app.py

import gradio as gr
import torch
import os
import shutil
import requests
import subprocess
from subprocess import getoutput
from huggingface_hub import snapshot_download, HfApi, create_repo

api = HfApi()

hf_token = os.environ.get("HF_TOKEN_WITH_WRITE_PERMISSION")

is_shared_ui = True if "fffiloni/train-dreambooth-lora-sdxl" in os.environ['SPACE_ID'] else False

is_gpu_associated = torch.cuda.is_available()

if is_gpu_associated:
    gpu_info = getoutput('nvidia-smi')
    if("A10G" in gpu_info):
        which_gpu = "A10G"
    elif("T4" in gpu_info):
        which_gpu = "T4"
    else:
        which_gpu = "CPU"

def change_training_setup(training_type):
    if training_type == "style" :
        return 1000, 500
    elif training_type == "concept" :
        return 2000, 1000

def swap_hardware(hf_token, hardware="cpu-basic"):
    hardware_url = f"https://huggingface.co/spaces/{os.environ['SPACE_ID']}/hardware"
    headers = { "authorization" : f"Bearer {hf_token}"}
    body = {'flavor': hardware}
    requests.post(hardware_url, json = body, headers=headers)




def swap_sleep_time(sleep_time):
    sleep_time_url = f"https://huggingface.co/api/spaces/{os.environ['SPACE_ID']}/sleeptime"
    headers = { "authorization" : f"Bearer {hf_token}"}
    body = {'seconds':sleep_time}
    requests.post(sleep_time_url,json=body,headers=headers)


def get_sleep_time():
    sleep_time_url = f"https://huggingface.co/api/spaces/{os.environ['SPACE_ID']}"
    headers = { "authorization" : f"Bearer {hf_token}"}
    response = requests.get(sleep_time_url,headers=headers)
    try:
        gcTimeout = response.json()['runtime']['gcTimeout']
    except:
        gcTimeout = None
    
    return gcTimeout

def check_sleep_time():
    sleep_time = get_sleep_time()
    if sleep_time is None :
        return sleep_time, gr.update(visible=True), gr.update(visible=True), gr.update(visible=True), gr.update(visible=True), gr.update(visible=True), gr.update(visible=True)
    else :
        return sleep_time, gr.update(visible=False), gr.update(visible=False), gr.update(visible=False), gr.update(visible=False), gr.update(visible=False), gr.update(visible=False)
    
def train_dreambooth_blora_sdxl(instance_data_dir, b_lora_trained_folder, instance_prompt, class_prompt, max_train_steps, checkpoint_steps):
    
    script_filename = "train_dreambooth_b-lora_sdxl.py"  # Assuming it's in the same folder

    command = [
        "accelerate",
        "launch",
        script_filename,  # Use the local script
        "--pretrained_model_name_or_path=stabilityai/stable-diffusion-xl-base-1.0",
        f"--instance_data_dir={instance_data_dir}",
        f"--output_dir={b_lora_trained_folder}",
        f"--instance_prompt='{instance_prompt}'",
        f"--class_prompt={class_prompt}",
        #f"--validation_prompt=a teddy bear in {instance_prompt} style",
        "--num_validation_images=1",
        "--validation_epochs=500",
        "--resolution=1024",
        "--rank=64",
        "--train_batch_size=1",
        "--learning_rate=5e-5",
        "--lr_scheduler=constant",
        "--lr_warmup_steps=0",
        f"--max_train_steps={max_train_steps}",
        f"--checkpointing_steps={checkpoint_steps}",
        "--seed=0",
        "--gradient_checkpointing",
        "--use_8bit_adam",
        "--mixed_precision=fp16",
        "--push_to_hub",
        f"--hub_token={hf_token}"
    ]

    try:
        subprocess.run(command, check=True)
        print("Training is finished!")
    
    except subprocess.CalledProcessError as e:
        print(f"An error occurred: {e}")


def clear_directory(directory_path):
    # Check if the directory exists
    if os.path.exists(directory_path):
        # Iterate over all the files and directories inside the specified directory
        for filename in os.listdir(directory_path):
            file_path = os.path.join(directory_path, filename)
            try:
                # Check if it is a file or a directory and remove accordingly
                if os.path.isfile(file_path) or os.path.islink(file_path):
                    os.unlink(file_path)  # Remove the file
                elif os.path.isdir(file_path):
                    shutil.rmtree(file_path)  # Remove the directory
            except Exception as e:
                print(f'Failed to delete {file_path}. Reason: {e}')
    else:
        print(f'The directory {directory_path} does not exist.')

def main(image_path, b_lora_trained_folder, instance_prompt, class_prompt, training_type, training_steps):

    if is_shared_ui:
        raise gr.Error("This Space only works in duplicated instances")

    if not is_gpu_associated:
        raise gr.Error("Please associate a T4 or A10G GPU for this Space")

    if image_path == None:
        raise gr.Error("You forgot to specify an image reference")

    if b_lora_trained_folder == "":
        raise gr.Error("You forgot to specify a name for you model")

    if instance_prompt == "":
        raise gr.Error("You forgot to specify an instance prompt")

    #sleep_time = get_sleep_time(hf_token)
    #if sleep_time:
    #swap_sleep_time(hf_token, 36000)
    
    local_dir = "image_to_train"
    # Check if the directory exists and create it if necessary
    if not os.path.exists(local_dir):
        os.makedirs(local_dir)
    else :
        directory_to_clear = local_dir
        clear_directory(directory_to_clear)

    shutil.copy(image_path, local_dir)
    print(f"source image has been copied in {local_dir} directory")

    if training_type == "style":
        checkpoint_steps = 500
    elif training_type == "concept" :
        checkpoint_steps = 1000

    max_train_steps = training_steps
    
    train_dreambooth_blora_sdxl(local_dir, b_lora_trained_folder, instance_prompt, class_prompt, max_train_steps, checkpoint_steps)
    
    your_username = api.whoami(token=hf_token)["name"]

    #swap_hardware(hardware="cpu-basic")
    swap_sleep_time(300)
    
    return f"Done, your trained model has been stored in your models library: {your_username}/{b_lora_trained_folder}"

css = """
#col-container {max-width: 780px; margin-left: auto; margin-right: auto;}

div#warning-ready {
    background-color: #ecfdf5;
    padding: 0 10px 5px;
    margin: 20px 0;
}
div#warning-ready > .gr-prose > h2, div#warning-ready > .gr-prose > p {
    color: #057857!important;
}
div#warning-duplicate {
    background-color: #ebf5ff;
    padding: 0 10px 5px;
    margin: 20px 0;
}
div#warning-duplicate > .gr-prose > h2, div#warning-duplicate > .gr-prose > p {
    color: #0f4592!important;
}
div#warning-duplicate strong {
    color: #0f4592;
}
p.actions {
    display: flex;
    align-items: center;
    margin: 20px 0;
}
div#warning-duplicate .actions a {
    display: inline-block;
    margin-right: 10px;
}
div#warning-setgpu {
    background-color: #fff4eb;
    padding: 0 10px 5px;
    margin: 20px 0;
}
div#warning-setgpu > .gr-prose > h2, div#warning-setgpu > .gr-prose > p {
    color: #92220f!important;
}
div#warning-setgpu a, div#warning-setgpu b {
    color: #91230f;
}
div#warning-setgpu p.actions > a {
    display: inline-block;
    background: #1f1f23;
    border-radius: 40px;
    padding: 6px 24px;
    color: antiquewhite;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.2em;
}
"""
with gr.Blocks(css=css) as demo:
    with gr.Column(elem_id="col-container"):
        if is_shared_ui:
            top_description = gr.HTML(f'''
                <div class="gr-prose">
                    <h2><svg xmlns="http://www.w3.org/2000/svg" width="18px" height="18px" style="margin-right: 0px;display: inline-block;"fill="none"><path fill="#fff" d="M7 13.2a6.3 6.3 0 0 0 4.4-10.7A6.3 6.3 0 0 0 .6 6.9 6.3 6.3 0 0 0 7 13.2Z"/><path fill="#fff" fill-rule="evenodd" d="M7 0a6.9 6.9 0 0 1 4.8 11.8A6.9 6.9 0 0 1 0 7 6.9 6.9 0 0 1 7 0Zm0 0v.7V0ZM0 7h.6H0Zm7 6.8v-.6.6ZM13.7 7h-.6.6ZM9.1 1.7c-.7-.3-1.4-.4-2.2-.4a5.6 5.6 0 0 0-4 1.6 5.6 5.6 0 0 0-1.6 4 5.6 5.6 0 0 0 1.6 4 5.6 5.6 0 0 0 4 1.7 5.6 5.6 0 0 0 4-1.7 5.6 5.6 0 0 0 1.7-4 5.6 5.6 0 0 0-1.7-4c-.5-.5-1.1-.9-1.8-1.2Z" clip-rule="evenodd"/><path fill="#000" fill-rule="evenodd" d="M7 2.9a.8.8 0 1 1 0 1.5A.8.8 0 0 1 7 3ZM5.8 5.7c0-.4.3-.6.6-.6h.7c.3 0 .6.2.6.6v3.7h.5a.6.6 0 0 1 0 1.3H6a.6.6 0 0 1 0-1.3h.4v-3a.6.6 0 0 1-.6-.7Z" clip-rule="evenodd"/></svg>
                    Attention: this Space need to be duplicated to work</h2>
                    <p class="main-message">
                        To make it work, <strong>duplicate the Space</strong> and run it on your own profile using a <strong>private</strong> GPU (T4-small or A10G-small).<br />
                        A T4 costs <strong>US$0.60/h</strong>, so it should cost < US$1 to train most models.
                    </p>
                    <p class="actions">
                        <a href="https://huggingface.co/spaces/{os.environ['SPACE_ID']}?duplicate=true">
                            <img src="https://huggingface.co/datasets/huggingface/badges/resolve/main/duplicate-this-space-lg-dark.svg" alt="Duplicate this Space" />
                        </a>
                        to start training your own B-LoRa model
                    </p>
                </div>
            ''', elem_id="warning-duplicate")
        else:
            if(is_gpu_associated):
                top_description = gr.HTML(f'''
                        <div class="gr-prose">
                            <h2><svg xmlns="http://www.w3.org/2000/svg" width="18px" height="18px" style="margin-right: 0px;display: inline-block;"fill="none"><path fill="#fff" d="M7 13.2a6.3 6.3 0 0 0 4.4-10.7A6.3 6.3 0 0 0 .6 6.9 6.3 6.3 0 0 0 7 13.2Z"/><path fill="#fff" fill-rule="evenodd" d="M7 0a6.9 6.9 0 0 1 4.8 11.8A6.9 6.9 0 0 1 0 7 6.9 6.9 0 0 1 7 0Zm0 0v.7V0ZM0 7h.6H0Zm7 6.8v-.6.6ZM13.7 7h-.6.6ZM9.1 1.7c-.7-.3-1.4-.4-2.2-.4a5.6 5.6 0 0 0-4 1.6 5.6 5.6 0 0 0-1.6 4 5.6 5.6 0 0 0 1.6 4 5.6 5.6 0 0 0 4 1.7 5.6 5.6 0 0 0 4-1.7 5.6 5.6 0 0 0 1.7-4 5.6 5.6 0 0 0-1.7-4c-.5-.5-1.1-.9-1.8-1.2Z" clip-rule="evenodd"/><path fill="#000" fill-rule="evenodd" d="M7 2.9a.8.8 0 1 1 0 1.5A.8.8 0 0 1 7 3ZM5.8 5.7c0-.4.3-.6.6-.6h.7c.3 0 .6.2.6.6v3.7h.5a.6.6 0 0 1 0 1.3H6a.6.6 0 0 1 0-1.3h.4v-3a.6.6 0 0 1-.6-.7Z" clip-rule="evenodd"/></svg>
                            You have successfully associated a {which_gpu} GPU to the B-LoRa Training Space 🎉</h2>
                            <p>
                                You can now train your model! You will be billed by the minute from when you activated the GPU until when it is turned off.
                            </p> 
                        </div>
                ''', elem_id="warning-ready")
            else:
                top_description = gr.HTML(f'''
                        <div class="gr-prose">
                        <h2><svg xmlns="http://www.w3.org/2000/svg" width="18px" height="18px" style="margin-right: 0px;display: inline-block;"fill="none"><path fill="#fff" d="M7 13.2a6.3 6.3 0 0 0 4.4-10.7A6.3 6.3 0 0 0 .6 6.9 6.3 6.3 0 0 0 7 13.2Z"/><path fill="#fff" fill-rule="evenodd" d="M7 0a6.9 6.9 0 0 1 4.8 11.8A6.9 6.9 0 0 1 0 7 6.9 6.9 0 0 1 7 0Zm0 0v.7V0ZM0 7h.6H0Zm7 6.8v-.6.6ZM13.7 7h-.6.6ZM9.1 1.7c-.7-.3-1.4-.4-2.2-.4a5.6 5.6 0 0 0-4 1.6 5.6 5.6 0 0 0-1.6 4 5.6 5.6 0 0 0 1.6 4 5.6 5.6 0 0 0 4 1.7 5.6 5.6 0 0 0 4-1.7 5.6 5.6 0 0 0 1.7-4 5.6 5.6 0 0 0-1.7-4c-.5-.5-1.1-.9-1.8-1.2Z" clip-rule="evenodd"/><path fill="#000" fill-rule="evenodd" d="M7 2.9a.8.8 0 1 1 0 1.5A.8.8 0 0 1 7 3ZM5.8 5.7c0-.4.3-.6.6-.6h.7c.3 0 .6.2.6.6v3.7h.5a.6.6 0 0 1 0 1.3H6a.6.6 0 0 1 0-1.3h.4v-3a.6.6 0 0 1-.6-.7Z" clip-rule="evenodd"/></svg>
                        You have successfully duplicated the B-LoRa Training Space 🎉</h2>
                        <p>There's only one step left before you can train your model: <a href="https://huggingface.co/spaces/{os.environ['SPACE_ID']}/settings" style="text-decoration: underline" target="_blank">attribute a <b>T4-small or A10G-small GPU</b> to it (via the Settings tab)</a> and run the training below.
                        You will be billed by the minute from when you activate the GPU until when it is turned off.</p> 
                        <p class="actions">
                            <a href="https://huggingface.co/spaces/{os.environ['SPACE_ID']}/settings">🔥 &nbsp; Set recommended GPU</a>
                        </p>
                        </div>
                ''', elem_id="warning-setgpu")
        gr.Markdown("# B-LoRa Training UI 💭")        
        with gr.Row():
            image = gr.Image(label="Image Reference", sources=["upload"], type="filepath")

            with gr.Column():
                
                    with gr.Row():
                        current_sleep_time = gr.Textbox(label="current space sleep time")
                        check_sleep_time_btn = gr.Button("check", scale=1)
                    training_type = gr.Radio(label="Training type", choices=["style", "concept"], value="style", visible=False)
                    b_lora_name = gr.Textbox(label="Name your B-LoRa model", placeholder="b_lora_trained_folder", visible=False)
                    with gr.Row():
                        instance_prompt = gr.Textbox(label="Create instance prompt", placeholder="A [v42] <class_prompt>", visible=False)
                        class_prompt = gr.Textbox(label="Specify class prompt", placeholder="style | person | dog ", visible=False)
                    training_steps = gr.Number(label="Training steps", value=1000, interactive=False, visible=False)
                    checkpoint_step = gr.Number(label="checkpoint step", visible=False, value=500)

                    
        
        train_btn = gr.Button("Train B-LoRa", visible=False)
    
        status = gr.Textbox(label="status")

    check_sleep_time_btn.click(
        fn = check_sleep_time,
        inputs = None, 
        outputs = [current_sleep_time, b_lora_name, instance_prompt, class_prompt, training_type, training_steps, train_btn]
    )
    
    training_type.change(
                        fn = change_training_setup,
                        inputs = [training_type],
                        outputs = [training_steps, checkpoint_step]
                    )
    
    train_btn.click(
        fn = main,
        inputs = [image, b_lora_name, instance_prompt, class_prompt, training_type, training_steps],
        outputs = [status]
    )
    
demo.launch(debug=True)