InvokeAI/invokeai/app/util/download_with_progress.py

52 lines
1.5 KiB
Python

from pathlib import Path
from urllib import request
from tqdm import tqdm
from invokeai.backend.util.logging import InvokeAILogger
class ProgressBar:
"""Simple progress bar for urllib.request.urlretrieve using tqdm."""
def __init__(self, model_name: str = "file"):
self.pbar = None
self.name = model_name
def __call__(self, block_num: int, block_size: int, total_size: int):
if not self.pbar:
self.pbar = tqdm(
desc=self.name,
initial=0,
unit="iB",
unit_scale=True,
unit_divisor=1000,
total=total_size,
)
self.pbar.update(block_size)
def download_with_progress_bar(name: str, url: str, dest_path: Path) -> bool:
"""Download a file from a URL to a destination path, with a progress bar.
If the file already exists, it will not be downloaded again.
Exceptions are not caught.
Args:
name (str): Name of the file being downloaded.
url (str): URL to download the file from.
dest_path (Path): Destination path to save the file to.
Returns:
bool: True if the file was downloaded, False if it already existed.
"""
if dest_path.exists():
return False # already downloaded
InvokeAILogger.get_logger().info(f"Downloading {name}...")
dest_path.parent.mkdir(parents=True, exist_ok=True)
request.urlretrieve(url, dest_path, ProgressBar(name))
return True