refactor(dataset): 重构数据集处理逻辑

chinese-c4.py

@@ -1,28 +1,7 @@
-from datasets import load_dataset
-import json
-import os
+from utils import process_dataset
 
 if __name__ == "__main__":
-    dataset_dict = load_dataset("shjwudp/chinese-c4")
-    train_dataset = dataset_dict["train"]
-
-    chunk_size = 1000000
-    total_samples = len(train_dataset)
-    num_chunks = (total_samples // chunk_size) + 1
-    script_dir = os.path.dirname(os.path.abspath(__file__))
-    output_dir = os.path(script_dir, "dataset", "chinese-c4")
-    os.makedirs(output_dir, exist_ok=True)
-
-    for i in range(num_chunks):
-        start_idx = i * chunk_size
-        end_idx = min((i + 1) * chunk_size, total_samples)
-        chunk = train_dataset.select(range(start_idx, end_idx))
-
-        output_path = f"{output_dir}/chinese-c4_text_chunk_{i}.jsonl"
-        with open(output_path, "w", encoding="utf-8") as f:
-            for example in chunk:
-                # 每行写入一个 {"text": "xxx"} 对象
-                json_line = {"text": example["text"]}
-                f.write(json.dumps(json_line, ensure_ascii=False) + "\n")
-
-        print(f"Saved text chunk {i} to {output_path}")
+    process_dataset(
+        dataset_name="shjwudp/chinese-c4",
+        output_subdir="chinese-c4"
+    )