fix(NODE-6731): fix and test webpack bundling (#71)

Author: durran

.github/workflows/webpack.yml

@@ -0,0 +1,42 @@
+name: Webpack
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Use Node.js LTS
+      uses: actions/setup-node@v4
+      with:
+        node-version: 'lts/*'
+
+    - name: "Install dependencies"
+      shell: bash
+      run: |
+        npm install
+
+    - name: "Install dependencies in the Webpack bundle test package"
+      shell: bash
+      working-directory: ./test/bundling/webpack
+      run: |
+        npm install
+
+    - name: "Install local zstd into Webpack bundle test package"
+      shell: bash
+      working-directory: ./test/bundling/webpack
+      run: |
+        npm run install:zstd
+
+    - name: "Run webpack build"
+      shell: bash
+      working-directory: ./test/bundling/webpack
+      run: |
+        npm run build

lib/index.js

@@ -6,7 +6,14 @@ function load() {
   try {
     return require('../build/Release/zstd.node');
   } catch {
-    return require('../build/Debug/zstd.node');
+    // Webpack will fail when just returning the require, so we need to wrap
+    // in a try/catch and rethrow.
+    /* eslint no-useless-catch: 0 */
+    try {
+      return require('../build/Debug/zstd.node');
+    } catch (error) {
+      throw error;
+    }
   }
 }
 

test/bundling/webpack/.gitignore

@@ -0,0 +1,2 @@
+dist/
+*.tgz

test/bundling/webpack/install_zstd.cjs

@@ -0,0 +1,24 @@
+'use strict';
+
+const { execSync } = require('node:child_process');
+const { readFileSync } = require('node:fs');
+const { resolve } = require('node:path');
+
+const xtrace = (...args) => {
+  console.log(`running: ${args[0]}`);
+  return execSync(...args);
+};
+
+const zstdRoot = resolve(__dirname, '../../..');
+console.log(`zstd package root: ${zstdRoot}`);
+
+const zstdVersion = JSON.parse(
+  readFileSync(resolve(zstdRoot, 'package.json'), { encoding: 'utf8' })
+).version;
+console.log(`zstd Version: ${zstdVersion}`);
+
+xtrace('npm pack --pack-destination test/bundling/webpack', { cwd: zstdRoot });
+
+xtrace(`npm install --no-save mongodb-js-zstd-${zstdVersion}.tgz`);
+
+console.log('zstd installed!');