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Update download-model.py (Allow single file download) (#3732)

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Alberto Ferrer 2023-08-29 19:57:58 -06:00 committed by GitHub
parent dac5f4b912
commit f63dd83631
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1 changed files with 24 additions and 12 deletions
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download-model.py
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@ -47,7 +47,7 @@ class ModelDownloader:
return model, branch return model, branch
def get_download_links_from_huggingface(self, model, branch, text_only=False): def get_download_links_from_huggingface(self, model, branch, text_only=False, specific_file=None):
base = "https://huggingface.co" base = "https://huggingface.co"
page = f"/api/models/{model}/tree/{branch}" page = f"/api/models/{model}/tree/{branch}"
cursor = b"" cursor = b""
@ -73,6 +73,9 @@ class ModelDownloader:
for i in range(len(dict)): for i in range(len(dict)):
fname = dict[i]['path'] fname = dict[i]['path']
if specific_file is not None and fname != specific_file:
continue
if not is_lora and fname.endswith(('adapter_config.json', 'adapter_model.bin')): if not is_lora and fname.endswith(('adapter_config.json', 'adapter_model.bin')):
is_lora = True is_lora = True
@ -126,12 +129,16 @@ class ModelDownloader:
if classifications[i] == 'ggml': if classifications[i] == 'ggml':
links.pop(i) links.pop(i)
return links, sha256, is_lora return links, sha256, is_lora, ((has_ggml or has_gguf) and specific_file is not None)
def get_output_folder(self, model, branch, is_lora, base_folder=None): def get_output_folder(self, model, branch, is_lora, is_llamacpp=False, base_folder=None):
if base_folder is None: if base_folder is None:
base_folder = 'models' if not is_lora else 'loras' base_folder = 'models' if not is_lora else 'loras'
# If the model is of type GGUF or GGML, save directly in the base_folder
if is_llamacpp:
return Path(base_folder)
output_folder = f"{'_'.join(model.split('/')[-2:])}" output_folder = f"{'_'.join(model.split('/')[-2:])}"
if branch != 'main': if branch != 'main':
output_folder += f'_{branch}' output_folder += f'_{branch}'
@ -173,7 +180,7 @@ class ModelDownloader:
def start_download_threads(self, file_list, output_folder, start_from_scratch=False, threads=1): def start_download_threads(self, file_list, output_folder, start_from_scratch=False, threads=1):
thread_map(lambda url: self.get_single_file(url, output_folder, start_from_scratch=start_from_scratch), file_list, max_workers=threads, disable=True) thread_map(lambda url: self.get_single_file(url, output_folder, start_from_scratch=start_from_scratch), file_list, max_workers=threads, disable=True)
def download_model_files(self, model, branch, links, sha256, output_folder, progress_bar=None, start_from_scratch=False, threads=1): def download_model_files(self, model, branch, links, sha256, output_folder, progress_bar=None, start_from_scratch=False, threads=1, specific_file=None):
self.progress_bar = progress_bar self.progress_bar = progress_bar
# Creating the folder and writing the metadata # Creating the folder and writing the metadata
@ -189,8 +196,11 @@ class ModelDownloader:
metadata += '\n' metadata += '\n'
(output_folder / 'huggingface-metadata.txt').write_text(metadata) (output_folder / 'huggingface-metadata.txt').write_text(metadata)
# Downloading the files if specific_file:
print(f"Downloading the model to {output_folder}") print(f"Downloading {specific_file} to {output_folder}")
else:
print(f"Downloading the model to {output_folder}")
self.start_download_threads(links, output_folder, start_from_scratch=start_from_scratch, threads=threads) self.start_download_threads(links, output_folder, start_from_scratch=start_from_scratch, threads=threads)
def check_model_files(self, model, branch, links, sha256, output_folder): def check_model_files(self, model, branch, links, sha256, output_folder):
@ -226,6 +236,7 @@ if __name__ == '__main__':
parser.add_argument('--branch', type=str, default='main', help='Name of the Git branch to download from.') parser.add_argument('--branch', type=str, default='main', help='Name of the Git branch to download from.')
parser.add_argument('--threads', type=int, default=1, help='Number of files to download simultaneously.') parser.add_argument('--threads', type=int, default=1, help='Number of files to download simultaneously.')
parser.add_argument('--text-only', action='store_true', help='Only download text files (txt/json).') parser.add_argument('--text-only', action='store_true', help='Only download text files (txt/json).')
parser.add_argument('--specific-file', type=str, default=None, help='Name of the specific file to download (if not provided, downloads all).')
parser.add_argument('--output', type=str, default=None, help='The folder where the model should be saved.') parser.add_argument('--output', type=str, default=None, help='The folder where the model should be saved.')
parser.add_argument('--clean', action='store_true', help='Does not resume the previous download.') parser.add_argument('--clean', action='store_true', help='Does not resume the previous download.')
parser.add_argument('--check', action='store_true', help='Validates the checksums of model files.') parser.add_argument('--check', action='store_true', help='Validates the checksums of model files.')
@ -234,28 +245,29 @@ if __name__ == '__main__':
branch = args.branch branch = args.branch
model = args.MODEL model = args.MODEL
specific_file = args.specific_file
if model is None: if model is None:
print("Error: Please specify the model you'd like to download (e.g. 'python download-model.py facebook/opt-1.3b').") print("Error: Please specify the model you'd like to download (e.g. 'python download-model.py facebook/opt-1.3b').")
sys.exit() sys.exit()
downloader = ModelDownloader(max_retries=args.max_retries) downloader = ModelDownloader(max_retries=args.max_retries)
# Cleaning up the model/branch names # Clean up the model/branch names
try: try:
model, branch = downloader.sanitize_model_and_branch_names(model, branch) model, branch = downloader.sanitize_model_and_branch_names(model, branch)
except ValueError as err_branch: except ValueError as err_branch:
print(f"Error: {err_branch}") print(f"Error: {err_branch}")
sys.exit() sys.exit()
# Getting the download links from Hugging Face # Get the download links from Hugging Face
links, sha256, is_lora = downloader.get_download_links_from_huggingface(model, branch, text_only=args.text_only) links, sha256, is_lora, is_llamacpp = downloader.get_download_links_from_huggingface(model, branch, text_only=args.text_only, specific_file=specific_file)
# Getting the output folder # Get the output folder
output_folder = downloader.get_output_folder(model, branch, is_lora, base_folder=args.output) output_folder = downloader.get_output_folder(model, branch, is_lora, is_llamacpp=is_llamacpp, base_folder=args.output)
if args.check: if args.check:
# Check previously downloaded files # Check previously downloaded files
downloader.check_model_files(model, branch, links, sha256, output_folder) downloader.check_model_files(model, branch, links, sha256, output_folder)
else: else:
# Download files # Download files
downloader.download_model_files(model, branch, links, sha256, output_folder, threads=args.threads) downloader.download_model_files(model, branch, links, sha256, output_folder, specific_file=specific_file, threads=args.threads)