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/*
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibCore/System.h>
#include <LibGUI/GML/Formatter.h>
#include <LibMain/Main.h>
ErrorOr<bool> format_file(StringView, bool);
ErrorOr<bool> format_file(StringView path, bool inplace)
{
auto read_from_stdin = path == "-";
RefPtr<Core::File> file;
if (read_from_stdin) {
file = Core::File::standard_input();
} else {
auto open_mode = inplace ? Core::OpenMode::ReadWrite : Core::OpenMode::ReadOnly;
file = TRY(Core::File::open(path, open_mode));
}
auto contents = file->read_all();
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;
if (!file->seek(0) || !file->truncate(0)) {
warnln("Could not truncate {}: {}", path, file->error_string());
return false;
}
if (!file->write(formatted_gml)) {
warnln("Could not write to {}: {}", path, file->error_string());
return false;
}
} 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<String> 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;
}
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