xlnt/tests/helpers/path_helper.hpp
2015-11-03 08:38:09 -05:00

140 lines
3.3 KiB
C++

#pragma once
#include <array>
#include <fstream>
#include <string>
#include <sstream>
#include <detail/include_windows.hpp>
#ifdef __APPLE__
#include <mach-o/dyld.h>
#include <sys/stat.h>
#elif defined(_MSC_VER)
#include <Shlwapi.h>
#elif defined(__linux)
#include <unistd.h>
#include <linux/limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#endif
class PathHelper
{
public:
static std::string read_file(const std::string &filename)
{
std::ifstream f(filename);
std::ostringstream ss;
ss << f.rdbuf();
return ss.str();
}
static std::string WindowsToUniversalPath(const std::string &windows_path)
{
std::string fixed;
std::stringstream ss(windows_path);
std::string part;
while(std::getline(ss, part, '\\'))
{
if(fixed == "")
{
fixed = part;
}
else
{
fixed += "/" + part;
}
}
return fixed;
}
static std::string GetExecutableDirectory()
{
#ifdef __APPLE__
std::array<char, 1024> path;
uint32_t size = static_cast<uint32_t>(path.size());
if (_NSGetExecutablePath(path.data(), &size) == 0)
{
return std::string(path.begin(), std::find(path.begin(), path.end(), '\0') - 9);
}
throw std::runtime_error("buffer too small, " + std::to_string(path.size()) + ", should be: " + std::to_string(size));
#elif defined(_MSC_VER)
std::array<TCHAR, MAX_PATH> buffer;
DWORD result = GetModuleFileName(nullptr, buffer.data(), (DWORD)buffer.size());
if(result == 0 || result == buffer.size())
{
throw std::runtime_error("GetModuleFileName failed or buffer was too small");
}
return WindowsToUniversalPath(std::string(buffer.begin(), buffer.begin() + result - 13)) + "/";
#else
char arg1[20];
char exepath[PATH_MAX + 1] = {0};
sprintf(arg1, "/proc/%d/exe", getpid());
readlink(arg1, exepath, 1024);
return std::string(exepath).substr(0, std::strlen(exepath) - 9);
#endif
}
static std::string GetDataDirectory(const std::string &append = "")
{
return GetExecutableDirectory() + "../tests/data" + append;
}
static void CopyFile(const std::string &source, const std::string &destination, bool overwrite)
{
if(!overwrite && FileExists(destination))
{
throw std::runtime_error("destination file already exists and overwrite==false");
}
std::ifstream src(source, std::ios::binary);
std::ofstream dst(destination, std::ios::binary);
dst << src.rdbuf();
}
static void DeleteFile(const std::string &path)
{
std::remove(path.c_str());
}
static bool FileExists(const std::string &path)
{
#ifdef _MSC_VER
std::wstring path_wide(path.begin(), path.end());
return PathFileExists(path_wide.c_str()) && !PathIsDirectory(path_wide.c_str());
#else
try
{
struct stat fileAtt;
if (stat(path.c_str(), &fileAtt) == 0)
{
return S_ISREG(fileAtt.st_mode);
}
}
catch(...) {}
return false;
#endif
}
};