118 lines
3.2 KiB
C++
118 lines
3.2 KiB
C++
/*
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epple2
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Copyright (C) 2022 by Christopher A. Mosher <cmosher01@gmail.com>
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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, either version 3 of the License, or
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(at your option) any later version.
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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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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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/*
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* File: e2filesystem.cpp
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* Author: Christopher Alan Mosher, Shelton, Connecticut
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*
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* Created on December 7, 2022, 8:24 PM
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*/
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#include "e2filesystem.h"
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#include <boost/log/trivial.hpp>
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#include <system_error>
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static void log_ec(const std::error_code& ec) {
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BOOST_LOG_TRIVIAL(warning) << "error from native file-system: " << ec.value() << " " << ec.message();
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}
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std::filesystem::path valid_input_file(const std::filesystem::path path, const std::filesystem::path base) {
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std::filesystem::path p(path);
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std::error_code ec;
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BOOST_LOG_TRIVIAL(info) << "will check for file specified as: " << p.c_str();
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if (p.is_relative()) {
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BOOST_LOG_TRIVIAL(info) << "will check for file at relative path: " << p.c_str();
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std::filesystem::path b(base);
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if (b.empty()) {
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BOOST_LOG_TRIVIAL(info) << "no base path found; will use current path...";
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b = std::filesystem::current_path(ec);
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if (ec) {
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log_ec(ec);
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b.clear();
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}
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}
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BOOST_LOG_TRIVIAL(info) << "...relative to base path: " << b.c_str();
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p = b / p;
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}
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p = p.lexically_normal();
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BOOST_LOG_TRIVIAL(info) << "checking for file at absolute path: " << p.c_str();
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bool exists = std::filesystem::exists(p, ec);
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if (ec) {
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log_ec(ec);
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exists = false;
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}
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if (!exists) {
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BOOST_LOG_TRIVIAL(warning) << "can't find file: " << p.c_str();
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p = std::filesystem::weakly_canonical(p, ec);
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if (ec) {
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log_ec(ec);
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BOOST_LOG_TRIVIAL(warning) << "can't determine canonical path.";
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} else {
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BOOST_LOG_TRIVIAL(info) << "...canonical file path was: " << p.c_str();
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}
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p.clear();
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return p;
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}
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BOOST_LOG_TRIVIAL(info) << "found file: " << p.c_str();
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std::filesystem::path cp = std::filesystem::canonical(p, ec);
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if (ec) {
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log_ec(ec);
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BOOST_LOG_TRIVIAL(warning) << "can't determine canonical path, continuing anyway...";
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} else {
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BOOST_LOG_TRIVIAL(info) << "...canonical file path was: " << cp;
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}
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bool regular = std::filesystem::is_regular_file(p, ec);
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if (ec) {
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log_ec(ec);
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regular = false;
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}
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if (!regular) {
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BOOST_LOG_TRIVIAL(warning) << "not a regular file";
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p.clear();
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return p;
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}
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return p;
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}
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std::filesystem::path path_from_string(const wxString& s) {
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return std::filesystem::path{s.wc_str()};
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}
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