Initial Commit

FileSystemUtil.h

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+#pragma once
+#include <string>
+#include <functional>
+
+/// Declaration
+/// Set 'skiplevel' to <1 to stop skipping.
+/// Set 'maxlevel' to <1 to ignore max level.
+void FindFileRev(const std::string& dirname,
+                 const int skiplevel,const int maxlevel,
+                 const std::function<void(const std::string&)>& func);

FileSystemUtil_Linux.cpp

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+#include "FileSystemUtil.h"
+
+#ifndef _WIN32
+
+#include <dirent.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <cstdio>
+#include <ctime>
+#include <cstdlib>
+#include <cstring>
+
+void _FindFileRev(const std::string& dirname,
+                 const int skiplevel,const int maxlevel,int nowlevel,
+                 const std::function<void(const std::string&)>& func)
+{
+    DIR* Dir = NULL;
+    struct dirent* file = NULL;
+
+    if ((Dir = opendir(dirname.c_str())) == NULL)
+    {
+        return ;
+    }
+    while ((file = readdir(Dir)) != nullptr)
+    {
+        if (file->d_type == DT_REG)
+        {
+            if(nowlevel>skiplevel) func(dirname + file->d_name);
+        }
+        else if (file->d_type == DT_DIR && strcmp(file->d_name, ".") != 0 && strcmp(file->d_name, "..") != 0)
+        {
+            if(maxlevel<1 || nowlevel<maxlevel)
+            {
+                _FindFileRev(dirname + file->d_name + "/" ,skiplevel,maxlevel,nowlevel+1,func);
+            }
+        }
+    }
+    closedir(Dir);
+}
+
+void FindFileRev(const std::string& dirname,
+                 const int skiplevel,const int maxlevel,
+                 const std::function<void(const std::string&)>& func)
+{
+    if (dirname[dirname.size()-1] != '/')
+    {
+        string curDir=dirname+"/";
+        _FindFileRev(curDir,skiplevel,maxlevel,1,func);
+    }
+    else
+    {
+        _FindFileRev(dirname,skiplevel,maxlevel,1,func);
+    }
+}
+
+#endif // _WIN32

FileSystemUtil_Win.cpp

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+#include "FileSystemUtil.h"
+
+#ifdef _WIN32
+
+#include <windows.h>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <string>
+#include <functional>
+void _FindFileRev(const std::string& dirname,
+                  const int skiplevel,const int maxlevel,int nowlevel,
+                  const std::function<void(const std::string&)>& func)
+{
+    std::string patternString=dirname+"*";
+
+    WIN32_FIND_DATA fnd;
+    HANDLE hand=FindFirstFile(patternString.c_str(),&fnd);
+    if(hand!=INVALID_HANDLE_VALUE)
+    {
+        do
+        {
+            std::string fullname=dirname+fnd.cFileName;
+            if(fnd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+            {
+                if(maxlevel>0 && nowlevel<maxlevel)
+                {
+                    fullname.append("\\");
+                    _FindFileRev(fullname,skiplevel,maxlevel,nowlevel+1,func);
+                }
+            }
+            else
+            {
+                if(nowlevel>skiplevel) func(fullname);
+            }
+        }
+        while(FindNextFile(hand,&fnd));
+        FindClose(hand);
+    }
+}
+void FindFileRev(const std::string& dirname,
+                 const int skiplevel,const int maxlevel,
+                 const std::function<void(const std::string&)>& func)
+{
+    if(dirname[dirname.size()-1]!='\\')
+    {
+        std::string dirnamex=dirname+"\\";
+        _FindFileRev(dirnamex,skiplevel,maxlevel,1,func);
+    }
+    else
+    {
+        _FindFileRev(dirname,skiplevel,maxlevel,1,func);
+    }
+}
+
+#endif // _WIN32

Readme.md

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+# File System Util
+
+Some useful class and functions to operate file system.
+
+All Rights Reserved. Not For Public.
+
+**HC TECH 2017**