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import os
import shutil
from pathlib import Path
from huggingface_hub import hf_hub_download
def CheckAndDownloadFlux2():
"""Check and download Flux2 Klein model components if needed.
Downloads:
- Flux2 Klein diffusion model to ./include/diffusion_model/
- Qwen3 4B text encoder to ./include/text_encoder/
- Flux VAE to ./include/vae/
"""
# Check for diffusion model
diffusion_dir = "./include/diffusion_model/"
os.makedirs(diffusion_dir, exist_ok=True)
# Look for actual diffusion model files (safetensors, pt, pth) that match flux/klein names, including nested subdirectories
diffusion_candidates = glob.glob(os.path.join(diffusion_dir, "**", "*flux*"), recursive=True) + glob.glob(os.path.join(diffusion_dir, "**", "*klein*"), recursive=True)
flux2_models = [p for p in diffusion_candidates if os.path.isfile(p) and os.path.splitext(p)[1].lower() in (".safetensors", ".pt", ".pth")]
if not flux2_models:
print("Downloading Flux2 Klein diffusion model...")
try:
filename = "split_files/diffusion_models/flux-2-klein-4b.safetensors"
path = hf_hub_download(
repo_id="black-forest-labs/FLUX.2-klein-4B",
filename="flux-2-klein-4b.safetensors",
local_dir=diffusion_dir,
)
# If it downloaded into a subfolder, move it up
if os.path.dirname(filename):
target = os.path.join(diffusion_dir, os.path.basename(filename))
if os.path.exists(path) and not os.path.exists(target):
shutil.move(path, target)
# Cleanup empty subfolders
subfolder = os.path.join(diffusion_dir, filename.split('/')[0])
if os.path.exists(subfolder):
shutil.rmtree(subfolder)
except Exception as e:
print(f"Could not download Flux2 diffusion model: {e}")
# Check for text encoder
text_encoder_dir = "./include/text_encoder/"
os.makedirs(text_encoder_dir, exist_ok=True)
# Look for actual text encoder model files (safetensors, pt, pth) matching qwen/klein, including nested subdirs
qwen_candidates = glob.glob(os.path.join(text_encoder_dir, "**", "*qwen*"), recursive=True) + glob.glob(os.path.join(text_encoder_dir, "**", "*klein*"), recursive=True)
qwen_models = [p for p in qwen_candidates if os.path.isfile(p) and os.path.splitext(p)[1].lower() in (".safetensors", ".pt", ".pth")]
if not qwen_models:
print("Downloading Qwen3 text encoder for Flux2 Klein...")
try:
filename = "split_files/text_encoders/qwen_3_4b.safetensors"
path = hf_hub_download(
repo_id="Comfy-Org/vae-text-encorder-for-flux-klein-4b",
filename=filename,
local_dir=text_encoder_dir,
)
# If it downloaded into a subfolder, move it up
if os.path.dirname(filename):
target = os.path.join(text_encoder_dir, os.path.basename(filename))
if os.path.exists(path) and not os.path.exists(target):
shutil.move(path, target)
# Cleanup empty subfolders
subfolder = os.path.join(text_encoder_dir, filename.split('/')[0])
if os.path.exists(subfolder):
shutil.rmtree(subfolder)
except Exception as e:
print(f"Could not download Qwen text encoder: {e}")
# Check for VAE
vae_dir = "./include/vae/"
os.makedirs(vae_dir, exist_ok=True)
vae_models = glob.glob(f"{vae_dir}*.safetensors") + glob.glob(f"{vae_dir}*.pt")
if not vae_models:
print("Downloading Flux VAE...")
try:
filename = "split_files/vae/flux2-vae.safetensors"
path = hf_hub_download(
repo_id="Comfy-Org/flux2-dev",
filename=filename,
local_dir=vae_dir,
)
# If it downloaded into a subfolder, move it up
if os.path.dirname(filename):
target = os.path.join(vae_dir, os.path.basename(filename))
if os.path.exists(path) and not os.path.exists(target):
shutil.move(path, target)
# Cleanup empty subfolders
subfolder = os.path.join(vae_dir, filename.split('/')[0])
if os.path.exists(subfolder):
shutil.rmtree(subfolder)
except Exception as e:
print(f"Could not download Flux VAE: {e}")
def CheckAndDownload():
"""#### Check and download all the necessary safetensors and checkpoints models"""
if glob.glob("./include/checkpoints/*.safetensors") == []:
hf_hub_download(
repo_id="Lykon/DreamShaper",
filename="DreamShaper_8_pruned.safetensors",
local_dir="./include/checkpoints/",
)
if glob.glob("./include/yolos/*.pt") == []:
hf_hub_download(
repo_id="Bingsu/adetailer",
filename="hand_yolov9c.pt",
local_dir="./include/yolos/",
)
hf_hub_download(
repo_id="Bingsu/adetailer",
filename="face_yolov9c.pt",
local_dir="./include/yolos/",
)
hf_hub_download(
repo_id="Bingsu/adetailer",
filename="person_yolov8m-seg.pt",
local_dir="./include/yolos/",
)
hf_hub_download(
repo_id="segments-arnaud/sam_vit_b",
filename="sam_vit_b_01ec64.pth",
local_dir="./include/yolos/",
)
if glob.glob("./include/ESRGAN/*.pth") == []:
hf_hub_download(
repo_id="lllyasviel/Annotators",
filename="RealESRGAN_x4plus.pth",
local_dir="./include/ESRGAN/",
)
if glob.glob("./include/loras/*.safetensors") == []:
hf_hub_download(
repo_id="EvilEngine/add_detail",
filename="add_detail.safetensors",
local_dir="./include/loras/",
)
if glob.glob("./include/embeddings/*.pt") == []:
hf_hub_download(
repo_id="EvilEngine/badhandv4",
filename="badhandv4.pt",
local_dir="./include/embeddings/",
)
# hf_hub_download(
# repo_id="segments-arnaud/sam_vit_b",
# filename="EasyNegative.safetensors",
# local_dir="./include/embeddings/",
# )
if glob.glob("./include/vae_approx/taesd_decoder.safetensors") == []:
hf_hub_download(
repo_id="madebyollin/taesd",
filename="taesd_decoder.safetensors",
local_dir="./include/vae_approx/",
)
# Check and download Flux2 components if user wants to use them
# This is optional - only downloads if the directories don't exist
# Users can manually trigger by calling CheckAndDownloadFlux2()
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