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