



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


_lowercase								=						['bart.large', 'bart.large.mnli', 'bart.large.cnn', 'bart_xsum/model.pt']
_lowercase								=						{'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()
_lowercase								=						logging.get_logger(__name__)

_lowercase								=						' Hello world! cécé herlolip'

_lowercase								=						[
    ('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      _A				(UpperCamelCase		:      Union[str, Any] )  ->Dict:



			'''simple docstring'''







			lowerCamelCase__ :      List[str]								=		[
			    "encoder.version",
			    "decoder.version",
			    "model.encoder.version",
			    "model.decoder.version",
			    "_float_tensor",
			]
			for k in ignore_keys:
						state_dict.pop(_lowerCamelCase      ,			_lowerCamelCase )






def      _A				(UpperCamelCase		:      Optional[int]      ,			UpperCamelCase		:      Any      ,			UpperCamelCase		:      Union[str, Any] )  ->Dict:



			'''simple docstring'''







			lowerCamelCase__ :      Optional[int]								=		dct.pop(_lowerCamelCase )
			lowerCamelCase__ :      Any								=		val






def      _A				(UpperCamelCase		:      List[Any] )  ->Any:



			'''simple docstring'''







			lowerCamelCase__ :      Any								=		torch.load(_lowerCamelCase      ,			map_location="""cpu""" )
			lowerCamelCase__ :      List[str]								=		torch.hub.load("""pytorch/fairseq"""      ,			"""bart.large.cnn""" ).eval()
			hub_interface.model.load_state_dict(sd["""model"""] )
			return hub_interface






def      _A				(UpperCamelCase		:      Optional[int] )  ->Optional[int]:



			'''simple docstring'''







			lowerCamelCase__ :      Optional[int]								=		emb.weight.shape
			lowerCamelCase__ :      Tuple								=		nn.Linear(_lowerCamelCase      ,			_lowerCamelCase      ,			bias=_lowerCamelCase )
			lowerCamelCase__ :      Optional[Any]								=		emb.weight.data
			return lin_layer






@torch.no_grad()
def      _A				(UpperCamelCase		:      Any      ,			UpperCamelCase		:      int      ,			UpperCamelCase		:      Optional[int]=None )  ->Dict:



			'''simple docstring'''







			if not os.path.exists(_lowerCamelCase ):
						lowerCamelCase__ :      List[str]								=		torch.hub.load("""pytorch/fairseq"""      ,			_lowerCamelCase ).eval()
			else:
						lowerCamelCase__ :      int								=		load_xsum_checkpoint(_lowerCamelCase )

			bart.model.upgrade_state_dict(bart.model.state_dict() )
			if hf_checkpoint_name is None:
						lowerCamelCase__ :      int								=		checkpoint_path.replace("""."""      ,			"""-""" )
			lowerCamelCase__ :      Union[str, Any]								=		BartConfig.from_pretrained(_lowerCamelCase )
			lowerCamelCase__ :      Optional[Any]								=		bart.encode(_lowerCamelCase ).unsqueeze(0 )
			lowerCamelCase__ :      Union[str, Any]								=		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":
						lowerCamelCase__ :      str								=		bart.state_dict()
						remove_ignore_keys_(_lowerCamelCase )
						lowerCamelCase__ :      Optional[Any]								=		state_dict["model.decoder.embed_tokens.weight"]
						for src, dest in mnli_rename_keys:
									rename_key(_lowerCamelCase      ,			_lowerCamelCase      ,			_lowerCamelCase )
						lowerCamelCase__ :      Any								=		BartForSequenceClassification(_lowerCamelCase ).eval()
						model.load_state_dict(_lowerCamelCase )
						lowerCamelCase__ :      Dict								=		bart.predict("""mnli"""      ,			_lowerCamelCase      ,			return_logits=_lowerCamelCase )
						lowerCamelCase__ :      Tuple								=		model(_lowerCamelCase )[0]  # logits
			else:  # no classification heads to worry about
						lowerCamelCase__ :      Optional[Any]								=		bart.model.state_dict()
						remove_ignore_keys_(_lowerCamelCase )
						lowerCamelCase__ :      List[Any]								=		state_dict["decoder.embed_tokens.weight"]
						lowerCamelCase__ :      Union[str, Any]								=		bart.extract_features(_lowerCamelCase )
						if hf_checkpoint_name == "facebook/bart-large":
									lowerCamelCase__ :      Union[str, Any]								=		BartModel(_lowerCamelCase ).eval()
									model.load_state_dict(_lowerCamelCase )
									lowerCamelCase__ :      int								=		model(_lowerCamelCase ).model[0]
						else:
									lowerCamelCase__ :      int								=		BartForConditionalGeneration(_lowerCamelCase ).eval()  # an existing summarization ckpt
									model.model.load_state_dict(_lowerCamelCase )
									if hasattr(_lowerCamelCase      ,			"""lm_head""" ):
												lowerCamelCase__ :      List[str]								=		make_linear_from_emb(model.model.shared )
									lowerCamelCase__ :      Any								=		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__":
				_lowercase								=						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'''
				)
				_lowercase								=						parser.parse_args()
				convert_bart_checkpoint(args.fairseq_path, args.pytorch_dump_folder_path, hf_checkpoint_name=args.hf_config)








import random
import unittest

import numpy as np

import transformers
from transformers import is_flax_available, is_torch_available
from transformers.testing_utils import is_pt_flax_cross_test, require_flax


if is_flax_available():
				import os

				import jax.numpy as jnp
				from jax import jit

				from transformers import AutoTokenizer, FlaxAutoModelForCausalLM
				from transformers.modeling_flax_pytorch_utils import load_flax_weights_in_pytorch_model

				_lowercase     							=						'''0.12'''  # assumed parallelism: 8


if is_torch_available():
				import torch






def      _A				(UpperCamelCase		:      Dict      ,			UpperCamelCase		:      int      ,			UpperCamelCase		:      Optional[Any]=None )  ->Optional[int]:



			'''simple docstring'''







			if rng is None:
						lowerCamelCase__ :      List[Any]								=		random.Random()

			lowerCamelCase__ :      Tuple								=		1
			for dim in shape:
						total_dims *= dim

			lowerCamelCase__ :      str								=		[]
			for _ in range(UpperCamelCase ):
						values.append(rng.randint(0      ,			vocab_size - 1 ) )

			lowerCamelCase__ :      str								=		np.array(UpperCamelCase      ,			dtype=jnp.intaa ).reshape(UpperCamelCase )

			return output






def      _A				(UpperCamelCase		:      str      ,			UpperCamelCase		:      Dict=None )  ->List[str]:



			'''simple docstring'''







			lowerCamelCase__ :      Any								=		ids_tensor(UpperCamelCase      ,			vocab_size=2      ,			rng=UpperCamelCase )
			# make sure that at least one token is attended to for each batch
			lowerCamelCase__ :      int								=		1
			return attn_mask
@require_flax
class 				__A					:
			UpperCamelCase					:List[Any]     =			None
			UpperCamelCase					:Dict     =			()





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__ :      Dict								=		self.model_tester.prepare_config_and_inputs_for_common()

						# cut to half length & take max batch_size 3
						lowerCamelCase__ :      List[Any]								=		2
						lowerCamelCase__ :      Any								=		inputs["""input_ids"""].shape[-1] // 2
						lowerCamelCase__ :      Dict								=		inputs["""input_ids"""][:max_batch_size, :sequence_length]

						lowerCamelCase__ :      List[Any]								=		jnp.ones_like(__magic_name__				)
						lowerCamelCase__ :      Dict								=		attention_mask[:max_batch_size, :sequence_length]

						# generate max 5 tokens
						lowerCamelCase__ :      Tuple								=		input_ids.shape[-1] + 5
						if config.eos_token_id is not None and config.pad_token_id is None:
									# hack to allow generate for models such as GPT2 as is done in `generate()`
									lowerCamelCase__ :      List[Any]								=		config.eos_token_id
						return config, input_ids, attention_mask, max_length





			@is_pt_flax_cross_test
			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      List[Any]								=		self._get_input_ids_and_config()
						lowerCamelCase__ :      Tuple								=		False
						lowerCamelCase__ :      Tuple								=		max_length
						lowerCamelCase__ :      List[Any]								=		0

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      List[Any]								=		model_class(__magic_name__				)

									lowerCamelCase__ :      Tuple								=		model_class.__name__[4:]  # Skip the "Flax" at the beginning
									lowerCamelCase__ :      Union[str, Any]								=		getattr(__magic_name__							,    __magic_name__				)
									lowerCamelCase__ :      Dict								=		pt_model_class(__magic_name__				).eval()
									lowerCamelCase__ :      Union[str, Any]								=		load_flax_weights_in_pytorch_model(__magic_name__							,    flax_model.params				)

									lowerCamelCase__ :      str								=		flax_model.generate(__magic_name__				).sequences
									lowerCamelCase__ :      str								=		pt_model.generate(torch.tensor(__magic_name__							,    dtype=torch.long				)				)

									if flax_generation_outputs.shape[-1] > pt_generation_outputs.shape[-1]:
												lowerCamelCase__ :      Optional[Any]								=		flax_generation_outputs[:, : pt_generation_outputs.shape[-1]]

									self.assertListEqual(pt_generation_outputs.numpy().tolist()							,    flax_generation_outputs.tolist()				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      Tuple								=		self._get_input_ids_and_config()
						lowerCamelCase__ :      Dict								=		False
						lowerCamelCase__ :      str								=		max_length

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      Tuple								=		model_class(__magic_name__				)

									lowerCamelCase__ :      int								=		model.generate(__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[-1]							,    __magic_name__				)

									lowerCamelCase__ :      int								=		jit(model.generate				)
									lowerCamelCase__ :      List[str]								=		jit_generate(__magic_name__				).sequences

									self.assertListEqual(generation_outputs.tolist()							,    jit_generation_outputs.tolist()				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      Union[str, Any]								=		self._get_input_ids_and_config()
						lowerCamelCase__ :      List[str]								=		True
						lowerCamelCase__ :      Dict								=		max_length

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      str								=		model_class(__magic_name__				)

									lowerCamelCase__ :      Dict								=		model.generate(__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[-1]							,    __magic_name__				)

									lowerCamelCase__ :      Tuple								=		jit(model.generate				)
									lowerCamelCase__ :      List[str]								=		jit_generate(__magic_name__				).sequences

									self.assertListEqual(generation_outputs.tolist()							,    jit_generation_outputs.tolist()				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      Dict								=		self._get_input_ids_and_config()
						lowerCamelCase__ :      Union[str, Any]								=		False
						lowerCamelCase__ :      Dict								=		max_length
						lowerCamelCase__ :      str								=		2

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      Optional[int]								=		model_class(__magic_name__				)

									lowerCamelCase__ :      Union[str, Any]								=		model.generate(__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[-1]							,    __magic_name__				)

									lowerCamelCase__ :      Dict								=		jit(model.generate				)
									lowerCamelCase__ :      Optional[int]								=		jit_generate(__magic_name__				).sequences

									self.assertListEqual(generation_outputs.tolist()							,    jit_generation_outputs.tolist()				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      int								=		self._get_input_ids_and_config()
						lowerCamelCase__ :      Dict								=		False
						lowerCamelCase__ :      List[Any]								=		max_length
						lowerCamelCase__ :      List[Any]								=		2
						lowerCamelCase__ :      List[str]								=		2

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      Optional[Any]								=		model_class(__magic_name__				)

									lowerCamelCase__ :      Union[str, Any]								=		model.generate(__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[0]							,    input_ids.shape[0] * config.num_return_sequences				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      Tuple								=		self._get_input_ids_and_config()
						lowerCamelCase__ :      Optional[int]								=		True
						lowerCamelCase__ :      str								=		max_length
						lowerCamelCase__ :      Optional[int]								=		0.8
						lowerCamelCase__ :      List[Any]								=		10
						lowerCamelCase__ :      int								=		0.3
						lowerCamelCase__ :      Union[str, Any]								=		1
						lowerCamelCase__ :      int								=		8
						lowerCamelCase__ :      Tuple								=		9

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      Optional[Any]								=		model_class(__magic_name__				)

									lowerCamelCase__ :      Any								=		model.generate(__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[-1]							,    __magic_name__				)

									lowerCamelCase__ :      Optional[int]								=		jit(model.generate				)
									lowerCamelCase__ :      List[Any]								=		jit_generate(__magic_name__				).sequences

									self.assertListEqual(generation_outputs.tolist()							,    jit_generation_outputs.tolist()				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      List[str]								=		self._get_input_ids_and_config()
						lowerCamelCase__ :      str								=		max_length
						lowerCamelCase__ :      List[str]								=		1
						lowerCamelCase__ :      Optional[int]								=		8
						lowerCamelCase__ :      Union[str, Any]								=		9

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      Dict								=		model_class(__magic_name__				)

									lowerCamelCase__ :      Tuple								=		model.generate(__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[-1]							,    __magic_name__				)

									lowerCamelCase__ :      Optional[int]								=		jit(model.generate				)
									lowerCamelCase__ :      Dict								=		jit_generate(__magic_name__				).sequences

									self.assertListEqual(generation_outputs.tolist()							,    jit_generation_outputs.tolist()				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      int								=		self._get_input_ids_and_config()
						lowerCamelCase__ :      Tuple								=		max_length
						lowerCamelCase__ :      Optional[int]								=		2
						lowerCamelCase__ :      Union[str, Any]								=		1
						lowerCamelCase__ :      Tuple								=		8
						lowerCamelCase__ :      Tuple								=		9

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      Optional[int]								=		model_class(__magic_name__				)

									lowerCamelCase__ :      List[Any]								=		model.generate(__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[-1]							,    __magic_name__				)

									lowerCamelCase__ :      List[Any]								=		jit(model.generate				)
									lowerCamelCase__ :      Union[str, Any]								=		jit_generate(__magic_name__				).sequences

									self.assertListEqual(generation_outputs.tolist()							,    jit_generation_outputs.tolist()				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      Tuple								=		self._get_input_ids_and_config()

						# pad attention mask on the left
						lowerCamelCase__ :      Any								=		attention_mask.at[(0, 0)].set(0				)

						lowerCamelCase__ :      List[str]								=		False
						lowerCamelCase__ :      str								=		max_length

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      Dict								=		model_class(__magic_name__				)

									lowerCamelCase__ :      List[str]								=		model.generate(__magic_name__							,    attention_mask=__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[-1]							,    __magic_name__				)

									lowerCamelCase__ :      Tuple								=		jit(model.generate				)
									lowerCamelCase__ :      Any								=		jit_generate(__magic_name__							,    attention_mask=__magic_name__				).sequences

									self.assertListEqual(generation_outputs.tolist()							,    jit_generation_outputs.tolist()				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      Optional[Any]								=		self._get_input_ids_and_config()

						# pad attention mask on the left
						lowerCamelCase__ :      Optional[Any]								=		attention_mask.at[(0, 0)].set(0				)

						lowerCamelCase__ :      int								=		True
						lowerCamelCase__ :      str								=		max_length

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      int								=		model_class(__magic_name__				)

									lowerCamelCase__ :      str								=		model.generate(__magic_name__							,    attention_mask=__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[-1]							,    __magic_name__				)

									lowerCamelCase__ :      List[Any]								=		jit(model.generate				)
									lowerCamelCase__ :      List[Any]								=		jit_generate(__magic_name__							,    attention_mask=__magic_name__				).sequences

									self.assertListEqual(generation_outputs.tolist()							,    jit_generation_outputs.tolist()				)





			def        _snake_case    (self				):
						lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__							,lowerCamelCase__ :      Optional[Any]								=		self._get_input_ids_and_config()

						# pad attention mask on the left
						lowerCamelCase__ :      Union[str, Any]								=		attention_mask.at[(0, 0)].set(0				)

						lowerCamelCase__ :      Tuple								=		2
						lowerCamelCase__ :      List[Any]								=		max_length

						for model_class in self.all_generative_model_classes:
									lowerCamelCase__ :      Optional[Any]								=		model_class(__magic_name__				)

									lowerCamelCase__ :      Union[str, Any]								=		model.generate(__magic_name__							,    attention_mask=__magic_name__				).sequences
									self.assertEqual(generation_outputs.shape[-1]							,    __magic_name__				)

									lowerCamelCase__ :      int								=		jit(model.generate				)
									lowerCamelCase__ :      Any								=		jit_generate(__magic_name__							,    attention_mask=__magic_name__				).sequences

									self.assertListEqual(generation_outputs.tolist()							,    jit_generation_outputs.tolist()				)







@require_flax
class 				__A					( unittest.TestCase      ):





			def        _snake_case    (self				):
						lowerCamelCase__ :      Dict								=		AutoTokenizer.from_pretrained("""hf-internal-testing/tiny-bert"""				)
						lowerCamelCase__ :      Tuple								=		FlaxAutoModelForCausalLM.from_pretrained("""hf-internal-testing/tiny-bert-flax-only"""				)

						lowerCamelCase__ :      Dict								=		"""Hello world"""
						lowerCamelCase__ :      Union[str, Any]								=		tokenizer(__magic_name__							,    return_tensors="""np"""				).input_ids

						# typos are quickly detected (the correct argument is `do_sample`)
						with self.assertRaisesRegex(__magic_name__							,    """do_samples"""				):
									model.generate(__magic_name__							,    do_samples=__magic_name__				)

						# arbitrary arguments that will not be used anywhere are also not accepted
						with self.assertRaisesRegex(__magic_name__							,    """foo"""				):
									lowerCamelCase__ :      Tuple								=		{"""foo""": """bar"""}
									model.generate(__magic_name__							,    **__magic_name__				)



