[로또] 김지성 미션 제출합니다. #30

	name: Check No External Libraries

	on: pull_request

	jobs:
	check-no-external-libs:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.9"

	- name: Ensure no external libraries are imported
	run: \|
	python -c "
	import os
	import ast


	allowed_modules = {'sys', 'os', 'math', 'random', 'datetime', 're' 'enum'}
	def is_internal_module(module_name):
	\"\"\" 내부 모듈(`src/` 폴더 내 Python 파일)인지 확인 \"\"\"
	module_path = os.path.join('src', module_name.replace('.', '/') + '.py')
	module_dir = os.path.join('src', module_name.replace('.', '/'))
	return os.path.exists(module_path) or os.path.isdir(module_dir)

	def check_imports(file_path):
	with open(file_path, 'r', encoding='utf-8') as f:
	tree = ast.parse(f.read(), filename=file_path)
	for node in ast.walk(tree):
	if isinstance(node, ast.Import):
	for alias in node.names:
	if alias.name not in allowed_modules and not is_internal_module(alias.name):
	raise SystemExit(f'❌ External library detected: {alias.name} in {file_path}')
	elif isinstance(node, ast.ImportFrom):
	if node.module and node.module not in allowed_modules and not is_internal_module(node.module):
	raise SystemExit(f'❌ External library detected: {node.module} in {file_path}')

	for root, _, files in os.walk('src'):
	for file in files:
	if file.endswith('.py'):
	check_imports(os.path.join(root, file))"

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