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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, networkException <networkexception@serenityos.org>
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/DeprecatedString.h>
#include <AK/Forward.h>
#include <AK/HashMap.h>
#include <AK/OwnPtr.h>
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <AK/Vector.h>
#include <LibCore/File.h>
namespace Core {
class ConfigFile : public RefCounted<ConfigFile> {
public:
enum class AllowWriting {
Yes,
No,
};
static ErrorOr<NonnullRefPtr<ConfigFile>> open_for_lib(DeprecatedString const& lib_name, AllowWriting = AllowWriting::No);
static ErrorOr<NonnullRefPtr<ConfigFile>> open_for_app(DeprecatedString const& app_name, AllowWriting = AllowWriting::No);
static ErrorOr<NonnullRefPtr<ConfigFile>> open_for_system(DeprecatedString const& app_name, AllowWriting = AllowWriting::No);
static ErrorOr<NonnullRefPtr<ConfigFile>> open(DeprecatedString const& filename, AllowWriting = AllowWriting::No);
static ErrorOr<NonnullRefPtr<ConfigFile>> open(DeprecatedString const& filename, int fd);
static ErrorOr<NonnullRefPtr<ConfigFile>> open(DeprecatedString const& filename, NonnullOwnPtr<Core::File>);
~ConfigFile();
bool has_group(DeprecatedString const&) const;
bool has_key(DeprecatedString const& group, DeprecatedString const& key) const;
Vector<DeprecatedString> groups() const;
Vector<DeprecatedString> keys(DeprecatedString const& group) const;
size_t num_groups() const { return m_groups.size(); }
DeprecatedString read_entry(DeprecatedString const& group, DeprecatedString const& key, DeprecatedString const& default_value = DeprecatedString()) const;
bool read_bool_entry(DeprecatedString const& group, DeprecatedString const& key, bool default_value = false) const;
template<Integral T = int>
T read_num_entry(DeprecatedString const& group, DeprecatedString const& key, T default_value = 0) const
{
if (!has_key(group, key))
return default_value;
if constexpr (IsSigned<T>)
return read_entry(group, key).to_int<T>().value_or(default_value);
else
return read_entry(group, key).to_uint<T>().value_or(default_value);
}
void write_entry(DeprecatedString const& group, DeprecatedString const& key, DeprecatedString const& value);
void write_bool_entry(DeprecatedString const& group, DeprecatedString const& key, bool value);
template<Integral T = int>
void write_num_entry(DeprecatedString const& group, DeprecatedString const& key, T value)
{
write_entry(group, key, DeprecatedString::number(value));
}
void dump() const;
bool is_dirty() const { return m_dirty; }
ErrorOr<void> sync();
void add_group(DeprecatedString const& group);
void remove_group(DeprecatedString const& group);
void remove_entry(DeprecatedString const& group, DeprecatedString const& key);
DeprecatedString const& filename() const { return m_filename; }
private:
ConfigFile(DeprecatedString const& filename, OwnPtr<InputBufferedFile> open_file);
ErrorOr<void> reparse();
DeprecatedString m_filename;
OwnPtr<InputBufferedFile> m_file;
HashMap<DeprecatedString, HashMap<DeprecatedString, DeprecatedString>> m_groups;
bool m_dirty { false };
};
}
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