Add new CLI command for file name extraction and hash generation

- Implemented `get_filenames` command in `batch_extractor.py` to extract file names from a specified directory and generate a dated hash for each file.
- Updated README.md with instructions for using the new command.
- Enhanced PDF generation in `build_pdf.py` by modifying file naming conventions to include article and size.
- Added example PowerShell script for batch processing tasks.
- Introduced new example Excel file for user reference.

batch_extractor.py

@@ -6,6 +6,23 @@ from read_image import read_datamatrix_zxing, extract_barcodes_from_pdf
 from pathlib import Path
 import click
 import render_eps
+import hashlib
+import random
+from datetime import datetime
+
+def get_dated_hash(text: str) -> str:
+    """
+    Генерирует хэш с префиксом даты в формате ГГ_ММ_ДД.
+    Пример вывода: 26_02_21_d6f7a6b2c1
+    """
+    # 1. Получаем текущую дату в формате ГГ_ММ_ДД (например, 26_02_21)
+    date_prefix = datetime.now().strftime("%y_%m_%d")
+    text = f"{text}_{random.randint(0,100000000)}"
+    # 2. Генерируем хэш-часть (SHA-256, 10 символов)
+    hash_part = hashlib.sha256(text.encode()).hexdigest()[:10]
+    
+    # 3. Соединяем через нижнее подчеркивание
+    return f"{date_prefix}_{hash_part}"
 
 def extract_eps_from_zip(zip_path: str) -> list:
     """
@@ -124,5 +141,15 @@ def from_pdf(input_pdf: Path, output_xlsx: Path):
     except Exception as e:
         click.secho(f"Ошибка при обработке PDF: {e}", fg="red")
 
+@cli.command(help="Подготавливает excel с именами файлов в директории")
+@click.argument('input_dir', type=click.Path(exists=True, file_okay=False, dir_okay=True, path_type=Path))
+@click.argument('output_xlsx', type=click.Path(dir_okay=False, writable=True, path_type=Path))
+def get_filenames(input_dir: Path, output_xlsx: Path):
+    # Используем .glob('*') или .iterdir()
+    filenames = [f.name for f in input_dir.iterdir() if f.is_file()]
+    filenames_with_hashes = [(get_dated_hash(f), f) for f in filenames]
+    save_to_excel(filenames_with_hashes, str(output_xlsx))
+
+
 if __name__ == "__main__":
     cli()