Update damt.py

damt.py

@@ -1,7 +1,11 @@
 # coding=utf-8
 """Multi-domain German-English parallel dataset for Domain Adapted Machine Translation."""
 
+from pathlib import Path
+
 import datasets
+import gdown
+
 
 _CITATION = """\
 @inproceedings{koehn-knowles-2017-six,
@@ -86,19 +90,30 @@ class DAMT(datasets.GeneratorBasedBuilder):
         def _get_drive_url(url):
             return f"https://drive.google.com/uc?id={url.split('/')[5]}"
 
-        dl_dir = dl_manager.download_and_extract(_get_drive_url(_URL))
+        cache_dir = dl_manager.download_config.cache_dir
+        assert Path(cache_dir).is_dir()
+
+        output = Path(cache_dir) / "multi_domain_new_split.zip"
+        if not output.exists():
+            dl_dir = gdown.download(_get_drive_url(_URL), output.as_posix(), quiet=True)
+        else:
+            dl_dir = output.as_posix()
+
+        ex_dir = dl_manager.extract(dl_dir)
+        assert Path(ex_dir).is_dir(), ex_dir
+
         files = {
             "train": {
-                "en_file": f"{dl_dir}/{domain}/train.en",
-                "de_file": f"{dl_dir}/{domain}/train.de",
+                "en_file": f"{ex_dir}/{domain}/train.en",
+                "de_file": f"{ex_dir}/{domain}/train.de",
             },
             "validation": {
-                "en_file": f"{dl_dir}/{domain}/dev.en",
-                "de_file": f"{dl_dir}/{domain}/dev.de",
+                "en_file": f"{ex_dir}/{domain}/dev.en",
+                "de_file": f"{ex_dir}/{domain}/dev.de",
             },
             "test": {
-                "en_file": f"{dl_dir}/{domain}/test.en",
-                "de_file": f"{dl_dir}/{domain}/test.de",
+                "en_file": f"{ex_dir}/{domain}/test.en",
+                "de_file": f"{ex_dir}/{domain}/test.de",
             },
         }