162 lines
4.5 KiB
C++
162 lines
4.5 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2013 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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//#define BOOST_FILESYSTEM_VERSION 2
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// mapnik
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#include <mapnik/utils.hpp>
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#include <mapnik/util/fs.hpp>
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// boost
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#include <boost/filesystem/convenience.hpp>
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// stl
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#include <stdexcept>
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#if (BOOST_FILESYSTEM_VERSION <= 2)
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namespace boost {
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namespace filesystem {
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path read_symlink(const path& p)
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{
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path symlink_path;
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#ifdef BOOST_POSIX_API
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for (std::size_t path_max = 64;; path_max *= 2)// loop 'til buffer is large enough
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{
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const std::unique_ptr<char[]> buf(new char[path_max]);
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ssize_t result;
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if ((result=::readlink(p.string().c_str(), buf.get(), path_max))== -1)
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{
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throw std::runtime_error("could not read symlink");
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}
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else
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{
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if(result != static_cast<ssize_t>(path_max))
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{
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symlink_path.assign(buf.get(), buf.get() + result);
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break;
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}
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}
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}
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#endif
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return symlink_path;
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}
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}
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}
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#endif
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namespace mapnik {
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namespace util {
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bool exists(std::string const& filepath)
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{
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#ifdef _WINDOWS
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return boost::filesystem::exists(mapnik::utf8_to_utf16(filepath));
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#else
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return boost::filesystem::exists(filepath);
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#endif
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}
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bool is_directory(std::string const& filepath)
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{
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#ifdef _WINDOWS
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return boost::filesystem::is_directory(mapnik::utf8_to_utf16(filepath));
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#else
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return boost::filesystem::is_directory(filepath);
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#endif
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}
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bool is_regular_file(std::string const& filepath)
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{
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#ifdef _WINDOWS
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return boost::filesystem::is_regular_file(mapnik::utf8_to_utf16(filepath));
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#else
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return boost::filesystem::is_regular_file(filepath);
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#endif
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}
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bool remove(std::string const& filepath)
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{
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#ifdef _WINDOWS
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return boost::filesystem::remove(mapnik::utf8_to_utf16(filepath));
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#else
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return boost::filesystem::remove(filepath);
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#endif
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}
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bool is_relative(std::string const& filepath)
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{
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#ifdef _WINDOWS
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boost::filesystem::path child_path(mapnik::utf8_to_utf16(filepath));
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#else
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boost::filesystem::path child_path(filepath);
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#endif
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return (! child_path.has_root_directory() && ! child_path.has_root_name());
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}
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std::string make_relative(std::string const& filepath, std::string const& base)
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{
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#ifdef _WINDOWS
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boost::filesystem::path absolute_path(mapnik::utf8_to_utf16(base));
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#else
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boost::filesystem::path absolute_path(base);
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#endif
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// support symlinks
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if (boost::filesystem::is_symlink(absolute_path))
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{
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absolute_path = boost::filesystem::read_symlink(absolute_path);
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}
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#if (BOOST_FILESYSTEM_VERSION == 3)
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return boost::filesystem::absolute(absolute_path.parent_path() / filepath).string();
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#else
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return boost::filesystem::complete(absolute_path.branch_path() / filepath).normalize().string();
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#endif
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}
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std::string make_absolute(std::string const& filepath, std::string const& base)
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{
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#if (BOOST_FILESYSTEM_VERSION == 3)
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// TODO - normalize is now deprecated, use make_preferred?
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return boost::filesystem::absolute(boost::filesystem::path(base)/filepath).string();
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#else // v2
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return boost::filesystem::complete(boost::filesystem::path(base)/filepath).normalize().string();
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#endif
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}
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std::string dirname(std::string const& filepath)
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{
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boost::filesystem::path bp(filepath);
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#if (BOOST_FILESYSTEM_VERSION == 3)
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return bp.parent_path().string();
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#else // v2
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return bp.branch_path().string();
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#endif
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}
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} // end namespace util
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} // end namespace mapnik
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