Utilities

Sample code for basic directory & file manipulation.

Download fsutils.zip

Synopsis:

fsutils.cpp

fsutils.h

fsutils_test.cpp

fsutils.cpp Synopsis

#include "fsutils.h" #define WIN32_LEAN_AND_MEAN #include <windows.h> static DWORD cFileAttribute = FILE_ATTRIBUTE_NORMAL | FILE_ATTRIBUTE_ARCHIVE; static DWORD cDirAttribute = FILE_ATTRIBUTE_DIRECTORY; class FileFinder { public: bool first(const string& path) { string fspec = path + "\\*.*"; h = ::FindFirstFile(fspec.c_str(), &fdata); return h != INVALID_HANDLE_VALUE; } bool next() { return ::FindNextFile(h, &fdata) == TRUE; } string getName() { return fdata.cFileName; } bool isDotFiles() { return getName() == "." || getName() == ".."; } void close() { ::FindClose(h); } bool isDir() { return (fdata.dwFileAttributes & cDirAttribute) != 0; } bool isFile() { return (fdata.dwFileAttributes & cFileAttribute) != 0; } private: WIN32_FIND_DATA fdata; HANDLE h; } ; void FSUtils::CreateEmptyFile(const string& path) { HANDLE h = ::CreateFile(path.c_str(), GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, CREATE_NEW, cFileAttribute, 0); ::CloseHandle(h); } void FSUtils::DelFile(const string& path) { ::DeleteFile(path.c_str()); } void FSUtils::CreateDir(const string& path) { ::CreateDirectory(path.c_str(), 0); } void FSUtils::DelDirTree(const string& path) { FileFinder finder; if (!finder.first(path)) return; do { if (finder.isDotFiles()) continue; if (finder.isFile()) DelFile(path + "\\" + finder.getName()); else if (finder.isDir()) DelDirTree(path + "\\" + finder.getName()); } while(finder.next()); finder.close(); ::RemoveDirectory(path.c_str()); } bool FSUtils::DirExists(const string& path) { return EntityExists(path, cDirAttribute); } bool FSUtils::FileExists(const string& path) { return EntityExists(path, cFileAttribute); } bool FSUtils::EntityExists(const string& path, unsigned long typeflag) { DWORD res = ::GetFileAttributes(path.c_str()); if (res == 0xFFFFFFFF) return false; if (res & typeflag) return true; return false; }

fsutils.h Synopsis

#pragma once #include <string> using std::string; class FSUtils { public: void CreateEmptyFile(const string& path); void DelFile(const string& path); void CreateDir(const string& path); void DelDirTree(const string& path); bool DirExists(const string& path); bool FileExists(const string& path); private: bool EntityExists(const string& path, unsigned long typeflag); } ;

fsutils_test.cpp Synopsis

#include "utx.h" #include "FSUtils.h" static const string testpath = "d:\\projects\\test\\fsutils"; TEST(fsUtils_dirs) { FSUtils fsu; fsu.DelDirTree(testpath); utxBoolAssert(!fsu.DirExists(testpath)); fsu.CreateDir(testpath); utxBoolAssert(fsu.DirExists(testpath)); fsu.DelDirTree(testpath); utxBoolAssert(!fsu.DirExists(testpath)); } TEST(fsUtils_subdirs) { FSUtils fsu; fsu.DelDirTree(testpath); utxBoolAssert(!fsu.DirExists(testpath)); string sub1 = testpath + "\\sub1"; string sub2 = testpath + "\\sub2"; fsu.CreateDir(testpath); fsu.CreateDir(sub1); fsu.CreateDir(sub2); utxBoolAssert(fsu.DirExists(sub1)); utxBoolAssert(fsu.DirExists(sub2)); fsu.DelDirTree(testpath); utxBoolAssert(!fsu.DirExists(testpath)); } TEST(fsUtils_files) { FSUtils fsu; fsu.DelDirTree(testpath); fsu.CreateDir(testpath); utxBoolAssert(fsu.DirExists(testpath)); string filepath = testpath + "\\" + "test1.txt"; fsu.CreateEmptyFile(filepath); utxBoolAssert(fsu.FileExists(filepath)); fsu.DelFile(filepath); utxBoolAssert(!fsu.FileExists(filepath)); fsu.DelDirTree(testpath); utxBoolAssert(!fsu.DirExists(testpath)); utxBoolAssert(!fsu.FileExists(filepath)); } TEST(fsUtils_dupDelDirTree) { FSUtils fsu; fsu.DelDirTree(testpath); fsu.DelDirTree(testpath); utxBoolAssert(!fsu.DirExists(testpath)); } TEST(fsUtils_dupCreateDir) { FSUtils fsu; fsu.DelDirTree(testpath); utxBoolAssert(!fsu.DirExists(testpath)); fsu.CreateDir(testpath); utxBoolAssert(fsu.DirExists(testpath)); fsu.CreateDir(testpath); utxBoolAssert(fsu.DirExists(testpath)); } TEST(fsUtils_dupCreateFile) { FSUtils fsu; fsu.DelDirTree(testpath); fsu.CreateDir(testpath); utxBoolAssert(fsu.DirExists(testpath)); string filepath = testpath + "\\" + "test2.txt"; fsu.CreateEmptyFile(filepath); utxBoolAssert(fsu.FileExists(filepath)); fsu.CreateEmptyFile(filepath); utxBoolAssert(fsu.FileExists(filepath)); } TEST(fsUtils_dupDelFile) { FSUtils fsu; fsu.DelDirTree(testpath); fsu.CreateDir(testpath); utxBoolAssert(fsu.DirExists(testpath)); string filepath = testpath + "\\" + "test3.txt"; fsu.CreateEmptyFile(filepath); utxBoolAssert(fsu.FileExists(filepath)); fsu.DelFile(filepath); utxBoolAssert(!fsu.FileExists(filepath)); fsu.DelFile(filepath); utxBoolAssert(!fsu.FileExists(filepath)); }