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/*
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/LexicalPath.h>
#include <LibArchive/Zip.h>
#include <LibCompress/Deflate.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/DirIterator.h>
#include <LibCore/File.h>
#include <LibCore/FileStream.h>
#include <LibCore/System.h>
#include <LibCrypto/Checksum/CRC32.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
StringView zip_path;
Vector<StringView> source_paths;
bool recurse = false;
bool force = false;
Core::ArgsParser args_parser;
args_parser.add_positional_argument(zip_path, "Zip file path", "zipfile", Core::ArgsParser::Required::Yes);
args_parser.add_positional_argument(source_paths, "Input files to be archived", "files", Core::ArgsParser::Required::Yes);
args_parser.add_option(recurse, "Travel the directory structure recursively", "recurse-paths", 'r');
args_parser.add_option(force, "Overwrite existing zip file", "force", 'f');
args_parser.parse(arguments);
TRY(Core::System::pledge("stdio rpath wpath cpath"));
auto cwd = TRY(Core::System::getcwd());
TRY(Core::System::unveil(LexicalPath::absolute_path(cwd, zip_path), "wc"sv));
for (auto const& source_path : source_paths) {
TRY(Core::System::unveil(LexicalPath::absolute_path(cwd, source_path), "r"sv));
}
TRY(Core::System::unveil(nullptr, nullptr));
String zip_file_path { zip_path };
if (Core::File::exists(zip_file_path)) {
if (force) {
outln("{} already exists, overwriting...", zip_file_path);
} else {
warnln("{} already exists, aborting!", zip_file_path);
return 1;
}
}
auto file_stream = TRY(Core::OutputFileStream::open(zip_file_path));
outln("Archive: {}", zip_file_path);
Archive::ZipOutputStream zip_stream { file_stream };
auto add_file = [&](String path) {
auto file = Core::File::construct(path);
if (!file->open(Core::OpenMode::ReadOnly)) {
warnln("Failed to open {}: {}", path, file->error_string());
return;
}
auto canonicalized_path = LexicalPath::canonicalized_path(path);
auto file_buffer = file->read_all();
Archive::ZipMember member {};
member.name = canonicalized_path;
auto deflate_buffer = Compress::DeflateCompressor::compress_all(file_buffer);
if (deflate_buffer.has_value() && deflate_buffer.value().size() < file_buffer.size()) {
member.compressed_data = deflate_buffer.value().bytes();
member.compression_method = Archive::ZipCompressionMethod::Deflate;
auto compression_ratio = (double)deflate_buffer.value().size() / file_buffer.size();
outln(" adding: {} (deflated {}%)", canonicalized_path, (int)(compression_ratio * 100));
} else {
member.compressed_data = file_buffer.bytes();
member.compression_method = Archive::ZipCompressionMethod::Store;
outln(" adding: {} (stored 0%)", canonicalized_path);
}
member.uncompressed_size = file_buffer.size();
Crypto::Checksum::CRC32 checksum { file_buffer.bytes() };
member.crc32 = checksum.digest();
member.is_directory = false;
zip_stream.add_member(member);
};
auto add_directory = [&](String path, auto handle_directory) -> void {
auto canonicalized_path = String::formatted("{}/", LexicalPath::canonicalized_path(path));
Archive::ZipMember member {};
member.name = canonicalized_path;
member.compressed_data = {};
member.compression_method = Archive::ZipCompressionMethod::Store;
member.uncompressed_size = 0;
member.crc32 = 0;
member.is_directory = true;
zip_stream.add_member(member);
outln(" adding: {} (stored 0%)", canonicalized_path);
if (!recurse)
return;
Core::DirIterator it(path, Core::DirIterator::Flags::SkipParentAndBaseDir);
while (it.has_next()) {
auto child_path = it.next_full_path();
if (Core::File::is_link(child_path))
return;
if (!Core::File::is_directory(child_path))
add_file(child_path);
else
handle_directory(child_path, handle_directory);
}
};
for (auto const& source_path : source_paths) {
if (Core::File::is_directory(source_path)) {
add_directory(source_path, add_directory);
} else {
add_file(source_path);
}
}
zip_stream.finish();
return 0;
}
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