Initial files

src/filesys.cpp

@@ -0,0 +1,205 @@
+#include "filesys.h"
+#include <iostream>
+
+namespace fs
+{
+
+#ifdef _WIN32
+
+#define _WIN32_WINNT 0x0501
+#include <Windows.h>
+#include <stdio.h>
+#include <malloc.h>
+#include <tchar.h> 
+#include <wchar.h> 
+#include <stdio.h>
+
+#define BUFSIZE MAX_PATH
+
+std::vector<DirListNode> GetDirListing(std::string pathstring)
+{
+	std::vector<DirListNode> listing;
+
+	WIN32_FIND_DATA FindFileData;
+	HANDLE hFind = INVALID_HANDLE_VALUE;
+	DWORD dwError;
+	LPTSTR DirSpec;
+	INT retval;
+
+	DirSpec = (LPTSTR) malloc (BUFSIZE);
+
+	if( DirSpec == NULL )
+	{
+	  printf( "Insufficient memory available\n" );
+	  retval = 1;
+	  goto Cleanup;
+	}
+
+	// Check that the input is not larger than allowed.
+	if (pathstring.size() > (BUFSIZE - 2))
+	{
+	  _tprintf(TEXT("Input directory is too large.\n"));
+	  retval = 3;
+	  goto Cleanup;
+	}
+
+	//_tprintf (TEXT("Target directory is %s.\n"), pathstring.c_str());
+
+	sprintf(DirSpec, "%s", (pathstring + "\\*").c_str());
+
+	// Find the first file in the directory.
+	hFind = FindFirstFile(DirSpec, &FindFileData);
+
+	if (hFind == INVALID_HANDLE_VALUE) 
+	{
+	  _tprintf (TEXT("Invalid file handle. Error is %u.\n"), 
+				GetLastError());
+	  retval = (-1);
+	} 
+	else 
+	{
+		DirListNode node;
+		node.name = FindFileData.cFileName;
+		node.dir = FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
+		listing.push_back(node);
+
+		// List all the other files in the directory.
+		while (FindNextFile(hFind, &FindFileData) != 0) 
+		{
+			DirListNode node;
+			node.name = FindFileData.cFileName;
+			node.dir = FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
+			listing.push_back(node);
+		}
+
+		dwError = GetLastError();
+		FindClose(hFind);
+		if (dwError != ERROR_NO_MORE_FILES) 
+		{
+		 _tprintf (TEXT("FindNextFile error. Error is %u.\n"), 
+				   dwError);
+		retval = (-1);
+		goto Cleanup;
+		}
+	}
+	retval  = 0;
+
+Cleanup:
+	free(DirSpec);
+
+	if(retval != 0) listing.clear();
+
+	//for(unsigned int i=0; i<listing.size(); i++){
+	//	std::cout<<listing[i].name<<(listing[i].dir?" (dir)":" (file)")<<std::endl;
+	//}
+	
+	return listing;
+}
+
+bool CreateDir(std::string path)
+{
+	bool r = CreateDirectory(path.c_str(), NULL);
+	if(r == true)
+		return true;
+	if(GetLastError() == ERROR_ALREADY_EXISTS)
+		return true;
+	return false;
+}
+
+bool PathExists(std::string path)
+{
+	return (GetFileAttributes(path.c_str()) != INVALID_FILE_ATTRIBUTES);
+}
+
+#else
+
+#ifdef linux
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <errno.h>
+#include <sys/stat.h>
+
+std::vector<DirListNode> GetDirListing(std::string pathstring)
+{
+	std::vector<DirListNode> listing;
+
+    DIR *dp;
+    struct dirent *dirp;
+    if((dp  = opendir(pathstring.c_str())) == NULL) {
+		//std::cout<<"Error("<<errno<<") opening "<<pathstring<<std::endl;
+        return listing;
+    }
+
+    while ((dirp = readdir(dp)) != NULL) {
+		if(dirp->d_name[0]!='.'){
+			DirListNode node;
+			node.name = dirp->d_name;
+			if(dirp->d_type == DT_DIR) node.dir = true;
+			else node.dir = false;
+			listing.push_back(node);
+		}
+    }
+    closedir(dp);
+
+	return listing;
+}
+
+bool CreateDir(std::string path)
+{
+	int r = mkdir(path.c_str(), S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
+	if(r == 0)
+	{
+		return true;
+	}
+	else
+	{
+		// If already exists, return true
+		if(errno == EEXIST)
+			return true;
+		return false;
+	}
+}
+
+bool PathExists(std::string path)
+{
+	struct stat st;
+	return (stat(path.c_str(),&st) == 0);
+}
+
+#else
+
+#include "boost/filesystem/operations.hpp"
+namespace bfsys = boost::filesystem;
+
+std::vector<DirListNode> GetDirListing(std::string pathstring)
+{
+	std::vector<DirListNode> listing;
+
+	bfsys::path path(pathstring);
+
+	if( !exists( path ) ) return listing;
+
+	bfsys::directory_iterator end_itr; // default construction yields past-the-end
+	for( bfsys::directory_iterator itr( path ); itr != end_itr; ++itr ){
+		DirListNode node;
+		node.name = itr->leaf();
+		node.dir = is_directory(*itr);
+		listing.push_back(node);
+	}
+
+	return listing;
+}
+
+bool CreateDir(std::string path)
+{
+	std::cout<<"CreateDir not implemented in boost"<<std::endl;
+	return false;
+}
+
+#endif
+
+#endif
+
+}
+