[WIP] Zipper to download artists/releases, ref #37

src/tools/CMakeLists.txt

@@ -1,5 +1,6 @@
 
 add_subdirectory(metadata)
 add_subdirectory(recommendation)
+add_subdirectory(zipper)
 
 

src/tools/zipper/CMakeLists.txt

@@ -0,0 +1,9 @@
+
+add_executable(lms-zipper
+	LmsZipper.cpp
+	)
+
+target_link_libraries(lms-zipper PRIVATE
+	lmsutils
+	)
+

src/tools/zipper/LmsZipper.cpp

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2020 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <unistd.h>
+#include <fstream>
+#include <iostream>
+
+#include "utils/Service.hpp"
+#include "utils/StreamLogger.hpp"
+#include "utils/Zipper.hpp"
+
+int main(int argc, char* argv[])
+{
+	// log to stdout
+	Service<Logger> logger {std::make_unique<StreamLogger>(std::cout)};
+
+	if (argc < 2)
+	{
+		std::cerr << "Usage: <archive> <file> [...]" << std::endl;
+		return EXIT_FAILURE;
+	}
+
+	std::filesystem::path zipPath {argv[1]};
+
+	std::map<std::string, std::filesystem::path> files;
+	for (int i {2}; i < argc; ++i)
+		files.emplace(argv[i], argv[i]);
+
+
+	std::cout << "Compressing " << files.size() << " files..." << std::endl;
+
+	using namespace Zip;
+
+	std::ofstream ofs {zipPath.string().c_str(), std::ios_base::binary};
+	if (!ofs)
+	{
+		std::cerr << "Cannot open file '" << zipPath.string() << "' for writing";
+		return EXIT_FAILURE;
+	}
+
+	Zipper zipper {files, Zipper::CompressionMethod::NoCompression};
+
+	while (!zipper.isComplete())
+	{
+		std::array<std::byte, 65536> buffer;
+
+		std::cout << "Call" << std::endl;
+		std::size_t nbWrittenBytes {zipper.writeSome(buffer.data(), buffer.size())};
+		std::cout << "nbWrittenBytes = " << nbWrittenBytes << std::endl;
+
+		ofs.write(reinterpret_cast<const char*>(buffer.data()), nbWrittenBytes);
+	}
+
+	return EXIT_SUCCESS;
+}