automate-boring-stuff/exercises/ex10/ex10c.py

51 lines
1.5 KiB
Python

"""
Project: Filling in the Gaps
Page 248
"""
import re
import sys
import argparse
from pathlib import Path
parser = argparse.ArgumentParser(description="Renumeración de archivos")
parser.add_argument("-p", "--pattern", type=str, default="*.*")
parser.add_argument("-i", "--input", type=Path, default=Path.cwd())
parser.add_argument("--add-gap", type=int, default=0)
args = parser.parse_args()
files = []
if not args.input.exists():
print("ERROR: el input no existe")
sys.exit(1)
for path in list(args.input.glob(args.pattern)):
try:
index = int(re.sub(r"^\D+", "", path.stem))
except Exception:
index = 0
files.append({"index": index, "path": path})
if len(files) == 0:
print(f"No se encontraron archivo con el patrón '{args.pattern}'")
sys.exit()
files = sorted(files, key=lambda f: f["index"])
biggest = str(files[-1]["index"])
curr_index = 1
for file in files:
if args.add_gap == curr_index:
curr_index += 1
num = str(curr_index)
zeros = "0" * (len(biggest) - len(num))
index = f"{zeros}{num}"
curr_index += 1
if re.search(r"\d+", file["path"].stem):
parts = re.split(r"\d+", file["path"].stem)
file_name = parts[0] + index + "".join(parts[1:])
else:
file_name = file["path"].stem + index
new_path = file["path"].parent / f"{file_name}{file['path'].suffix}"
print(f"{file['path']} => {new_path}")
# file["path"].rename(new_path) # PELIGRO: renombrará el archivo