Claude Code 命令行工具开发实战：用 AI 快速构建专业 CLI 工具

import click
from pathlib import Path
import re

@click.command()
@click.argument('directory', type=click.Path(exists=True))
@click.option('--pattern', required=True, help='正则匹配模式')
@click.option('--with', 'replacement', required=True, help='替换为')
@click.option('--dry-run', is_flag=True, help='预览模式，不实际修改')
@click.option('--recursive', is_flag=True, help='递归处理子目录')
def replace(directory, pattern, replacement, dry_run, recursive):
    # 批量重命名文件
    path = Path(directory)
    glob_pattern = '**/*' if recursive else '*'
    files = list(path.glob(glob_pattern))

    renames = [
        (f, f.parent / re.sub(pattern, replacement, f.name))
        for f in files
        if re.sub(pattern, replacement, f.name) != f.name
    ]

    if not renames:
        click.echo('没有匹配的文件')
        return

    click.echo(f'将重命名 {len(renames)} 个文件：')
    for old, new in renames:
        click.echo(f'  {old.name} -> ' + click.style(new.name, fg='green'))

    if dry_run:
        click.echo(click.style('[预览模式] 未实际修改', fg='yellow'))
        return

    if click.confirm('确认执行？'):
        for old, new in renames:
            old.rename(new)
        click.echo(click.style(f'成功重命名 {len(renames)} 个文件', fg='green'))