What's the difference between turbo prune web & turbo build and turbo build --filter=web ?

[Sheepeer]

Summary

There're two ways to build project under apps folder, for example, the project's name is web:

1. turbo build --filter=web
2. turbo prune web && cd web && turbo build
   I'm wondering to build web in my docker, after reading the doc, I found turbo prune web --docker && cd web && turbo build is the best way. But I wanna know the difference between the two ways. Anyone help?

Additional information

No response

Example

No response

[anthonyshew]

turbo prune helps to creates a smaller subset of the Workspace to work from for your Docker container while --filter only executes a subset of tasks. turbo prune is a smaller starting point for the tasks that you're going to eventually run.

A larger description of the process can be found here: https://turbo.build/repo/docs/guides/tools/docker

[Sheepeer]

Thanks for your reply :) But according this Dockerfile in examples (https://github.com/vercel/turborepo/blob/main/examples/with-docker/apps/web/Dockerfile), I'm confused why in yarn turbo build --filter=web , the --filter=web is needed while turbo prune web --docker has ran before it. I mean, after running prune, the folder should has no other things unrelated with web? So is there no need to add --filter=web?

[anthonyshew]

Correct, it isn't needed. #9513

Sorry for the confusion.