118 lines
3.2 KiB
C++
118 lines
3.2 KiB
C++
/* This file is part of epubgrep.
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* Copyright © 2021 tastytea <tastytea@tastytea.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "options.hpp"
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#include "fs-compat.hpp"
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#include "version.hpp"
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#include <boost/locale/message.hpp>
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#include <boost/program_options/options_description.hpp>
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#include <boost/program_options/parsers.hpp>
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#include <boost/program_options/variables_map.hpp>
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#include <cstdlib>
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#include <fstream>
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#include <iostream>
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#include <string>
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namespace epubgrep
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{
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namespace po = boost::program_options;
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using boost::locale::translate;
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using std::cout;
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po::variables_map parse_options(int argc, char *argv[])
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{
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po::options_description desc(translate("Available options"));
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// clang-format off
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desc.add_options()
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("help",
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translate("Display this help and exit").str().data())
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("version",
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translate("Display version information and exit").str().data())
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("extended-regexp",
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translate("PATTERNS are extended regular expressions").str().data())
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("perl-regexp",
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translate("PATTERNS are Perl regular expressions").str().data())
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("ignore-case",
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translate("Ignore case distinctions in patterns and data")
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.str().data())
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;
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// clang-format on
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po::variables_map vm;
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po::store(po::parse_command_line(argc, argv, desc), vm);
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std::ifstream configfile(get_config_path());
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po::store(po::parse_config_file(configfile, desc, true), vm);
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configfile.close();
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po::notify(vm);
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if (vm.count("help") != 0)
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{
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cout << translate("Usage: epubgrep [OPTION]… PATTERNS [FILE]…\n");
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cout << desc;
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}
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else if (vm.count("version") != 0)
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{
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cout << "epubgrep " << epubgrep::version << '\n';
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cout << translate(
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"Copyright © 2021 tastytea <tastytea@tastytea.de>\n"
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"License AGPL-3.0-only <https://gnu.org/licenses/agpl.html>.\n"
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"This program comes with ABSOLUTELY NO WARRANTY. This is "
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"free software,\n"
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"and you are welcome to redistribute it under certain "
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"conditions.\n");
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}
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return vm;
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}
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fs::path get_config_path()
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{
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auto get_env = [](std::string const &name)
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{
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const char *env = std::getenv(name.c_str());
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if (env != nullptr)
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{
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return env;
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}
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return "";
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};
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fs::path path{get_env("XDG_CONFIG_HOME")};
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if (path.empty())
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{
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path = get_env("HOME");
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if (!path.empty())
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{
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path /= ".config";
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}
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}
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if (!path.empty())
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{
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return path /= "epubgrep.conf";
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}
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return "epubgrep.conf";
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}
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} // namespace epubgrep
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