(custom-resource-handlers): */generated.ts file imports do not support alpha modules

[paulhcsun]

Describe the bug

When a module has a dependency on custom-resource-handlers we will use an script to airlift the necessary files into the package to be released alongside that module.

For the */generated.ts files, the import paths

aws-cdk/packages/@aws-cdk/custom-resource-handlers/lib/custom-resources-framework/modules.ts

Lines 45 to 53 in 45b8398

	class LambdaModule extends ExternalModule {
	public readonly Function = Type.fromName(this, 'Function');
	public readonly SingletonFunction = Type.fromName(this, 'SingletonFunction');
	public readonly FunctionOptions = Type.fromName(this, 'FunctionOptions');
	public constructor() {
	super('../../../aws-lambda');
	}
	}

used only work under the assumption that the file is being airlifted and released alongside aws-cdk-lib and therefore can't be supported for alpha modules.

For now when airlifting custom-resource-handlers into alpha modules, we can only airlift the index.js file and a */generated.ts files must be added to custom-resources-framework/config.ts as ComponentType.NO_OP (i.e.

aws-cdk/packages/@aws-cdk/custom-resource-handlers/lib/custom-resources-framework/config.ts

Lines 226 to 230 in 45b8398

	'aws-redshift-alpha': {
	'cluster-reboot-provider': [
	{
	type: ComponentType.NO_OP,
	sourceCode: path.resolve(__dirname, '..', 'aws-redshift-alpha', 'cluster-parameter-change-reboot-handler', 'index.ts'),

).

Expected Behavior

The import paths in the */generated.ts files should work when they're airlifted into an alpha module.

Current Behavior

The import does not because the import path assumes that the current module is located within aws-cdk-lib.

Reproduction Steps

Add

$customresourcedir/dist/*[^-alpha]/*.generated.ts)
          cr=$(echo $file | rev | cut -d "/" -f 2-3 | rev)
          airlift $cr $cr/*.generated.ts
          ;;

to the aws-redshift-alpha airlift script and run yarn package

Possible Solution

Update the import paths in https://github.com/aws/aws-cdk/blob/main/packages/%40aws-cdk/custom-resource-handlers/lib/custom-resources-framework/modules.ts so that it can be used for alpha modules.

Additional Information/Context

No response

CDK CLI Version

2.121.1

Framework Version

No response

Node.js Version

21.1.0

OS

14.2.1

Language

TypeScript

Language Version

No response

Other information

No response