# -*- coding: utf-8 -*-
"""票 04：全仓库 .java BOM 扫描（AGENTS.md 纪律：批量编辑后、mvn compile 前）。"""
import os, sys, io
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')

root = r'e:\code\crm-backend-matt'
bad, scanned = [], 0
for dirpath, dirnames, filenames in os.walk(root):
    # 跳过 target / .git 等非源码目录
    dirnames[:] = [d for d in dirnames if d not in ('target', '.git', 'node_modules', '.qoder')]
    for fn in filenames:
        if fn.endswith('.java'):
            scanned += 1
            p = os.path.join(dirpath, fn)
            with open(p, 'rb') as f:
                head = f.read(3)
            if head == b'\xef\xbb\xbf':
                bad.append(p)

print('scanned %d java files' % scanned)
if bad:
    print('BOM FOUND %d:' % len(bad))
    for p in bad:
        print('  ' + p)
else:
    print('no BOM - clean')