Python实现比较两个文件夹中代码变化的方法

本文实例讲述了Python实现比较两个文件夹中代码变化的方法。分享给大家供大家参考。具体如下：

这里将修改代码后的目录与原始目录做对比，罗列出新增的代码文件，以及修改过的代码文件

# -*- coding: utf-8 -*-
import os;
folderA = "F:ProjectsFreeImageV3_14_1".lower();
folderB = u"E:Software图像解码库FreeImage3141FreeImage".lower();
filePathsA = {};
filePathsB = {};
for root,dirs,files in os.walk(folderA):
  for fileName in files:
    filePathsA[(root + "" + fileName).lower()] = 1;
for root,files in os.walk(folderB):
  for fileName in files:
    filePathsB[(root + "" + fileName).lower()] = 1;
# 在filePathsA中，找到所有和filePathsB中不一致的文件的路径    
modifiedFilePath = [];
addedFilePath = [];
for filePathA in filePathsA:
  folderALen = len(folderA);
  filePathB = folderB + filePathA[folderALen:]; 
  idx = filePathA.rfind(".");
  if idx == -1:
    continue;
  ext = filePathA[idx + 1:];
  ext = ext.lower();
  if ext != "c" and ext != "h" and ext != "cpp" and ext != "cxx":
    continue;
  if filePathB not in filePathsB:
    addedFilePath.append(filePathA);
    continue;
  text_file = open(filePathA,"r");
  textA = text_file.read();
  text_file.close();
  text_file = open(filePathB,"r");
  textB = text_file.read();
  text_file.close();
  if textA != textB:   
    modifiedFilePath.append(filePathA);
output = open('res.txt','w');
output.write("added files:n");
for filePath in addedFilePath:
  output.write(filePath + "n");
output.write("modified files:n");
for filePath in modifiedFilePath:
  output.write(filePath + "n");
output.close();

希望本文所述对大家的Python程序设计有所帮助。

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