TargetOptions parameter is not there with custom-esbuild

[shisukei]

Describe the Bug

Hi,

I am currently working on upgrading an Angular 16 application to Angular 17 and I would like to use esbuild. My application requires index.html transformation. This transformation relies on data from the targetOptions parameter.

With version 16, I was using @angular-builders/custom-webpack and it was working fine. Unfortunately, with @angular-builders/custom-esbuild, the targetOptions are not present during the transformation. Instead, it's the content of the index file. Yet the documentation indicates that targetOptions should be accessible.

Minimal Reproduction

Just creating a new Angular 17 application (via ng new), and following the instruction of the doc :

• Adding @angular-builders/custom-esbuild as a dev dependency
• Replacing @angular-devkit/build-angular:application with @angular-builders/custom-esbuild:application and @angular-devkit/build-angular:dev-server with @angular-builders/custom-esbuild:dev-server in angular.json
• Adding index-html-transformer.ts with the following code :

  
  import { Target } from '@angular-devkit/architect/src/input-schema';
  import { json } from '@angular-devkit/core';

type TargetOptions = json.JsonObject & Target;

export default (targetOptions: TargetOptions, indexHtml: string) => { console.log('targetOptions', targetOptions);

const i = indexHtml.indexOf(''); const config = <p>Configuration: ${targetOptions.configuration}</p>; return ${indexHtml.slice(0, i)} ${config} ${indexHtml.slice(i)}; };

- Adding indexHtmlTransformer in angular.json

Here is the result on ng build / ng serve : 

![custom esbuild ko](https://github.com/just-jeb/angular-builders/assets/161057748/02ffb62b-971f-4e49-8d9e-f35e2971d045)

## Expected Behavior

TargetOptions should be there. Or at least, documentation needs an update.

## Environment

<pre><code>
Libs
- @angular/core version: 17.2.0
- @angular-devkit/build-angular version: 17.2.1
- @angular-builders/custom-esbuild: 17.1.0

For Tooling issues:
- Node version: 20.11.1
- Platform: Windows

[cristiandeschamps]

I just got the same error and the arguments seem to have change.

The 1st argument should be indexHtml: string, but get nothing from the 2nd argument (targetOptions).

[Delagen]

Seems packages/custom-esbuild/src/application/index.ts::30 should be something like

return { codePlugins, indexHtmlTransformer: indexHtmlTransformer?.bind(null, options) } as ApplicationBuilderExtensions;

But options param seems only contain target options, not configuration