[Bug] fairseq fix missing dataset, model var initialization

[shoaib42]

Describe the bug

There are uninitialized variables that cause issues when loading the model. I hastily opened a PR and it got auto closed. #3471 . All details are in the PR

To Reproduce

import torch
from TTS.api import TTS

# Get device
device = "cuda" if torch.cuda.is_available() else "cpu"
api = TTS("tts_models/pol/fairseq/vits")
api.tts_with_vc_to_file(
    "Dzień dobry",
    speaker_wav="speech.wav",
    file_path="output.wav"
)

You'll get this error

Traceback (most recent call last):
  File "/home/shoaib/temp.py", line 6, in <module>
    api = TTS("tts_models/pol/fairseq/vits")
  File "/home/shoaib/.local/lib/python3.10/site-packages/TTS/api.py", line 74, in __init__
    self.load_tts_model_by_name(model_name, gpu)
  File "/home/shoaib/.local/lib/python3.10/site-packages/TTS/api.py", line 171, in load_tts_model_by_name
    model_path, config_path, vocoder_path, vocoder_config_path, model_dir = self.download_model_by_name(
  File "/home/shoaib/.local/lib/python3.10/site-packages/TTS/api.py", line 129, in download_model_by_name
    model_path, config_path, model_item = self.manager.download_model(model_name)
  File "/home/shoaib/.local/lib/python3.10/site-packages/TTS/utils/manage.py", line 385, in download_model
    model_item, model_full_name, model, md5sum = self._set_model_item(model_name)
  File "/home/shoaib/.local/lib/python3.10/site-packages/TTS/utils/manage.py", line 304, in _set_model_item
    model_full_name = f"{model_type}--{lang}--{dataset}--{model}"
UnboundLocalError: local variable 'dataset' referenced before assignment

Expected behavior

No response

Logs

No response

Environment

{
    "CUDA": {
        "GPU": [],
        "available": false,
        "version": "12.1"
    },
    "Packages": {
        "PyTorch_debug": false,
        "PyTorch_version": "2.1.2+cu121",
        "TTS": "0.22.0",
        "numpy": "1.26.3"
    },
    "System": {
        "OS": "Linux",
        "architecture": [
            "64bit",
            "ELF"
        ],
        "processor": "x86_64",
        "python": "3.10.12",
        "version": "#15~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Jan 12 18:54:30 UTC 2"
    }
}

Additional context

No response

[eginhard]

This is fixed in our fork: https://github.com/idiap/coqui-ai-TTS

[shoaib42]

Thanks, seems like a duplicate and the newer one got merged! Closing issue!