106 lines
2.9 KiB
C++
106 lines
2.9 KiB
C++
/* Copyright (C) 2009 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. 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 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "Paths.h"
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#include "lib/file/file_system_util.h"
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#include "lib/sysdep/sysdep.h" // sys_get_executable_name
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#include "lib/sysdep/filesystem.h" // wrealpath
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#if OS_WIN
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# include "lib/sysdep/os/win/wutil.h" // wutil_AppdataPath
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#endif
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Paths::Paths(const CmdLineArgs& args)
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{
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m_root = Root(args.GetArg0());
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#ifdef INSTALLED_DATADIR
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m_rdata = OsPath(STRINGIZE(INSTALLED_DATADIR))/"";
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#else
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m_rdata = m_root/"data"/"";
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#endif
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const char* subdirectoryName = args.Has("writableRoot")? 0 : "0ad";
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// everything is a subdirectory of the root
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if(!subdirectoryName)
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{
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m_data = m_rdata;
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m_config = m_data/"config"/"";
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m_cache = m_data/"cache"/"";
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m_logs = m_root/"logs"/"";
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}
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else
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{
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#if OS_WIN
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const OsPath appdata = wutil_AppdataPath() / subdirectoryName/"";
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m_data = appdata/"data"/"";
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m_config = appdata/"config"/"";
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m_cache = appdata/"cache"/"";
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m_logs = appdata/"logs"/"";
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#else
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const char* envHome = getenv("HOME");
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ENSURE(envHome);
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const OsPath home(envHome);
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const OsPath xdgData = XDG_Path("XDG_DATA_HOME", home, home/".local/share/") / subdirectoryName;
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const OsPath xdgConfig = XDG_Path("XDG_CONFIG_HOME", home, home/".config/" ) / subdirectoryName;
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const OsPath xdgCache = XDG_Path("XDG_CACHE_HOME", home, home/".cache/" ) / subdirectoryName;
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m_data = xdgData/"";
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m_cache = xdgCache/"";
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m_config = xdgConfig/"config"/"";
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m_logs = xdgConfig/"logs"/"";
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#endif
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}
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}
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/*static*/ OsPath Paths::Root(const OsPath& argv0)
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{
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// get full path to executable
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OsPath pathname = sys_ExecutablePathname(); // safe, but requires OS-specific implementation
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if(pathname.empty()) // failed, use argv[0] instead
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{
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errno = 0;
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pathname = wrealpath(argv0);
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if(pathname.empty())
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WARN_IF_ERR(StatusFromErrno());
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}
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// make sure it's valid
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if(!fs_util::FileExists(pathname))
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WARN_IF_ERR(StatusFromErrno());
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for(size_t i = 0; i < 2; i++) // remove "system/name.exe"
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pathname = pathname.Parent();
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return pathname;
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}
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/*static*/ OsPath Paths::XDG_Path(const char* envname, const OsPath& home, const OsPath& defaultPath)
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{
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const char* path = getenv(envname);
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if(path)
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{
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if(path[0] != '/') // relative to $HOME
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return home / path/"";
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return OsPath(path)/"";
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}
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return defaultPath/"";
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}
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