| import hashlib |
| import os |
| from typing import List |
| from scripts.iib.tool import get_formatted_date, get_cache_dir, is_image_file |
| from concurrent.futures import ThreadPoolExecutor |
| import time |
| from PIL import Image |
|
|
| def generate_image_cache(dirs, size:str, verbose=False): |
| start_time = time.time() |
| cache_base_dir = get_cache_dir() |
|
|
| def process_image(item): |
| if item.is_dir(): |
| verbose and print(f"Processing directory: {item.path}") |
| for sub_item in os.scandir(item.path): |
| process_image(sub_item) |
| return |
| if not os.path.exists(item.path) or not is_image_file(item.path): |
| return |
|
|
| try: |
| path = os.path.normpath(item.path) |
| stat = item.stat() |
| t = get_formatted_date(stat.st_mtime) |
| hash_dir = hashlib.md5((path + t).encode("utf-8")).hexdigest() |
| cache_dir = os.path.join(cache_base_dir, "iib_cache", hash_dir) |
| cache_path = os.path.join(cache_dir, f"{size}.webp") |
|
|
| if os.path.exists(cache_path): |
| verbose and print(f"Image cache already exists: {path}") |
| return |
|
|
| if os.path.getsize(path) < 64 * 1024: |
| verbose and print(f"Image size less than 64KB: {path}", "skip") |
| return |
| |
| with Image.open(path) as img: |
| w, h = size.split("x") |
| img.thumbnail((int(w), int(h))) |
| os.makedirs(cache_dir, exist_ok=True) |
| img.save(cache_path, "webp") |
|
|
| verbose and print(f"Image cache generated: {path}") |
| except Exception as e: |
| print(f"Error generating image cache: {path}") |
| print(e) |
|
|
| with ThreadPoolExecutor() as executor: |
| for dir_path in dirs: |
| folder_listing: List[os.DirEntry] = os.scandir(dir_path) |
| for item in folder_listing: |
| executor.submit(process_image, item) |
|
|
| print("Image cache generation completed. ✨") |
| end_time = time.time() |
| execution_time = end_time - start_time |
| print(f"Execution time: {execution_time} seconds") |
