mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-20 09:49:15 +03:00
39369f1da6
There are more places we can use these, I just picked some that felt like they improved the code.
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2020, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibCompress/Gzip.h>
|
|
#include <LibCore/ArgsParser.h>
|
|
#include <LibCore/FileStream.h>
|
|
#include <unistd.h>
|
|
|
|
static bool decompress_file(Buffered<Core::InputFileStream>& input_stream, Buffered<Core::OutputFileStream>& 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<String> 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;
|
|
}
|