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Try working with libarchive better

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This commit is contained in:
Simon Quigley 2024-12-18 16:46:00 -06:00
parent 0ba157d434
commit de65c444a8
1 changed files with 39 additions and 6 deletions
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45
cpp/common.cpp
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@ -14,8 +14,12 @@
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#include "common.h"
#include <archive.h>
#include <archive_entry.h>
extern "C" {
#include <archive.h>
#include <archive_entry.h>
}
#include <iostream>
#include <fstream>
#include <sstream>
@ -25,12 +29,14 @@
#include <filesystem>
#include <chrono>
#include <regex>
#include <optional>
namespace fs = std::filesystem;
static void log_info(const std::string &msg) {
std::cout << "[INFO] " << msg << "\n";
}
static void log_error(const std::string &msg) {
std::cerr << "[ERROR] " << msg << "\n";
}
@ -147,21 +153,48 @@ void create_tarball(const std::string& tarballPath, const std::string& directory
archive_entry_set_pathname(entry, relativePath.c_str());
archive_entry_set_size(entry, fs::file_size(path));
archive_entry_set_filetype(entry, AE_IFREG);
archive_entry_set_perm(entry, static_cast<mode_t>(fs::status(path).permissions()));
archive_write_header(a, entry);
// Convert std::filesystem::perms to mode_t
std::filesystem::perms p = fs::status(path).permissions();
mode_t mode = 0;
if ((p & fs::perms::owner_read) != fs::perms::none) mode |= S_IRUSR;
if ((p & fs::perms::owner_write) != fs::perms::none) mode |= S_IWUSR;
if ((p & fs::perms::owner_exec) != fs::perms::none) mode |= S_IXUSR;
if ((p & fs::perms::group_read) != fs::perms::none) mode |= S_IRGRP;
if ((p & fs::perms::group_write) != fs::perms::none) mode |= S_IWGRP;
if ((p & fs::perms::group_exec) != fs::perms::none) mode |= S_IXGRP;
if ((p & fs::perms::others_read) != fs::perms::none) mode |= S_IROTH;
if ((p & fs::perms::others_write) != fs::perms::none) mode |= S_IWOTH;
if ((p & fs::perms::others_exec) != fs::perms::none) mode |= S_IXOTH;
archive_entry_set_perm(entry, mode);
if (archive_write_header(a, entry) != ARCHIVE_OK) {
archive_entry_free(entry);
throw std::runtime_error("Could not write header for " + relativePath + ": " + archive_error_string(a));
}
// Write file contents
std::ifstream fileStream(path, std::ios::binary);
if (!fileStream) {
archive_entry_free(entry);
throw std::runtime_error("Could not open file " + relativePath + " for reading");
}
std::vector<char> buffer((std::istreambuf_iterator<char>(fileStream)), std::istreambuf_iterator<char>());
archive_write_data(a, buffer.data(), buffer.size());
if (archive_write_data(a, buffer.data(), buffer.size()) < 0) {
archive_entry_free(entry);
throw std::runtime_error("Could not write data for " + relativePath + ": " + archive_error_string(a));
}
archive_entry_free(entry);
}
}
// Finalize and clean up
archive_write_close(a);
if (archive_write_close(a) != ARCHIVE_OK) {
archive_write_free(a);
throw std::runtime_error("Could not close archive: " + std::string(archive_error_string(a)));
}
archive_write_free(a);
std::cout << "[INFO] Tarball created and compressed: " << tarballPath << std::endl;