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/*
* Copyright (c) 2005 Tim Walters. All rights reserved.
* Copyright (c) 2017 Brian Heim. All rights reserved.
* Created by Tim Walters on 2005-10-19.
*
* Revision history:
* Changed from SC_DirUtils to SC_Filesystem (Brian Heim, 2017-04-03)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
/*
* SC_Filesystem implementation for Linux/FreeBSD/OpenBSD.
*/
#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__)
# include "SC_Filesystem.hpp"
// system
# include <glob.h> // ::glob, glob_t
// workaround for musl not yet supporting GLOB_TILDE
# ifndef GLOB_TILDE
# define GLOB_TILDE 0
# endif
using Path = SC_Filesystem::Path;
using DirName = SC_Filesystem::DirName;
using DirMap = SC_Filesystem::DirMap;
//============ DIRECTORY NAMES =============//
const char* SHARE_DIR_NAME = "share";
const char* USER_DIR_NAME = "usr";
const char* LOCAL_DIR_NAME = "local";
const char* DOT_LOCAL = ".local";
const char* DOT_CONFIG = ".config";
const Path ROOT_PATH = Path("/");
//============ PATH UTILITIES =============//
Path SC_Filesystem::resolveIfAlias(const Path& p, bool& isAlias) {
isAlias = false;
return p;
}
//============ GLOB UTILITIES =============//
struct SC_Filesystem::Glob {
glob_t mHandle;
size_t mEntry;
};
SC_Filesystem::Glob* SC_Filesystem::makeGlob(const char* pattern) {
Glob* glob = new Glob;
const int flags = GLOB_MARK | GLOB_TILDE;
const int err = ::glob(pattern, flags, nullptr, &glob->mHandle);
if (err < 0) {
delete glob;
return nullptr;
}
glob->mEntry = 0;
return glob;
}
void SC_Filesystem::freeGlob(Glob* glob) {
globfree(&glob->mHandle);
delete glob;
}
Path SC_Filesystem::globNext(Glob* glob) {
if (glob->mEntry >= glob->mHandle.gl_pathc)
return Path();
return Path(glob->mHandle.gl_pathv[glob->mEntry++]);
}
//============= PRIVATE METHODS ==============//
bool SC_Filesystem::isNonHostPlatformDirectoryName(const std::string& s) {
return s == "osx" || s == "windows" || s == "iphone";
}
Path SC_Filesystem::defaultSystemAppSupportDirectory() {
# ifdef SC_DATA_DIR
return Path(SC_DATA_DIR);
# else
return ROOT_PATH / LOCAL_DIR_NAME / SHARE_DIR_NAME / SC_FOLDERNAME_APPLICATION_NAME;
# endif
}
Path SC_Filesystem::defaultUserHomeDirectory() {
const char* home = getenv("HOME");
return Path(home ? home : "");
}
Path SC_Filesystem::defaultUserAppSupportDirectory() {
const char* xdg_data_home = getenv("XDG_DATA_HOME");
if (xdg_data_home)
return Path(xdg_data_home) / SC_FOLDERNAME_APPLICATION_NAME;
const Path& p = defaultUserHomeDirectory();
return p.empty() ? p : p / DOT_LOCAL / SHARE_DIR_NAME / SC_FOLDERNAME_APPLICATION_NAME;
}
Path SC_Filesystem::defaultUserConfigDirectory() {
const char* xdg_config_home = getenv("XDG_CONFIG_HOME");
if (xdg_config_home)
return Path(xdg_config_home) / SC_FOLDERNAME_APPLICATION_NAME;
const Path& p = defaultUserHomeDirectory();
return p.empty() ? p : p / DOT_CONFIG / SC_FOLDERNAME_APPLICATION_NAME;
}
Path SC_Filesystem::defaultResourceDirectory() {
# ifdef SC_DATA_DIR
return Path(SC_DATA_DIR);
# else
return ROOT_PATH / USER_DIR_NAME / SHARE_DIR_NAME / SC_FOLDERNAME_APPLICATION_NAME;
# endif
}
#endif // defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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