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import gradio as gr
from huggingface_hub import create_repo, whoami, Repository
import subprocess
import os, shutil

def fork(source_repo, dst_repo, token, repo_type):
    # Creating repos has inconsistent API (https://github.com/huggingface/huggingface_hub/issues/47)
    repo_namespace, dst_id = dst_repo.split("/")
    username = whoami(token)
    org = None
    if repo_namespace != username:
      org = repo_namespace

    # Create the destination repo
    if repo_type in ["spaces", "dataset"]:
        # For some reason create_repo does not allow repo_type="model"..., even if documentation says
        # that's the default.
        create_repo(dst_id, token=token, organization=org, repo_type=repo_type, space_sdk="static")
    else:
        create_repo(dst_id, token=token, organization=org)
    
    # Clone source repo
    endpoint = "https://huggingface.co/"
    if repo_type in ["spaces", "dataset"]:
        endpoint += repo_type
    full_path = endpoint + "/" + source_repo
    local_dir = "hub/" + source_repo
    repo = Repository(local_dir=local_dir, clone_from=full_path)
    
    # Change remote origin
    command = f"git remote set-url origin https://user:{token}@huggingface.co/"
    if repo_type in ["spaces", "dataset"]:
      command += repo_type
    command += dst_repo
    subprocess.run(
        command.split(),
        stderr=subprocess.PIPE,
        stdout=subprocess.PIPE,
        encoding="utf-8",
        check=True,
        cwd=local_dir,
    )
    
    # Push!
    subprocess.run(
        "git push --force origin main".split(),
        stderr=subprocess.PIPE,
        stdout=subprocess.PIPE,
        encoding="utf-8",
        check=True,
        cwd=local_dir,
    )

    # Clean up
    for filename in os.listdir(local_dir):
      file_path = os.path.join(local_dir, filename)
      if os.path.isfile(file_path) or os.path.islink(file_path):
          os.unlink(file_path)
      elif os.path.isdir(file_path):
          shutil.rmtree(file_path)

    return endpoint + "/" + dst_repo

interface = gr.Interface(
    fn=fork,
    inputs=[
        gr.inputs.Textbox(placeholder="Source repository"),
        gr.inputs.Textbox(placeholder="Destination repository name"),
        gr.inputs.Textbox(placeholder="Write access token"),
        gr.inputs.Dropdown(choices=["model", "dataset", "space"])
    ],
    outputs=["textbox"],
    allow_flagging=False,
    live=False,
)
interface.launch(enable_queue=True)