ciffi/core/CheckUpdate.js

Ciffi Frontend Generator

const chalk = require('chalk')
const ProcessManager = require('./ProcessManager')
const Loading = require('./Loading')

class CheckUpdate {
  constructor(callback) {
    console.log('👀' + chalk.blue('Looking for updates'))

    this.getCurrentVersion(currentVersion => {
      this.getNewVersion(newVersion => {
        this.checkUpdate(currentVersion, newVersion, callback)
      })
    })
  }

  getCurrentVersion(callback) {
    let version
    new ProcessManager({
      process: 'ciffi -v',
      onMessage: res => {
        version = res
      },
      onClose: () => {
        callback(version)
      }
    })
  }

  getNewVersion(callback) {
    let version
    new ProcessManager({
      process: 'npm info ciffi version',
      onMessage: res => {
        version = res
      },
      onClose: () => {
        this.newVersion = version
        callback(version)
      }
    })
  }

  update(callback) {
    Loading.start('Download and install ' + chalk.blue('ciffi'))
    new ProcessManager({
      process: `npm i -g ciffi@${this.newVersion}`,
      onClose: () => {
        Loading.stop(
          'Download and install ' +
            chalk.blue('ciffi') +
            chalk.green.bold(' OK')
        )
        callback()
      }
    })
  }

  checkUpdate(currentVersion, newVersion, callback) {
    const current = currentVersion.split('.')
    const latest = newVersion.split('.')
    let hasNewVersion = 0

    for (let i = 0; i < current.length; i++) {
      if (parseInt(latest[i]) > parseInt(current[i])) {
        hasNewVersion++
      }
    }

    callback(hasNewVersion > 0, currentVersion, newVersion)
  }
}

module.exports = CheckUpdate