mirror of
https://github.com/willmiao/ComfyUI-Lora-Manager.git
synced 2026-03-22 05:32:12 -03:00
66 lines
2.9 KiB
Python
66 lines
2.9 KiB
Python
import logging
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import os
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import hashlib
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from .constants import PREVIEW_EXTENSIONS, CARD_PREVIEW_WIDTH
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from .exif_utils import ExifUtils
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logger = logging.getLogger(__name__)
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async def calculate_sha256(file_path: str) -> str:
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"""Calculate SHA256 hash of a file"""
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sha256_hash = hashlib.sha256()
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with open(file_path, "rb") as f:
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for byte_block in iter(lambda: f.read(128 * 1024), b""):
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sha256_hash.update(byte_block)
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return sha256_hash.hexdigest()
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def find_preview_file(base_name: str, dir_path: str) -> str:
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"""Find preview file for given base name in directory"""
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temp_extensions = PREVIEW_EXTENSIONS.copy()
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# Add example extension for compatibility
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# https://github.com/willmiao/ComfyUI-Lora-Manager/issues/225
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# The preview image will be optimized to lora-name.webp, so it won't affect other logic
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temp_extensions.append(".example.0.jpeg")
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for ext in temp_extensions:
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full_pattern = os.path.join(dir_path, f"{base_name}{ext}")
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if os.path.exists(full_pattern):
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# Check if this is an image and not already webp
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# TODO: disable the optimization for now, maybe add a config option later
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# if ext.lower().endswith(('.jpg', '.jpeg', '.png')) and not ext.lower().endswith('.webp'):
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# try:
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# # Optimize the image to webp format
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# webp_path = os.path.join(dir_path, f"{base_name}.webp")
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# # Use ExifUtils to optimize the image
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# with open(full_pattern, 'rb') as f:
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# image_data = f.read()
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# optimized_data, _ = ExifUtils.optimize_image(
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# image_data=image_data,
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# target_width=CARD_PREVIEW_WIDTH,
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# format='webp',
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# quality=85,
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# preserve_metadata=False
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# )
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# # Save the optimized webp file
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# with open(webp_path, 'wb') as f:
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# f.write(optimized_data)
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# logger.debug(f"Optimized preview image from {full_pattern} to {webp_path}")
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# return webp_path.replace(os.sep, "/")
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# except Exception as e:
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# logger.error(f"Error optimizing preview image {full_pattern}: {e}")
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# # Fall back to original file if optimization fails
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# return full_pattern.replace(os.sep, "/")
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# Return the original path for webp images or non-image files
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return full_pattern.replace(os.sep, "/")
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return ""
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def normalize_path(path: str) -> str:
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"""Normalize file path to use forward slashes"""
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return path.replace(os.sep, "/") if path else path |