




'''simple docstring'''


import argparse
import shutil
from pathlib import Path

from tqdm import tqdm

from transformers import AutoTokenizer
def 	snake_case_					(UpperCamelCase :						Dict				,		UpperCamelCase :						Dict				,		UpperCamelCase :						Optional[int]				,		UpperCamelCase :						List[Any]=1024   ):





							'''simple docstring'''


							_a  ,							_a			  =       [], []

							_a			  =       list(zip(UpperCamelCase				,		UpperCamelCase   )   )
							_a  ,							_a			  =       sorted_examples[0]

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

							for src, tgt in tqdm(sorted_examples[1:]   ):
														_a			  =       new_src + ''' ''' + src
														_a			  =       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   )
																					_a  ,							_a			  =       src, tgt
														else:  # can fit, keep adding
																					_a  ,							_a			  =       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 	snake_case_					(UpperCamelCase :						Optional[int]				,		UpperCamelCase :						Path				,		UpperCamelCase :						Union[str, Any]				,		UpperCamelCase :						Any   ):





							'''simple docstring'''


							_a			  =       Path(UpperCamelCase   )
							save_path.mkdir(exist_ok=UpperCamelCase   )
							for split in ["train"]:
														_a  ,							_a			  =       data_dir / f'{split}.source', data_dir / f'{split}.target'
														_a			  =       [x.rstrip() for x in Path(UpperCamelCase   ).open().readlines()]
														_a			  =       [x.rstrip() for x in Path(UpperCamelCase   ).open().readlines()]
														_a  ,							_a			  =       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"]:
														_a  ,							_a			  =       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 	snake_case_					():





							'''simple docstring'''


							_a			  =       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   )
							_a			  =       parser.parse_args()
							_a			  =       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()







'''simple docstring'''


import os
import sys
from contextlib import contextmanager


# Windows only
if os.name == "nt":
				import ctypes
				import msvcrt  # noqa

				class     A					(	ctypes.Structure					):
											# _fields is a specific attr expected by ctypes
											lowercase_           =       [('size', ctypes.c_int), ('visible', ctypes.c_byte)]
def 	snake_case_					():





							'''simple docstring'''


							if os.name == "nt":
														_a			  =       CursorInfo()
														_a			  =       ctypes.windll.kernelaa.GetStdHandle(-11   )
														ctypes.windll.kernelaa.GetConsoleCursorInfo(UpperCamelCase				,		ctypes.byref(UpperCamelCase   )   )
														_a			  =       False
														ctypes.windll.kernelaa.SetConsoleCursorInfo(UpperCamelCase				,		ctypes.byref(UpperCamelCase   )   )
							elif os.name == "posix":
														sys.stdout.write('''\033[?25l'''   )
														sys.stdout.flush()
def 	snake_case_					():





							'''simple docstring'''


							if os.name == "nt":
														_a			  =       CursorInfo()
														_a			  =       ctypes.windll.kernelaa.GetStdHandle(-11   )
														ctypes.windll.kernelaa.GetConsoleCursorInfo(UpperCamelCase				,		ctypes.byref(UpperCamelCase   )   )
														_a			  =       True
														ctypes.windll.kernelaa.SetConsoleCursorInfo(UpperCamelCase				,		ctypes.byref(UpperCamelCase   )   )
							elif os.name == "posix":
														sys.stdout.write('''\033[?25h'''   )
														sys.stdout.flush()

@contextmanager
def 	snake_case_					():





							'''simple docstring'''


							try:
														hide_cursor()
														yield
							finally:
														show_cursor()

