@arc-fusion/cli/bin/utils/local.js

CLI for running Arc Fusion on your local machine

'use strict'

const path = require('path')
const { fileExists, readFile } = require('./promises')
const { existsSync, copyFileSync, unlinkSync } = require('fs')
const { execSync } = require('child_process')
const spawn = require('./spawn')

const getEnvVariables = async (PROJECT_ROOT) => {
  const envPath = path.join(PROJECT_ROOT, '.env')
  if (!await fileExists(envPath)) {
    console.log('.env file was not found')
    return {}
  }
  return (await readFile(envPath))
    .toString()
    .split('\n')
    .reduce((obj, line) => {
      const [key, value] = line.split('=')
      if (key && value) obj[key] = value
      return obj
    }, {})
}

const getBlockVariables = async (PROJECT_ROOT) => {
  const blocksPath = path.join(PROJECT_ROOT, 'blocks.json')
  if (!await fileExists(blocksPath)) return false
  return require(blocksPath)
}

const normalizeBlockName = block => {
  // Strip versioning
  const packageName = block.split('@').slice(0, 2).join('@')
  // Strip org name
  const blockName = packageName.split('/').slice(1, block.length - 1).join('/')
  return {
    packageName,
    blockName
  }
}

const getLinkedThemeBlocks = async (PROJECT_ROOT, themePath, blocksEnv, links, production) => {
  if (!themePath) return console.log('The THEME_BLOCKS_REPO variable was not found. Using published blocks')
  const { blocks, devBlocks } = blocksEnv

  // Check flags
  if (links && production) return console.log('Unable to use both published and local blocks, using published blocks')
  if (production || !links) return console.log('Using published blocks')

  const npmrcSourcePath = path.resolve(PROJECT_ROOT, '.npmrc')
  const linkBlocks = blocks => blocks
    .map(block => {
      const { packageName, blockName } = normalizeBlockName(block)
      const blockPath = path.resolve(themePath, 'blocks', blockName)
      // eslint-disable-next-line array-callback-return
      if (!existsSync(blockPath)) return

      console.log(`--- Installing dependencies for ${packageName}`)
      const npmrcDestPath = path.resolve(blockPath, '.npmrc')
      copyFileSync(npmrcSourcePath, npmrcDestPath)
      execSync('npm install --no-save --silent', { cwd: blockPath })
      unlinkSync(npmrcDestPath)

      return `${blockPath}:/opt/engine/bundle/linked_modules/${packageName}:ro,cached`
    })
    .filter(v => v)
  const devLinks = typeof links === 'string' ? links.split(',') : []
  if (!devLinks.length && (!devBlocks || !devBlocks.length)) {
    console.log('--- Linking all blocks')
    return linkBlocks(blocks)
  }
  console.log('--- Linking only development blocks')
  return linkBlocks(devLinks.length ? devLinks : devBlocks)
}

const getLinkedEngineSdkBlock = (enginePath, blocksEnv) => {
  if (!enginePath) return console.log('The ENGINE_SDK_REPO variable was not found. Using published version')
  if (!existsSync(enginePath)) return console.log('The ENGINE_SDK_REPO variable points to an invalid location. Using published version')
  const { engineSDK } = blocksEnv
  if (!engineSDK) return console.log('No engine sdk specified in blocks.json')

  console.log('--- Linking engine sdk')
  const { packageName } = normalizeBlockName(engineSDK)
  return `${path.resolve(enginePath, 'src')}:/opt/engine/bundle/linked_modules/${packageName}:ro,cached`
}

const getLinkedCssFrameworkBlock = (cssPath, blocksEnv) => {
  if (!cssPath) return console.log('The CSS_FRAMEWORK_REPO variable was not found. Using published version')
  if (!existsSync(cssPath)) return console.log('The CSS_FRAMEWORK_REPO variable points to an invalid location. Using published version')
  const { cssFramework } = blocksEnv
  if (!cssFramework) return console.log('No css framework specified in blocks.json')

  console.log('--- Linking css framework')
  const { packageName } = normalizeBlockName(cssFramework)
  return `${path.resolve(cssPath)}:/opt/engine/bundle/linked_modules/${packageName}:ro,cached`
}

const getLinkedThemeComponentsBlock = (themePath, blocksEnv) => {
  if (!themePath) return console.log('The THEME_COMPONENTS_REPO variable was not found. Using published version')
  if (!existsSync(themePath)) return console.log('The THEME_COMPONENTS_REPO variable points to an invalid location. Using published version')
  const { themeComponents } = blocksEnv
  if (!themeComponents) return console.log('No theme components specified in blocks.json')

  console.log('--- Linking theme components')
  const { packageName } = normalizeBlockName(themeComponents)
  return `${path.resolve(themePath)}:/opt/engine/bundle/linked_modules/${packageName}:ro,cached`
}

const getLinkedFusionVersion = (fusionPath) => {
  if (fusionPath) {
    const packageJSON = require(path.resolve(fusionPath, 'package.json'))

    // If the path to repo isn't found, return latest to progress with the build as usual
    if (!packageJSON) return 'latest'
    console.log('The package version is', packageJSON.version)
    return packageJSON.version
  }
}

const getLinkedFusionRepo = (fusionPath) => {
  if (!fusionPath) return console.log('The FUSION_REPO variable was not found. Using image')
  if (!existsSync(fusionPath)) return console.log('The FUSION_REPO variable points to an invalid location. Using image')

  console.log('--- Linking fusion repo')
  return {
    cacheProxy: [
      `${path.resolve(fusionPath, 'cache-proxy', 'src')}:/opt/cache-proxy/src:ro,cached`
    ],
    engine: [
      `${path.resolve(fusionPath, 'engine', 'src')}:/opt/engine-dist/src:ro,cached`
    ],
    resolver: [
      `${path.resolve(fusionPath, 'resolver', 'config')}:/opt/resolver/config:ro,cached`,
      `${path.resolve(fusionPath, 'resolver', 'src')}:/opt/resolver/src:ro,cached`
    ],
    origin: [
      `${path.resolve(fusionPath, 'origin', 'src')}:/opt/origin/src:ro,cached`
    ]
  }
}

const createDockerVolume = name => spawn(
  'docker',
  [
    'volume',
    'create',
    name
  ],
  {
    stdio: 'inherit'
  }
)

const deleteDockerVolume = name => spawn(
  'docker',
  [
    'volume',
    'rm',
    '-f',
    name
  ],
  {
    stdio: 'inherit'
  }
)

module.exports = {
  getEnvVariables,
  getBlockVariables,
  getLinkedThemeBlocks,
  getLinkedEngineSdkBlock,
  getLinkedCssFrameworkBlock,
  getLinkedThemeComponentsBlock,
  getLinkedFusionVersion,
  getLinkedFusionRepo,
  createDockerVolume,
  deleteDockerVolume
}