ladybird/Userland/Utilities/gml-format.cpp
Tim Schumacher ed4c2f2f8e LibCore: Rename Stream::read_all to read_until_eof
This generally seems like a better name, especially if we somehow also
need a better name for "read the entire buffer, but not the entire file"
somewhere down the line.
2022-12-12 14:16:42 +01:00

70 lines
2.1 KiB
C++

/*
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/Stream.h>
#include <LibCore/System.h>
#include <LibGUI/GML/Formatter.h>
#include <LibMain/Main.h>
static ErrorOr<bool> format_file(StringView path, bool inplace)
{
auto read_from_stdin = path == "-";
auto open_mode = (inplace && !read_from_stdin) ? Core::Stream::OpenMode::ReadWrite : Core::Stream::OpenMode::Read;
auto file = TRY(Core::Stream::File::open_file_or_standard_stream(path, open_mode));
auto contents = TRY(file->read_until_eof());
auto formatted_gml_or_error = GUI::GML::format_gml(contents);
if (formatted_gml_or_error.is_error()) {
warnln("Failed to parse GML: {}", formatted_gml_or_error.error());
return false;
}
auto formatted_gml = formatted_gml_or_error.release_value();
if (inplace && !read_from_stdin) {
if (formatted_gml == contents)
return true;
TRY(file->seek(0, Core::Stream::SeekMode::SetPosition));
TRY(file->truncate(0));
TRY(file->write(formatted_gml.bytes()));
} else {
out("{}", formatted_gml);
}
return formatted_gml == contents;
}
ErrorOr<int> serenity_main(Main::Arguments args)
{
TRY(Core::System::pledge("stdio rpath wpath cpath"));
bool inplace = false;
Vector<DeprecatedString> files;
Core::ArgsParser args_parser;
args_parser.set_general_help("Format GML files.");
args_parser.add_option(inplace, "Write formatted contents back to file rather than standard output", "inplace", 'i');
args_parser.add_positional_argument(files, "File(s) to process", "path", Core::ArgsParser::Required::No);
args_parser.parse(args);
if (!inplace)
TRY(Core::System::pledge("stdio rpath"));
if (files.is_empty())
files.append("-");
auto formatting_changed = false;
for (auto& file : files) {
if (!TRY(format_file(file, inplace)))
formatting_changed = true;
}
if (formatting_changed) {
dbgln("Some GML formatting issues were encountered.");
return 1;
}
return 0;
}