fix auto_pipeline: pass kwargs to load_config

[yiyixuxu]

This PR fix #4727

We now pass relevant kwargs to load_config() when we retrieve the config file

I only updated for Text2Image here, will update other auto pipelines too if it's ok

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[patrickvonplaten]

Nice job - that looks correct to me!
Can we apply this change also to all other autopipelines to make sure they are also fixed?

[patrickvonplaten]

Super! Sorry, one last thing: Let's maybe add a small test to check that everything works as expected would be nice - e.g. maybe just passing the cache_dir to a dummy model and make sure that both config and model are saved in the same cache dir

[yiyixuxu]

@patrickvonplaten

I think it will be pretty tricky to test, load_config() is called twice here:

first time to find out the original class name for the pipeline, and then it will be called again once we dispatch to the pipeline_class.from_pretrained() - so the config and model will always be saved in the cache_dir the second time we call load_config.

[patrickvonplaten]

Hmm yeah sorry this:

Super! Sorry, one last thing: Let's maybe add a small test to check that everything works as expected would be nice - e.g. maybe just passing the cache_dir to a dummy model and make sure that both config and model are saved in the same cache dir

wasn't very clear / didn't make too much sense 😅

Then let's maybe more or less use the reproducible code snippet here: #4727 (comment) as a way of testing no? Using only_local_files as a way of testing should be easy to set up :-)

Maybe you can write a test similar to this one:

diffusers/tests/pipelines/test_pipelines.py

Line 441 in c4d2823

def test_local_files_only_are_used_when_no_internet(self):

(you don't need to add the mock internet part though)

[yiyixuxu]

@patrickvonplaten

So the code snippet here #4727 (comment) isn't reproducible as it is: I think they happened to have an outdated copy of the cached model.

I made a test to try to recreate this edge case by modifying the commit ID. Let me know if this is ok, or if there is an easier/better way to test.

[patrickvonplaten]

Looks great - thanks!