How to check if installed extensions are used in pipelines

Question

I would like to check which custom installed extensions from VS Marketplace are used in both build and deployment pipelines.

Does Azure DevOps provide any view for that or must it be done manually?

Would tremendously help for extension management.

We are using on premise server ver.: 18.181.31230.2 (Azure DevOps Server 2020 Update 1)

Answer 1

If you're not using YAML pipelines yet, then this extension will allow you to easily query which tasks are used where:

https://marketplace.visualstudio.com/items?itemName=solidify-labs.build-task-explorer

For YAML it's harder since there are multiple ways to template these things and multiple ways to reference a task (by name, by guid, by full name). But when you query the timeline of an actual executed job you'll be able to easily extract the guides and names of the tasks. But you'll need to go fancy with the REST API.