





'''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 unittest

from transformers.utils.backbone_utils import (
    BackboneMixin,
    get_aligned_output_features_output_indices,
    verify_out_features_out_indices,
)


class   A			(unittest.TestCase    ):
			'''simple docstring'''




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







					"""simple docstring"""






					A__        =   ["""a""", """b""", """c"""]

					# Defaults to last layer if both are None
					A__      ,			A__        =   get_aligned_output_features_output_indices(__lowerCAmelCase							,	__lowerCAmelCase							,	__lowerCAmelCase   )
					self.assertEqual(__lowerCAmelCase							,	["""c"""]   )
					self.assertEqual(__lowerCAmelCase							,	[2]   )

					# Out indices set to match out features
					A__      ,			A__        =   get_aligned_output_features_output_indices(["""a""", """c"""]							,	__lowerCAmelCase							,	__lowerCAmelCase   )
					self.assertEqual(__lowerCAmelCase							,	["""a""", """c"""]   )
					self.assertEqual(__lowerCAmelCase							,	[0, 2]   )

					# Out features set to match out indices
					A__      ,			A__        =   get_aligned_output_features_output_indices(__lowerCAmelCase							,	[0, 2]							,	__lowerCAmelCase   )
					self.assertEqual(__lowerCAmelCase							,	["""a""", """c"""]   )
					self.assertEqual(__lowerCAmelCase							,	[0, 2]   )

					# Out features selected from negative indices
					A__      ,			A__        =   get_aligned_output_features_output_indices(__lowerCAmelCase							,	[-3, -1]							,	__lowerCAmelCase   )
					self.assertEqual(__lowerCAmelCase							,	["""a""", """c"""]   )
					self.assertEqual(__lowerCAmelCase							,	[-3, -1]   )






			def    a_       (			self   :    Optional[Any]   )	->	Optional[Any]:







					"""simple docstring"""






					with self.assertRaises(__lowerCAmelCase   ):
							verify_out_features_out_indices(["""a""", """b"""]							,	(0, 1)							,	__lowerCAmelCase   )

					# Out features must be a list
					with self.assertRaises(__lowerCAmelCase   ):
							verify_out_features_out_indices(("""a""", """b""")							,	(0, 1)							,	["""a""", """b"""]   )

					# Out features must be a subset of stage names
					with self.assertRaises(__lowerCAmelCase   ):
							verify_out_features_out_indices(["""a""", """b"""]							,	(0, 1)							,	["""a"""]   )

					# Out indices must be a list or tuple
					with self.assertRaises(__lowerCAmelCase   ):
							verify_out_features_out_indices(__lowerCAmelCase							,	0							,	["""a""", """b"""]   )

					# Out indices must be a subset of stage names
					with self.assertRaises(__lowerCAmelCase   ):
							verify_out_features_out_indices(__lowerCAmelCase							,	(0, 1)							,	["""a"""]   )

					# Out features and out indices must be the same length
					with self.assertRaises(__lowerCAmelCase   ):
							verify_out_features_out_indices(["""a""", """b"""]							,	(0,)							,	["""a""", """b""", """c"""]   )

					# Out features should match out indices
					with self.assertRaises(__lowerCAmelCase   ):
							verify_out_features_out_indices(["""a""", """b"""]							,	(0, 2)							,	["""a""", """b""", """c"""]   )

					# Out features and out indices should be in order
					with self.assertRaises(__lowerCAmelCase   ):
							verify_out_features_out_indices(["""b""", """a"""]							,	(0, 1)							,	["""a""", """b"""]   )

					# Check passes with valid inputs
					verify_out_features_out_indices(["""a""", """b""", """d"""]							,	(0, 1, -1)							,	["""a""", """b""", """c""", """d"""]   )







			def    a_       (			self   :    Union[str, Any]   )	->	List[str]:







					"""simple docstring"""






					A__        =   BackboneMixin()

					A__        =   ["""a""", """b""", """c"""]
					A__        =   ["""a""", """c"""]
					A__        =   [0, 2]

					# Check that the output features and indices are set correctly
					self.assertEqual(backbone.out_features							,	["""a""", """c"""]   )
					self.assertEqual(backbone.out_indices							,	[0, 2]   )

					# Check out features and indices are updated correctly
					A__        =   ["""a""", """b"""]
					self.assertEqual(backbone.out_features							,	["""a""", """b"""]   )
					self.assertEqual(backbone.out_indices							,	[0, 1]   )

					A__        =   [-3, -1]
					self.assertEqual(backbone.out_features							,	["""a""", """c"""]   )
					self.assertEqual(backbone.out_indices							,	[-3, -1]   )



