Planting a Future Breaking Change Today: A launchd Timer Job That Deletes Itself When Done
In a post on DEV Community, a developer presents a method for creating a launchd timer job on macOS that self-destructs after running. The job is configured as a one-shot timer that executes a script, and upon completion, the script deletes the job's own plist file from ~/Library/LaunchAgents. This ensures the job does not persist or run again. The author describes this as 'planting a future breaking change,' highlighting that such a job can be useful for temporary tasks but also carries risk: if the deletion fails (e.g., due to permissions or errors), the job may remain and cause unexpected behavior. The technique relies on launchd's behavior and careful scripting to remove the plist. The post does not provide exact code or specific use cases, but it serves as a cautionary example of how automated self-deletion can lead to breaking changes if not handled properly.
Self-deleting launchd jobs can cause silent failures if deletion logic breaks.