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import semver from 'semver';
const { coerce, cmp } = semver;
const { cyan, green } = chalk;
const ALL = !argv._.includes('main-only');
const downloadsByPatch = {};
const downloadsByMinor = {};
const downloadsByMajor = {};
let total = 0;
async function getStat(pkg) {
const res = await fetch(`https://www.npmjs.com/package/${ pkg }`);
const html = await res.text();
const { json } = html.match(/>window\.__context__ = (?<json>[^<]+)<\//).groups;
return JSON.parse(json).context.versionsDownloads;
}
const [core, pure, bundle] = await Promise.all([
getStat('core-js'),
// eslint-disable-next-line unicorn/prefer-top-level-await -- false positive
ALL && getStat('core-js-pure'),
// eslint-disable-next-line unicorn/prefer-top-level-await -- false positive
ALL && getStat('core-js-bundle'),
]);
for (let [patch, downloads] of Object.entries(core)) {
const version = coerce(patch);
const { major } = version;
const minor = `${ major }.${ version.minor }`;
if (ALL) downloads += (pure[patch] || 0) + (bundle[patch] || 0);
downloadsByPatch[patch] = downloads;
downloadsByMinor[minor] = (downloadsByMinor[minor] || 0) + downloads;
downloadsByMajor[major] = (downloadsByMajor[major] || 0) + downloads;
total += downloads;
}
function log(kind, map) {
echo(green(`downloads for 7 days by ${ cyan(kind) } releases:`));
console.table(Object.entries(map).sort(([a], [b]) => {
return cmp(coerce(a), '>', coerce(b)) ? 1 : -1;
}).reduce((memo, [version, downloads]) => {
memo[version] = { downloads, '%': `${ (downloads / total * 100).toFixed(2).padStart(5) } %` };
return memo;
}, {}));
}
log('patch', downloadsByPatch);
log('minor', downloadsByMinor);
log('major', downloadsByMajor);
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