nana/source/filesystem/fs_utility.cpp

146 lines
3.3 KiB
C++

/*
* A FileSystem Utility Implementation
* Copyright(C) 2003-2016 Jinhao(cnjinhao@hotmail.com)
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*
* @file: nana/filesystem/fs_utility.cpp
* @description:
* provide some interface for file managment
*/
#include <nana/filesystem/fs_utility.hpp>
#include <nana/deploy.hpp>
#include <vector>
#if defined(NANA_WINDOWS)
#include <windows.h>
#if defined(NANA_MINGW)
#ifndef _WIN32_IE
#define _WIN32_IE 0x0500
#endif
#endif
#include <shlobj.h>
#include <nana/datetime.hpp>
#elif defined(NANA_LINUX) || defined(NANA_MACOS)
#include <nana/charset.hpp>
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
#include <cstdio>
#include <cstring>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#endif
namespace nana
{
namespace filesystem
{
//Because of No wide character version of POSIX
#if defined(NANA_LINUX) || defined(NANA_MACOS)
typedef std::string string_t;
const char* splstr = "/\\";
#else
typedef std::wstring string_t;
const wchar_t* splstr = L"/\\";
#endif
namespace detail
{
#if defined(NANA_WINDOWS)
void filetime_to_c_tm(FILETIME& ft, struct tm& t)
{
FILETIME local_file_time;
if(::FileTimeToLocalFileTime(&ft, &local_file_time))
{
SYSTEMTIME st;
::FileTimeToSystemTime(&local_file_time, &st);
t.tm_year = st.wYear - 1900;
t.tm_mon = st.wMonth - 1;
t.tm_mday = st.wDay;
t.tm_wday = st.wDayOfWeek - 1;
t.tm_yday = nana::date::day_in_year(st.wYear, st.wMonth, st.wDay);
t.tm_hour = st.wHour;
t.tm_min = st.wMinute;
t.tm_sec = st.wSecond;
}
}
#endif
}//end namespace detail
bool modified_file_time(const ::std::string& file, struct tm& t)
{
#if defined(NANA_WINDOWS)
WIN32_FILE_ATTRIBUTE_DATA attr;
if(::GetFileAttributesExW(to_nstring(file).c_str(), GetFileExInfoStandard, &attr))
{
FILETIME local_file_time;
if(::FileTimeToLocalFileTime(&attr.ftLastWriteTime, &local_file_time))
{
SYSTEMTIME st;
::FileTimeToSystemTime(&local_file_time, &st);
t.tm_year = st.wYear - 1900;
t.tm_mon = st.wMonth - 1;
t.tm_mday = st.wDay;
t.tm_wday = st.wDayOfWeek - 1;
t.tm_yday = nana::date::day_in_year(st.wYear, st.wMonth, st.wDay);
t.tm_hour = st.wHour;
t.tm_min = st.wMinute;
t.tm_sec = st.wSecond;
return true;
}
}
#elif defined(NANA_LINUX) || defined(NANA_MACOS)
struct stat attr;
if(0 == ::stat(file.c_str(), &attr))
{
t = *(::localtime(&attr.st_ctime));
return true;
}
#endif
return false;
}
bool rmfile(const char* file)
{
#if defined(NANA_WINDOWS)
bool ret = false;
if(file)
{
ret = (::DeleteFile(utf8_cast(file).c_str()) == TRUE);
if(!ret)
ret = (ERROR_FILE_NOT_FOUND == ::GetLastError());
}
return ret;
#elif defined(NANA_LINUX) || defined(NANA_MACOS)
if(std::remove(file))
return (errno == ENOENT);
return true;
#endif
}
std::string path_user()
{
#if defined(NANA_WINDOWS)
wchar_t path[MAX_PATH];
if(SUCCEEDED(SHGetFolderPath(0, CSIDL_PROFILE, 0, SHGFP_TYPE_CURRENT, path)))
return to_utf8(path);
#elif defined(NANA_LINUX) || defined(NANA_MACOS)
const char * s = ::getenv("HOME");
if(s)
return s;
#endif
return std::string();
}
}//end namespace filesystem
}//end namespace nana