62 lines
2.7 KiB
Python
62 lines
2.7 KiB
Python
import os
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import hashlib
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from PIL import Image
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import shutil
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def compute_hash(file_path):
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# Compute the hash of the file content
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with open(file_path, 'rb') as f:
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content = f.read()
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hash_value = hashlib.md5(content).hexdigest()
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return hash_value
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def compress_and_save(source_dir, target_dir, hash_dir):
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# Ensure the target directory exists
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if not os.path.exists(target_dir):
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os.makedirs(target_dir)
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# Ensure the hash directory exists
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if not os.path.exists(hash_dir):
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os.makedirs(hash_dir)
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for root, dirs, files in os.walk(source_dir):
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for file_name in files:
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if file_name.lower().endswith('.png'):
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source_path = os.path.join(root, file_name)
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relative_path = os.path.relpath(source_path, source_dir)
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target_path = os.path.join(target_dir, relative_path)
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# Compute the hash of the original file
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original_hash = compute_hash(source_path)
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# Create the corresponding hash file path
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hash_file_path = os.path.join(hash_dir, relative_path + '.hash')
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# Check if the hash has changed
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if not os.path.exists(hash_file_path) or open(hash_file_path, 'r').read() != original_hash:
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# Create the directory structure in the target directory if it doesn't exist
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os.makedirs(os.path.dirname(target_path), exist_ok=True)
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with Image.open(source_path) as img:
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img = img.convert('RGBA')
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img.save(target_path, format='PNG', optimize=True)
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os.makedirs(os.path.dirname(hash_file_path), exist_ok=True)
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with open(hash_file_path, 'w') as hash_file:
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hash_file.write(original_hash)
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else:
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# Copy non-PNG files to the target directory
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source_path = os.path.join(root, file_name)
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relative_path = os.path.relpath(source_path, source_dir)
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target_path = os.path.join(target_dir, relative_path)
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os.makedirs(os.path.dirname(target_path), exist_ok=True)
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shutil.copyfile(source_path, target_path)
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# Replace 'source_directory_path' with the path to your directory containing PNG files
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source_directory_path = 'resources'
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# Replace 'target_directory_path' with the path to the directory where compressed images will be saved
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target_directory_path = 'optimizedResources'
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# Replace 'hash_directory_path' with the path to the directory where hashes will be stored
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hash_directory_path = 'hashes'
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print("Optimizing images...")
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compress_and_save(source_directory_path, target_directory_path, hash_directory_path)
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