104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
|
/*
|
||
|
|
* Copyright (C) 2018 James Turner
|
||
|
|
* Copyright (C) 2018 Edward d'Auvergne
|
||
|
|
*
|
||
|
|
* This file is part of the program FlightGear.
|
||
|
|
*
|
||
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <iostream>
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
|
||
|
|
#include "dataStore.hxx"
|
||
|
|
|
||
|
|
|
||
|
|
// Sanity check.
|
||
|
|
bool looksLikeFGData(const SGPath& path)
|
||
|
|
{
|
||
|
|
return (path / "defaults.xml").exists();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Set up the path to FGData.
|
||
|
|
int DataStore::findFGRoot(const std::string& fgRootCmdLineOpt, bool debug)
|
||
|
|
{
|
||
|
|
SGPath fgRoot;
|
||
|
|
|
||
|
|
// Command line supplied path.
|
||
|
|
if (!fgRootCmdLineOpt.empty()) {
|
||
|
|
fgRoot = SGPath::fromUtf8(fgRootCmdLineOpt);
|
||
|
|
if (looksLikeFGData(fgRoot)) {
|
||
|
|
if (debug)
|
||
|
|
std::cerr << "FGdata from the command line: " << fgRoot << std::endl;
|
||
|
|
_fgRootPath = fgRoot;
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
// Fail if an invalid path is supplied.
|
||
|
|
} else {
|
||
|
|
std::cerr << "The supplied path \"" << fgRootCmdLineOpt << "\" is not a valid FGData path." << std::endl;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// The FG_DATA_DIR CMake option.
|
||
|
|
fgRoot = SGPath::fromUtf8(PKGLIBDIR);
|
||
|
|
if (looksLikeFGData(fgRoot)) {
|
||
|
|
if (debug)
|
||
|
|
std::cerr << "FGdata found via $PKGLIBDIR: " << fgRoot << std::endl;
|
||
|
|
_fgRootPath = fgRoot;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// The FG_ROOT environmental variable.
|
||
|
|
if (std::getenv("FG_ROOT")) {
|
||
|
|
fgRoot = SGPath::fromEnv("FG_ROOT");
|
||
|
|
if (looksLikeFGData(fgRoot)) {
|
||
|
|
if (debug)
|
||
|
|
std::cerr << "FGdata found via $FG_ROOT: " << fgRoot << std::endl;
|
||
|
|
_fgRootPath = fgRoot;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Try in ../fgdata.
|
||
|
|
fgRoot = SGPath::fromUtf8(FGSRCDIR) / ".." / "fgdata";
|
||
|
|
if (looksLikeFGData(fgRoot)) {
|
||
|
|
if (debug)
|
||
|
|
std::cerr << "FGdata found at \"$FGSRCDIR/../fgdata\": " << fgRoot << std::endl;
|
||
|
|
_fgRootPath = fgRoot;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Try in ../data.
|
||
|
|
fgRoot = SGPath::fromUtf8(FGSRCDIR) / ".." / "data";
|
||
|
|
if (looksLikeFGData(fgRoot)) {
|
||
|
|
if (debug)
|
||
|
|
std::cerr << "FGdata found at \"$FGSRCDIR/../data\": " << std::endl;
|
||
|
|
_fgRootPath = fgRoot;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// No FGData.
|
||
|
|
std::cerr << "FGData not found." << std::endl;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get the path to FGData.
|
||
|
|
SGPath DataStore::getFGRoot()
|
||
|
|
{
|
||
|
|
return _fgRootPath;
|
||
|
|
}
|