

"""simple docstring"""






import argparse
from typing import Dict

import tensorflow as tf
import torch
from tqdm import tqdm

from transformers import BigBirdPegasusConfig, BigBirdPegasusForConditionalGeneration


_lowerCAmelCase						=		[
    # tf -> hf
    ("""/""", """."""),
    ("""layer_""", """layers."""),
    ("""kernel""", """weight"""),
    ("""beta""", """bias"""),
    ("""gamma""", """weight"""),
    ("""pegasus""", """model"""),
]
_lowerCAmelCase						=		[
    (""".output.dense""", """.fc2"""),
    ("""intermediate.LayerNorm""", """final_layer_norm"""),
    ("""intermediate.dense""", """fc1"""),
]

_lowerCAmelCase						=		(
    INIT_COMMON
    + [
        ("""attention.self.LayerNorm""", """self_attn_layer_norm"""),
        ("""attention.output.dense""", """self_attn.out_proj"""),
        ("""attention.self""", """self_attn"""),
        ("""attention.encdec.LayerNorm""", """encoder_attn_layer_norm"""),
        ("""attention.encdec_output.dense""", """encoder_attn.out_proj"""),
        ("""attention.encdec""", """encoder_attn"""),
        ("""key""", """k_proj"""),
        ("""value""", """v_proj"""),
        ("""query""", """q_proj"""),
        ("""decoder.LayerNorm""", """decoder.layernorm_embedding"""),
    ]
    + END_COMMON
)

_lowerCAmelCase						=		(
    INIT_COMMON
    + [
        ("""embeddings.word_embeddings""", """shared.weight"""),
        ("""embeddings.position_embeddings""", """embed_positions.weight"""),
        ("""attention.self.LayerNorm""", """self_attn_layer_norm"""),
        ("""attention.output.dense""", """self_attn.output"""),
        ("""attention.self""", """self_attn.self"""),
        ("""encoder.LayerNorm""", """encoder.layernorm_embedding"""),
    ]
    + END_COMMON
)

_lowerCAmelCase						=		[
    """encdec/key/bias""",
    """encdec/query/bias""",
    """encdec/value/bias""",
    """self/key/bias""",
    """self/query/bias""",
    """self/value/bias""",
    """encdec_output/dense/bias""",
    """attention/output/dense/bias""",
]

def 		lowerCamelCase__		(					_lowerCamelCase ,   _lowerCamelCase   ):

    '''simple docstring'''



    for tf_name, hf_name in patterns:
        _lowerCAmelCase       :   Optional[Any]  =    k.replace(lowercase__ ,   lowercase__   )
    return k

def 		lowerCamelCase__		(					_lowerCamelCase ,   _lowerCamelCase   ):

    '''simple docstring'''



    _lowerCAmelCase       :   Any  =    BigBirdPegasusConfig(**lowercase__   )
    _lowerCAmelCase       :   int  =    BigBirdPegasusForConditionalGeneration(lowercase__   )
    _lowerCAmelCase       :   Dict  =    torch_model.state_dict()
    _lowerCAmelCase       :   Union[str, Any]  =    {}

    # separating decoder weights
    _lowerCAmelCase       :   str  =    {k: tf_weights[k] for k in tf_weights if k.startswith('pegasus/decoder'   )}
    _lowerCAmelCase       :   Union[str, Any]  =    {k: tf_weights[k] for k in tf_weights if not k.startswith('pegasus/decoder'   )}

    for k, v in tqdm(decoder_weights.items() ,   'tf -> hf conversion'   ):
        _lowerCAmelCase       :   int  =    [k.endswith(lowercase__   ) for ending in KEYS_TO_IGNORE]
        if any(lowercase__   ):
            continue
        _lowerCAmelCase       :   Optional[int]  =    DECODER_PATTERNS
        _lowerCAmelCase       :   Union[str, Any]  =    rename_state_dict_key(lowercase__ ,   lowercase__   )
        if new_k not in state_dict:
            raise ValueError(f"""could not find new key {new_k} in state dict. (converted from {k})"""   )
        if any(True if i in k else False for i in ['dense', 'query', 'key', 'value']   ):
            _lowerCAmelCase       :   str  =    v.T
        _lowerCAmelCase       :   Union[str, Any]  =    torch.from_numpy(lowercase__   )
        assert v.shape == state_dict[new_k].shape, f"""{new_k}, {k}, {v.shape}, {state_dict[new_k].shape}"""

    for k, v in tqdm(remaining_weights.items() ,   'tf -> hf conversion'   ):
        _lowerCAmelCase       :   str  =    [k.endswith(lowercase__   ) for ending in KEYS_TO_IGNORE]
        if any(lowercase__   ):
            continue
        _lowerCAmelCase       :   int  =    REMAINING_PATTERNS
        _lowerCAmelCase       :   List[Any]  =    rename_state_dict_key(lowercase__ ,   lowercase__   )
        if new_k not in state_dict and k != "pegasus/embeddings/position_embeddings":
            raise ValueError(f"""could not find new key {new_k} in state dict. (converted from {k})"""   )
        if any(True if i in k else False for i in ['dense', 'query', 'key', 'value']   ):
            _lowerCAmelCase       :   Optional[Any]  =    v.T
        _lowerCAmelCase       :   Dict  =    torch.from_numpy(lowercase__   )
        if k != "pegasus/embeddings/position_embeddings":
            assert v.shape == state_dict[new_k].shape, f"""{new_k}, {k}, {v.shape}, {state_dict[new_k].shape}"""

    _lowerCAmelCase       :   Tuple  =    mapping['model.embed_positions.weight']
    _lowerCAmelCase       :   str  =    mapping.pop('model.embed_positions.weight'   )
    _lowerCAmelCase,					_lowerCAmelCase       :   Tuple  =    torch_model.load_state_dict(lowercase__ ,   strict=lowercase__   )
    _lowerCAmelCase       :   Any  =    [
        k
        for k in missing
        if k
        not in [
            'final_logits_bias',
            'model.encoder.embed_tokens.weight',
            'model.decoder.embed_tokens.weight',
            'lm_head.weight',
        ]
    ]
    assert unexpected_missing == [], f"""no matches found for the following torch keys {unexpected_missing}"""
    assert extra == [], f"""no matches found for the following tf keys {extra}"""
    return torch_model

def 		lowerCamelCase__		(					_lowerCamelCase   ):

    '''simple docstring'''



    _lowerCAmelCase       :   Optional[int]  =    tf.train.list_variables(lowercase__   )
    _lowerCAmelCase       :   Optional[Any]  =    {}
    _lowerCAmelCase       :   str  =    ['global_step']
    for name, shape in tqdm(lowercase__ ,   desc='converting tf checkpoint to dict'   ):
        _lowerCAmelCase       :   Union[str, Any]  =    any(pat in name for pat in ignore_name   )
        if skip_key:
            continue
        _lowerCAmelCase       :   Optional[Any]  =    tf.train.load_variable(lowercase__ ,   lowercase__   )
        _lowerCAmelCase       :   List[Any]  =    array
    return tf_weights

def 		lowerCamelCase__		(					_lowerCamelCase ,   _lowerCamelCase ,   _lowerCamelCase   ):

    '''simple docstring'''



    _lowerCAmelCase       :   List[Any]  =    get_tf_weights_as_numpy(lowercase__   )
    _lowerCAmelCase       :   Optional[int]  =    convert_bigbird_pegasus(lowercase__ ,   lowercase__   )
    torch_model.save_pretrained(lowercase__   )


if __name__ == "__main__":
 _lowerCAmelCase						=		argparse.ArgumentParser()
 parser.add_argument("""--tf_ckpt_path""", type=str, help="""passed to tf.train.list_variables""")
 parser.add_argument("""--save_dir""", default=None, type=str, help="""Path to the output PyTorch model.""")
 _lowerCAmelCase						=		parser.parse_args()
 _lowerCAmelCase						=		{}
 convert_bigbird_pegasus_ckpt_to_pytorch(args.tf_ckpt_path, args.save_dir, config_update=config_update)








"""simple docstring"""






import json
import os
from typing import Dict, List, Optional, Tuple

from ...tokenization_utils import PreTrainedTokenizer
from ...utils import logging


_lowerCAmelCase						=		logging.get_logger(__name__)


_lowerCAmelCase						=		{
    """vocab_file""": """vocab.json""",
    """tokenizer_config_file""": """tokenizer_config.json""",
    """merges_file""": """merges.txt""",
}

_lowerCAmelCase						=		{
    """vocab_file""": {
        """facebook/s2t-wav2vec2-large-en-de""": (
            """https://huggingface.co/facebook/s2t-wav2vec2-large-en-de/resolve/main/vocab.json"""
        ),
    },
    """tokenizer_config_file""": {
        """facebook/s2t-wav2vec2-large-en-de""": (
            """https://huggingface.co/facebook/s2t-wav2vec2-large-en-de/resolve/main/tokenizer_config.json"""
        ),
    },
    """merges_file""": {
        """facebook/s2t-wav2vec2-large-en-de""": (
            """https://huggingface.co/facebook/s2t-wav2vec2-large-en-de/resolve/main/merges.txt"""
        ),
    },
}

_lowerCAmelCase						=		"""</w>"""
_lowerCAmelCase						=		"""@@ """

def 		lowerCamelCase__		(					_lowerCamelCase   ):

    '''simple docstring'''



    _lowerCAmelCase       :   List[str]  =    set()
    _lowerCAmelCase       :   Dict  =    word[0]
    for char in word[1:]:
        pairs.add((prev_char, char)   )
        _lowerCAmelCase       :   Any  =    char
    return pairs


# Speech2Text2 has no max input length
_lowerCAmelCase						=		{"""facebook/s2t-wav2vec2-large-en-de""": 1_0_2_4}







class 	__UpperCamelCase    (    a__						):
  _UpperCAmelCase          =		VOCAB_FILES_NAMES
  _UpperCAmelCase          =		PRETRAINED_VOCAB_FILES_MAP
  _UpperCAmelCase          =		PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
  _UpperCAmelCase          =		["input_ids", "attention_mask"]

  def __init__(		self    ,_A    ,_A="<s>"    ,_A="<pad>"    ,_A="</s>"    ,_A="<unk>"    ,_A=False    ,_A=None    ,**_A    ,):
      '''simple docstring'''

      super().__init__(
          unk_token=_A    ,bos_token=_A    ,eos_token=_A    ,pad_token=_A    ,do_lower_case=_A    ,**_A    ,)

      _lowerCAmelCase       :   List[Any]  =    do_lower_case

      with open(_A    ,encoding='utf-8'      ) as vocab_handle:
          _lowerCAmelCase       :   Optional[int]  =    json.load(_A      )
      _lowerCAmelCase       :   Tuple  =    {v: k for k, v in self.encoder.items()}

      if merges_file is None:
          logger.info(F"""No merges files provided. {self.__class__.__name__} can only be used for decoding."""      )

          _lowerCAmelCase       :   Optional[Any]  =    None
          _lowerCAmelCase       :   Tuple  =    None
      else:
          with open(_A    ,encoding='utf-8'      ) as merges_handle:
              _lowerCAmelCase       :   Optional[Any]  =    merges_handle.read().split('\n'      )[:-1]

          _lowerCAmelCase       :   List[str]  =    [tuple(merge.split()[:2]      ) for merge in merges]
          _lowerCAmelCase       :   List[Any]  =    dict(zip(_A    ,range(len(_A      )      )      )      )
          _lowerCAmelCase       :   Union[str, Any]  =    {}

  @property
  def __lowerCamelCase		(		self      ):
      '''simple docstring'''

      return len(self.decoder      )

  def __lowerCamelCase		(		self      ):
      '''simple docstring'''

      return dict(self.encoder    ,**self.added_tokens_encoder      )

  def __lowerCamelCase		(		self    ,_A      ):
      '''simple docstring'''

      _lowerCAmelCase       :   str  =    tuple(token[:-1]      ) + (token[-1] + BPE_TOKEN_MERGES,)
      if token in self.cache:
          return self.cache[token]
      _lowerCAmelCase       :   str  =    get_pairs(_A      )

      if not pairs:
          return token

      while True:
          _lowerCAmelCase       :   List[str]  =    min(_A    ,key=lambda _A      : self.bpe_ranks.get(_A    ,float('inf'      )      )      )
          if bigram not in self.bpe_ranks:
              break
          _lowerCAmelCase,					_lowerCAmelCase       :   Optional[int]  =    bigram
          _lowerCAmelCase       :   Union[str, Any]  =    []
          _lowerCAmelCase       :   Dict  =    0
          while i < len(_A      ):
              try:
                  _lowerCAmelCase       :   Dict  =    word.index(_A    ,_A      )
              except ValueError:
                  new_word.extend(word[i:]      )
                  break
              else:
                  new_word.extend(word[i:j]      )
                  _lowerCAmelCase       :   Optional[Any]  =    j

              if word[i] == first and i < len(_A      ) - 1 and word[i + 1] == second:
                  new_word.append(first + second      )
                  i += 2
              else:
                  new_word.append(word[i]      )
                  i += 1
          _lowerCAmelCase       :   Optional[Any]  =    tuple(_A      )
          _lowerCAmelCase       :   List[str]  =    new_word
          if len(_A      ) == 1:
              break
          else:
              _lowerCAmelCase       :   List[str]  =    get_pairs(_A      )
      _lowerCAmelCase       :   Any  =    ' '.join(_A      )
      if word == "\n  " + BPE_TOKEN_MERGES:
          _lowerCAmelCase       :   str  =    '\n' + BPE_TOKEN_MERGES

      if word.endswith(_A      ):
          _lowerCAmelCase       :   Dict  =    word.replace(_A    ,''      )

      _lowerCAmelCase       :   str  =    word.replace(' '    ,_A      )
      _lowerCAmelCase       :   str  =    word
      return word

  def __lowerCamelCase		(		self    ,_A      ):
      '''simple docstring'''

      if self.bpe_ranks is None:
          raise ValueError(
              'This tokenizer was instantiated without a `merges.txt` file, so'
              ' that it can only be used for decoding, not for encoding.'
              'Make sure to provide `merges.txt` file at instantiation to enable '
              'encoding.'      )

      if self.do_lower_case:
          _lowerCAmelCase       :   Optional[Any]  =    text.lower()

      _lowerCAmelCase       :   Tuple  =    text.split()

      _lowerCAmelCase       :   Union[str, Any]  =    []
      for token in text:
          if token:
              split_tokens.extend(list(self.bpe(_A      ).split(' '      )      )      )

      return split_tokens

  def __lowerCamelCase		(		self    ,_A      ):
      '''simple docstring'''

      return self.encoder.get(_A    ,self.encoder.get(self.unk_token      )      )

  def __lowerCamelCase		(		self    ,_A      ):
      '''simple docstring'''

      _lowerCAmelCase       :   int  =    self.decoder.get(_A    ,self.unk_token      )
      return result

  def __lowerCamelCase		(		self    ,_A      ):
      '''simple docstring'''

      _lowerCAmelCase       :   Optional[Any]  =    ' '.join(_A      )

      # make sure @@ tokens are concatenated
      _lowerCAmelCase       :   int  =    ''.join(string.split(_A      )      )

      return string







  def __lowerCamelCase		(		self    ,_A    ,_A = None      ):
      '''simple docstring'''

      if not os.path.isdir(_A      ):
          logger.error(F"""Vocabulary path ({save_directory}) should be a directory"""      )
          return
      _lowerCAmelCase       :   List[Any]  =    os.path.join(
          _A    ,(filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file']      )
      _lowerCAmelCase       :   str  =    os.path.join(
          _A    ,(filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['merges_file']      )

      with open(_A    ,'w'    ,encoding='utf-8'      ) as f:
          f.write(json.dumps(self.encoder    ,indent=2    ,sort_keys=_A    ,ensure_ascii=_A      ) + '\n'      )

      _lowerCAmelCase       :   str  =    0
      if self.bpe_ranks is None:
          return (vocab_file,)

      with open(_A    ,'w'    ,encoding='utf-8'      ) as writer:
          for bpe_tokens, token_index in sorted(self.bpe_ranks.items()    ,key=lambda _A      : kv[1]      ):
              if index != token_index:
                  logger.warning(
                      F"""Saving vocabulary to {merges_file}: BPE merge indices are not consecutive."""
                      ' Please check that the tokenizer is not corrupted!'      )
                  _lowerCAmelCase       :   Dict  =    token_index
              writer.write(' '.join(_A      ) + '\n'      )
              index += 1

      return (vocab_file, merges_file)





