fix(ui5-tooling-modules): re-enable chunks for middleware (#767)

packages/ui5-tooling-modules/lib/util.js

@@ -25,6 +25,7 @@ const minimatch = require("minimatch");
 
 // local output cache of rollup
 const outputCache = {};
+const chunkToModulePath = {};
 
 // local cache of negative modules (avoid additional lookups)
 const modulesNegativeCache = [];
@@ -254,7 +255,8 @@ const that = (module.exports = {
  let bundling = false;
 
  try {
- const modulePath = that.resolveModule(moduleName);
+ // in case of chunks are requested, we lookup the original module
+ const modulePath = chunkToModulePath[moduleName] ?? that.resolveModule(moduleName);
  if (modulePath) {
  if (!existsSync(modulePath)) {
  log.error(`Bundle ${moduleName} doesn't exist at the resolved path ${modulePath}!`);
@@ -263,9 +265,10 @@ const that = (module.exports = {
 
  const lastModified = new Date((await stat(modulePath)).mtime).getTime();
  const moduleExt = path.extname(modulePath).toLowerCase();
+ const isChunk = !!chunkToModulePath[moduleName];
 
  let cachedOutput = outputCache[moduleName];
- if (skipCache || !cachedOutput || cachedOutput.lastModified !== lastModified) {
+ if (!isChunk && (skipCache || !cachedOutput || cachedOutput.lastModified !== lastModified)) {
  // is the bundle a UI5 module?
  const moduleContent = await readFile(modulePath, { encoding: "utf8" });
 
@@ -295,6 +298,12 @@ const that = (module.exports = {
  // should be also given by the rollup configuration!
  if (output.length > 1) {
  debug && log.info(`The bundle for ${moduleName} has ${output.length} chunks!`);
+ // cleanup the chunkToModulePath mapping for the current module
+ Object.keys(chunkToModulePath).forEach((fileName) => {
+ if (chunkToModulePath[fileName] === modulePath) {
+ delete chunkToModulePath[fileName];
+ }
+ });
  // store the individual output chunks as well in the cache
  cachedOutput.chunks = {};
  output.slice(1).forEach((chunk) => {
@@ -303,6 +312,7 @@ const that = (module.exports = {
  code: chunk.code,
  lastModified,
  };
+ chunkToModulePath[fileName] = modulePath;
  });
  }
  } else {