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/*
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* Copyright (C) 2021 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "paths.hpp"
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#include <cstddef>
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#include <limits.h>
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#include <stdexcept>
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#if defined(_WIN32)
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#include <Shlobj.h>
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#include <windows.h>
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#else
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#include <pwd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#endif
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#if defined(_WIN32)
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std::string narrow(const std::wstring& wstring)
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{
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std::string string(WideCharToMultiByte(CP_UTF8, 0, &wstring[0], static_cast<int>(wstring.size()), nullptr, 0, nullptr, nullptr), '\0');
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WideCharToMultiByte(CP_UTF8, 0, &wstring[0], static_cast<int>(wstring.size()), &string[0], static_cast<int>(string.size()), nullptr, nullptr);
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return string;
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}
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std::wstring widen(const std::string& string)
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{
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std::wstring wstring(MultiByteToWideChar(CP_UTF8, 0, &string[0], static_cast<int>(string.size()), nullptr, 0), L'\0');
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MultiByteToWideChar(CP_UTF8, 0, &string[0], static_cast<int>(string.size()), &wstring[0], static_cast<int>(wstring.size()));
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return wstring;
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}
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#endif
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std::filesystem::path get_executable_path()
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{
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std::filesystem::path executable_path;
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#if defined(_WIN32)
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// Get executable path on Windows
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HMODULE hModule = GetModuleHandleW(nullptr);
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std::wstring wpath(MAX_PATH, L'\0');
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GetModuleFileNameW(hModule, &wpath[0], MAX_PATH);
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wpath.erase(std::find(wpath.begin(), wpath.end(), L'\0'), wpath.end());
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executable_path = narrow(wpath);
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#else
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// Get executable path on Linux
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char path[PATH_MAX];
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ssize_t length = ::readlink("/proc/self/exe", path, sizeof(path) - 1);
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if (length != -1)
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{
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path[length] = '\0';
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executable_path = path;
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}
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#endif
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return executable_path;
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}
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std::filesystem::path get_data_path(const std::string& application_name)
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{
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#if defined(_WIN32)
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return get_executable_path().parent_path();
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#else
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return get_executable_path().parent_path().parent_path() / "share" / application_name;
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#endif
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}
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std::filesystem::path get_config_path(const std::string& application_name)
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{
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std::filesystem::path config_path;
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#if defined(_WIN32)
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std::wstring wpath(MAX_PATH, L'\0');
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if (SHGetSpecialFolderPathW(nullptr, &wpath[0], CSIDL_LOCAL_APPDATA, FALSE))
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{
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wpath.erase(std::find(wpath.begin(), wpath.end(), L'\0'), wpath.end());
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config_path = std::filesystem::path(narrow(wpath)) / application_name;
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}
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#else
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// Determine home path
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std::filesystem::path home_path = getpwuid(getuid())->pw_dir;
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// Determine config path
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char* xdgConfigHome = std::getenv("XDG_CONFIG_HOME");
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if (!xdgConfigHome)
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{
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// Default to $HOME/.config/ as per:
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// https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html#variables
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config_path = home_path / ".config/" / application_name;
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}
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else
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{
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config_path = std::filesystem::path(xdgConfigHome) / application_name;
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}
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#endif
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return config_path;
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}
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