63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
/* This file is part of gitea2rss.
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* Copyright © 2019, 2020 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 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 General Public License for more details.
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*
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* You should have received a copy of the GNU 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 "gitea2rss.hpp"
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#include <ctime>
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#include <iomanip>
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#include <string>
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namespace gitea2rss
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{
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string strtime(const system_clock::time_point &timepoint)
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{
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constexpr uint16_t bufsize = 1024;
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std::time_t time = system_clock::to_time_t(timepoint);
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std::tm *tm{std::gmtime(&time)};
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char buffer[bufsize];
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std::strftime(buffer, bufsize, "%a, %d %b %Y %T %z", tm);
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return static_cast<const string>(buffer);
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}
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string strtime(const string &time)
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{
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// FIXME: Do this more elegantly.
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std::tm tm = {};
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tm.tm_isdst = -1; // Detect daylight saving time.
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std::stringstream ss(time);
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ss >> std::get_time(&tm, "%Y-%m-%dT%T");
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std::time_t time_tmp = timegm(&tm);
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constexpr size_t zone_start = 19;
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if (time[zone_start] == '+')
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{
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string zone = time.substr(zone_start + 1);
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time_tmp -= std::stol(zone.substr(0, 2)) * 60 * 60;
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time_tmp -= std::stol(zone.substr(3)) * 60;
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}
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else if (time[zone_start] == '+')
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{
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string zone = time.substr(zone_start + 1);
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time_tmp += std::stol(zone.substr(0, 2)) * 60 * 60;
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time_tmp += std::stol(zone.substr(3)) * 60;
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}
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return strtime(system_clock::from_time_t(time_tmp));
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}
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} // namespace gitea2rss
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