infra-cli/lib/util/utils.js

infra cli

const fs = require('fs-extra')
const chalk = require('chalk')
const execSync = require('child_process').execSync
const validateProjectName = require('validate-npm-package-name')

const isSafeToCreateProjectIn = function (root, name) {
  const conflicts = fs.readdirSync(root)

  if (conflicts.length > 0) {
    console.error(`The directory ${chalk.green(name)} contains files.`)
    console.error('Either try using a new directory name, or remove the files listed above.')
    return false
  }

  return true
}

const checkAppName = function (appName) {
  const validationResult = validateProjectName(appName)
  if (!validationResult.validForNewPackages) {
    console.error(
      chalk.red(`Cannot create a project named ${chalk.green(`"${appName}"`)} because of npm naming restrictions:\n`)
    )
    ;[...(validationResult.errors || []), ...(validationResult.warnings || [])].forEach((error) => {
      console.error(chalk.red(`  * ${error}`))
    })

    console.error(chalk.red('\nPlease choose a different project name.'))
    process.exit(1)
  }
}

const shouldUseYarn = function () {
  try {
    execSync('yarn --version', { stdio: 'ignore' })
    return true
  } catch (e) {
    return false
  }
}

async function editPackageJson (targetDir, replaceInfo) {
  const packageDir = `${targetDir}/package.json`
  try {
    const packageObj = await fs.readJson(packageDir)
    await fs.writeJson(packageDir, { ...packageObj, ...replaceInfo }, { spaces: 2 })
  } catch (err) {
    // Ignore editing errors
    console.error(chalk.redBright('Failed to edit package.json'))
  }
}

function getUserName () {
  try {
    return execSync('git config user.name').toString() || ''
  } catch (error) {
    return ''
  }
}

module.exports = {
  shouldUseYarn,
  checkAppName,
  isSafeToCreateProjectIn,
  editPackageJson,
  getUserName
}