Custom webpack config does not work with async functions anymore

[woppa684]

Current Behavior

Having a custom webpack config as an async function does not work anymore

Expected Behavior

A custom webpack config can be an async function

GitHub Repo

No response

Steps to Reproduce

This functional was broken in 7b3f45b
where the merge function changed from returning the result of the async function directly, to wanting to do something with the output. The comment above the function even states that the function can be async. In that case it must be awaited. See

nx/packages/angular/src/builders/utilities/webpack.ts

Line 24 in 2a70629

// The extra Webpack configuration file can export a synchronous or asynchronous function,

Nx Report

Node           : 20.15.0
OS             : win32-x64
Native Target  : x86_64-windows
pnpm           : 9.7.0

nx                 : 19.8.2
@nx/js             : 19.8.2
@nx/jest           : 19.8.2
@nx/linter         : 19.8.2
@nx/eslint         : 19.8.2
@nx/workspace      : 19.8.2
@nx/angular        : 19.8.2
@nx/devkit         : 19.8.2
@nx/eslint-plugin  : 19.8.2
@nx/plugin         : 19.8.2
@nrwl/tao          : 19.8.2
@nx/web            : 19.8.2
@nx/webpack        : 19.8.2
typescript         : 5.5.4
---------------------------------------
Community plugins:
@ngrx/store       : 18.0.2
---------------------------------------
Local workspace plugins:
         tools

Failure Logs

C:\Repo\node_modules\.pnpm\r[email protected]\node_modules\rxjs\dist\cjs\internal\util\reportUnhandledError.js:13
            throw err;
            ^
TypeError: Cannot read properties of undefined (reading 'find')
    at mergeCustomWebpackConfig (C:\Repo\node_modules\.pnpm\@[email protected]_6a73c5d7a5ewxppdi4fq6xr76m\node_modules\@nx\angular\src\builders\utilities\webpack.js:32:45)
    at initialize (C:\Repo\node_modules\.pnpm\@[email protected]_@[email protected]_@[email protected]_@a_i326fgdiiy6b3oafnjsagxikom\node_modules\@angular-devkit\build-angular\src\builders\browser\index.js:71:29)
    at C:\Repo\node_modules\.pnpm\@[email protected]_@[email protected]_@[email protected]_@a_i326fgdiiy6b3oafnjsagxikom\node_modules\@angular-devkit\build-angular\src\builders\browser\index.js:95:32

Package Manager Version

No response

Operating System

• macOS
• Linux
• Windows
• Other (Please specify)

Additional Information

No response

[github-actions]

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