Cjs named import

.eslintrc.cjs

@@ -70,6 +70,7 @@ const eslintConfig = composeEslintConfig(
       __filename: "off",
       __dirname: "off",
       require: "off",
+      exports: "off",
     },
     overrides: [
       {
@@ -82,6 +83,7 @@ const eslintConfig = composeEslintConfig(
           __filename: true,
           __dirname: true,
           require: true,
+          exports: true,
         },
         // inside *.cjs files, use commonjs module resolution
         settings: {

experimental/commonjs_with_babel/convert_commonjs.js

@@ -1,5 +1,7 @@
+// eslint-disable-next-line no-undef
 exports.answer = process.env.NODE_ENV
 
+// eslint-disable-next-line no-undef
 exports.setTimeout = global.setTimeout
 
 // eslint-disable-next-line no-undef

jsconfig.json

@@ -318,7 +318,7 @@
         "./node_modules/cssnano-preset-default/*"
       ],
       "istanbul-lib-instrument": [
-        "./node_modules/istanbul-lib-instrument/dist/index.js"
+        "./node_modules/istanbul-lib-instrument/src/index.js"
       ],
       "postcss/lib/declaration": [
         "./node_modules/postcss/lib/declaration.js"

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@jsenv/core",
-  "version": "21.0.3",
+  "version": "21.1.0",
   "description": "Tool to develop, test and build js projects",
   "license": "MIT",
   "repository": {
@@ -57,7 +57,7 @@
     "@babel/core": "7.15.5",
     "@babel/helper-module-imports": "7.15.4",
     "@babel/helpers": "7.15.4",
-    "@babel/parser": "7.15.6",
+    "@babel/parser": "7.15.7",
     "@babel/plugin-proposal-dynamic-import": "7.14.5",
     "@babel/plugin-proposal-json-strings": "7.14.5",
     "@babel/plugin-proposal-numeric-separator": "7.14.5",
@@ -95,15 +95,15 @@
     "@babel/plugin-transform-unicode-regex": "7.14.5",
     "@c88/v8-coverage": "0.1.1",
     "@jsenv/cancellation": "3.0.0",
-    "@jsenv/filesystem": "2.1.1",
+    "@jsenv/filesystem": "2.2.0",
     "@jsenv/import-map": "6.13.3",
     "@jsenv/logger": "4.0.1",
     "@jsenv/node-signals": "2.0.1",
-    "@jsenv/server": "7.1.0",
+    "@jsenv/server": "7.2.0",
     "@jsenv/uneval": "1.6.0",
     "@rollup/plugin-commonjs": "20.0.0",
     "@rollup/plugin-json": "4.1.0",
-    "@rollup/plugin-node-resolve": "13.0.4",
+    "@rollup/plugin-node-resolve": "13.0.5",
     "@rollup/plugin-replace": "3.0.0",
     "ansi-to-html": "0.7.1",
     "babel-plugin-transform-async-to-promises": "0.8.15",
@@ -115,49 +115,49 @@
     "html-minifier": "4.0.0",
     "humanize-duration": "3.27.0",
     "is-unicode-supported": "1.1.0",
-    "istanbul-lib-coverage": "3.0.0",
-    "istanbul-lib-instrument": "4.0.3",
+    "istanbul-lib-coverage": "3.0.1",
+    "istanbul-lib-instrument": "5.0.2",
     "istanbul-lib-report": "3.0.0",
     "istanbul-reports": "3.0.2",
     "magic-string": "0.25.7",
     "parse5": "6.0.1",
-    "playwright": "1.14.1",
-    "postcss": "8.3.6",
+    "playwright": "1.15.0",
+    "postcss": "8.3.8",
     "postcss-value-parser": "4.1.0",
     "regenerator-runtime": "0.13.9",
-    "rollup": "2.56.3",
+    "rollup": "2.57.0",
     "rollup-plugin-node-builtins-brofs": "2.1.3",
     "rollup-plugin-node-globals": "1.4.0",
     "source-map": "0.7.3",
-    "string-width": "5.0.0",
+    "string-width": "5.0.1",
     "supports-color": "9.0.2",
     "systemjs": "6.10.3",
-    "terser": "5.7.2",
+    "terser": "5.9.0",
     "tree-kill": "1.2.2",
-    "v8-to-istanbul": "8.0.0",
-    "wrap-ansi": "8.0.0"
+    "v8-to-istanbul": "8.1.0",
+    "wrap-ansi": "8.0.1"
   },
   "devDependencies": {
-    "@babel/eslint-parser": "7.15.4",
+    "@babel/eslint-parser": "7.15.7",
     "@babel/plugin-transform-react-jsx": "7.14.9",
     "@babel/plugin-transform-typescript": "7.15.4",
     "@jsenv/assert": "2.3.1",
     "@jsenv/codecov-upload": "3.5.0",
-    "@jsenv/eslint-config": "16.0.1",
+    "@jsenv/eslint-config": "16.0.4",
     "@jsenv/github-release-package": "1.2.3",
     "@jsenv/importmap-eslint-resolver": "5.1.2",
-    "@jsenv/importmap-node-module": "2.2.0",
+    "@jsenv/importmap-node-module": "2.2.1",
     "@jsenv/node-module-import-map": "13.6.1",
     "@jsenv/package-publish": "1.6.2",
     "@jsenv/performance-impact": "1.7.0",
     "@jsenv/prettier-check-project": "5.6.1",
     "@jsenv/pwa": "4.0.0",
     "eslint": "7.32.0",
-    "eslint-plugin-html": "6.1.2",
+    "eslint-plugin-html": "6.2.0",
     "eslint-plugin-import": "2.24.2",
     "node-notifier": "10.0.0",
     "preact": "10.5.14",
-    "prettier": "2.4.0",
+    "prettier": "2.4.1",
     "react": "17.0.2",
     "redux": "4.1.1"
   }

src/commonJsToJavaScriptModule.js

@@ -60,7 +60,11 @@ export const commonJsToJavaScriptModule = async ({
     buffer: replaceBuffer,
   })
 
-  const commonJsRollupPlugin = commonjs()
+  const commonJsRollupPlugin = commonjs({
+    // esmExternals: true,
+    // defaultIsModuleExports: true,
+    // requireReturnsDefault: "namespace",
+  })
 
   const rollupBuild = await rollup({
     input: filePath,

src/internal/building/buildUsingRollup.js

@@ -1,5 +1,11 @@
 import { createOperation } from "@jsenv/cancellation"
-import { urlToFileSystemPath, ensureEmptyDirectory } from "@jsenv/filesystem"
+import {
+  urlToFileSystemPath,
+  ensureEmptyDirectory,
+  readFile,
+  urlToRelativeUrl,
+} from "@jsenv/filesystem"
+import { createDetailedMessage } from "@jsenv/logger"
 
 import { buildServiceWorker } from "@jsenv/core/src/internal/building/buildServiceWorker.js"
 import { createJsenvRollupPlugin } from "./createJsenvRollupPlugin.js"
@@ -61,45 +67,50 @@ export const buildUsingRollup = async ({
       runtimeSupport.safari,
   )
 
-  const { jsenvRollupPlugin, getLastErrorMessage, getResult } =
-    await createJsenvRollupPlugin({
-      cancellationToken,
-      logger,
+  const {
+    jsenvRollupPlugin,
+    getLastErrorMessage,
+    getResult,
+    asOriginalUrl,
+    asProjectUrl,
+  } = await createJsenvRollupPlugin({
+    cancellationToken,
+    logger,
 
-      projectDirectoryUrl,
-      entryPointMap,
-      compileServerOrigin,
-      compileDirectoryRelativeUrl,
-      buildDirectoryUrl,
-      assetManifestFile,
-      assetManifestFileRelativeUrl,
-      writeOnFileSystem,
+    projectDirectoryUrl,
+    entryPointMap,
+    compileServerOrigin,
+    compileDirectoryRelativeUrl,
+    buildDirectoryUrl,
+    assetManifestFile,
+    assetManifestFileRelativeUrl,
+    writeOnFileSystem,
 
-      format,
-      systemJsUrl,
-      babelPluginMap,
-      transformTopLevelAwait,
-      node,
-      browser,
-
-      urlMappings,
-      importResolutionMethod,
-      importMapFileRelativeUrl,
-      importDefaultExtension,
-      externalImportSpecifiers,
-      externalImportUrlPatterns,
-      importPaths,
-
-      urlVersioning,
-      lineBreakNormalization,
-      jsConcatenation,
-      useImportMapToMaximizeCacheReuse,
-
-      minify,
-      minifyJsOptions,
-      minifyCssOptions,
-      minifyHtmlOptions,
-    })
+    format,
+    systemJsUrl,
+    babelPluginMap,
+    transformTopLevelAwait,
+    node,
+    browser,
+
+    urlMappings,
+    importResolutionMethod,
+    importMapFileRelativeUrl,
+    importDefaultExtension,
+    externalImportSpecifiers,
+    externalImportUrlPatterns,
+    importPaths,
+
+    urlVersioning,
+    lineBreakNormalization,
+    jsConcatenation,
+    useImportMapToMaximizeCacheReuse,
+
+    minify,
+    minifyJsOptions,
+    minifyCssOptions,
+    minifyHtmlOptions,
+  })
 
   try {
     await useRollup({
@@ -123,6 +134,25 @@ export const buildUsingRollup = async ({
       }
       throw e
     }
+    if (e.code === "MISSING_EXPORT") {
+      let message = e.message
+      message = message.replace(e.id, (url) => asOriginalUrl(url))
+      message = message.replace(/(www|http:|https:)+[^\s]+[\w]/g, (url) =>
+        asOriginalUrl(url),
+      )
+      const importedFileRollupUrl = e.message.match(/not exported by (.*?),/)[1]
+      const convertSuggestion = await getConvertSuggestion({
+        importedFileRollupUrl,
+        asProjectUrl,
+        asOriginalUrl,
+        projectDirectoryUrl,
+      })
+      const detailedMessage = createDetailedMessage(message, {
+        frame: e.frame,
+        ...convertSuggestion,
+      })
+      throw new Error(detailedMessage, { cause: e })
+    }
     throw e
   }
 
@@ -248,3 +278,33 @@ const formatToRollupFormat = (format) => {
   if (format === "esmodule") return "esm"
   throw new Error(`unexpected format, got ${format}`)
 }
+
+const getConvertSuggestion = async ({
+  importedFileRollupUrl,
+  asProjectUrl,
+  asOriginalUrl,
+  projectDirectoryUrl,
+}) => {
+  const importedFileUrl = asProjectUrl(importedFileRollupUrl)
+  const importedFileContent = await readFile(importedFileUrl)
+  const looksLikeCommonJs =
+    importedFileContent.includes("module.exports = ") ||
+    importedFileContent.includes("exports.")
+
+  if (!looksLikeCommonJs) {
+    return null
+  }
+
+  const importerFileOriginalUrl = asOriginalUrl(importedFileUrl)
+  const importedFileOriginalRelativeUrl = urlToRelativeUrl(
+    importerFileOriginalUrl,
+    projectDirectoryUrl,
+  )
+  return {
+    suggestion: `The file seems written in commonjs, you should use "customCompiler" to convert it to js module
+{
+  "./${importedFileOriginalRelativeUrl}": commonJsToJavaScriptModule
+}
+As documented in https://github.com/jsenv/jsenv-core/blob/master/docs/shared-parameters.md#customcompilers`,
+  }
+}

src/internal/building/createJsenvRollupPlugin.js

@@ -167,6 +167,8 @@ export const createJsenvRollupPlugin = async ({
   let ressourceBuilder
   let rollupEmitFile = () => {}
   let rollupSetAssetSource = () => {}
+  let _rollupGetModuleInfo = () => {}
+  const rollupGetModuleInfo = (id) => _rollupGetModuleInfo(id)
   let importResolver
 
   const emitAsset = ({ fileName, source }) => {
@@ -228,6 +230,7 @@ building ${entryFileRelativeUrls.length} entry files...`)
       // https://rollupjs.org/guide/en/#thisemitfileemittedfile-emittedchunk--emittedasset--string
       rollupEmitFile = (...args) => this.emitFile(...args)
       rollupSetAssetSource = (...args) => this.setAssetSource(...args)
+      _rollupGetModuleInfo = (id) => this.getModuleInfo(id)
 
       let importMapInfoFromHtml = null
       if (htmlEntryPointCount === 1) {
@@ -1176,6 +1179,9 @@ non-js ressources can be used with new URL("${urlRelativeToImporter}", import.me
         buildStats,
       }
     },
+    asOriginalUrl,
+    asProjectUrl,
+    rollupGetModuleInfo,
   }
 }
 

test/build_async_await_commonjs/build_async_await_commonjs.test.js → test/async_await/async_await_build_commonjs.test.js

@@ -1,9 +1,5 @@
 import { assert } from "@jsenv/assert"
-import {
-  resolveDirectoryUrl,
-  urlToRelativeUrl,
-  urlToBasename,
-} from "@jsenv/filesystem"
+import { resolveDirectoryUrl, urlToRelativeUrl } from "@jsenv/filesystem"
 
 import { buildProject } from "@jsenv/core"
 import { jsenvCoreDirectoryUrl } from "@jsenv/core/src/internal/jsenvCoreDirectoryUrl.js"
@@ -18,13 +14,11 @@ const testDirectoryRelativeUrl = urlToRelativeUrl(
   testDirectoryUrl,
   jsenvCoreDirectoryUrl,
 )
-const testDirectoryname = urlToBasename(testDirectoryRelativeUrl)
 const jsenvDirectoryRelativeUrl = `${testDirectoryRelativeUrl}.jsenv`
 const buildDirectoryRelativeUrl = `${testDirectoryRelativeUrl}dist/commonjs`
 const entryPointMap = {
-  [`./${testDirectoryRelativeUrl}${testDirectoryname}.js`]: "./main.cjs",
+  [`./${testDirectoryRelativeUrl}async_await.js`]: "./main.cjs",
 }
-
 await buildProject({
   ...GENERATE_COMMONJS_BUILD_TEST_PARAMS,
   jsenvDirectoryRelativeUrl,

test/async-await/async-await-build-commonjs-untransformed/async-await-build-commonjs-untransformed.test.js → test/async_await/async_await_build_commonjs_untransformed.test.js

@@ -1,6 +1,6 @@
-import { basename } from "path"
 import { assert } from "@jsenv/assert"
 import { resolveUrl, urlToRelativeUrl } from "@jsenv/filesystem"
+
 import { buildProject } from "@jsenv/core"
 import { jsenvCoreDirectoryUrl } from "@jsenv/core/src/internal/jsenvCoreDirectoryUrl.js"
 import { requireCommonJsBuild } from "@jsenv/core/test/requireCommonJsBuild.js"
@@ -14,27 +14,23 @@ const testDirectoryRelativeUrl = urlToRelativeUrl(
   testDirectoryUrl,
   jsenvCoreDirectoryUrl,
 )
-const testDirectoryname = basename(testDirectoryRelativeUrl)
 const jsenvDirectoryRelativeUrl = `${testDirectoryRelativeUrl}.jsenv`
 const buildDirectoryRelativeUrl = `${testDirectoryRelativeUrl}dist/commonjs`
-const mainFilename = `${testDirectoryname}.js`
 const entryPointMap = {
-  [`./${testDirectoryRelativeUrl}${mainFilename}`]: "./main.cjs",
+  [`./${testDirectoryRelativeUrl}async_await.js`]: "./main.cjs",
 }
-
 await buildProject({
   ...GENERATE_COMMONJS_BUILD_TEST_PARAMS,
   babelPluginMap: {},
   jsenvDirectoryRelativeUrl,
   buildDirectoryRelativeUrl,
   entryPointMap,
 })
-const {
-  namespace: { ask },
-} = await requireCommonJsBuild({
+const { namespace } = await requireCommonJsBuild({
   ...REQUIRE_COMMONJS_BUILD_TEST_PARAMS,
   buildDirectoryRelativeUrl,
 })
-const actual = await ask()
+
+const actual = await namespace.ask()
 const expected = 42
 assert({ actual, expected })