Matrix Generator with Multiple Git File Paths Creates Duplicate Applications - Expected Behavior?

[duckaraptor]

When using a Matrix generator that combines a Git file generator (with multiple file paths) and a Cluster generator, I'm getting duplicate applications because each file path creates a separate parameter set. I'd like to clarify if this is the expected behavior and understand the recommended approach for merging multiple config files.

apiVersion: argoproj.io/v1alpha1
kind: ApplicationSet
metadata: 
  name:  matrix-demo
  namespace: argocd
spec:
  goTemplate: true
  goTemplateOptions: ["missingkey=error"]
  generators:
    - matrix:
        generators:
          - git:
              repoURL: https://github.com/org/repo.git
              revision: main
              files:
                - path: 'config/env.yaml'
                - path: 'config/matrix-demo/env.yaml'
          - clusters:
              selector:
                matchExpressions: 
                  - key: kambi.com/pending-deletion
                    operator: NotIn
                    values: ["all"]
  template:
    metadata:
      name: '{{ .name }}-matrix-demo'
    spec:
      # ... rest of template

[kostis-codefresh]

The recommended way to "combine configurations" is not to do it on the Argo CD level.

Use Helm hierarchies https://github.com/kostis-codefresh/multi-sources-example/blob/main/example-apps/prod-us.yaml#L19
or Kustomize overlays https://github.com/kostis-codefresh/many-appsets-demo/blob/main/appsets/my-prod-appset.yml#L14