yun-cli/lib/check-version.js

A simple CLI for scaffolding Vue.js projects with yun-ui.

var request = require('request')
var semver = require('semver')
var chalk = require('chalk')
var packageConfig = require('../package.json')

module.exports = function (done) {
    // Ensure minimum supported node version is used
    if (!semver.satisfies(process.version, packageConfig.engines.node)) {
        return console.log(chalk.red(
            '  You must upgrade node to >=' + packageConfig.engines.node + '.x to use vue-cli'
        ))
    }
    
    request({
        url: 'https://registry.npmjs.org/vue-cli',
        timeout: 1000
    }, function (err, res, body) {
        if (!err && res.statusCode === 200) {
            var latestVersion = JSON.parse(body)['dist-tags'].latest
            var localVersion = packageConfig.version
            if (semver.lt(localVersion, latestVersion)) {
                console.log(chalk.yellow('  A newer version of vue-cli is available.'))
                console.log()
                console.log('  latest:    ' + chalk.green(latestVersion))
                console.log('  installed: ' + chalk.red(localVersion))
                console.log()
            }
        }
        done()
    })
}