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Introduce utils/check_availability.js utility

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This patch introduces check_availability.js utility which looks for
available chromium binaries for different revisions and platforms.

This patch also re-factors the chromium downloader scripts so that
it can operate different platforms.
This commit is contained in:
Andrey Lushnikov
2017-05-14 20:05:41 -07:00
parent 6c0e3ebe3e
commit 2b50d8cc32
6 changed files with 387 additions and 132 deletions
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123
lib/Downloader.js
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@@ -1,123 +0,0 @@
/**
* Copyright 2017 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var os = require('os');
var https = require('https');
var fs = require('fs');
var path = require('path');
var extract = require('extract-zip');
var util = require('util');
var CHROMIUM_PATH = path.join(__dirname, '..', '.local-chromium');
var downloadURLs = {
linux: 'https://storage.googleapis.com/chromium-browser-snapshots/Linux_x64/%d/chrome-linux.zip',
darwin: 'https://storage.googleapis.com/chromium-browser-snapshots/Mac/%d/chrome-mac.zip',
win32: 'https://storage.googleapis.com/chromium-browser-snapshots/Win/%d/chrome-win32.zip',
win64: 'https://storage.googleapis.com/chromium-browser-snapshots/Win_x64/%d/chrome-win32.zip',
};
module.exports = {
downloadChromium,
executablePath,
};
/**
* @param {string} revision
* @param {?function(number, number)} progressCallback
* @return {!Promise}
*/
async function downloadChromium(revision, progressCallback) {
var url = null;
var platform = os.platform();
if (platform === 'darwin')
url = downloadURLs.darwin;
else if (platform === 'linux')
url = downloadURLs.linux;
else if (platform === 'win32')
url = os.arch() === 'x64' ? downloadURLs.win64 : downloadURLs.win32;
console.assert(url, `Unsupported platform: ${platform}`);
url = util.format(url, revision);
var zipPath = path.join(CHROMIUM_PATH, `download-${revision}.zip`);
var folderPath = path.join(CHROMIUM_PATH, revision);
if (fs.existsSync(folderPath))
return;
try {
if (!fs.existsSync(CHROMIUM_PATH))
fs.mkdirSync(CHROMIUM_PATH);
await downloadFile(url, zipPath, progressCallback);
await extractZip(zipPath, folderPath);
} finally {
if (fs.existsSync(zipPath))
fs.unlinkSync(zipPath);
}
}
/**
* @return {string}
*/
function executablePath(revision) {
var platform = os.platform();
if (platform === 'darwin')
return path.join(CHROMIUM_PATH, revision, 'chrome-mac', 'Chromium.app', 'Contents', 'MacOS', 'Chromium');
if (platform === 'linux')
return path.join(CHROMIUM_PATH, revision, 'chrome-linux', 'chrome');
if (platform === 'win32')
return path.join(CHROMIUM_PATH, revision, 'chrome-win32', 'chrome.exe');
throw new Error(`Unsupported platform: ${platform}`);
}
/**
* @param {string} url
* @param {string} destinationPath
* @param {?function(number, number)} progressCallback
* @return {!Promise}
*/
function downloadFile(url, destinationPath, progressCallback) {
var fulfill, reject;
var promise = new Promise((x, y) => { fulfill = x; reject = y; });
var request = https.get(url, response => {
if (response.statusCode !== 200) {
var error = new Error(`Download failed: server returned code ${response.statusCode}. URL: ${url}`);
// consume response data to free up memory
response.resume();
reject(error);
return;
}
var file = fs.createWriteStream(destinationPath);
file.on('finish', () => fulfill());
file.on('error', error => reject(error));
response.pipe(file);
var totalBytes = parseInt(response.headers['content-length'], 10);
if (progressCallback)
response.on('data', onData.bind(null, totalBytes));
});
request.on('error', error => reject(error));
return promise;
function onData(totalBytes, chunk) {
progressCallback(totalBytes, chunk.length);
}
}
/**
* @param {string} zipPath
* @param {string} folderPath
* @return {!Promise<?Error>}
*/
function extractZip(zipPath, folderPath) {
return new Promise(fulfill => extract(zipPath, {dir: folderPath}, fulfill));
}