/* * Copyright (c) 2020, the SerenityOS developers. * * SPDX-License-Identifier: BSD-2-Clause */ #include #include #include #include static bool decompress_file(Buffered& input_stream, Buffered& output_stream) { auto gzip_stream = Compress::GzipDecompressor { input_stream }; u8 buffer[4096]; while (!gzip_stream.has_any_error() && !gzip_stream.unreliable_eof()) { const auto nread = gzip_stream.read({ buffer, sizeof(buffer) }); output_stream.write_or_error({ buffer, nread }); } return !gzip_stream.handle_any_error(); } int main(int argc, char** argv) { Vector filenames; bool keep_input_files { false }; bool write_to_stdout { false }; Core::ArgsParser args_parser; args_parser.add_option(keep_input_files, "Keep (don't delete) input files", "keep", 'k'); args_parser.add_option(write_to_stdout, "Write to stdout, keep original files unchanged", "stdout", 'c'); args_parser.add_positional_argument(filenames, "File to decompress", "FILE"); args_parser.parse(argc, argv); if (write_to_stdout) keep_input_files = true; for (auto filename : filenames) { if (!filename.ends_with(".gz")) filename = String::formatted("{}.gz", filename); const auto input_filename = filename; const auto output_filename = filename.substring_view(0, filename.length() - 3); auto input_stream_result = Core::InputFileStream::open_buffered(input_filename); if (input_stream_result.is_error()) { warnln("Failed opening input file for reading: {}", input_stream_result.error()); return 1; } auto success = false; if (write_to_stdout) { auto stdout = Core::OutputFileStream::stdout_buffered(); success = decompress_file(input_stream_result.value(), stdout); } else { auto output_stream_result = Core::OutputFileStream::open_buffered(output_filename); if (output_stream_result.is_error()) { warnln("Failed opening output file for writing: {}", output_stream_result.error()); return 1; } success = decompress_file(input_stream_result.value(), output_stream_result.value()); } if (!success) { warnln("Failed gzip decompressing input file"); return 1; } if (!keep_input_files) { const auto retval = unlink(String { input_filename }.characters()); if (retval != 0) { warnln("Failed removing input file"); return 1; } } } return 0; }