mirror of
https://github.com/MaaAssistantArknights/MaaAssistantArknights.git
synced 2026-07-15 17:30:27 +08:00
48c518c80b
https://github.com/MaaAssistantArknights/MaaAssistantArknights/actions/runs/20529356176 [skip changelog]
277 lines
8.3 KiB
Python
277 lines
8.3 KiB
Python
import hashlib
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import json
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import os
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import pathlib
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import re
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import struct
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from argparse import ArgumentParser
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import numpy as np
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from PIL import Image
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from tqdm import tqdm
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def remove_auxiliary_data(input_file, output_file):
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with open(input_file, "rb") as f:
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data = f.read()
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output_data = bytearray()
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output_data.extend(data[:8]) # PNG signature
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# Locate and copy critical chunks
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start = 8
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while start < len(data):
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length, chunk_type = struct.unpack(">I4s", data[start : start + 8])
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start += 8
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chunk_data = data[start : start + length]
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start += length
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crc = data[start : start + 4]
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start += 4
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if chunk_type in [b"IHDR", b"PLTE", b"IDAT", b"IEND"]:
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output_data.extend(struct.pack(">I4s", length, chunk_type))
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output_data.extend(chunk_data)
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output_data.extend(crc)
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with open(output_file, "wb") as f:
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f.write(output_data)
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def get_file_id(file_path: str):
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file_id = file_path.replace("\\", "/")
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# resource\\global\\{SERVERNAME}\\resource\\template\\xxx.png-> {SERVERNAME}/xxx
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m = re.search(r"global/(\w+)/resource/template/([^/]+)\.png", file_id)
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if m:
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return f"{m.group(1)}/{m.group(2)}"
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# resource\\template\\xxx.png-> official/xxx
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m = re.search(r"template/([^/]+)\.png", file_id)
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if m:
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return f"official/{m.group(1)}"
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# resource\\PATH\\TO\\xxx.png-> resource/PATH/TO/xxx
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m = re.search(r"resource/(.*)\.png", file_id)
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if m:
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return f"resource/{m.group(1)}"
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# docs\\.vuepress\\public\\image\\PATH\\TO\\xxx.png -> docs/PATH/TO/xxx
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m = re.search(r"docs/.vuepress/public/images/(.*)\.png", file_id)
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if m:
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return f"docs/{m.group(1)}"
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return None
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def check_png_need_update(file_path: str, perfect_pngs: dict, quiet: bool):
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# convert to absolute path
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file_path = str(pathlib.Path(file_path).resolve())
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if not file_path.endswith(".png"):
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return False
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file_id = get_file_id(file_path)
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if not file_id:
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print("unknown file path", file_path)
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return False
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if file_id in perfect_pngs:
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with open(file_path, "rb") as f:
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data = f.read()
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sha256 = hashlib.sha256(data).hexdigest()
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if sha256 == perfect_pngs[file_id]:
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if not quiet:
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print("skip", file_path)
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return False
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return True
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def update_png_with_optipng(file_path: str, perfect_pngs: dict, quiet: bool):
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if check_png_need_update(file_path, perfect_pngs, quiet):
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if not quiet:
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print("updating", file_path)
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else:
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return False
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file_path = str(pathlib.Path(file_path).resolve())
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file_id = get_file_id(file_path)
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sz_before = os.stat(file_path).st_size
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input_file = output_file = file_path
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remove_auxiliary_data(input_file, output_file)
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if quiet:
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os.system(f'optipng -quiet -o7 -zm1-9 -fix "{output_file}"')
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else:
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os.system(f'optipng -o7 -zm1-9 -fix "{output_file}"')
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sz_after = os.stat(file_path).st_size
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if not quiet:
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print(
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f"before: {sz_before} Bytes, after: {sz_after} Bytes, diff: {sz_before - sz_after} Bytes"
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)
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# update file sha256
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with open(file_path, "rb") as f:
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data = f.read()
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sha256 = hashlib.sha256(data).hexdigest()
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perfect_pngs.update({file_id: sha256})
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if not quiet:
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print("updated", file_path)
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update_perfect_png_dict(perfect_pngs)
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return sz_before - sz_after
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def update_png_with_oxipng(file_path: str, perfect_pngs: dict, quiet: bool):
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if check_png_need_update(file_path, perfect_pngs, quiet):
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if not quiet:
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print("updating", file_path)
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else:
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return False
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file_path = str(pathlib.Path(file_path).resolve())
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file_id = get_file_id(file_path)
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sz_before = os.stat(file_path).st_size
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img_before = np.array(Image.open(file_path).convert("L"))
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if quiet:
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os.system(f'oxipng -o max --fast -Z -s -q "{file_path}"')
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os.system(f'oxipng -o 2 -s -q "{file_path}"')
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else:
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os.system(f'oxipng -o max --fast -Z -s "{file_path}"')
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os.system(f'oxipng -o 2 -s "{file_path}"')
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sz_after = os.stat(file_path).st_size
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if not quiet:
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print(
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f"before: {sz_before} Bytes, after: {sz_after} Bytes, diff: {sz_before - sz_after} Bytes"
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)
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# update file sha256
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with open(file_path, "rb") as f:
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data = f.read()
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sha256 = hashlib.sha256(data).hexdigest()
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perfect_pngs.update({file_id: sha256})
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img_after = np.array(Image.open(file_path).convert("L"))
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if not (img_before == img_after).all():
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return -1
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if not quiet:
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print("updated", file_path)
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update_perfect_png_dict(perfect_pngs)
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return sz_before - sz_after
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cur_dir = pathlib.Path(__file__).parent.resolve()
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perfect_pngs_path = str(cur_dir / "optimize_templates.json")
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def update_perfect_png_dict(perfect_pngs: dict):
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with open(perfect_pngs_path, "w") as f:
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json.dump(perfect_pngs, f, indent=4)
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def ArgParser():
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parser = ArgumentParser()
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parser.add_argument(
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"-p",
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"--path",
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dest="path",
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nargs="*",
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help="the paths of png files or folders",
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default=[],
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)
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parser.add_argument("-q", "--quiet", dest="quiet", action="store_true")
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return parser
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if __name__ == "__main__":
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args = ArgParser().parse_args()
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paths = args.path
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quiet = args.quiet
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perfect_pngs = {}
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optimized_png_paths = []
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if os.path.exists(perfect_pngs_path):
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with open(perfect_pngs_path, "r") as f:
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perfect_pngs = json.load(f)
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if len(paths) == 0:
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docs_dir = cur_dir.parent.parent / "docs"
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resource_dir = cur_dir.parent.parent / "resource"
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paths = [
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str(resource_dir / "global"),
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str(resource_dir / "template"),
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str(docs_dir),
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]
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print("no path specified, use default paths:", paths)
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files = []
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tqdm_total = 0
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existing_file_ids = set()
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for path in paths:
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if pathlib.Path(path).is_dir():
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for root, _, _files in os.walk(path):
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for f in _files:
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file = os.path.join(root, f)
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if file.endswith(".png"):
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file_id = get_file_id(str(pathlib.Path(file).resolve()))
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if file_id:
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existing_file_ids.add(file_id)
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if check_png_need_update(file, perfect_pngs, quiet):
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files.append(file)
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tqdm_total += os.stat(file).st_size ** 2 // 2**20
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elif pathlib.Path(path).is_file():
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files.append(path)
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tqdm_total += os.stat(path).st_size ** 2 // 2**20
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file_id = get_file_id(str(pathlib.Path(path).resolve()))
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if file_id:
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existing_file_ids.add(file_id)
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removed_count = 0
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for file_id in list(perfect_pngs.keys()):
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if file_id not in existing_file_ids:
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del perfect_pngs[file_id]
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removed_count += 1
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if not quiet:
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print(f"Removed deleted file from cache: {file_id}")
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if removed_count > 0:
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update_perfect_png_dict(perfect_pngs)
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if not quiet:
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print(f"Cleaned up {removed_count} removed file(s) from cache")
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total_diff_sz = 0
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if quiet:
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t = tqdm(files, total=tqdm_total)
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for i, file in enumerate(files):
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cur_file_sz = os.stat(file).st_size
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diff_sz = update_png_with_oxipng(file, perfect_pngs, quiet)
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if diff_sz == -1:
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print("error.")
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exit(-1)
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if diff_sz:
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total_diff_sz += diff_sz
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optimized_png_paths.append(file)
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if total_diff_sz < 1024:
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total_diff_sz_str = f"{total_diff_sz} Bytes"
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elif total_diff_sz < 1048576:
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total_diff_sz_str = f"{(total_diff_sz / 1024):.2f} KiB"
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else:
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total_diff_sz_str = f"{(total_diff_sz / 1048576):.2f} MiB"
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if quiet:
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t.update(cur_file_sz**2 // 2**20)
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t.set_postfix(
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file_counts=f"{i + 1}/{len(files)}", reduced_size=total_diff_sz_str
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)
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t.refresh()
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else:
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print(
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f"file counts: {i + 1}/{len(files)}, reduced pngs size: {total_diff_sz_str}"
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)
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