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/*
Copyright (C) 2018-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "cross.h"
#include "state.h"
#include "util.h"
#include <glib.h>
using std::string;
using boost::optional;
boost::optional<boost::filesystem::path> State::override_path;
/* List of config versions to look for in descending order of preference;
* i.e. look at the first one, and if that doesn't exist, try the second, etc.
*/
static std::vector<std::string> config_versions = { "2.18", "2.16" };
static
boost::filesystem::path
config_path_or_override (optional<string> version)
{
if (State::override_path) {
auto p = *State::override_path;
if (version) {
p /= *version;
}
return p;
}
return config_path (version);
}
/** @param file State filename
* @return Full path to read @file from.
*/
boost::filesystem::path
State::read_path (string file)
{
using namespace boost::filesystem;
for (auto i: config_versions) {
auto full = config_path_or_override(i) / file;
if (exists(full)) {
return full;
}
}
return config_path_or_override({}) / file;
}
/** @param file State filename
* @return Full path to write @file to.
*/
boost::filesystem::path
State::write_path (string file)
{
boost::filesystem::path p = config_path_or_override(config_versions.front());
boost::system::error_code ec;
boost::filesystem::create_directories (p, ec);
p /= file;
return p;
}
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