[CLI] Support `--create-branch` option in huggingface-cli upload

[Wauplin]

Originally requested by @TheBloke on slack (private)

It'd be nice if it would also create a branch that didn't exist, or if there was a --create-branch boolean as it seems currently a branch (revision) has to exist before it can be uploaded to?

Q.: would we create it from latest or orphan. Might not be useful if #1655 is implemented as well.

[kxhit]

HI @Wauplin
Would also want to have such a feature that I can upload to a specific new branch in the hf-repo. This will typically be useful when I have a project but want to store different implementation's model ckpt.

[Wauplin]

Hi @kxhit thanks for letting us know. As I see it, it would require to:

• add a --create-branch argument here and here
• add a check in __init__ that --create-branch and --create-pr are not used at the same time (print message otherwise + exit(1)). Also same for --every that is a particular case that we don't want to handle (yet?) IMO
• add a check in __init__ that both --create-branch and --revision are used at the same time
• add a create_branch(..., exists_ok=True) call just after repo creation here
• add a unit test for that

Would you like to open a PR for it?

[kxhit]

Hi, thanks for your guidance. I will take a look but I'm currently busy on my diffusion/diffusers project. It would be great if someone could contribute to it!

[Wauplin]

In the end we went for a simpler solution where branch is automatically create if it doesn't exist. Discussed in #1841 and implemented in #1857.
Therefore closing this issue as "wont fix".