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load-versions.js
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executable file
·70 lines (59 loc) · 1.6 KB
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#!/usr/bin/env node
'use strict'
const fs = require('fs')
const semver = require('semver')
const map = require('map-async')
const https = require('https')
function loadVersions (callback) {
map(
[ 'https://nodejs.org/dist/index.json', 'https://iojs.org/dist/index.json' ],
download,
function (err, versions) {
if (err) { return callback(err) }
versions = munge(versions)
callback(null, versions)
}
)
}
function download (url, cb) {
let data = ''
https.get(url, function (res) {
res.on('data', function (chunk) { data += chunk })
res.on('end', function () {
try {
cb(null, JSON.parse(data))
} catch (e) {
return cb(e)
}
})
}).on('error', function (e) {
console.error('Error downloading file from %s: %s', url, e.message)
cb(e)
})
}
function munge (versions) {
versions[0].forEach(function (v) {
v.url = 'https://nodejs.org/dist/' + v.version + '/'
v.name = 'Node.js'
})
versions[1].forEach(function (v) {
v.url = 'https://iojs.org/dist/' + v.version + '/'
v.name = 'io.js'
})
let allVersions = versions[0].concat(versions[1])
allVersions.sort(function (a, b) {
return semver.compare(b.version, a.version)
})
return allVersions
}
module.exports = loadVersions
if (require.main === module) {
loadVersions(function (err, versions) {
if (err) {
console.error('Aborting due to download error from node or iojs')
console.error(err.stack)
return process.exit(1)
}
fs.writeFileSync(__dirname + '/../source/versions.json', JSON.stringify(versions, null, 2))
})
}