@conecli/cone-cli/utils/env.js

松果编辑器命令行工具

const { execSync } = require('child_process')
const semver = require('semver')
const shell = require('shelljs')
const chalk = require('chalk')
const validateProjectName = require('validate-npm-package-name')

let _hasYarn
let _hasGit

// env detection
exports.hasYarn = () => {
  if (_hasYarn != null) {
    return _hasYarn
  }
  try {
    execSync('yarn --version', { stdio: 'ignore' })
    return (_hasYarn = true)
  } catch (e) {
    return (_hasYarn = false)
  }
}


exports.hasGit = () => {
  if (_hasGit != null) {
    return _hasGit
  }
  try {
    execSync('git --version', { stdio: 'ignore' })
    return (_hasGit = true)
  } catch (e) {
    return (_hasGit = false)
  }
}

// OS
exports.isWindows = process.platform === 'win32'
exports.isMacintosh = process.platform === 'darwin'
exports.isLinux = process.platform === 'linux'

/**
 * 检查nodejs版本是否满足要求
 */
exports.checkNodeVersion = (wanted, id) => {
  if (!semver.satisfies(process.version, wanted, { includePrerelease: true })) {
    console.log(chalk.red(
      'You are using Node ' + process.version + ', but this version of ' + id +
      ' requires Node ' + wanted + '.\nPlease upgrade your Node version.'
    ))
    process.exit(1)
  }
}

/**
 * 检查自身是否有更新
 * @param {*} localVersion 
 * @param {*} id 
 */
exports.checkVersion = (localVersion, id) => {
  const result = shell.exec(`npm view ${id} version`, {silent: true});
  if (result && result.code === 0) {
    const latestVersionStr = result.stdout || '';
    const latestVersion = latestVersionStr.split('\n')[0]
    if (semver.lt(localVersion, latestVersion)) {
      console.log()
      console.log(chalk.yellow('  A newer version of ' + id + ' is available.'))
      console.log('  latest:    ' + chalk.green(latestVersion))
      console.log('  installed: ' + chalk.red(localVersion))
      console.log(`  use command line: ${chalk.yellow('npm install -g @conecli/cone-cli@latest')} to upgrade.`)
      console.log()
    }
  }
}

/**
 * 检查项目名称是否合理
 */
exports.checkProjectName = (name) => {
  const result = validateProjectName(name)
  if (!result.validForNewPackages) {
    console.error(chalk.red(`Invalid project name: "${name}"`))
    result.errors && result.errors.forEach(err => {
      console.error(chalk.red.dim('Error: ' + err))
    })
    result.warnings && result.warnings.forEach(warn => {
      console.error(chalk.red.dim('Warning: ' + warn))
    })
    process.exit(1)
  }
}