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import sys
import os
import logging
import subprocess
import traceback
import json
import re
log = logging.getLogger("TangoFlux")
download_models = True
EXT_PATH = os.path.dirname(os.path.abspath(__file__))
try:
folder_paths_path = os.path.abspath(os.path.join(EXT_PATH, "..", "..", "..", "folder_paths.py"))
sys.path.append(os.path.dirname(folder_paths_path))
import folder_paths
TANGOFLUX_DIR = os.path.join(folder_paths.models_dir, "tangoflux")
TEXT_ENCODER_DIR = os.path.join(folder_paths.models_dir, "text_encoders")
except:
download_models = False
try:
log.info("Installing requirements")
subprocess.check_call([sys.executable, "-m", "pip", "install", "-r", f"{EXT_PATH}/requirements.txt", "--no-warn-script-location"])
if download_models:
from huggingface_hub import snapshot_download
log.info("Downloading Necessary models")
try:
log.info(f"Downloading TangoFlux models to: {TANGOFLUX_DIR}")
snapshot_download(
repo_id="declare-lab/TangoFlux",
allow_patterns=["*.json", "*.safetensors"],
local_dir=TANGOFLUX_DIR,
local_dir_use_symlinks=False,
)
except Exception:
traceback.print_exc()
log.error("Failed to download TangoFlux models")
log.info("Loading config")
with open(os.path.join(TANGOFLUX_DIR, "config.json"), "r") as f:
config = json.load(f)
try:
text_encoder = re.sub(r'[<>:"/\\|?*]', '-', config.get("text_encoder_name", "google/flan-t5-large"))
text_encoder_path = os.path.join(TEXT_ENCODER_DIR, text_encoder)
log.info(f"Downloading text encoders to: {text_encoder_path}")
snapshot_download(
repo_id=config.get("text_encoder_name", "google/flan-t5-large"),
allow_patterns=["*.json", "*.safetensors", "*.model"],
local_dir=text_encoder_path,
local_dir_use_symlinks=False,
)
except Exception:
traceback.print_exc()
log.error("Failed to download text encoders")
try:
log.info("Installing TangoFlux module")
subprocess.check_call([sys.executable, "-m", "pip", "install", os.path.join(EXT_PATH, "..")])
except Exception:
traceback.print_exc()
log.error("Failed to install TangoFlux module")
log.info("TangoFlux Installation completed")
except Exception:
traceback.print_exc()
log.error("TangoFlux Installation failed")