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gunzip: Port to LibMain

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Lucas CHOLLET 2022-01-13 21:24:28 +01:00 committed by Idan Horowitz
parent c2e7acc8bb
commit 80a1ab3487
Notes: sideshowbarker 2024-07-17 20:54:28 +09:00 
Author: https://github.com/LucasChollet
Commit: https://github.com/SerenityOS/serenity/commit/80a1ab34876
Pull-request: https://github.com/SerenityOS/serenity/pull/11880
Reviewed-by: https://github.com/IdanHo
Reviewed-by: https://github.com/mjz19910
2 changed files with 12 additions and 23 deletions
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2
Userland/Utilities/CMakeLists.txt
View File

@ -103,7 +103,7 @@ target_link_libraries(gml-format LibGUI LibMain)
target_link_libraries(grep LibRegex LibMain)
target_link_libraries(gron LibMain)
target_link_libraries(groups LibMain)
target_link_libraries(gunzip LibCompress)
target_link_libraries(gunzip LibCompress LibMain)
target_link_libraries(gzip LibCompress LibMain)
target_link_libraries(id LibMain)
target_link_libraries(ini LibMain)

33
Userland/Utilities/gunzip.cpp
View File

@ -7,6 +7,8 @@
#include <LibCompress/Gzip.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/FileStream.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <unistd.h>
static bool decompress_file(Buffered<Core::InputFileStream>& input_stream, Buffered<Core::OutputFileStream>& output_stream)
@ -23,7 +25,7 @@ static bool decompress_file(Buffered<Core::InputFileStream>& input_stream, Buffe
return !gzip_stream.handle_any_error();
}
int main(int argc, char** argv)
ErrorOr<int> serenity_main(Main::Arguments args)
{
Vector<StringView> filenames;
bool keep_input_files { false };
@ -33,7 +35,7 @@ int main(int argc, char** argv)
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);
args_parser.parse(args);
if (write_to_stdout)
keep_input_files = true;
@ -45,37 +47,24 @@ int main(int argc, char** argv)
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 input_stream_result = TRY(Core::InputFileStream::open_buffered(input_filename));
auto success = false;
if (write_to_stdout) {
auto stdout = Core::OutputFileStream::stdout_buffered();
success = decompress_file(input_stream_result.value(), stdout);
success = decompress_file(input_stream_result, 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());
auto output_stream_result = TRY(Core::OutputFileStream::open_buffered(output_filename));
success = decompress_file(input_stream_result, output_stream_result);
}
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;
}
}
if (!keep_input_files)
TRY(Core::System::unlink(input_filename));
}
return 0;
}