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'use strict';
let _versions;
const getUrl = (url) => {
return new Promise((resolve, reject) => {
const https = require('https');
const request = https.get(url, (response) => {
if (response.statusCode !== 200) {
reject(new Error(
`Failed to get ${url}, status code ${response.statusCode}`));
}
response.setEncoding('utf8');
let body = '';
response.on('data', (data) => body += data);
response.on('end', () => resolve(body));
});
request.on('error', (err) => reject(err));
});
};
module.exports = {
async versions() {
if (_versions) {
return _versions;
}
// The CHANGELOG.md on release branches may not reference newer semver
// majors of Node.js so fetch and parse the version from the master branch.
const githubContentUrl = 'https://raw.githubusercontent.com/nodejs/node/';
const changelog = await getUrl(`${githubContentUrl}/master/CHANGELOG.md`);
const ltsRE = /Long Term Support/i;
const versionRE = /\* \[Node\.js ([0-9.]+)\][^-—]+[-—]\s*(.*)\n/g;
_versions = [];
let match;
while ((match = versionRE.exec(changelog)) != null) {
const entry = { num: `${match[1]}.x` };
if (ltsRE.test(match[2])) {
entry.lts = true;
}
_versions.push(entry);
}
return _versions;
}
};