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73 lines
2.0 KiB
C++

/**
* @file rba.cpp
* A "really basic archiver"
*
* Copyright (C) 2018 Clyne Sullivan
*
* This program 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.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <iostream>
#include <fstream>
#include <string>
#include <cstdint>
int main(int argc, char *argv[])
{
// check args
if (argc < 3) {
std::cout << "Usage: " << argv[0] << " archive files...\n";
return 0;
}
std::ofstream archive (argv[1], std::ios::out);
for (int i = 2; i < argc; i++) {
// attempt to read file contents
std::string fileName (argv[i]);
std::ifstream contents (fileName, std::ios::in | std::ios::ate);
std::string shortName;
if (auto pos = fileName.rfind('/'); pos != std::string::npos)
shortName = fileName.substr(pos + 1);
else
shortName = fileName;
if (contents.good()) {
uint32_t size = contents.tellg();
contents.seekg(0);
std::cout << "Adding file " << fileName <<" ("
<< size << " bytes)...\n";
// read in file
char *buffer = new char[size];
contents.read(buffer, size);
// write name size/text
uint32_t nameSize = shortName.size();
archive.write((char *)&nameSize, sizeof(uint32_t));
archive.write(shortName.data(), nameSize);
// write data size/content
archive.write((char *)&size, sizeof(uint32_t));
archive.write(buffer, size);
delete[] buffer;
} else {
std::cout << "Failed to add file " << fileName
<< ", continuing...\n";
}
}
std::cout << "Created archive " << argv[1] << '\n';
return 0;
}