playwright/utils/check_chromium_cdn.js

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2019-11-19 05:18:28 +03:00
#!/usr/bin/env node
/**
* 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.
*/
const assert = require('assert');
const https = require('https');
const util = require('util');
const URL = require('url');
const SUPPORTER_PLATFORMS = ['linux', 'mac', 'win64'];
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const colors = {
reset: '\x1b[0m',
red: '\x1b[31m',
green: '\x1b[32m',
yellow: '\x1b[33m'
};
class Table {
/**
* @param {!Array<number>} columnWidths
*/
constructor(columnWidths) {
this.widths = columnWidths;
}
/**
* @param {!Array<string>} values
*/
drawRow(values) {
assert(values.length === this.widths.length);
let row = '';
for (let i = 0; i < values.length; ++i)
row += padCenter(values[i], this.widths[i]);
console.log(row);
}
}
if (process.argv.length === 2) {
checkOmahaProxyAvailability();
return;
}
if (process.argv.length !== 4) {
console.log(`
Usage: node check_revisions.js [fromRevision] [toRevision]
This script checks availability of different prebuild chromium revisions.
Running command without arguments will check against omahaproxy revisions.`);
return;
}
const fromRevision = parseInt(process.argv[2], 10);
const toRevision = parseInt(process.argv[3], 10);
checkRangeAvailability(fromRevision, toRevision, false /* stopWhenAllAvailable */);
async function checkOmahaProxyAvailability() {
const lastchanged = (await Promise.all([
fetch('https://storage.googleapis.com/chromium-browser-snapshots/Mac/LAST_CHANGE'),
fetch('https://storage.googleapis.com/chromium-browser-snapshots/Linux_x64/LAST_CHANGE'),
fetch('https://storage.googleapis.com/chromium-browser-snapshots/Win/LAST_CHANGE'),
fetch('https://storage.googleapis.com/chromium-browser-snapshots/Win_x64/LAST_CHANGE'),
])).map(s => parseInt(s, 10));
const from = Math.max(...lastchanged);
checkRangeAvailability(from, 0, true /* stopWhenAllAvailable */);
}
/**
* @param {number} fromRevision
* @param {number} toRevision
* @param {boolean} stopWhenAllAvailable
*/
async function checkRangeAvailability(fromRevision, toRevision, stopWhenAllAvailable) {
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const table = new Table([15, 7, 7, 7]);
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table.drawRow([''].concat(SUPPORTER_PLATFORMS));
const inc = fromRevision < toRevision ? 1 : -1;
for (let revision = fromRevision; revision !== toRevision; revision += inc) {
const allAvailable = await checkAndDrawRevisionAvailability(table, 'chromium', revision);
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if (allAvailable && stopWhenAllAvailable)
break;
}
}
async function canDownload(revision, platform) {
const serverHost = 'https://storage.googleapis.com';
const urlTemplate = new Map([
['linux', '%s/chromium-browser-snapshots/Linux_x64/%d/chrome-linux.zip'],
['mac', '%s/chromium-browser-snapshots/Mac/%d/chrome-mac.zip'],
['win64', '%s/chromium-browser-snapshots/Win_x64/%d/chrome-win.zip'],
]).get(platform);
assert(urlTemplate, `ERROR: Playwright does not support ${platform}`);
const url = util.format(urlTemplate, serverHost, revision);
return await headRequest(url);
}
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/**
* @param {!Table} table
* @param {string} name
* @param {number} revision
* @return {boolean}
*/
async function checkAndDrawRevisionAvailability(table, name, revision) {
const promises = SUPPORTER_PLATFORMS.map(platform => canDownload(revision, platform));
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const availability = await Promise.all(promises);
const allAvailable = availability.every(e => !!e);
const values = [name + ' ' + (allAvailable ? colors.green + revision + colors.reset : revision)];
for (let i = 0; i < availability.length; ++i) {
const decoration = availability[i] ? '+' : '-';
const color = availability[i] ? colors.green : colors.red;
values.push(color + decoration + colors.reset);
}
table.drawRow(values);
return allAvailable;
}
/**
* @param {string} url
* @return {!Promise<?string>}
*/
function fetch(url) {
let resolve;
const promise = new Promise(x => resolve = x);
https.get(url, response => {
if (response.statusCode !== 200) {
resolve(null);
return;
}
let body = '';
response.on('data', function(chunk){
body += chunk;
});
response.on('end', function(){
resolve(body);
});
}).on('error', function(e){
console.error('Error fetching json: ' + e);
resolve(null);
});
return promise;
}
/**
* @param {number} size
* @return {string}
*/
function spaceString(size) {
return new Array(size).fill(' ').join('');
}
/**
* @param {string} text
* @return {string}
*/
function filterOutColors(text) {
for (const colorName in colors) {
const color = colors[colorName];
text = text.replace(color, '');
}
return text;
}
/**
* @param {string} text
* @param {number} length
* @return {string}
*/
function padCenter(text, length) {
const printableCharacters = filterOutColors(text);
if (printableCharacters.length >= length)
return text;
const left = Math.floor((length - printableCharacters.length) / 2);
const right = Math.ceil((length - printableCharacters.length) / 2);
return spaceString(left) + text + spaceString(right);
}
async function headRequest(url) {
return new Promise(resolve => {
let options = URL.parse(url);
options.method = 'HEAD';
const request = https.request(options, res => resolve(res.statusCode === 200));
request.on('error', error => resolve(false));
request.end();
});
}