click33
97 lines
3.1 KiB
Python
97 lines
3.1 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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冗余 import 扫描脚本
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按 reference.md 规则扫描项目内 Java 文件，输出待移除的冗余 import 列表。
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用法：在项目根目录执行 python scan_redundant_imports.py
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"""
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import os
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import re
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import sys
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def get_simple_name(imp: str) -> str | None:
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"""从 import 行提取简单名（用于类体搜索）"""
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m = re.match(r'import\s+static\s+[\w.]+\.(\w+)\s*;', imp)
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if m:
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return m.group(1)
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m = re.match(r'import\s+(?:static\s+)?([\w.]+)\s*;', imp)
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if m:
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return m.group(1).split('.')[-1]
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return None
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def get_import_full(imp: str) -> str:
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"""提取 import 的完整限定名"""
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m = re.match(r'import\s+(?:static\s+)?([\w.]+)\s*;', imp)
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return m.group(1).strip() if m else ''
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def get_import_package(imp: str) -> str:
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"""提取 import 所在包（用于同包冗余判断）"""
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m = re.match(r'import\s+(?:static\s+)?([\w.]+)\s*;', imp)
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if m:
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parts = m.group(1).split('.')
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return '.'.join(parts[:-1]) if len(parts) > 1 else ''
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return ''
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def find_class_body_start(content: str) -> int:
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"""找到类体起始位置（最后一个 import 之后）"""
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last = 0
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for m in re.finditer(r'import\s+(?:static\s+)?[\w.]+\s*;', content):
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last = m.end()
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return last
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def main() -> None:
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root = sys.argv[1] if len(sys.argv) > 1 else '.'
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skip_dirs = {'target', 'build', '.git', 'node_modules'}
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results = []
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for dirpath, dirnames, filenames in os.walk(root):
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dirnames[:] = [d for d in dirnames if d not in skip_dirs]
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for f in filenames:
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if not f.endswith('.java'):
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continue
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path = os.path.join(dirpath, f).replace('\\', '/')
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try:
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with open(path, 'r', encoding='utf-8', errors='ignore') as fp:
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content = fp.read()
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except OSError:
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continue
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pkg_match = re.search(r'package\s+([\w.]+)\s*;', content)
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file_pkg = pkg_match.group(1) if pkg_match else ''
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imports = re.findall(r'import\s+(?:static\s+)?[\w.]+\s*;', content)
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imports = [i for i in imports if '*;' not in i and '.*' not in i]
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body_start = find_class_body_start(content)
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body = content[body_start:]
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redundant = []
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for imp in imports:
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simple = get_simple_name(imp)
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if not simple:
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continue
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imp_full = get_import_full(imp)
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imp_pkg = get_import_package(imp)
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if imp_pkg and imp_pkg == file_pkg:
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redundant.append(imp_full)
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continue
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if not re.search(r'\b' + re.escape(simple) + r'\b', body):
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redundant.append(imp_full)
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if redundant:
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results.append((path, redundant))
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for path, red in results:
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print(f"{path} | {'; '.join(red)} | {len(red)}")
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print("TOTAL_FILES:" + str(len(results)))
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print("TOTAL_IMPORTS:" + str(sum(len(r[1]) for r in results)))
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if __name__ == '__main__':
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main()
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