infra-cli/lib/scripts/cache.js

infra cli

const inquirer = require('inquirer')
const fs = require('fs-extra')
const os = require('os')
const path = require('path')
const chalk = require('chalk')
const emoji = require('node-emoji')

const { editPackageJson } = require('../util/utils')

const cacheDir = path.join(os.homedir(), '.infra')

const promptConfigs = [
  {
    type: 'confirm',
    message: chalk.blueBright(`${emoji.get(':heart:')} Save this as a cache for future projects? (y/N)`),
    name: 'isCached',
    prefix: ''
  },
  {
    name: 'saveName',
    when: (answers) => answers.isCached,
    type: 'input',
    message: 'Save cache as:',
    prefix: ''
  }
]

async function cacheCurrentChoose (name, targetDir, packageDependencies, packageDevDependencies) {
  const { isCached, saveName } = await inquirer.prompt(promptConfigs)

  if (isCached) {
    try {
      fs.ensureDirSync(cacheDir)

      const saveDir = path.join(cacheDir, saveName || name)

      await fs.emptyDir(saveDir)

      fs.copySync(targetDir, saveDir)

      await editPackageJson(saveDir, { packageDependencies, packageDevDependencies })
    } catch (error) {
      console.error(chalk.redBright(error))
    }
  }
}

async function copyCacheToProject (cacheName, targetDir) {
  const dir = path.join(cacheDir, cacheName)

  if (fs.existsSync(dir)) {
    fs.copySync(dir, targetDir)
    const packageDir = `${targetDir}/package.json`
    const packageObj = await fs.readJson(packageDir)
    const { packageDependencies, packageDevDependencies, ...other } = packageObj

    await fs.writeJson(packageDir, other, { spaces: 2 })

    return { packageDependencies, packageDevDependencies }
  } else {
    console.error(`\n${chalk.redBright('the cache does not exist!')}`)

    process.exit(1)
  }
}

module.exports = {
  cacheCurrentChoose,
  copyCacheToProject,
  cacheDir
}