


"""simple docstring"""
import logging
import math
import os
from dataclasses import dataclass, field
from glob import glob
from typing import Optional

from torch.utils.data import ConcatDataset

import transformers
from transformers import (
    CONFIG_MAPPING,
    MODEL_WITH_LM_HEAD_MAPPING,
    AutoConfig,
    AutoModelWithLMHead,
    AutoTokenizer,
    DataCollatorForLanguageModeling,
    DataCollatorForPermutationLanguageModeling,
    DataCollatorForWholeWordMask,
    HfArgumentParser,
    LineByLineTextDataset,
    LineByLineWithRefDataset,
    PreTrainedTokenizer,
    TextDataset,
    Trainer,
    TrainingArguments,
    set_seed,
)
from transformers.trainer_utils import is_main_process


SCREAMING_SNAKE_CASE :    int									=				logging.getLogger(__name__)


SCREAMING_SNAKE_CASE :    Dict									=				list(MODEL_WITH_LM_HEAD_MAPPING.keys())
SCREAMING_SNAKE_CASE :    Any									=				tuple(conf.model_type for conf in MODEL_CONFIG_CLASSES)



@dataclass
class 			_UpperCAmelCase :






		'''simple docstring'''

		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={
		        'help': (
		            'The model checkpoint for weights initialization. Leave None if you want to train a model from'
		            ' scratch.'
		        )
		    },				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'If training from scratch, pass a model type from the list: ' + ', '.join(__snake_case				)},				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'Pretrained config name or path if not the same as model_name'}				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'Pretrained tokenizer name or path if not the same as model_name'}				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'Where do you want to store the pretrained models downloaded from huggingface.co'},				)



@dataclass
class 			_UpperCAmelCase :






		'''simple docstring'''

		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'The input training data file (a text file).'}				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={
		        'help': (
		            'The input training data files (multiple files in glob format). '
		            'Very often splitting large files to smaller files can prevent tokenizer going out of memory'
		        )
		    },				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'An optional input evaluation data file to evaluate the perplexity on (a text file).'},				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'An optional input train ref data file for whole word mask in Chinese.'},				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'An optional input eval ref data file for whole word mask in Chinese.'},				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'Whether distinct lines of text in the dataset are to be handled as distinct sequences.'},				)

		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'Train with masked-language modeling loss instead of language modeling.'}				)
		lowerCamelCase__				=field(default=__snake_case,				metadata={'help': 'Whether ot not to use whole word mask.'}				)
		lowerCamelCase__				=field(
		    default=0.1_5,				metadata={'help': 'Ratio of tokens to mask for masked language modeling loss'}				)
		lowerCamelCase__				=field(
		    default=1 / 6,				metadata={
		        'help': (
		            'Ratio of length of a span of masked tokens to surrounding context length for permutation language'
		            ' modeling.'
		        )
		    },				)
		lowerCamelCase__				=field(
		    default=5,				metadata={'help': 'Maximum length of a span of masked tokens for permutation language modeling.'}				)

		lowerCamelCase__				=field(
		    default=-1,				metadata={
		        'help': (
		            'Optional input sequence length after tokenization.'
		            'The training dataset will be truncated in block of this size for training.'
		            'Default to the model max input length for single sentence inputs (take into account special tokens).'
		        )
		    },				)
		lowerCamelCase__				=field(
		    default=__snake_case,				metadata={'help': 'Overwrite the cached training and evaluation sets'}				)






def 		lowercase							(     _snake_case						:      DataTrainingArguments     ,   _snake_case						:      PreTrainedTokenizer     ,   _snake_case						:      bool = False     ,   _snake_case						:      Optional[str] = None     ,   )     ->Any:
	"""simple docstring"""





	def _dataset(_snake_case						:      List[Any]     ,   _snake_case						:      str=None     ):
		if args.line_by_line:
			if ref_path is not None:
				if not args.whole_word_mask or not args.mlm:
					raise ValueError('''You need to set world whole masking and mlm to True for Chinese Whole Word Mask'''     )
				return LineByLineWithRefDataset(
				    tokenizer=_snake_case     ,   file_path=_snake_case     ,   block_size=args.block_size     ,   ref_path=_snake_case     ,   )

			return LineByLineTextDataset(tokenizer=_snake_case     ,   file_path=_snake_case     ,   block_size=args.block_size     )
		else:
			return TextDataset(
			    tokenizer=_snake_case     ,   file_path=_snake_case     ,   block_size=args.block_size     ,   overwrite_cache=args.overwrite_cache     ,   cache_dir=_snake_case     ,   )

	if evaluate:
		return _dataset(args.eval_data_file     ,   args.eval_ref_file     )
	elif args.train_data_files:
		return ConcatDataset([_dataset(_snake_case     ) for f in glob(args.train_data_files     )]     )
	else:
		return _dataset(args.train_data_file     ,   args.train_ref_file     )






def 		lowercase							(     )     ->List[Any]:
	"""simple docstring"""





	__snake_case	:						List[Any]						=				HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments)     )
	__snake_case	,							__snake_case	,							__snake_case	:						Union[str, Any]						=				parser.parse_args_into_dataclasses()

	if data_args.eval_data_file is None and training_args.do_eval:
		raise ValueError(
		    '''Cannot do evaluation without an evaluation data file. Either supply a file to --eval_data_file '''
		    '''or remove the --do_eval argument.'''     )
	if (
	    os.path.exists(training_args.output_dir     )
	    and os.listdir(training_args.output_dir     )
	    and training_args.do_train
	    and not training_args.overwrite_output_dir
	):
		raise ValueError(
		    f"""Output directory ({training_args.output_dir}) already exists and is not empty. Use"""
		    ''' --overwrite_output_dir to overcome.'''     )

	# Setup logging
	logging.basicConfig(
	    format='''%(asctime)s - %(levelname)s - %(name)s - %(message)s'''     ,   datefmt='''%m/%d/%Y %H:%M:%S'''     ,   level=logging.INFO if training_args.local_rank in [-1, 0] else logging.WARN     ,   )
	logger.warning(
	    '''Process rank: %s, device: %s, n_gpu: %s, distributed training: %s, 16-bits training: %s'''     ,   training_args.local_rank     ,   training_args.device     ,   training_args.n_gpu     ,   bool(training_args.local_rank != -1     )     ,   training_args.fpaa     ,   )
	# Set the verbosity to info of the Transformers logger (on main process only):
	if is_main_process(training_args.local_rank     ):
		transformers.utils.logging.set_verbosity_info()
		transformers.utils.logging.enable_default_handler()
		transformers.utils.logging.enable_explicit_format()
	logger.info('''Training/evaluation parameters %s'''     ,   _snake_case     )

	# Set seed
	set_seed(training_args.seed     )

	# Load pretrained model and tokenizer
	#
	# Distributed training:
	# The .from_pretrained methods guarantee that only one local process can concurrently
	# download model & vocab.

	if model_args.config_name:
		__snake_case	:						Optional[Any]						=				AutoConfig.from_pretrained(model_args.config_name     ,   cache_dir=model_args.cache_dir     )
	elif model_args.model_name_or_path:
		__snake_case	:						Optional[Any]						=				AutoConfig.from_pretrained(model_args.model_name_or_path     ,   cache_dir=model_args.cache_dir     )
	else:
		__snake_case	:						Tuple						=				CONFIG_MAPPING[model_args.model_type]()
		logger.warning('''You are instantiating a new config instance from scratch.'''     )

	if model_args.tokenizer_name:
		__snake_case	:						Dict						=				AutoTokenizer.from_pretrained(model_args.tokenizer_name     ,   cache_dir=model_args.cache_dir     )
	elif model_args.model_name_or_path:
		__snake_case	:						List[Any]						=				AutoTokenizer.from_pretrained(model_args.model_name_or_path     ,   cache_dir=model_args.cache_dir     )
	else:
		raise ValueError(
		    '''You are instantiating a new tokenizer from scratch. This is not supported, but you can do it from another'''
		    ''' script, save it,and load it from here, using --tokenizer_name'''     )

	if model_args.model_name_or_path:
		__snake_case	:						int						=				AutoModelWithLMHead.from_pretrained(
		    model_args.model_name_or_path     ,   from_tf=bool('''.ckpt''' in model_args.model_name_or_path     )     ,   config=_snake_case     ,   cache_dir=model_args.cache_dir     ,   )
	else:
		logger.info('''Training new model from scratch'''     )
		__snake_case	:						List[Any]						=				AutoModelWithLMHead.from_config(_snake_case     )

	model.resize_token_embeddings(len(_snake_case     )     )

	if config.model_type in ["bert", "roberta", "distilbert", "camembert"] and not data_args.mlm:
		raise ValueError(
		    '''BERT and RoBERTa-like models do not have LM heads but masked LM heads. They must be run using the'''
		    '''--mlm flag (masked language modeling).'''     )

	if data_args.block_size <= 0:
		__snake_case	:						List[str]						=				tokenizer.max_len
		# Our input block size will be the max possible for the model
	else:
		__snake_case	:						Optional[int]						=				min(data_args.block_size     ,   tokenizer.max_len     )

	# Get datasets

	__snake_case	:						Optional[Any]						=				(
	    get_dataset(_snake_case     ,   tokenizer=_snake_case     ,   cache_dir=model_args.cache_dir     ) if training_args.do_train else None
	)
	__snake_case	:						Any						=				(
	    get_dataset(_snake_case     ,   tokenizer=_snake_case     ,   evaluate=_snake_case     ,   cache_dir=model_args.cache_dir     )
	    if training_args.do_eval
	    else None
	)
	if config.model_type == "xlnet":
		__snake_case	:						List[Any]						=				DataCollatorForPermutationLanguageModeling(
		    tokenizer=_snake_case     ,   plm_probability=data_args.plm_probability     ,   max_span_length=data_args.max_span_length     ,   )
	else:
		if data_args.mlm and data_args.whole_word_mask:
			__snake_case	:						Optional[Any]						=				DataCollatorForWholeWordMask(
			    tokenizer=_snake_case     ,   mlm_probability=data_args.mlm_probability     )
		else:
			__snake_case	:						Union[str, Any]						=				DataCollatorForLanguageModeling(
			    tokenizer=_snake_case     ,   mlm=data_args.mlm     ,   mlm_probability=data_args.mlm_probability     )

    # Initialize our Trainer
	__snake_case	:						Optional[int]						=				Trainer(
	    model=_snake_case     ,   args=_snake_case     ,   data_collator=_snake_case     ,   train_dataset=_snake_case     ,   eval_dataset=_snake_case     ,   prediction_loss_only=_snake_case     ,   )

	# Training
	if training_args.do_train:
		__snake_case	:						Dict						=				(
		    model_args.model_name_or_path
		    if model_args.model_name_or_path is not None and os.path.isdir(model_args.model_name_or_path     )
		    else None
		)
		trainer.train(model_path=_snake_case     )
		trainer.save_model()
		# For convenience, we also re-save the tokenizer to the same directory,
		# so that you can share your model easily on huggingface.co/models =)
		if trainer.is_world_master():
			tokenizer.save_pretrained(training_args.output_dir     )

    # Evaluation
	__snake_case	:						int						=				{}
	if training_args.do_eval:
		logger.info('''*** Evaluate ***'''     )

		__snake_case	:						Dict						=				trainer.evaluate()

		__snake_case	:						Dict						=				math.exp(eval_output['''eval_loss''']     )
		__snake_case	:						List[Any]						=				{'''perplexity''': perplexity}

		__snake_case	:						str						=				os.path.join(training_args.output_dir     ,   '''eval_results_lm.txt'''     )
		if trainer.is_world_master():
			with open(_snake_case     ,   '''w'''     ) as writer:
				logger.info('''***** Eval results *****'''     )
				for key in sorted(result.keys()     ):
					logger.info('''  %s = %s'''     ,   _snake_case     ,   str(result[key]     )     )
					writer.write('''%s = %s\n''' % (key, str(result[key]     ))     )

		results.update(_snake_case     )

	return results






def 		lowercase							(     _snake_case						:      Optional[int]     )     ->Tuple:
	"""simple docstring"""





	main()


if __name__ == "__main__":
			main()











"""simple docstring"""






import unittest

import numpy as np
import torch

from diffusers import DDIMPipeline, DDIMScheduler, UNetaDModel
from diffusers.utils.testing_utils import enable_full_determinism, require_torch_gpu, slow, torch_device

from ..pipeline_params import UNCONDITIONAL_IMAGE_GENERATION_BATCH_PARAMS, UNCONDITIONAL_IMAGE_GENERATION_PARAMS
from ..test_pipelines_common import PipelineTesterMixin


enable_full_determinism()






class lowerCAmelCase__	(     lowercase,	unittest.TestCase						):






			'''simple docstring'''



			lowerCamelCase__      =			DDIMPipeline
			lowerCamelCase__      =			UNCONDITIONAL_IMAGE_GENERATION_PARAMS
			lowerCamelCase__      =			PipelineTesterMixin.required_optional_params - {
			    """num_images_per_prompt""",
			    """latents""",
			    """callback""",
			    """callback_steps""",
			}
			lowerCamelCase__      =			UNCONDITIONAL_IMAGE_GENERATION_BATCH_PARAMS
			lowerCamelCase__      =			False
			def 					A_    (  self  ):
							torch.manual_seed(0  )
							_lowerCamelCase     :			List[Any]    =    UNetaDModel(
							    block_out_channels=(32, 64)  ,      layers_per_block=2  ,      sample_size=32  ,      in_channels=3  ,      out_channels=3  ,      down_block_types=('DownBlock2D', 'AttnDownBlock2D')  ,      up_block_types=('AttnUpBlock2D', 'UpBlock2D')  ,      )
							_lowerCamelCase     :			List[str]    =    DDIMScheduler()
							_lowerCamelCase     :			Optional[int]    =    {'unet': unet, 'scheduler': scheduler}
							return components
			def 					A_    (  self  ,      lowercase  ,      lowercase=0  ):
							if str(lowercase  ).startswith('mps'  ):
											_lowerCamelCase     :			Dict    =    torch.manual_seed(lowercase  )
							else:
											_lowerCamelCase     :			List[str]    =    torch.Generator(device=lowercase  ).manual_seed(lowercase  )
							_lowerCamelCase     :			Tuple    =    {
							    'batch_size': 1,
							    'generator': generator,
							    'num_inference_steps': 2,
							    'output_type': 'numpy',
							}
							return inputs
			def 					A_    (  self  ):
							_lowerCamelCase     :			Any    =    'cpu'

							_lowerCamelCase     :			Tuple    =    self.get_dummy_components()
							_lowerCamelCase     :			Optional[Any]    =    self.pipeline_class(**lowercase  )
							pipe.to(lowercase  )
							pipe.set_progress_bar_config(disable=lowercase  )

							_lowerCamelCase     :			str    =    self.get_dummy_inputs(lowercase  )
							_lowerCamelCase     :			int    =    pipe(**lowercase  ).images
							_lowerCamelCase     :			Any    =    image[0, -3:, -3:, -1]

							self.assertEqual(image.shape  ,      (1, 32, 32, 3)  )
							_lowerCamelCase     :			Tuple    =    np.array(
							    [1.000E00, 5.717E-01, 4.717E-01, 1.000E00, 0.000E00, 1.000E00, 3.000E-04, 0.000E00, 9.000E-04]  )
							_lowerCamelCase     :			str    =    np.abs(image_slice.flatten() - expected_slice  ).max()
							self.assertLessEqual(lowercase  ,      1E-3  )
			def 					A_    (  self  ):
							super().test_dict_tuple_outputs_equivalent(expected_max_difference=3E-3  )
			def 					A_    (  self  ):
							super().test_save_load_local(expected_max_difference=3E-3  )
			def 					A_    (  self  ):
							super().test_save_load_optional_components(expected_max_difference=3E-3  )






			def 					A_    (  self  ):
							super().test_inference_batch_single_identical(expected_max_diff=3E-3  )






@slow
@require_torch_gpu
class lowerCAmelCase__	(     unittest.TestCase						):






			'''simple docstring'''



			def 					A_    (  self  ):
							_lowerCamelCase     :			Optional[Any]    =    'google/ddpm-cifar10-32'

							_lowerCamelCase     :			Optional[Any]    =    UNetaDModel.from_pretrained(lowercase  )
							_lowerCamelCase     :			Dict    =    DDIMScheduler()

							_lowerCamelCase     :			Dict    =    DDIMPipeline(unet=lowercase  ,      scheduler=lowercase  )
							ddim.to(lowercase  )
							ddim.set_progress_bar_config(disable=lowercase  )

							_lowerCamelCase     :			List[str]    =    torch.manual_seed(0  )
							_lowerCamelCase     :			str    =    ddim(generator=lowercase  ,      eta=0.0  ,      output_type='numpy'  ).images

							_lowerCamelCase     :			Dict    =    image[0, -3:, -3:, -1]

							assert image.shape == (1, 32, 32, 3)
							_lowerCamelCase     :			List[Any]    =    np.array([0.17_23, 0.16_17, 0.16_00, 0.16_26, 0.14_97, 0.15_13, 0.15_05, 0.14_42, 0.14_53]  )

							assert np.abs(image_slice.flatten() - expected_slice  ).max() < 1E-2






			def 					A_    (  self  ):
							_lowerCamelCase     :			Optional[int]    =    'google/ddpm-ema-bedroom-256'

							_lowerCamelCase     :			str    =    UNetaDModel.from_pretrained(lowercase  )
							_lowerCamelCase     :			str    =    DDIMScheduler.from_pretrained(lowercase  )

							_lowerCamelCase     :			Optional[int]    =    DDIMPipeline(unet=lowercase  ,      scheduler=lowercase  )
							ddpm.to(lowercase  )
							ddpm.set_progress_bar_config(disable=lowercase  )

							_lowerCamelCase     :			Tuple    =    torch.manual_seed(0  )
							_lowerCamelCase     :			int    =    ddpm(generator=lowercase  ,      output_type='numpy'  ).images

							_lowerCamelCase     :			Dict    =    image[0, -3:, -3:, -1]

							assert image.shape == (1, 256, 256, 3)
							_lowerCamelCase     :			str    =    np.array([0.00_60, 0.02_01, 0.03_44, 0.00_24, 0.00_18, 0.00_02, 0.00_22, 0.00_00, 0.00_69]  )

							assert np.abs(image_slice.flatten() - expected_slice  ).max() < 1E-2