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import semver from 'semver';
import mapping from 'core-js-compat/src/mapping.mjs';
const { coerce, cmp } = semver;
let updated = true;
async function getJSON(path, ...slice) {
const result = await fetch(path);
const text = await result.text();
return JSON.parse(text.slice(...slice));
}
async function getFromMDN(name, branch = 'mdn/browser-compat-data/main') {
const {
browsers: { [name]: { releases } },
} = await getJSON(`https://raw.githubusercontent.com/${ branch }/browsers/${ name }.json`);
return releases;
}
async function getLatestFromMDN(name, branch) {
const releases = await getFromMDN(name, branch);
const version = Object.keys(releases).reduce((a, b) => {
return releases[b].engine_version && cmp(coerce(b), '>', coerce(a)) ? b : a;
});
return { engine: releases[version].engine_version, version };
}
function modernV8ToChrome(string) {
const version = coerce(string);
return version.major * 10 + version.minor;
}
function latest(array) {
return array[array.length - 1];
}
function assert(condition, engine) {
if (!condition) {
updated = false;
echo(chalk.red(`${ chalk.cyan(engine) } mapping should be updated`));
}
}
const [
[{ v8 }],
electron,
deno,
oculus,
opera,
operaAndroid,
safari,
ios,
samsung,
] = await Promise.all([
getJSON('https://nodejs.org/dist/index.json'),
getJSON('https://raw.githubusercontent.com/Kilian/electron-to-chromium/master/chromium-versions.js', 17, -1),
getLatestFromMDN('deno'),
getLatestFromMDN('oculus'),
getLatestFromMDN('opera'),
getLatestFromMDN('opera_android'),
getFromMDN('safari'),
getLatestFromMDN('safari_ios'),
getLatestFromMDN('samsunginternet_android'),
]);
assert(modernV8ToChrome(v8) <= latest(mapping.ChromeToNode)[0], 'NodeJS');
assert(latest(Object.entries(electron))[0] <= latest(mapping.ChromeToElectron)[0], 'Electron');
assert(modernV8ToChrome(deno.engine) <= latest(mapping.ChromeToDeno)[0], 'Deno');
assert(oculus.engine <= latest(mapping.ChromeAndroidToQuest)[0], 'Meta Quest');
assert(opera.version === String(mapping.ChromeToOpera(opera.engine)), 'Opera');
assert(operaAndroid.engine <= latest(mapping.ChromeAndroidToOperaAndroid)[0], 'Opera for Android');
assert(ios.version === Object.entries(safari).find(([, { engine_version: engine }]) => engine === ios.engine)[0], 'iOS Safari');
assert(samsung.engine <= latest(mapping.ChromeAndroidToSamsung)[0], 'Samsung Internet');
if (updated) echo(chalk.green('updates of compat data mapping not required'));
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