discourse-deprecation-collector Plugin

This plugin will report JS deprecations to the server and increment prometheus metrics. It's designed to help hosting providers roll out breaking changes.

Requires the discourse-prometheus plugin to be installed.

Metric will be created with the name discourse_js_deprecation_count, and with two labels:

• db indicates the relevant site in a multisite cluster
• deprecation_id is the id of the discourse/ember deprecation

For a deprecation to be labelled correctly, its id needs to be added to the list in lib/deprecation_collector/list. Any unrecognised deprecations will be tracked against id=_other.