This PR fixes#2951 and restores the step_callback argument in the
refactored generate() method. Note that this issue states that
"something is still wrong because steps and step are zero." However,
I think this is confusion over the call signature of the callback, which
since the diffusers merge has been `callback(state:PipelineIntermediateState)`
This is the test script that I used to determine that `step` is being passed
correctly:
```
from pathlib import Path
from invokeai.backend import ModelManager, PipelineIntermediateState
from invokeai.backend.globals import global_config_dir
from invokeai.backend.generator import Txt2Img
def my_callback(state:PipelineIntermediateState, total_steps:int):
print(f'callback(step={state.step}/{total_steps})')
def main():
manager = ModelManager(Path(global_config_dir()) / "models.yaml")
model = manager.get_model('stable-diffusion-1.5')
print ('=== TXT2IMG TEST ===')
steps=30
output = next(Txt2Img(model).generate(prompt='banana sushi',
iterations=None,
steps=steps,
step_callback=lambda x: my_callback(x,steps)
)
)
print(f'image={output.image}, seed={output.seed}, steps={output.params.steps}')
if __name__=='__main__':
main()
```
- When a legacy checkpoint model is loaded via --convert_ckpt and its
models.yaml stanza refers to a custom VAE path (using the 'vae:' key),
the custom VAE will be converted and used within the diffusers model.
Otherwise the VAE contained within the legacy model will be used.
- Note that the checkpoint import functions in the CLI or Web UIs
continue to default to the standard stabilityai/sd-vae-ft-mse VAE. This
can be fixed after the fact by editing VAE key using either the CLI or
Web UI.
- Fixes issue #2917
The mkdocs-workflow has been failing over the past week due to
permission denied errors. I *think* this is the result of not passing
the GitHub API token to the workflow, and this is a speculative fix for
the issue.
- This PR turns on pickle scanning before a legacy checkpoint file is
loaded from disk within the checkpoint_to_diffusers module.
- Also miscellaneous diagnostic message cleanup.
- See also #3011 for a similar patch to the 2.3 branch.
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Co-authored-by: gallegonovato <fran-carro@hotmail.es>
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