| 'use strict' |
| const chalk = require('chalk') |
| const semver = require('semver') |
| const packageConfig = require('../package.json') |
| const shell = require('shelljs') |
| |
| function exec (cmd) { |
| return require('child_process').execSync(cmd).toString().trim() |
| } |
| |
| const versionRequirements = [ |
| { |
| name: 'node', |
| currentVersion: semver.clean(process.version), |
| versionRequirement: packageConfig.engines.node |
| } |
| ] |
| |
| if (shell.which('npm')) { |
| versionRequirements.push({ |
| name: 'npm', |
| currentVersion: exec('npm --version'), |
| versionRequirement: packageConfig.engines.npm |
| }) |
| } |
| |
| module.exports = function () { |
| const warnings = [] |
| |
| for (let i = 0; i < versionRequirements.length; i++) { |
| const mod = versionRequirements[i] |
| |
| if (!semver.satisfies(mod.currentVersion, mod.versionRequirement)) { |
| warnings.push(mod.name + ': ' + |
| chalk.red(mod.currentVersion) + ' should be ' + |
| chalk.green(mod.versionRequirement) |
| ) |
| } |
| } |
| |
| if (warnings.length) { |
| console.log('') |
| console.log(chalk.yellow('To use this template, you must update following to modules:')) |
| console.log() |
| |
| for (let i = 0; i < warnings.length; i++) { |
| const warning = warnings[i] |
| console.log(' ' + warning) |
| } |
| |
| console.log() |
| process.exit(1) |
| } |
| } |