mirror of
https://github.com/XRPLF/rippled.git
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3e152fec74
This change refactors the codebase to use the "east const convention", and adds a clang-format rule to follow this convention.
106 lines
2.8 KiB
C++
106 lines
2.8 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2018 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include <xrpl/basics/FileUtilities.h>
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#include <boost/filesystem/fstream.hpp>
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#include <boost/filesystem/operations.hpp>
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#include <boost/filesystem/path.hpp>
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#include <boost/system/detail/errc.hpp>
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#include <boost/system/detail/error_code.hpp>
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#include <boost/system/errc.hpp>
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#include <cerrno>
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#include <cstddef>
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#include <ios>
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#include <iterator>
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#include <optional>
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#include <string>
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namespace ripple {
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std::string
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getFileContents(
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boost::system::error_code& ec,
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boost::filesystem::path const& sourcePath,
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std::optional<std::size_t> maxSize)
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{
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using namespace boost::filesystem;
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using namespace boost::system::errc;
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path fullPath{canonical(sourcePath, ec)};
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if (ec)
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return {};
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if (maxSize && (file_size(fullPath, ec) > *maxSize || ec))
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{
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if (!ec)
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ec = make_error_code(file_too_large);
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return {};
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}
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ifstream fileStream(fullPath, std::ios::in);
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if (!fileStream)
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{
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ec = make_error_code(static_cast<errc_t>(errno));
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return {};
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}
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std::string const result{
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std::istreambuf_iterator<char>{fileStream},
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std::istreambuf_iterator<char>{}};
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if (fileStream.bad())
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{
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ec = make_error_code(static_cast<errc_t>(errno));
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return {};
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}
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return result;
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}
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void
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writeFileContents(
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boost::system::error_code& ec,
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boost::filesystem::path const& destPath,
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std::string const& contents)
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{
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using namespace boost::filesystem;
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using namespace boost::system::errc;
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ofstream fileStream(destPath, std::ios::out | std::ios::trunc);
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if (!fileStream)
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{
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ec = make_error_code(static_cast<errc_t>(errno));
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return;
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}
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fileStream << contents;
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if (fileStream.bad())
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{
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ec = make_error_code(static_cast<errc_t>(errno));
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return;
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}
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}
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} // namespace ripple
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