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Userland: Introduce ConfigServer and LibConfig

ConfigServer is an IPC service that provides access to application
configuration and settings. The idea is to replace all uses of
Core::ConfigFile with IPC requests to ConfigServer.

This first cut of the API is pretty similar to Core::ConfigFile.

The old:

    auto config = Core::ConfigFile::open_for_app("App");
    auto value = config->read_entry("Group", "Key");

The new:

    auto value = Config::read_string("App", "Group", "Key");

ConfigServer uses the ~/.config directory as its backing store
and all the files remain human-editable. :^)
This commit is contained in:
Andreas Kling 2021-08-25 19:35:19 +02:00
parent c97f7ea23b
commit bdcd0abf9d
12 changed files with 319 additions and 0 deletions

View file

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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibConfig/Client.h>
namespace Config {
static RefPtr<Client> s_the = nullptr;
Client& Client::the()
{
if (!s_the || !s_the->is_open())
s_the = Client::construct();
return *s_the;
}
String Client::read_string(StringView domain, StringView group, StringView key, StringView fallback)
{
return read_string_value(domain, group, key).value_or(fallback);
}
i32 Client::read_i32(StringView domain, StringView group, StringView key, i32 fallback)
{
return read_i32_value(domain, group, key).value_or(fallback);
}
bool Client::read_bool(StringView domain, StringView group, StringView key, bool fallback)
{
return read_bool_value(domain, group, key).value_or(fallback);
}
void Client::write_string(StringView domain, StringView group, StringView key, StringView value)
{
async_write_string_value(domain, group, key, value);
}
void Client::write_i32(StringView domain, StringView group, StringView key, i32 value)
{
async_write_i32_value(domain, group, key, value);
}
void Client::write_bool(StringView domain, StringView group, StringView key, bool value)
{
async_write_bool_value(domain, group, key, value);
}
}