build(polyfills): Remove output format specific logic (#9467)

Author: Luca Forstner

nx.json

@@ -26,7 +26,7 @@
     },
     "build:transpile": {
       "inputs": ["production", "^production"],
-      "dependsOn": ["^build:transpile:uncached", "^build:transpile", "build:transpile:uncached"],
+      "dependsOn": ["^build:transpile"],
       "outputs": ["{projectRoot}/build/npm", "{projectRoot}/build/esm", "{projectRoot}/build/cjs"]
     },
     "build:types": {

packages/angular-ivy/package.json

@@ -67,7 +67,6 @@
       "build:transpile": {
         "dependsOn": [
           "^build:transpile",
-          "^build:transpile:uncached",
           "^build:types"
         ]
       }

packages/angular/package.json

@@ -71,7 +71,6 @@
       "build:transpile": {
         "dependsOn": [
           "^build:transpile",
-          "^build:transpile:uncached",
           "^build:types"
         ]
       }

packages/utils/package.json

@@ -34,7 +34,6 @@
     "build": "run-p build:transpile build:types",
     "build:dev": "yarn build",
     "build:transpile": "yarn ts-node scripts/buildRollup.ts",
-    "build:transpile:uncached": "yarn ts-node scripts/buildRollup.ts",
     "build:types": "run-s build:types:core build:types:downlevel",
     "build:types:core": "tsc -p tsconfig.types.json",
     "build:types:downlevel": "yarn downlevel-dts build/types build/types-ts3.8 --to ts3.8",

packages/utils/rollup.npm.config.js

@@ -1,9 +1,3 @@
 import { makeBaseNPMConfig, makeNPMConfigVariants } from '../../rollup/index.js';
 
-export default makeNPMConfigVariants(
-  makeBaseNPMConfig({
-    // We build the polyfills separately because they're not included in the top-level exports of the package, in order
-    // to keep them out of the public API.
-    entrypoints: ['src/index.ts', 'src/buildPolyfills/index.ts'],
-  }),
-);
+export default makeNPMConfigVariants(makeBaseNPMConfig());

packages/utils/scripts/buildRollup.ts

@@ -14,17 +14,3 @@ run('yarn rollup -c rollup.npm.config.js');
 // We want to distribute the README because it contains the MIT license blurb from Sucrase and Rollup
 fs.copyFileSync('src/buildPolyfills/README.md', 'build/cjs/buildPolyfills/README.md');
 fs.copyFileSync('src/buildPolyfills/README.md', 'build/esm/buildPolyfills/README.md');
-
-// Because we import our polyfills from `@sentry/utils/cjs/buildPolyfills` and `@sentry/utils/esm/buildPolyfills` rather
-// than straight from `@sentry/utils` (so as to avoid having them in the package's public API), when tests run, they'll
-// expect to find `cjs` and `esm` at the root level of the repo.
-try {
-  fs.symlinkSync('build/cjs', 'cjs');
-} catch (oO) {
-  // if we get here, it's because the symlink already exists, so we're good
-}
-try {
-  fs.symlinkSync('build/esm', 'esm');
-} catch (oO) {
-  // same as above
-}

packages/utils/src/buildPolyfills/README.md

@@ -1,6 +1,6 @@
 ## Build Polyfills
 
-This is a collection of syntax and import/export polyfills either copied directly from or heavily inspired by those used by [Rollup](https://github.com/rollup/rollup) and [Sucrase](https://github.com/alangpierce/sucrase). When either tool uses one of these polyfills during a build, it injects the function source code into each file needing the function, which can lead to a great deal of duplication. For our builds, we have therefore implemented something similar to [`tsc`'s `importHelpers` behavior](https://www.typescriptlang.org/tsconfig#importHelpers): Instead of leaving the polyfills injected in multiple places, we instead replace each injected function with an `import` or `require` statement, pulling from the CJS or ESM builds as appropriate. (In other words, the injected `import` statements import from `@sentry/utils/esm/buildPolyfills` and the injected `require` statements pull from `@sentry/utils/cjs/buildPolyfills/`. Because these functions should never be part of the public API, they're not exported from the package directly.)
+This is a collection of syntax and import/export polyfills either copied directly from or heavily inspired by those used by [Rollup](https://github.com/rollup/rollup) and [Sucrase](https://github.com/alangpierce/sucrase). When either tool uses one of these polyfills during a build, it injects the function source code into each file needing the function, which can lead to a great deal of duplication. For our builds, we have therefore implemented something similar to [`tsc`'s `importHelpers` behavior](https://www.typescriptlang.org/tsconfig#importHelpers): Instead of leaving the polyfills injected in multiple places, we instead replace each injected function with an `import` or `require` statement.
 
 Note that not all polyfills are currently used by the SDK, but all are included here for future compatitibility, should they ever be needed. Also, since we're never going to be calling these directly from within another TS file, their types are fairly generic. In some cases testing required more specific types, which can be found in the test files.
 

packages/utils/src/index.ts

@@ -34,3 +34,4 @@ export * from './cache';
 export * from './eventbuilder';
 export * from './anr';
 export * from './lru';
+export * from './buildPolyfills';

rollup/plugins/extractPolyfillsPlugin.js

@@ -40,6 +40,13 @@ export function makeExtractPolyfillsPlugin() {
         return null;
       }
 
+      // The index.js file of the tuils package will include identifiers named after polyfills so we would inject the
+      // polyfills, however that would override the exports so we should just skip that file.
+      const isUtilsPackage = process.cwd().endsWith('packages/utils');
+      if (isUtilsPackage && sourceFile === 'index.js') {
+        return null;
+      }
+
       const parserOptions = {
         sourceFileName: sourceFile,
         // We supply a custom parser which wraps the provided `acorn` parser in order to override the `ecmaVersion` value.
@@ -187,9 +194,7 @@ function createImportOrRequireNode(polyfillNodes, currentSourceFile, moduleForma
   // relative
   const isUtilsPackage = process.cwd().endsWith('packages/utils');
   const importSource = literal(
-    isUtilsPackage
-      ? `./${path.relative(path.dirname(currentSourceFile), 'buildPolyfills')}`
-      : `@sentry/utils/${moduleFormat}/buildPolyfills`,
+    isUtilsPackage ? `./${path.relative(path.dirname(currentSourceFile), 'buildPolyfills')}` : '@sentry/utils',
   );
 
   // This is the `x, y, z` of inside of `import { x, y, z }` or `var { x, y, z }`