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/***************************************************************************
* Copyright (C) 2008-2014 by Andrzej Rybczak *
* electricityispower@gmail.com *
* *
* 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 St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <algorithm>
#include <boost/filesystem/operations.hpp>
#include <boost/program_options.hpp>
#include <iostream>
#include "bindings.h"
#include "configuration.h"
#include "config.h"
#include "mpdpp.h"
#include "settings.h"
#include "utility/string.h"
namespace po = boost::program_options;
using std::cerr;
using std::cout;
namespace {
const char *env_home;
std::string xdg_config_home()
{
std::string result;
const char *env_xdg_config_home = getenv("XDG_CONFIG_HOME");
if (env_xdg_config_home == nullptr)
result = "~/.config/";
else
{
result = env_xdg_config_home;
if (!result.empty() && result.back() != '/')
result += "/";
}
return result;
}
}
void expand_home(std::string &path)
{
assert(env_home != nullptr);
if (!path.empty() && path[0] == '~')
path.replace(0, 1, env_home);
}
bool configure(int argc, char **argv)
{
const std::vector<std::string> default_config_paths = {
"~/.ncmpcpp/config",
xdg_config_home() + "ncmpcpp/config"
};
std::string bindings_path;
std::vector<std::string> config_paths;
po::options_description options("Options");
options.add_options()
("host,h", po::value<std::string>()->default_value("localhost"), "connect to server at host")
("port,p", po::value<int>()->default_value(6600), "connect to server at port")
("config,c", po::value<std::vector<std::string>>(&config_paths)->default_value(default_config_paths, join<std::string>(default_config_paths, " AND ")), "specify configuration file(s)")
("ignore-config-errors", po::value<bool>()->default_value(false), "ignore unknown and invalid options in configuration files")
("bindings,b", po::value<std::string>(&bindings_path)->default_value("~/.ncmpcpp/bindings"), "specify bindings file")
("screen,s", po::value<std::string>(), "specify initial screen")
("slave-screen,S", po::value<std::string>(), "specify initial slave screen")
("help,?", "show help message")
("version,v", "display version information")
;
po::variables_map vm;
try
{
po::store(po::parse_command_line(argc, argv, options), vm);
if (vm.count("help"))
{
cout << "Usage: " << argv[0] << " [options]...\n" << options << "\n";
return false;
}
if (vm.count("version"))
{
std::cout << "ncmpcpp " << VERSION << "\n\n"
<< "optional screens compiled-in:\n"
# ifdef HAVE_TAGLIB_H
<< " - tag editor\n"
<< " - tiny tag editor\n"
# endif
# ifdef HAVE_CURL_CURL_H
<< " - artist info\n"
# endif
# ifdef ENABLE_OUTPUTS
<< " - outputs\n"
# endif
# ifdef ENABLE_VISUALIZER
<< " - visualizer\n"
# endif
# ifdef ENABLE_CLOCK
<< " - clock\n"
# endif
<< "\nencoding detection: "
# ifdef HAVE_LANGINFO_H
<< "enabled"
# else
<< "disabled"
# endif // HAVE_LANGINFO_H
<< "\nbuilt with support for:"
# ifdef HAVE_CURL_CURL_H
<< " curl"
# endif
# ifdef HAVE_FFTW3_H
<< " fftw"
# endif
<< " ncurses"
# ifdef HAVE_TAGLIB_H
<< " taglib"
# endif
# ifdef NCMPCPP_UNICODE
<< " unicode"
# endif
<< "\n";
return false;
}
po::notify(vm);
// get home directory
env_home = getenv("HOME");
if (env_home == nullptr)
{
cerr << "Fatal error: HOME environment variable is not defined\n";
return false;
}
// read configuration
std::for_each(config_paths.begin(), config_paths.end(), expand_home);
if (Config.read(config_paths, vm["ignore-config-errors"].as<bool>()) == false)
exit(1);
// if bindings file was not specified, use the one from main directory.
if (vm["bindings"].defaulted())
bindings_path = Config.ncmpcpp_directory + "bindings";
else
expand_home(bindings_path);
// read bindings
if (Bindings.read(bindings_path) == false)
exit(1);
Bindings.generateDefaults();
// create directories
boost::filesystem::create_directory(Config.ncmpcpp_directory);
boost::filesystem::create_directory(Config.lyrics_directory);
// try to get MPD connection details from environment variables
// as they take precedence over these from the configuration.
auto env_host = getenv("MPD_HOST");
auto env_port = getenv("MPD_PORT");
if (env_host != nullptr)
Mpd.SetHostname(env_host);
if (env_port != nullptr)
Mpd.SetPort(boost::lexical_cast<int>(env_port));
// if MPD connection details are provided as command line
// parameters, use them as their priority is the highest.
if (!vm["host"].defaulted())
Mpd.SetHostname(vm["host"].as<std::string>());
if (!vm["port"].defaulted())
Mpd.SetPort(vm["port"].as<int>());
Mpd.SetTimeout(Config.mpd_connection_timeout);
// custom startup screen
if (vm.count("screen"))
{
auto screen = vm["screen"].as<std::string>();
Config.startup_screen_type = stringtoStartupScreenType(screen);
if (Config.startup_screen_type == ScreenType::Unknown)
{
std::cerr << "Unknown screen: " << screen << "\n";
exit(1);
}
}
// custom startup slave screen
if (vm.count("slave-screen"))
{
auto screen = vm["slave-screen"].as<std::string>();
Config.startup_slave_screen_type = stringtoStartupScreenType(screen);
if (Config.startup_slave_screen_type == ScreenType::Unknown)
{
std::cerr << "Unknown slave screen: " << screen << "\n";
exit(1);
}
}
}
catch (std::exception &e)
{
cerr << "Error while processing configuration: " << e.what() << "\n";
exit(1);
}
return true;
}
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