purge HF_HUB_ENABLE_HF_TRANSFER; promote Xet

[Vaibhavs10]

(as the title state - since hf_transfer has no effect w/ xet, let's move to hf_xet)

[sayakpaul]

Thanks for starting it

[sayakpaul]

Let's keep the changes in docker limited to these ones:

diffusers/.github/workflows/build_docker_images.yml

Lines 73 to 77 in f072c64

	- diffusers-pytorch-cpu
	- diffusers-pytorch-cuda
	- diffusers-pytorch-xformers-cuda
	- diffusers-pytorch-minimum-cuda
	- diffusers-doc-builder

[sayakpaul]

Will there be any problems stemming from this in case a repo isn't Xet-transferred? I am guessing this is currently the case i.e., not all repos have gone through this, yet. In that case, would using HF_HUB_ENABLE_HF_TRANSFER have any advantage?

[Vaibhavs10]

good question, all repos on the hub are powered by xet. Hence HF_HUB_ENABLE_HF_TRANSFER has no usage whatsoever there

[DN6]

Thanks 👍🏽

[sayakpaul]

I think if we address #12497 (comment), the CI won't cry.

[Vaibhavs10]

I think if we address #12497 (comment), the CI won't cry.

Sorry for not understanding this correctly - but the whole point is to remove all mentions of hf_transfer (it has no effect on xet repos i.e. 100% of the hub) - so I'd rather fix why the CI is not happy with xet in the first place.

More so, the CI errors look more related to model specific integration test that hub - let me know if my understanding is incorrect.

[yiyixuxu]

cc @DN6
can you take a look? I think this docker-image fail to build pr=12497https://github.com/huggingface/diffusers/actions/runs/18688419900/job/53287370196?pr=12497

[sayakpaul]

I have pushed a change in 708973b, which should fix the issue. The concerned Docker containers were previously not used in our CI (they are there for bookkeeping and will likely be removed soon).

[sayakpaul]

Failing tests are unrelated.