};
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