feat(wasm): add include/exclude options for wasm plugin. (#1558)

packages/wasm/README.md

@@ -46,6 +46,20 @@ Then call `rollup` either via the [CLI](https://www.rollupjs.org/guide/en/#comma
 
 ## Options
 
+### `exclude`
+
+Type: `String` | `Array[...String]`<br>
+Default: `null`
+
+A [picomatch pattern](https://github.com/micromatch/picomatch), or array of patterns, which specifies the files in the build the plugin should _ignore_. By default no files are ignored.
+
+### `include`
+
+Type: `String` | `Array[...String]`<br>
+Default: `null`
+
+A [picomatch pattern](https://github.com/micromatch/picomatch), or array of patterns, which specifies the files in the build the plugin should operate on. By default all wasm files are targeted.
+
 ### `sync`
 
 Type: `Array[...String]`<br>

packages/wasm/package.json

@@ -62,6 +62,9 @@
       "optional": true
     }
   },
+  "dependencies": {
+    "@rollup/pluginutils": "^5.0.2"
+  },
   "devDependencies": {
     "@rollup/plugin-typescript": "^9.0.1",
     "del-cli": "^5.0.0",

packages/wasm/src/index.ts

@@ -3,6 +3,7 @@ import * as path from 'path';
 import { createHash } from 'crypto';
 
 import type { Plugin } from 'rollup';
+import { createFilter } from '@rollup/pluginutils';
 
 import type { RollupWasmOptions } from '../types';
 
@@ -19,6 +20,7 @@ export function wasm(options: RollupWasmOptions = {}): Plugin {
 
   const syncFiles = sync.map((x) => path.resolve(x));
   const copies = Object.create(null);
+  const filter = createFilter(options.include, options.exclude);
 
   return {
     name: 'wasm',
@@ -36,6 +38,10 @@ export function wasm(options: RollupWasmOptions = {}): Plugin {
         return getHelpersModule(targetEnv);
       }
 
+      if (!filter(id)) {
+        return null;
+      }
+
       if (!/\.wasm$/.test(id)) {
         return null;
       }
@@ -74,6 +80,10 @@ export function wasm(options: RollupWasmOptions = {}): Plugin {
     },
 
     transform(code, id) {
+      if (!filter(id)) {
+        return null;
+      }
+
       if (code && /\.wasm$/.test(id)) {
         const isSync = syncFiles.indexOf(id) !== -1;
         const publicFilepath = copies[id] ? `'${copies[id].publicFilepath}'` : null;

packages/wasm/types/index.d.ts

@@ -1,4 +1,5 @@
 import type { Plugin } from 'rollup';
+import type { FilterPattern } from '@rollup/pluginutils';
 
 /**
  * - `"auto"` will determine the environment at runtime and invoke the correct methods accordingly
@@ -9,6 +10,18 @@ import type { Plugin } from 'rollup';
 export type TargetEnv = 'auto' | 'auto-inline' | 'browser' | 'node';
 
 export interface RollupWasmOptions {
+  /**
+   * A picomatch pattern, or array of patterns, which specifies the files in the build the plugin
+   * should _ignore_.
+   * By default no files are ignored.
+   */
+  exclude?: FilterPattern;
+  /**
+   * A picomatch pattern, or array of patterns, which specifies the files in the build the plugin
+   * should operate on.
+   * By default all wasm files are targeted.
+   */
+  include?: FilterPattern;
   /**
    * Specifies an array of strings that each represent a WebAssembly file to load synchronously.
    */
@@ -18,7 +31,7 @@ export interface RollupWasmOptions {
    * If `maxFileSize` is set to `0` all files will be copied.
    * Files specified in `sync` to load synchronously are always inlined, regardless of size.
    */
-  maxFileSize?: Number;
+  maxFileSize?: number;
   /**
    * String used to rename the emitted Wasm files.
    */