




import functools
import logging
import os
import sys
import threading
from logging import (
    CRITICAL,  # NOQA
    DEBUG,  # NOQA
    ERROR,  # NOQA
    FATAL,  # NOQA
    INFO,  # NOQA
    NOTSET,  # NOQA
    WARN,  # NOQA
    WARNING,  # NOQA
)
from typing import Optional

import huggingface_hub.utils as hf_hub_utils
from tqdm import auto as tqdm_lib


__A        =    threading.Lock()
__A        =    None

__A        =    {
    "debug": logging.DEBUG,
    "info": logging.INFO,
    "warning": logging.WARNING,
    "error": logging.ERROR,
    "critical": logging.CRITICAL,
}

__A        =    logging.WARNING

__A        =    True







def 			lowerCamelCase_		(       )     ->       int:





				"""simple docstring"""


				__lowerCamelCase		       =    os.getenv('TRANSFORMERS_VERBOSITY' ,     UpperCamelCase__      )
				if env_level_str:
								if env_level_str in log_levels:
												return log_levels[env_level_str]
								else:
												logging.getLogger().warning(
												    F"""Unknown option TRANSFORMERS_VERBOSITY={env_level_str}, """
												    F"""has to be one of: { ', '.join(log_levels.keys()      ) }"""      )
				return _default_log_level







def 			lowerCamelCase_		(       )     ->       str:





				"""simple docstring"""


				return __name__.split('.'      )[0]







def 			lowerCamelCase_		(       )     ->       logging.Logger:





				"""simple docstring"""


				return logging.getLogger(_get_library_name()      )







def 			lowerCamelCase_		(       )     ->       None:





				"""simple docstring"""


				global _default_handler

				with _lock:
								if _default_handler:
												# This library has already configured the library root logger.
												return
								__lowerCamelCase		       =    logging.StreamHandler()  # Set sys.stderr as stream.
								__lowerCamelCase		       =    sys.stderr.flush

								# Apply our default configuration to the library root logger.
								__lowerCamelCase		       =    _get_library_root_logger()
								library_root_logger.addHandler(_default_handler      )
								library_root_logger.setLevel(_get_default_logging_level()      )
								__lowerCamelCase		       =    False







def 			lowerCamelCase_		(       )     ->       None:





				"""simple docstring"""


				global _default_handler

				with _lock:
								if not _default_handler:
												return

								__lowerCamelCase		       =    _get_library_root_logger()
								library_root_logger.removeHandler(_default_handler      )
								library_root_logger.setLevel(logging.NOTSET      )
								__lowerCamelCase		       =    None







def 			lowerCamelCase_		(       )     ->       List[str]:





				"""simple docstring"""


				return log_levels







def 			lowerCamelCase_		(       UpperCamelCase__				:      Optional[str] = None      )     ->       logging.Logger:





				"""simple docstring"""


				if name is None:
								__lowerCamelCase		       =    _get_library_name()

				_configure_library_root_logger()
				return logging.getLogger(UpperCamelCase__      )







def 			lowerCamelCase_		(       )     ->       int:





				"""simple docstring"""


				_configure_library_root_logger()
				return _get_library_root_logger().getEffectiveLevel()







def 			lowerCamelCase_		(       UpperCamelCase__				:      int      )     ->       None:





				"""simple docstring"""


				_configure_library_root_logger()
				_get_library_root_logger().setLevel(UpperCamelCase__      )







def 			lowerCamelCase_		(       )     ->       Any:





				"""simple docstring"""


				return set_verbosity(UpperCamelCase__      )







def 			lowerCamelCase_		(       )     ->       List[Any]:





				"""simple docstring"""


				return set_verbosity(UpperCamelCase__      )







def 			lowerCamelCase_		(       )     ->       Dict:





				"""simple docstring"""


				return set_verbosity(UpperCamelCase__      )







def 			lowerCamelCase_		(       )     ->       List[Any]:





				"""simple docstring"""


				return set_verbosity(UpperCamelCase__      )







def 			lowerCamelCase_		(       )     ->       None:





				"""simple docstring"""


				_configure_library_root_logger()

				assert _default_handler is not None
				_get_library_root_logger().removeHandler(_default_handler      )







def 			lowerCamelCase_		(       )     ->       None:





				"""simple docstring"""


				_configure_library_root_logger()

				assert _default_handler is not None
				_get_library_root_logger().addHandler(_default_handler      )







def 			lowerCamelCase_		(       UpperCamelCase__				:      logging.Handler      )     ->       None:





				"""simple docstring"""


				_configure_library_root_logger()

				assert handler is not None
				_get_library_root_logger().addHandler(UpperCamelCase__      )







def 			lowerCamelCase_		(       UpperCamelCase__				:      logging.Handler      )     ->       None:





				"""simple docstring"""


				_configure_library_root_logger()

				assert handler is not None and handler not in _get_library_root_logger().handlers
				_get_library_root_logger().removeHandler(UpperCamelCase__      )







def 			lowerCamelCase_		(       )     ->       None:





				"""simple docstring"""


				_configure_library_root_logger()
				__lowerCamelCase		       =    False







def 			lowerCamelCase_		(       )     ->       None:





				"""simple docstring"""


				_configure_library_root_logger()
				__lowerCamelCase		       =    True







def 			lowerCamelCase_		(       )     ->       None:





				"""simple docstring"""


				__lowerCamelCase		       =    _get_library_root_logger().handlers

				for handler in handlers:
								__lowerCamelCase		       =    logging.Formatter('[%(levelname)s|%(filename)s:%(lineno)s] %(asctime)s >> %(message)s'      )
								handler.setFormatter(UpperCamelCase__      )







def 			lowerCamelCase_		(       )     ->       None:





				"""simple docstring"""


				__lowerCamelCase		       =    _get_library_root_logger().handlers

				for handler in handlers:
								handler.setFormatter(UpperCamelCase__      )







def 			lowerCamelCase_		(       self				:      Union[str, Any] ,     *UpperCamelCase__				:      Dict ,     **UpperCamelCase__				:      Dict      )     ->       str:





				"""simple docstring"""


				__lowerCamelCase		       =    os.getenv('TRANSFORMERS_NO_ADVISORY_WARNINGS' ,     UpperCamelCase__      )
				if no_advisory_warnings:
								return
				self.warning(*UpperCamelCase__ ,     **UpperCamelCase__      )


__A        =    warning_advice







@functools.lru_cache(UpperCamelCase__      )
def 			lowerCamelCase_		(       self				:      Optional[Any] ,     *UpperCamelCase__				:      str ,     **UpperCamelCase__				:      List[Any]      )     ->       Tuple:





				"""simple docstring"""


				self.warning(*UpperCamelCase__ ,     **UpperCamelCase__      )


__A        =    warning_once







class     __lowerCAmelCase :

			"""simple docstring"""







			def __init__(      self			,						*lowerCamelCase__			,						**lowerCamelCase__							)    ->      List[Any]:  # pylint: disable=unused-argument



							'''simple docstring'''
							__lowerCamelCase		       =    args[0] if args else None


			def __iter__(      self							)    ->      Optional[int]:



							'''simple docstring'''
							return iter(self._iterator							)


			def __getattr__(      self			,						lowerCamelCase__							)    ->      Optional[int]:



							'''simple docstring'''

							def empty_fn(*lowerCamelCase__			,						**lowerCamelCase__							):  # pylint: disable=unused-argument
											return

							return empty_fn


			def __enter__(      self							)    ->      Dict:



							'''simple docstring'''
							return self






			def __exit__(      self			,						lowerCamelCase__			,						lowerCamelCase__			,						lowerCamelCase__							)    ->      Union[str, Any]:



							'''simple docstring'''
							return







class     __lowerCAmelCase :

			"""simple docstring"""







			def __call__(      self			,						*lowerCamelCase__			,						**lowerCamelCase__							)    ->      Any:



							'''simple docstring'''
							if _tqdm_active:
											return tqdm_lib.tqdm(*lowerCamelCase__			,						**lowerCamelCase__							)
							else:
											return EmptyTqdm(*lowerCamelCase__			,						**lowerCamelCase__							)


			def       lowercase_    (      self			,						*lowerCamelCase__			,						**lowerCamelCase__							)    ->      Optional[int]:



							'''simple docstring'''
							__lowerCamelCase		       =    None
							if _tqdm_active:
											return tqdm_lib.tqdm.set_lock(*lowerCamelCase__			,						**lowerCamelCase__							)






			def       lowercase_    (      self							)    ->      str:



							'''simple docstring'''
							if _tqdm_active:
											return tqdm_lib.tqdm.get_lock()




__A        =    _tqdm_cls()







def 			lowerCamelCase_		(       )     ->       bool:





				"""simple docstring"""


				global _tqdm_active
				return bool(_tqdm_active      )







def 			lowerCamelCase_		(       )     ->       int:





				"""simple docstring"""


				global _tqdm_active
				__lowerCamelCase		       =    True
				hf_hub_utils.enable_progress_bars()







def 			lowerCamelCase_		(       )     ->       int:





				"""simple docstring"""


				global _tqdm_active
				__lowerCamelCase		       =    False
				hf_hub_utils.disable_progress_bars()








import argparse
import shutil
from pathlib import Path

from tqdm import tqdm

from transformers import AutoTokenizer







def 			lowerCamelCase_		(       UpperCamelCase__				:      List[Any] ,     UpperCamelCase__				:      Optional[int] ,     UpperCamelCase__				:      str ,     UpperCamelCase__				:      Any=1024      )     ->       Dict:





				"""simple docstring"""


				__lowerCamelCase       ,						__lowerCamelCase		       =    [], []

				__lowerCamelCase		       =    list(zip(UpperCamelCase__ ,     UpperCamelCase__      )      )
				__lowerCamelCase       ,						__lowerCamelCase		       =    sorted_examples[0]

				def is_too_big(UpperCamelCase__				:      List[str]      ):
								return tok(UpperCamelCase__ ,     return_tensors='pt'      ).input_ids.shape[1] > max_tokens

				for src, tgt in tqdm(sorted_examples[1:]      ):
								__lowerCamelCase		       =    new_src + ' ' + src
								__lowerCamelCase		       =    new_tgt + ' ' + tgt
								if is_too_big(UpperCamelCase__      ) or is_too_big(UpperCamelCase__      ):  # cant fit, finalize example
												finished_src.append(UpperCamelCase__      )
												finished_tgt.append(UpperCamelCase__      )
												__lowerCamelCase       ,						__lowerCamelCase		       =    src, tgt
								else:  # can fit, keep adding
												__lowerCamelCase       ,						__lowerCamelCase		       =    cand_src, cand_tgt

    # cleanup
				if new_src:
								assert new_tgt
								finished_src.append(UpperCamelCase__      )
								finished_tgt.append(UpperCamelCase__      )
				return finished_src, finished_tgt







def 			lowerCamelCase_		(       UpperCamelCase__				:      str ,     UpperCamelCase__				:      Path ,     UpperCamelCase__				:      Optional[int] ,     UpperCamelCase__				:      str      )     ->       Optional[int]:





				"""simple docstring"""


				__lowerCamelCase		       =    Path(UpperCamelCase__      )
				save_path.mkdir(exist_ok=UpperCamelCase__      )
				for split in ["train"]:
								__lowerCamelCase       ,						__lowerCamelCase		       =    data_dir / F"""{split}.source""", data_dir / F"""{split}.target"""
								__lowerCamelCase		       =    [x.rstrip() for x in Path(UpperCamelCase__      ).open().readlines()]
								__lowerCamelCase		       =    [x.rstrip() for x in Path(UpperCamelCase__      ).open().readlines()]
								__lowerCamelCase       ,						__lowerCamelCase		       =    pack_examples(UpperCamelCase__ ,     UpperCamelCase__ ,     UpperCamelCase__ ,     UpperCamelCase__      )
								print(F"""packed {split} split from {len(UpperCamelCase__      )} examples -> {len(UpperCamelCase__      )}."""      )
								Path(save_path / F"""{split}.source"""      ).open('w'      ).write('\n'.join(UpperCamelCase__      )      )
								Path(save_path / F"""{split}.target"""      ).open('w'      ).write('\n'.join(UpperCamelCase__      )      )
				for split in ["val", "test"]:
								__lowerCamelCase       ,						__lowerCamelCase		       =    data_dir / F"""{split}.source""", data_dir / F"""{split}.target"""
								shutil.copyfile(UpperCamelCase__ ,     save_path / F"""{split}.source"""      )
								shutil.copyfile(UpperCamelCase__ ,     save_path / F"""{split}.target"""      )







def 			lowerCamelCase_		(       )     ->       List[str]:





				"""simple docstring"""


				__lowerCamelCase		       =    argparse.ArgumentParser()
				parser.add_argument('--tok_name' ,     type=UpperCamelCase__ ,     help='like facebook/bart-large-cnn,t5-base, etc.'      )
				parser.add_argument('--max_seq_len' ,     type=UpperCamelCase__ ,     default=128      )
				parser.add_argument('--data_dir' ,     type=UpperCamelCase__      )
				parser.add_argument('--save_path' ,     type=UpperCamelCase__      )
				__lowerCamelCase		       =    parser.parse_args()
				__lowerCamelCase		       =    AutoTokenizer.from_pretrained(args.tok_name      )
				return pack_data_dir(UpperCamelCase__ ,     Path(args.data_dir      ) ,     args.max_seq_len ,     args.save_path      )


if __name__ == "__main__":
					packer_cli()


