oncePeer enhancement - Trigger messages only when manifest changes

[caueasantos]

Let's assume we have a single gitops repo responsible for hold app configurations (creating a clear separation of source code and configuration, but without spreading around into multiple repositorys) as follow:

TARGET REVISION: HEAD
├── App-1
│   ├── base
│   └── overlays
├── App-2
│   ├── base
│   └── overlays
└── App-3
    ├── base
    └── overlays

The on-deployed will trigger a new slack message for each new revision which is completely fine and expected, however if you promote a change to App 1 synchronization messages still being sent to App 2 and App 3. Is there any chance to also filter app paths associated with each revision ?