@arc-fusion/cli/bin/environment.js

CLI for running Arc Fusion on your local machine

'use strict'

const fs = require('fs')
const path = require('path')

const ADMIN_RELEASE = require('./admin.json').version

function fileExists (filePath) {
  try {
    fs.accessSync(filePath)
    return true
  } catch (e) {
    return false
  }
}

const COMMAND_ROOT = path.resolve('.')
const FUSION_ROOT = path.dirname(__dirname)
const BOOTSTRAP_ROOT = path.join(FUSION_ROOT, 'bootstrap')

let LOCAL_SCRIPT_PATH
try {
  // don't assume the command is being called from the project root
  // we should support commands being run from subdirectories
  // require.resolve automatically resolves symlinks, so isn't useful with `npm link @arc-fusion/cli`
  // (which is really helpful in testing)
  let possibleProjectRoot = COMMAND_ROOT
  while (possibleProjectRoot.length) {
    const localScriptPath = path.join(possibleProjectRoot, 'node_modules', '@arc-fusion', 'cli', 'bin', 'fusion.js')
    if (fileExists(localScriptPath)) {
      LOCAL_SCRIPT_PATH = localScriptPath
      break
    }
    possibleProjectRoot = possibleProjectRoot.substr(0, possibleProjectRoot.lastIndexOf(path.sep))
  }
} catch (e) {}

const IS_GLOBAL = !LOCAL_SCRIPT_PATH

const PROJECT_ROOT = (IS_GLOBAL)
  ? COMMAND_ROOT
  // remove node_modules/@arc-fusion/cli/bin/fusion.js from the local script path
  : LOCAL_SCRIPT_PATH.split(path.sep).slice(0, -5).join(path.sep)

const REPO_NAME = path.basename(PROJECT_ROOT)

const CACHE_VOLUME_NAME = `fusion_cache_${REPO_NAME}`

require('dotenv').config({ path: path.join(PROJECT_ROOT, '.env') })

module.exports = {
  ADMIN_RELEASE,
  BOOTSTRAP_ROOT,
  COMMAND_ROOT,
  FUSION_RELEASE: process.env.FUSION_RELEASE || 'latest',
  FUSION_ROOT,
  IS_GLOBAL,
  LOCAL_SCRIPT_PATH,
  PROJECT_ROOT,
  REPO_NAME,
  CACHE_VOLUME_NAME
}