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/*
Copyright (C) 2023-2024 Selwin van Dijk
This file is part of signalbackup-tools.
signalbackup-tools is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
signalbackup-tools is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with signalbackup-tools. If not, see <https://www.gnu.org/licenses/>.
*/
#include "signalbackup.ih"
bool SignalBackup::prepareOutputDirectory(std::string const &directory, bool overwrite, bool allowappend, bool append) const
{
// check if dir exists, create if not
if (!bepaald::fileOrDirExists(directory))
{
// try to create
if (!bepaald::createDir(directory))
{
Logger::error("Failed to create directory `", directory, "'",
" (errno: ", std::strerror(errno), ")"); // note: errno is not required to be set by std
// temporary !!
{
std::error_code ec;
std::filesystem::space_info const si = std::filesystem::space(directory, ec);
if (!ec)
{
Logger::message("Available : ", static_cast<std::intmax_t>(si.available));
Logger::message("Backup size: ", d_fd->total());
}
}
return false;
}
}
// directory exists, but is it a dir?
if (!bepaald::isDir(directory))
{
Logger::error("`", directory, "' is not a directory.");
return false;
}
// and is it empty?
if (!bepaald::isEmpty(directory) && // NOT EMPTY, but we cant write into it,
((allowappend && !append) || !allowappend)) // because append is not allowed, or allowed but not requested
{
if (!overwrite)
{
if (allowappend)
{
Logger::error("Directory '", directory, "' is not empty. Use --overwrite to clear directory contents before");
Logger::error_indent("export, or --append to only write new files.");
}
else
Logger::error("Directory '", directory, "' is not empty. Use --overwrite to clear directory contents before export.");
return false;
}
Logger::message("Clearing contents of directory '", directory, "'...");
if (!bepaald::clearDirectory(directory))
{
Logger::error("Failed to empty directory '", directory, "'");
return false;
}
}
return true;
}
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