





'''simple docstring'''
import argparse
import shutil
from pathlib import Path

from tqdm import tqdm

from transformers import AutoTokenizer
def 				lowercase__   (   __lowercase						:  int				,  __lowercase						:  Optional[Any]				,  __lowercase						:  Dict				,  __lowercase						:  Optional[int]=1024     ) ->      Dict:



       """simple docstring"""






       __UpperCamelCase       ,						__UpperCamelCase       =  [], []

       __UpperCamelCase       =  list(zip(__lowercase				,  __lowercase     )     )
       __UpperCamelCase       ,						__UpperCamelCase       =  sorted_examples[0]

       def is_too_big(__lowercase						:  Optional[Any]     ):
              return tok(__lowercase				,  return_tensors='pt'     ).input_ids.shape[1] > max_tokens

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

    # cleanup
       if new_src:
              assert new_tgt
              finished_src.append(__lowercase     )
              finished_tgt.append(__lowercase     )
       return finished_src, finished_tgt
def 				lowercase__   (   __lowercase						:  List[str]				,  __lowercase						:  Path				,  __lowercase						:  Dict				,  __lowercase						:  Dict     ) ->      Optional[Any]:



       """simple docstring"""






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



       """simple docstring"""






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


if __name__ == "__main__":
    packer_cli()




import inspect
import unittest







class  snake_case__(							unittest.TestCase							):







						'''simple docstring'''




						def   lowercase_       ( self							)    ->			int:
										try:
														import diffusers  # noqa: F401
										except ImportError:
														assert False




						def   lowercase_       ( self							)    ->			List[str]:
										import diffusers
										from diffusers.dependency_versions_table import deps

										lowerCAmelCase_       :					Any			 = inspect.getmembers(__lowercase      ,  inspect.isclass							)

										for cls_name, cls_module in all_classes:
														if "dummy_" in cls_module.__module__:
																		for backend in cls_module._backends:
																						if backend == "k_diffusion":
																										lowerCAmelCase_       :					Optional[int]			 = '''k-diffusion'''
																						elif backend == "invisible_watermark":
																										lowerCAmelCase_       :					Dict			 = '''invisible-watermark'''
																						assert backend in deps, f"""{backend} is not in the deps table!"""