140 lines
5.0 KiB
C++
140 lines
5.0 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include <fstream>
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#include <boost/algorithm/string.hpp>
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#include "katja/sbo.hpp"
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namespace katja
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{
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info_file::info_file(const std::string& program_name, const std::string& version,
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const std::string homepage, const std::string& email, const std::string& maintainer)
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: program_name(program_name), version(version), homepage(homepage), email(email), maintainer(maintainer)
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{
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}
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bool trim_info_line(std::string& info_value)
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{
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if (boost::algorithm::ends_with(info_value, "\""))
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{
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info_value.pop_back();
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return false;
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}
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else if (boost::algorithm::ends_with(info_value, "\\"))
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{
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info_value.pop_back();
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return true;
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}
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return false;
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}
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std::optional<info_file> read_slackbuild_info(const std::filesystem::path& info_filepath)
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{
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std::ifstream info_stream{ info_filepath };
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std::string info_line, info_variable, info_value;
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std::string program_name, version, homepage, email, maintainer;
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std::vector<std::string> download, md5sum, download_x86_64, md5sum_x86_64, requires;
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bool continuation{ false };
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while (std::getline(info_stream, info_line))
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{
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if (info_line.empty())
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{
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continue;
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}
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else if (!continuation)
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{
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auto equals_position = std::find(info_line.cbegin(), info_line.cend(), '=');
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info_variable = std::string(info_line.cbegin(), equals_position);
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if (equals_position == info_line.cend()
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|| ++equals_position == info_line.cend() || *equals_position != '"')
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{
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return std::nullopt;
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}
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info_value = std::string(std::next(equals_position), info_line.cend());
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}
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else
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{
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info_value += info_line;
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}
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continuation = trim_info_line(info_value);
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if (!continuation)
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{
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if (info_variable == "PRGNAM")
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{
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std::swap(program_name, info_value);
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}
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else if (info_variable == "VERSION")
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{
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std::swap(version, info_value);
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}
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else if (info_variable == "HOMEPAGE")
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{
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std::swap(homepage, info_value);
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}
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else if (info_variable == "EMAIL")
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{
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std::swap(email, info_value);
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}
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else if (info_variable == "MAINTAINER")
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{
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std::swap(maintainer, info_value);
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}
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else if (info_variable == "DOWNLOAD")
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{
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boost::split(download, info_value, boost::is_any_of(" "), boost::token_compress_on);
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}
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else if (info_variable == "MD5SUM")
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{
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boost::split(md5sum, info_value, boost::is_any_of(" "), boost::token_compress_on);
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}
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else if (info_variable == "DOWNLOAD_x86_64")
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{
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boost::split(download_x86_64, info_value, boost::is_any_of(" "), boost::token_compress_on);
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}
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else if (info_variable == "MD5SUM_x86_64")
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{
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boost::split(md5sum_x86_64, info_value, boost::is_any_of(" "), boost::token_compress_on);
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}
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else if (info_variable == "REQUIRES")
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{
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boost::split(requires, info_value, boost::is_any_of(" "), boost::token_compress_on);
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}
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}
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}
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return std::make_optional<info_file>(program_name, version, homepage, email, maintainer);
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}
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void search_for_slackbuilds(std::vector<info_file>& info_files, const std::filesystem::path& directory)
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{
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for (const auto& entry : std::filesystem::directory_iterator(directory))
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{
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std::filesystem::path entry_path = entry;
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std::filesystem::path info_filename = entry_path.filename();
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info_filename.replace_extension(".info");
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std::filesystem::path info_filepath = entry_path / info_filename;
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if (std::filesystem::exists(info_filepath))
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{
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auto slackbuild_info = read_slackbuild_info(info_filepath);
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if (slackbuild_info.has_value())
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{
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info_files.emplace_back(std::move(slackbuild_info.value()));
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}
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}
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else if (std::filesystem::is_directory(entry_path))
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{
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search_for_slackbuilds(info_files, entry_path);
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}
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}
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}
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}
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