👍[Update] model : translation/utils.pyを追加に伴い一部修正

models/translation/utils.py

@@ -0,0 +1,54 @@
+import tempfile
+from zipfile import ZipFile
+from os import path as os_path
+from os import makedirs as os_makedirs
+from requests import get as requests_get, head as requests_head
+from tqdm import tqdm
+from typing import Callable
+
+ctranslate2_weights = {
+    "small": { # M2M-100 418M-parameter model
+        "url": "https://bit.ly/33fM1AO",
+        "directory_name": "m2m100_418m",
+        "tokenizer": "facebook/m2m100_418M"
+    },
+    "large": { # M2M-100 1.2B-parameter model
+        "url": "https://bit.ly/3GYiaed",
+        "directory_name": "m2m100_12b",
+        "tokenizer": "facebook/m2m100_12b"
+    },
+}
+
+def downloadCTranslate2Weight(path, weight_type="small", ctranslate2_weights=ctranslate2_weights, func=None):
+    url = ctranslate2_weights[weight_type]["url"]
+    filename = 'weight.zip'
+    directory_name = 'weight'
+    current_directory = path
+    weight_directory_name = ctranslate2_weights[weight_type]["directory_name"]
+    files = ["model.bin", "sentencepiece.model", "shared_vocabulary.txt"]
+
+    # check already downloaded
+    if all(os_path.exists(os_path.join(current_directory, directory_name, weight_directory_name, file)) for file in files):
+        return
+
+    try:
+        os_makedirs(os_path.join(current_directory, directory_name), exist_ok=True)
+        print(os_path.join(current_directory, directory_name))
+        with tempfile.TemporaryDirectory() as tmp_path:
+            res = requests_get(url, stream=True)
+            file_size = int(res.headers.get('content-length', 0))
+            pbar = tqdm(total=file_size, unit="B", unit_scale=True)
+            total_chunk = 0
+            with open(os_path.join(tmp_path, filename), 'wb') as file:
+                for chunk in res.iter_content(chunk_size=1024):
+                    file.write(chunk)
+                    pbar.update(len(chunk))
+                    if isinstance(func, Callable):
+                        total_chunk += len(chunk)
+                        func(total_chunk/file_size)
+                pbar.close()
+
+            with ZipFile(os_path.join(tmp_path, filename)) as zf:
+                zf.extractall(os_path.join(current_directory, directory_name))
+    except Exception as e:
+            print("error:downloadCTranslate2Weight()", e)