feat(bundling): add option to esbuild to not bundle

docs/generated/packages/esbuild/executors/esbuild.json

@@ -41,6 +41,11 @@
         "items": { "type": "string" },
         "default": []
       },
+      "bundle": {
+        "type": "boolean",
+        "description": "Whether to bundle the main entry point and additional entry points. Set to false to keep individual output files.",
+        "default": true
+      },
       "format": {
         "type": "array",
         "description": "List of module formats to output. Defaults to matching format from tsconfig (e.g. CJS for CommonJS, and ESM otherwise).",

e2e/esbuild/src/esbuild.test.ts

@@ -117,4 +117,22 @@ describe('EsBuild Plugin', () => {
     expect(runResult).toMatch(/Hello world/);
     expect(runResult).toMatch(/Hello from child lib/);
   }, 300_000);
+
+  it('should support non-bundle builds', () => {
+    const myPkg = uniq('my-pkg');
+    runCLI(`generate @nrwl/js:lib ${myPkg} --bundler=esbuild`);
+    updateFile(`libs/${myPkg}/src/lib/${myPkg}.ts`, `console.log('Hello');\n`);
+    updateFile(`libs/${myPkg}/src/index.ts`, `import './lib/${myPkg}.js';\n`);
+
+    runCLI(`build ${myPkg} --bundle=false`);
+
+    checkFilesExist(
+      `dist/libs/${myPkg}/lib/${myPkg}.js`,
+      `dist/libs/${myPkg}/index.js`
+    );
+    // Test files are excluded in tsconfig (e.g. tsconfig.lib.json)
+    checkFilesDoNotExist(`dist/libs/${myPkg}/lib/${myPkg}.spec.js`);
+    // Can run package (package.json fields are correctly generated)
+    expect(runCommand(`node dist/libs/${myPkg}`)).toMatch(/Hello/);
+  }, 300_000);
 });

packages/esbuild/package.json

@@ -34,6 +34,7 @@
     "@nrwl/workspace": "file:../workspace",
     "chalk": "4.1.0",
     "dotenv": "~10.0.0",
+    "fast-glob": "3.2.7",
     "fs-extra": "^10.1.0",
     "tslib": "^2.3.0"
   },

packages/esbuild/src/executors/esbuild/lib/build-esbuild-options.spec.ts

@@ -3,6 +3,7 @@ import { ExecutorContext } from 'nx/src/config/misc-interfaces';
 
 describe('buildEsbuildOptions', () => {
   const context: ExecutorContext = {
+    projectName: 'myapp',
     workspace: {
       version: 2,
       projects: {
@@ -27,6 +28,7 @@ describe('buildEsbuildOptions', () => {
       buildEsbuildOptions(
         'esm',
         {
+          bundle: true,
           platform: 'browser',
           main: 'apps/myapp/src/index.ts',
           outputPath: 'dist/apps/myapp',
@@ -62,6 +64,7 @@ describe('buildEsbuildOptions', () => {
       buildEsbuildOptions(
         'esm',
         {
+          bundle: true,
           platform: 'browser',
           main: 'apps/myapp/src/index.ts',
           additionalEntryPoints: ['apps/myapp/src/extra-entry.ts'],
@@ -98,6 +101,7 @@ describe('buildEsbuildOptions', () => {
       buildEsbuildOptions(
         'cjs',
         {
+          bundle: true,
           platform: 'browser',
           main: 'apps/myapp/src/index.ts',
           outputPath: 'dist/apps/myapp',
@@ -133,6 +137,7 @@ describe('buildEsbuildOptions', () => {
       buildEsbuildOptions(
         'cjs',
         {
+          bundle: true,
           platform: 'node',
           main: 'apps/myapp/src/index.ts',
           outputPath: 'dist/apps/myapp',
@@ -165,6 +170,7 @@ describe('buildEsbuildOptions', () => {
       buildEsbuildOptions(
         'esm',
         {
+          bundle: true,
           platform: 'node',
           main: 'apps/myapp/src/index.ts',
           outputPath: 'dist/apps/myapp',
@@ -200,6 +206,7 @@ describe('buildEsbuildOptions', () => {
       buildEsbuildOptions(
         'cjs',
         {
+          bundle: true,
           platform: 'node',
           main: 'apps/myapp/src/index.ts',
           outputPath: 'dist/apps/myapp',
@@ -236,6 +243,7 @@ describe('buildEsbuildOptions', () => {
       buildEsbuildOptions(
         'esm',
         {
+          bundle: true,
           platform: 'node',
           main: 'apps/myapp/src/index.ts',
           outputPath: 'dist/apps/myapp',

packages/esbuild/src/executors/esbuild/lib/build-esbuild-options.ts

@@ -1,12 +1,15 @@
 import * as esbuild from 'esbuild';
+import * as path from 'path';
+import { parse } from 'path';
+import * as glob from 'fast-glob';
 import { getClientEnvironment } from '../../../utils/environment-variables';
 import {
   EsBuildExecutorOptions,
   NormalizedEsBuildExecutorOptions,
 } from '../schema';
 import { ExecutorContext } from 'nx/src/config/misc-interfaces';
 import { joinPathFragments } from 'nx/src/utils/path';
-import { parse } from 'path';
+import { readJsonFile } from 'nx/src/utils/fileutils';
 
 const ESM_FILE_EXTENSION = '.js';
 const CJS_FILE_EXTENSION = '.cjs';
@@ -18,12 +21,9 @@ export function buildEsbuildOptions(
 ): esbuild.BuildOptions {
   const esbuildOptions: esbuild.BuildOptions = {
     ...options.esbuildOptions,
-    entryPoints: options.additionalEntryPoints
-      ? [options.main, ...options.additionalEntryPoints]
-      : [options.main],
     entryNames:
       options.outputHashing === 'all' ? '[dir]/[name].[hash]' : '[dir]/[name]',
-    bundle: true, // TODO(jack): support non-bundled builds
+    bundle: options.bundle,
     external: options.external,
     minify: options.minify,
     platform: options.platform,
@@ -40,12 +40,29 @@ export function buildEsbuildOptions(
     esbuildOptions.define = getClientEnvironment();
   }
 
-  if (options.singleEntry) {
+  if (options.singleEntry && options.bundle) {
     esbuildOptions.outfile = getOutfile(format, options, context);
   } else {
     esbuildOptions.outdir = options.outputPath;
   }
 
+  const entryPoints = options.additionalEntryPoints
+    ? [options.main, ...options.additionalEntryPoints]
+    : [options.main];
+  if (!options.bundle) {
+    const projectRoot = context.workspace.projects[context.projectName].root;
+    const tsconfig = readJsonFile(path.join(context.root, options.tsConfig));
+    const matchedFiles = glob
+      .sync(tsconfig.include ?? [], {
+        cwd: projectRoot,
+        ignore: (tsconfig.exclude ?? []).concat([options.main]),
+      })
+      .map((f) => path.join(projectRoot, f))
+      .filter((f) => !entryPoints.includes(f));
+    entryPoints.push(...matchedFiles);
+  }
+  esbuildOptions.entryPoints = entryPoints;
+
   return esbuildOptions;
 }
 

packages/esbuild/src/executors/esbuild/schema.d.ts

@@ -6,6 +6,7 @@ export interface EsBuildExecutorOptions {
   additionalEntryPoints?: string[];
   assets: AssetGlob[];
   buildableProjectDepsInPackageJsonType?: 'dependencies' | 'peerDependencies';
+  bundle?: boolean;
   deleteOutputPath?: boolean;
   dependenciesFieldType?: boolean;
   esbuildOptions?: Record<string, any>;

packages/esbuild/src/executors/esbuild/schema.json

@@ -40,6 +40,11 @@
       },
       "default": []
     },
+    "bundle": {
+      "type": "boolean",
+      "description": "Whether to bundle the main entry point and additional entry points. Set to false to keep individual output files.",
+      "default": true
+    },
     "format": {
       "type": "array",
       "description": "List of module formats to output. Defaults to matching format from tsconfig (e.g. CJS for CommonJS, and ESM otherwise).",