refactor: add models_download.py for downloading and configuring MinerU models

mineru/cli/models_download.py

+import json
+import os
+import sys
+import click
+import requests
+
+from mineru.utils.enum_class import ModelPath
+from mineru.utils.models_download_utils import auto_download_and_get_model_root_path
+
+
+def download_json(url):
+    """下载JSON文件"""
+    response = requests.get(url)
+    response.raise_for_status()
+    return response.json()
+
+
+def download_and_modify_json(url, local_filename, modifications):
+    """下载JSON并修改内容"""
+    if os.path.exists(local_filename):
+        data = json.load(open(local_filename))
+        config_version = data.get('config_version', '0.0.0')
+        if config_version < '1.3.0':
+            data = download_json(url)
+    else:
+        data = download_json(url)
+
+    # 修改内容
+    for key, value in modifications.items():
+        if key in data:
+            if isinstance(data[key], dict):
+                # 如果是字典，合并新值
+                data[key].update(value)
+            else:
+                # 否则直接替换
+                data[key] = value
+
+    # 保存修改后的内容
+    with open(local_filename, 'w', encoding='utf-8') as f:
+        json.dump(data, f, ensure_ascii=False, indent=4)
+
+
+def configure_model(model_dir, model_type):
+    """配置模型"""
+    json_url = 'https://gcore.jsdelivr.net/gh/opendatalab/MinerU@master/mineru.template.json'
+    config_file_name = 'mineru.json'
+    home_dir = os.path.expanduser('~')
+    config_file = os.path.join(home_dir, config_file_name)
+
+    json_mods = {
+        'models-dir': {
+            f'{model_type}': model_dir
+        }
+    }
+
+    download_and_modify_json(json_url, config_file, json_mods)
+    print(f'The configuration file has been successfully configured, the path is: {config_file}')
+
+
+@click.command()
+def download_models():
+    """下载MinerU模型文件。
+
+    支持从ModelScope或HuggingFace下载pipeline或VLM模型。
+    """
+    # 交互式输入下载来源
+    source = click.prompt(
+        "Please select the model download source: ",
+        type=click.Choice(['huggingface', 'modelscope']),
+        default='huggingface'
+    )
+
+    os.environ['MINERU_MODEL_SOURCE'] = source
+
+    # 交互式输入模型类型
+    model_type = click.prompt(
+        "Please select the model type to download: ",
+        type=click.Choice(['pipeline', 'vlm']),
+        default='pipeline'
+    )
+
+    click.echo(f"Downloading {model_type} model from {source}...")
+
+    try:
+        download_finish_path = ""
+        if model_type == 'pipeline':
+            for model_path in [ModelPath.doclayout_yolo, ModelPath.yolo_v8_mfd, ModelPath.unimernet_small, ModelPath.pytorch_paddle, ModelPath.layout_reader, ModelPath.slanet_plus]:
+                download_finish_path = auto_download_and_get_model_root_path(model_path, repo_mode=model_type)
+        elif model_type == 'vlm':
+            download_finish_path = auto_download_and_get_model_root_path("/", repo_mode=model_type)
+        click.echo(f"Models downloaded successfully to: {download_finish_path}")
+        configure_model(download_finish_path, model_type)
+    except Exception as e:
+        click.echo(f"Download failed: {str(e)}", err=True)
+        sys.exit(1)
+
+
+if __name__ == '__main__':
+    download_models()