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- import argparse
- import os
- import shutil
- import concurrent.futures
- import random
- # 脚本功能:可以随机抓取指定目录下的文件,可指定后缀名,指定要抓取的数量
- version = "1.0.0"
- def is_in_whitelist(file_name, whitelist):
- # 获取文件的后缀名
- _, ext = os.path.splitext(file_name)
- # 判断后缀名是否在白名单中
- return ext.lower() in whitelist
- def list_files(directory, whitelist, blacklist):
- # 遍历目录中的文件和文件夹
- res = []
- for root, dirs, files in os.walk(directory):
- # 只输出文件名,不包括文件夹
- for file in files:
- if not file.startswith(".") and is_in_whitelist(file, whitelist):
- file_path = os.path.join(root, file)
- res.append(file_path)
- return res
- def check_path(path_to_check):
- try:
- if not os.path.exists(path_to_check):
- os.makedirs(path_to_check)
- except OSError as e:
- print(f"发生错误: {e}")
- def copy_file(src_file, dst_file):
- if os.path.exists(dst_file):
- print(f"文件 {dst_file} 已存在")
- else:
- try:
- shutil.copy(src_file, dst_file)
- print(f"文件已成功从 {src_file} 拷贝到 {dst_file}")
- except FileNotFoundError:
- print(f"源文件 {src_file} 不存在")
- except PermissionError:
- print(f"没有权限拷贝文件到 {dst_file}")
- except Exception as e:
- print(f"发生错误: {e}")
- def copy_files_concurrently(src_files, dst_dir):
- with concurrent.futures.ThreadPoolExecutor() as executor:
- futures = [executor.submit(copy_file, src, os.path.join(dst_dir, os.path.basename(src))) for src in src_files]
- for future in concurrent.futures.as_completed(futures):
- try:
- # 你可以在这里处理返回的结果(如果有的话),但在这个例子中,copy_file没有返回值
- pass
- except Exception as exc:
- print(f'Generated an exception: {exc}')
- def main():
- parse = argparse.ArgumentParser("可以随机抓取指定目录下的文件,可指定后缀名,指定要抓取的数量\n")
- parse.add_argument("-v", "--version", action="version", version=version)
- parse.add_argument("input", help="输入路径")
- parse.add_argument("output", help="输出路径")
- parse.add_argument("--count", type=int, help="随机抓取的文件数量,不设置则抓取所有文件")
- parse.add_argument("--whitelist", nargs='+', help="文件后缀名白名单,如果设置白名单,则只会选取白名单中的文件格式")
- parse.add_argument("--blacklist", nargs='+', help="[未实装]文件后缀名黑名单,如果设置黑名单,则会选取过滤黑名单中的文件格式")
- args = parse.parse_args()
- whitelist = []
- blacklist = []
- count = -1
- if args.whitelist:
- for suffix in args.whitelist:
- if not suffix.startswith("."):
- whitelist.append("." + suffix)
- else:
- whitelist.append(suffix)
- if args.blacklist:
- for suffix in args.blacklist:
- if not suffix.startswith("."):
- blacklist.append("." + suffix)
- else:
- blacklist.append(suffix)
- if args.count:
- count = args.count
- files = list_files(args.input, whitelist, blacklist)
- files_to_copy = []
- check_path(args.output)
- if count == -1 or len(files) <= count:
- # 拷贝全部
- files_to_copy = files
- else:
- files_to_copy = random.sample(files, count)
- copy_files_concurrently(files_to_copy, args.output)
- if __name__ == "__main__":
- main()
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