文件夹比较工具

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所属分类:.NET技术
摘要

文件比较平常都是用Beyond Compare,可以说离不开的神器,特别是针对代码比较这块,确实挺好用的。

文件比较平常都是用Beyond Compare,可以说离不开的神器,特别是针对代码比较这块,确实挺好用的。

不过Beyond Compare平常拿它主要是用来做代码比较,用来做一些大批量的二进制文件比较,其实有点不是很方便。

于是造轮子,重新写了一个简单的文件夹比较的小工具。

平常主要是拿来做一些Nuget包的比对,应用包版本的比较。

文件夹比较工具

文件夹比较逻辑,采用迭代比较的方式:

using CgdataBase; using FolderCompare.Models; using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Diagnostics; using System.Linq; using System.Text; using System.Threading.Tasks;  namespace FolderCompare.Helpers {     public static class CompareHelper     {         public static void CompareDirectory(CgDirectoryInfo path1, CgDirectoryInfo path2)         {             if (path1.Children.IsNullOrEmpty())             {                 if (path2.Children.IsNullOrEmpty())                 {                     path1.Result = ECompareResult.匹配;                     path2.Result = ECompareResult.匹配;                 }                 else                 {                     path1.Result = ECompareResult.空;                     path2.Result = ECompareResult.孤立;                     SetCompareResult(path2, ECompareResult.匹配);                 }                  return;             }             if (path2.Children.IsNullOrEmpty())             {                 path1.Result = ECompareResult.孤立;                 path2.Result = ECompareResult.空;                 SetCompareResult(path1, ECompareResult.匹配);                 return;             }              var dirList = new List<string>();             var fileList = new List<string>();              dirList.AddRange(path1.Children.Where(s => s.IsDirectory).Select(s => s.Name));             dirList.AddRange(path2.Children.Where(s => s.IsDirectory).Select(s => s.Name));              fileList.AddRange(path1.Children.Where(s => !s.IsDirectory).Select(s => s.Name));             fileList.AddRange(path2.Children.Where(s => !s.IsDirectory).Select(s => s.Name));              var index = 0;             if (dirList.HadItems())             {                 var items = dirList.Distinct().ToList();                 items.Sort();                  foreach (var item in items)                 {                     var dir1 = path1.Children.OfType<CgDirectoryInfo>().SingleOrDefault(s => s.Name == item);                     if (dir1 == null)                     {                         dir1 = new CgDirectoryInfo();                         dir1.Result = ECompareResult.空;                         path1.Children.Insert(index, dir1);                          var dir2 = path2.Children.OfType<CgDirectoryInfo>().Single(s => s.Name == item);                         dir2.Result = ECompareResult.孤立;                         var old = path2.Children.IndexOf(dir2);                         path2.Children.Move(old, index);                          SetCompareResult(dir2, ECompareResult.匹配);                     }                     else                     {                         var dir2 = path2.Children.OfType<CgDirectoryInfo>().SingleOrDefault(s => s.Name == item);                         if (dir2 == null)                         {                             dir2 = new CgDirectoryInfo();                             dir2.Result = ECompareResult.空;                             path2.Children.Insert(index, dir2);                              dir1.Result = ECompareResult.孤立;                             var old = path1.Children.IndexOf(dir1);                             path1.Children.Move(old, index);                              SetCompareResult(dir1, ECompareResult.匹配);                         }                         else                         {                             CompareDirectory(dir1, dir2);                              var old = path1.Children.IndexOf(dir1);                             path1.Children.Move(old, index);                              old = path2.Children.IndexOf(dir2);                             path2.Children.Move(old, index);                         }                          dir2.Index = index;                     }                      dir1.Index = index;                      index++;                 }             }              if (fileList.HadItems())             {                 var items = fileList.Distinct().ToList();                 items.Sort();                  foreach (var item in items)                 {                     var file1 = path1.Children.OfType<CgFileInfo>().SingleOrDefault(s => s.Name == item);                     if (file1 == null)                     {                         file1 = new CgFileInfo();                         file1.Result = ECompareResult.空;                         path1.Children.Insert(index, file1);                          var file2 = path2.Children.OfType<CgFileInfo>().Single(s => s.Name == item);                         file2.Result = ECompareResult.孤立;                          var old = path2.Children.IndexOf(file2);                         path2.Children.Move(old, index);                     }                     else                     {                         var file2 = path2.Children.OfType<CgFileInfo>().SingleOrDefault(s => s.Name == item);                         if (file2 == null)                         {                             file2 = new CgFileInfo();                             file2.Result = ECompareResult.空;                             path2.Children.Insert(index, file2);                              file1.Result = ECompareResult.孤立;                             var old = path1.Children.IndexOf(file1);                             path1.Children.Move(old, index);                         }                         else                         {                             CompareFile(file1, file2);                              var old = path1.Children.IndexOf(file1);                             path1.Children.Move(old, index);                              old = path2.Children.IndexOf(file2);                             path2.Children.Move(old, index);                         }                          file2.Index = index;                     }                      file1.Index = index;                      index++;                 }             }              path1.Result = GetCompareResult(path1.Children);             path2.Result = GetCompareResult(path2.Children);         }          private static void CompareFile(CgFileSystemInfo info1, CgFileSystemInfo info2)         {             if (info1.Name.IsNullOrEmpty())             {                 info1.Result = ECompareResult.空;                 info2.Result = ECompareResult.孤立;                 return;             }             if (info2.Name.IsNullOrEmpty())             {                 info1.Result = ECompareResult.孤立;                 info2.Result = ECompareResult.空;                 return;             }              if (info1.Length == info2.Length && info1.LastWriteTime == info2.LastWriteTime)             {                 info1.Result = ECompareResult.匹配;                 info2.Result = ECompareResult.匹配;             }             else             {                 if (info1.LastWriteTime > info2.LastWriteTime)                 {                     info1.Result = ECompareResult.不匹配;                     info2.Result = ECompareResult.较旧的;                 }                 else                 {                     info1.Result = ECompareResult.较旧的;                     info2.Result = ECompareResult.不匹配;                 }             }         }          private static void SetCompareResult(CgDirectoryInfo info, ECompareResult result)         {             if (info.Children.HadItems())             {                 foreach (var item in info.Children)                 {                     if (item is CgDirectoryInfo dir)                     {                         dir.Result = result;                         SetCompareResult(dir, result);                     }                     else if (item is CgFileInfo file)                     {                         file.Result = result;                     }                 }             }         }          public static ECompareResult GetCompareResult(ObservableCollection<CgFileSystemInfo> items)         {             if (items.IsNullOrEmpty())                 return ECompareResult.空;              if (items.Any(s => s.Result == ECompareResult.不匹配 || s.Result == ECompareResult.较旧的))                 return ECompareResult.不匹配;              if (items.Any(s => s.Result == ECompareResult.孤立))                 return ECompareResult.孤立;              return ECompareResult.匹配;         }     } }

 

源码:https://gitee.com/wzwyc/FolderCompare