import argparse
import os
from pathlib import Path

import fairseq
import torch
from packaging import version
from torch import nn

from transformers import (
    BartConfig,
    BartForConditionalGeneration,
    BartForSequenceClassification,
    BartModel,
    BartTokenizer,
)
from transformers.utils import logging


_SCREAMING_SNAKE_CASE      						=	["bart.large", "bart.large.mnli", "bart.large.cnn", "bart_xsum/model.pt"]
_SCREAMING_SNAKE_CASE      						=	{"bart.large": BartModel, "bart.large.mnli": BartForSequenceClassification}
if version.parse(fairseq.__version__) < version.parse("""0.9.0"""):
     raise Exception("""requires fairseq >= 0.9.0""")


logging.set_verbosity_info()
_SCREAMING_SNAKE_CASE      						=	logging.get_logger(__name__)

_SCREAMING_SNAKE_CASE      						=	" Hello world! cécé herlolip"

_SCREAMING_SNAKE_CASE      						=	[
    ("model.classification_heads.mnli.dense.weight", "classification_head.dense.weight"),
    ("model.classification_heads.mnli.dense.bias", "classification_head.dense.bias"),
    ("model.classification_heads.mnli.out_proj.weight", "classification_head.out_proj.weight"),
    ("model.classification_heads.mnli.out_proj.bias", "classification_head.out_proj.bias"),
]





def        lowercase(     UpperCamelCase_    )						->     List[Any]:







 '''simple docstring'''
 UpperCamelCase          =	[
     '''encoder.version''',
     '''decoder.version''',
     '''model.encoder.version''',
     '''model.decoder.version''',
     '''_float_tensor''',
 ]
 for k in ignore_keys:
  state_dict.pop(_lowerCAmelCase				, _lowerCAmelCase    )





def        lowercase(     UpperCamelCase_				, UpperCamelCase_				, UpperCamelCase_    )						->     Tuple:







 '''simple docstring'''
 UpperCamelCase          =	dct.pop(_lowerCAmelCase    )
 UpperCamelCase          =	val





def        lowercase(     UpperCamelCase_    )						->     Union[str, Any]:







 '''simple docstring'''
 UpperCamelCase          =	torch.load(_lowerCAmelCase				, map_location="""cpu"""    )
 UpperCamelCase          =	torch.hub.load("""pytorch/fairseq"""				, """bart.large.cnn"""    ).eval()
 hub_interface.model.load_state_dict(sd["""model"""]    )
 return hub_interface





def        lowercase(     UpperCamelCase_    )						->     Union[str, Any]:







 '''simple docstring'''
 UpperCamelCase          =	emb.weight.shape
 UpperCamelCase          =	nn.Linear(_lowerCAmelCase				, _lowerCAmelCase				, bias=_lowerCAmelCase    )
 UpperCamelCase          =	emb.weight.data
 return lin_layer





@torch.no_grad()
def        lowercase(     UpperCamelCase_				, UpperCamelCase_				, UpperCamelCase_=None    )						->     List[Any]:







 '''simple docstring'''
 if not os.path.exists(_lowerCAmelCase    ):
  UpperCamelCase          =	torch.hub.load("""pytorch/fairseq"""				, _lowerCAmelCase    ).eval()
 else:
  UpperCamelCase          =	load_xsum_checkpoint(_lowerCAmelCase    )

 bart.model.upgrade_state_dict(bart.model.state_dict()    )
 if hf_checkpoint_name is None:
  UpperCamelCase          =	checkpoint_path.replace("""."""				, """-"""    )
 UpperCamelCase          =	BartConfig.from_pretrained(_lowerCAmelCase    )
 UpperCamelCase          =	bart.encode(_lowerCAmelCase    ).unsqueeze(0    )
 UpperCamelCase          =	BartTokenizer.from_pretrained(_lowerCAmelCase    ).encode(_lowerCAmelCase				, return_tensors="""pt"""    ).unsqueeze(0    )
 if not torch.eq(_lowerCAmelCase				, _lowerCAmelCase    ).all():
  raise ValueError(
      f"""converted tokenizer and pretrained tokenizer returned different output: {tokens} != {tokensa}"""    )

 if checkpoint_path == "bart.large.mnli":
  UpperCamelCase          =	bart.state_dict()
  remove_ignore_keys_(_lowerCAmelCase    )
  UpperCamelCase          =	state_dict['''model.decoder.embed_tokens.weight''']
  for src, dest in mnli_rename_keys:
   rename_key(_lowerCAmelCase				, _lowerCAmelCase				, _lowerCAmelCase    )
  UpperCamelCase          =	BartForSequenceClassification(_lowerCAmelCase    ).eval()
  model.load_state_dict(_lowerCAmelCase    )
  UpperCamelCase          =	bart.predict("""mnli"""				, _lowerCAmelCase				, return_logits=_lowerCAmelCase    )
  UpperCamelCase          =	model(_lowerCAmelCase    )[0]  # logits
 else:  # no classification heads to worry about
  UpperCamelCase          =	bart.model.state_dict()
  remove_ignore_keys_(_lowerCAmelCase    )
  UpperCamelCase          =	state_dict['''decoder.embed_tokens.weight''']
  UpperCamelCase          =	bart.extract_features(_lowerCAmelCase    )
  if hf_checkpoint_name == "facebook/bart-large":
   UpperCamelCase          =	BartModel(_lowerCAmelCase    ).eval()
   model.load_state_dict(_lowerCAmelCase    )
   UpperCamelCase          =	model(_lowerCAmelCase    ).model[0]
  else:
   UpperCamelCase          =	BartForConditionalGeneration(_lowerCAmelCase    ).eval()  # an existing summarization ckpt
   model.model.load_state_dict(_lowerCAmelCase    )
   if hasattr(_lowerCAmelCase				, """lm_head"""    ):
    UpperCamelCase          =	make_linear_from_emb(model.model.shared    )
   UpperCamelCase          =	model.model(_lowerCAmelCase    )[0]

    # Check results
 if fairseq_output.shape != new_model_outputs.shape:
  raise ValueError(
      f"""`fairseq_output` shape and `new_model_output` shape are different: {fairseq_output.shape=}, {new_model_outputs.shape}"""    )
 if (fairseq_output != new_model_outputs).any().item():
  raise ValueError("""Some values in `fairseq_output` are different from `new_model_outputs`"""    )
 Path(_lowerCAmelCase    ).mkdir(exist_ok=_lowerCAmelCase    )
 model.save_pretrained(_lowerCAmelCase    )


if __name__ == "__main__":
     _SCREAMING_SNAKE_CASE      						=	argparse.ArgumentParser()
     # Required parameters
     parser.add_argument(
         """fairseq_path""", type=str, help="""bart.large, bart.large.cnn or a path to a model.pt on local filesystem."""
     )
     parser.add_argument("""pytorch_dump_folder_path""", default=None, type=str, help="""Path to the output PyTorch model.""")
     parser.add_argument(
         """--hf_config""", default=None, type=str, help="""Which huggingface architecture to use: bart-large-xsum"""
     )
     _SCREAMING_SNAKE_CASE      						=	parser.parse_args()
     convert_bart_checkpoint(args.fairseq_path, args.pytorch_dump_folder_path, hf_checkpoint_name=args.hf_config)





'''simple docstring'''






import unittest

import numpy as np

from transformers.testing_utils import require_flax, require_tf, require_torch
from transformers.utils import (
    expand_dims,
    flatten_dict,
    is_flax_available,
    is_tf_available,
    is_torch_available,
    reshape,
    squeeze,
    transpose,
)


if is_flax_available():
						import jax.numpy as jnp

if is_tf_available():
						import tensorflow as tf

if is_torch_available():
						import torch

class 				SCREAMING_SNAKE_CASE(							unittest.TestCase			):







	"""simple docstring"""






	def      A	(						self			:     Any		)			->		str:
								UpperCAmelCase :       Any 							=		{
								    '''task_specific_params''': {
								        '''summarization''': {'''length_penalty''': 1.0, '''max_length''': 128, '''min_length''': 12, '''num_beams''': 4},
								        '''summarization_cnn''': {'''length_penalty''': 2.0, '''max_length''': 142, '''min_length''': 56, '''num_beams''': 4},
								        '''summarization_xsum''': {'''length_penalty''': 1.0, '''max_length''': 62, '''min_length''': 11, '''num_beams''': 6},
								    }
								}
								UpperCAmelCase :       int 							=		{
								    '''task_specific_params.summarization.length_penalty''': 1.0,
								    '''task_specific_params.summarization.max_length''': 128,
								    '''task_specific_params.summarization.min_length''': 12,
								    '''task_specific_params.summarization.num_beams''': 4,
								    '''task_specific_params.summarization_cnn.length_penalty''': 2.0,
								    '''task_specific_params.summarization_cnn.max_length''': 142,
								    '''task_specific_params.summarization_cnn.min_length''': 56,
								    '''task_specific_params.summarization_cnn.num_beams''': 4,
								    '''task_specific_params.summarization_xsum.length_penalty''': 1.0,
								    '''task_specific_params.summarization_xsum.max_length''': 62,
								    '''task_specific_params.summarization_xsum.min_length''': 11,
								    '''task_specific_params.summarization_xsum.num_beams''': 6,
								}

								self.assertEqual(flatten_dict(__snake_case		)		,			__snake_case		)







	def      A	(						self			:     int		)			->		str:
								UpperCAmelCase :       Any 							=		np.random.randn(3		,			4		)
								self.assertTrue(np.allclose(transpose(__snake_case		)		,			x.transpose()		)		)

								UpperCAmelCase :       str 							=		np.random.randn(3		,			4		,			5		)
								self.assertTrue(np.allclose(transpose(__snake_case		,			axes=(1, 2, 0)		)		,			x.transpose((1, 2, 0)		)		)		)







	@require_torch
	def      A	(						self			:     str		)			->		Union[str, Any]:
								UpperCAmelCase :       Any 							=		np.random.randn(3		,			4		)
								UpperCAmelCase :       List[Any] 							=		torch.tensor(__snake_case		)
								self.assertTrue(np.allclose(transpose(__snake_case		)		,			transpose(__snake_case		).numpy()		)		)

								UpperCAmelCase :       Tuple 							=		np.random.randn(3		,			4		,			5		)
								UpperCAmelCase :       Any 							=		torch.tensor(__snake_case		)
								self.assertTrue(np.allclose(transpose(__snake_case		,			axes=(1, 2, 0)		)		,			transpose(__snake_case		,			axes=(1, 2, 0)		).numpy()		)		)







	@require_tf
	def      A	(						self			:     List[str]		)			->		Optional[Any]:
								UpperCAmelCase :       int 							=		np.random.randn(3		,			4		)
								UpperCAmelCase :       Optional[int] 							=		tf.constant(__snake_case		)
								self.assertTrue(np.allclose(transpose(__snake_case		)		,			transpose(__snake_case		).numpy()		)		)

								UpperCAmelCase :       Union[str, Any] 							=		np.random.randn(3		,			4		,			5		)
								UpperCAmelCase :       str 							=		tf.constant(__snake_case		)
								self.assertTrue(np.allclose(transpose(__snake_case		,			axes=(1, 2, 0)		)		,			transpose(__snake_case		,			axes=(1, 2, 0)		).numpy()		)		)







	@require_flax
	def      A	(						self			:     Tuple		)			->		Any:
								UpperCAmelCase :       List[Any] 							=		np.random.randn(3		,			4		)
								UpperCAmelCase :       List[str] 							=		jnp.array(__snake_case		)
								self.assertTrue(np.allclose(transpose(__snake_case		)		,			np.asarray(transpose(__snake_case		)		)		)		)

								UpperCAmelCase :       Dict 							=		np.random.randn(3		,			4		,			5		)
								UpperCAmelCase :       int 							=		jnp.array(__snake_case		)
								self.assertTrue(np.allclose(transpose(__snake_case		,			axes=(1, 2, 0)		)		,			np.asarray(transpose(__snake_case		,			axes=(1, 2, 0)		)		)		)		)







	def      A	(						self			:     Optional[Any]		)			->		Any:
								UpperCAmelCase :       Union[str, Any] 							=		np.random.randn(3		,			4		)
								self.assertTrue(np.allclose(reshape(__snake_case		,			(4, 3)		)		,			np.reshape(__snake_case		,			(4, 3)		)		)		)

								UpperCAmelCase :       Union[str, Any] 							=		np.random.randn(3		,			4		,			5		)
								self.assertTrue(np.allclose(reshape(__snake_case		,			(12, 5)		)		,			np.reshape(__snake_case		,			(12, 5)		)		)		)







	@require_torch
	def      A	(						self			:     Union[str, Any]		)			->		int:
								UpperCAmelCase :       Dict 							=		np.random.randn(3		,			4		)
								UpperCAmelCase :       Optional[Any] 							=		torch.tensor(__snake_case		)
								self.assertTrue(np.allclose(reshape(__snake_case		,			(4, 3)		)		,			reshape(__snake_case		,			(4, 3)		).numpy()		)		)

								UpperCAmelCase :       List[str] 							=		np.random.randn(3		,			4		,			5		)
								UpperCAmelCase :       List[Any] 							=		torch.tensor(__snake_case		)
								self.assertTrue(np.allclose(reshape(__snake_case		,			(12, 5)		)		,			reshape(__snake_case		,			(12, 5)		).numpy()		)		)







	@require_tf
	def      A	(						self			:     int		)			->		List[str]:
								UpperCAmelCase :       List[Any] 							=		np.random.randn(3		,			4		)
								UpperCAmelCase :       List[str] 							=		tf.constant(__snake_case		)
								self.assertTrue(np.allclose(reshape(__snake_case		,			(4, 3)		)		,			reshape(__snake_case		,			(4, 3)		).numpy()		)		)

								UpperCAmelCase :       List[Any] 							=		np.random.randn(3		,			4		,			5		)
								UpperCAmelCase :       Optional[Any] 							=		tf.constant(__snake_case		)
								self.assertTrue(np.allclose(reshape(__snake_case		,			(12, 5)		)		,			reshape(__snake_case		,			(12, 5)		).numpy()		)		)







	@require_flax
	def      A	(						self			:     Any		)			->		Dict:
								UpperCAmelCase :       Tuple 							=		np.random.randn(3		,			4		)
								UpperCAmelCase :       Union[str, Any] 							=		jnp.array(__snake_case		)
								self.assertTrue(np.allclose(reshape(__snake_case		,			(4, 3)		)		,			np.asarray(reshape(__snake_case		,			(4, 3)		)		)		)		)

								UpperCAmelCase :       Any 							=		np.random.randn(3		,			4		,			5		)
								UpperCAmelCase :       Optional[Any] 							=		jnp.array(__snake_case		)
								self.assertTrue(np.allclose(reshape(__snake_case		,			(12, 5)		)		,			np.asarray(reshape(__snake_case		,			(12, 5)		)		)		)		)







	def      A	(						self			:     List[Any]		)			->		List[Any]:
								UpperCAmelCase :       Union[str, Any] 							=		np.random.randn(1		,			3		,			4		)
								self.assertTrue(np.allclose(squeeze(__snake_case		)		,			np.squeeze(__snake_case		)		)		)

								UpperCAmelCase :       str 							=		np.random.randn(1		,			4		,			1		,			5		)
								self.assertTrue(np.allclose(squeeze(__snake_case		,			axis=2		)		,			np.squeeze(__snake_case		,			axis=2		)		)		)







	@require_torch
	def      A	(						self			:     Optional[int]		)			->		Union[str, Any]:
								UpperCAmelCase :       Optional[int] 							=		np.random.randn(1		,			3		,			4		)
								UpperCAmelCase :       List[str] 							=		torch.tensor(__snake_case		)
								self.assertTrue(np.allclose(squeeze(__snake_case		)		,			squeeze(__snake_case		).numpy()		)		)

								UpperCAmelCase :       Any 							=		np.random.randn(1		,			4		,			1		,			5		)
								UpperCAmelCase :       str 							=		torch.tensor(__snake_case		)
								self.assertTrue(np.allclose(squeeze(__snake_case		,			axis=2		)		,			squeeze(__snake_case		,			axis=2		).numpy()		)		)







	@require_tf
	def      A	(						self			:     Optional[Any]		)			->		Dict:
								UpperCAmelCase :       int 							=		np.random.randn(1		,			3		,			4		)
								UpperCAmelCase :       Optional[int] 							=		tf.constant(__snake_case		)
								self.assertTrue(np.allclose(squeeze(__snake_case		)		,			squeeze(__snake_case		).numpy()		)		)

								UpperCAmelCase :       List[str] 							=		np.random.randn(1		,			4		,			1		,			5		)
								UpperCAmelCase :       Optional[int] 							=		tf.constant(__snake_case		)
								self.assertTrue(np.allclose(squeeze(__snake_case		,			axis=2		)		,			squeeze(__snake_case		,			axis=2		).numpy()		)		)







	@require_flax
	def      A	(						self			:     List[Any]		)			->		Dict:
								UpperCAmelCase :       Optional[int] 							=		np.random.randn(1		,			3		,			4		)
								UpperCAmelCase :       int 							=		jnp.array(__snake_case		)
								self.assertTrue(np.allclose(squeeze(__snake_case		)		,			np.asarray(squeeze(__snake_case		)		)		)		)

								UpperCAmelCase :       str 							=		np.random.randn(1		,			4		,			1		,			5		)
								UpperCAmelCase :       int 							=		jnp.array(__snake_case		)
								self.assertTrue(np.allclose(squeeze(__snake_case		,			axis=2		)		,			np.asarray(squeeze(__snake_case		,			axis=2		)		)		)		)







	def      A	(						self			:     Optional[Any]		)			->		int:
								UpperCAmelCase :       Optional[Any] 							=		np.random.randn(3		,			4		)
								self.assertTrue(np.allclose(expand_dims(__snake_case		,			axis=1		)		,			np.expand_dims(__snake_case		,			axis=1		)		)		)







	@require_torch
	def      A	(						self			:     List[str]		)			->		Tuple:
								UpperCAmelCase :       Tuple 							=		np.random.randn(3		,			4		)
								UpperCAmelCase :       Tuple 							=		torch.tensor(__snake_case		)
								self.assertTrue(np.allclose(expand_dims(__snake_case		,			axis=1		)		,			expand_dims(__snake_case		,			axis=1		).numpy()		)		)







	@require_tf
	def      A	(						self			:     List[str]		)			->		Union[str, Any]:
								UpperCAmelCase :       Union[str, Any] 							=		np.random.randn(3		,			4		)
								UpperCAmelCase :       Any 							=		tf.constant(__snake_case		)
								self.assertTrue(np.allclose(expand_dims(__snake_case		,			axis=1		)		,			expand_dims(__snake_case		,			axis=1		).numpy()		)		)







	@require_flax
	def      A	(						self			:     Any		)			->		List[Any]:
								UpperCAmelCase :       List[str] 							=		np.random.randn(3		,			4		)
								UpperCAmelCase :       str 							=		jnp.array(__snake_case		)
								self.assertTrue(np.allclose(expand_dims(__snake_case		,			axis=1		)		,			np.asarray(expand_dims(__snake_case		,			axis=1		)		)		)		)





