refactor: add functions.generate util

Author: eduardoboucas

packages/build/src/plugins/child/run.js

@@ -19,8 +19,9 @@ export const run = async function (
  return context.with(getGlobalContext(), async () => {
  const method = methods[event]
  const runState = {}
+ const generatedFunctions = []
  const systemLog = getSystemLog()
- const utils = getUtils({ event, constants, runState })
+ const utils = getUtils({ event, constants, generatedFunctions, runState })
  const netlifyConfigCopy = cloneNetlifyConfig(netlifyConfig)
  const runOptions = {
  utils,
@@ -37,12 +38,13 @@ export const run = async function (
  const envBefore = setEnvChanges(envChanges)
 
  logPluginMethodStart(verbose)
- const returnValue = await method(runOptions)
+ await method(runOptions)
  logPluginMethodEnd(verbose)
 
  const newEnvChanges = getNewEnvChanges(envBefore, netlifyConfig, netlifyConfigCopy)
 
  const configMutations = getConfigMutations(netlifyConfig, netlifyConfigCopy, event)
+ const returnValue = generatedFunctions.length ? { generatedFunctions } : undefined
  return { ...runState, newEnvChanges, configMutations, returnValue }
  })
 }

packages/build/src/plugins/child/utils.js

@@ -13,13 +13,14 @@ import { show } from './status.js'
 export const getUtils = function ({
  event,
  constants: { FUNCTIONS_SRC, INTERNAL_FUNCTIONS_SRC, CACHE_DIR },
+ generatedFunctions = [],
  runState,
 }) {
  run.command = runCommand
 
  const build = getBuildUtils(event)
  const cache = getCacheUtils(CACHE_DIR)
- const functions = getFunctionsUtils(FUNCTIONS_SRC, INTERNAL_FUNCTIONS_SRC)
+ const functions = getFunctionsUtils(FUNCTIONS_SRC, INTERNAL_FUNCTIONS_SRC, generatedFunctions)
  const status = getStatusUtils(runState)
  const utils = { build, cache, run, functions, status }
  addLazyProp(utils, 'git', () => getGitUtils())
@@ -42,12 +43,13 @@ const getCacheUtils = function (CACHE_DIR) {
  return cacheBindOpts({ cacheDir: CACHE_DIR })
 }
 
-const getFunctionsUtils = function (FUNCTIONS_SRC, INTERNAL_FUNCTIONS_SRC) {
+const getFunctionsUtils = function (FUNCTIONS_SRC, INTERNAL_FUNCTIONS_SRC, generatedFunctions) {
  const functionsDirectories = [INTERNAL_FUNCTIONS_SRC, FUNCTIONS_SRC].filter(Boolean)
  const add = (src) => functionsAdd(src, INTERNAL_FUNCTIONS_SRC, { fail: failBuild })
  const list = functionsList.bind(null, functionsDirectories, { fail: failBuild })
  const listAll = functionsListAll.bind(null, functionsDirectories, { fail: failBuild })
- return { add, list, listAll }
+ const generate = (func) => generatedFunctions.push(func)
+ return { add, list, listAll, generate }
 }
 
 const getStatusUtils = function (runState) {