#!/usr/bin/python
# -*- coding: UTF-8 -*-
import os, re, datetime


class Find(object):
 def __init__(self, root, input_file):
  """
    --初始化
  """
  self.root = root # 文件树的根
  self.input_files = [] # 待查询的字符串集合
  self.files = [] # 待匹配的文件集合
  self.current = 0 # 正在匹配的文件集合的位置

  f = file(input_file, "r")
  old_content = f.read()
  f.close()
  self.input_files = old_content.split('\n') # 将待匹配字符串保存在数组中

 @staticmethod
 def find_file(self):
  """
  --查找文件，即遍历文件树将查找到的文件放在文件集合中
  :return:
  """
  # python中的walk方法可以查找到所给路径下的所有文件和文件夹，这里只用文件
  for root, dirs, files in os.walk(self.root, topdown=True):
   for name in files:
    self.files.append(os.path.join(root, name))
    #  print(os.path.join(root, name))
    # for name in dirs:
    #  print(os.path.join(root, name))

 @staticmethod
 def walk(self):
  """
  --逐一查找，并将结果存入result.txt文件中
  :param self:
  :return:
  """
  for item1 in self.files:
   Find.traverse_file(self, item1)
  try:
   result = ''
   for item3 in self.input_files:
    result += item3 + '\n'
   f = file("./result_files.txt", "w")
   f.write(result)
   f.close()
  except IOError, msg:
   print "Error:", msg
  else:
   print "OK"

 @staticmethod
 def traverse_file(self, file_path):
  """
  --遍历文件，匹配字符串
  :return:
  """
  f = file(file_path, "r")
  file_content = f.read()
  f.close()
  input_files = []
  for item2 in self.input_files:
   if item2:
    # 正则匹配，不区分大小写
    searchObj = re.search(r'(.*)' + item2 + '.*', file_content, re.M | re.I)
    if searchObj:
     continue
    else:
     input_files.append(item2)
  self.input_files = input_files


if __name__ == "__main__":

 print datetime.datetime.now()
 findObj = Find('F:\\projects', "./input_files.txt")
 findObj.find_file(findObj)
 findObj.walk(findObj)
 print datetime.datetime.now()