Plume Config is Deprecated. Consider Using Pierced Instead.

→ Modrinth
Based on TOML

Plume Config

Plume Config is a lightweight configuration library made for Minecraft Mods, based on Tom's Obvious Minimal Language TOML.

Implementation

TL;DR

build.gradle

repositories {
    maven { url = "https://api.modrinth.com/maven" }
}

dependencies {
    modImplementation include("maven.modrinth:plumeconfig:xxx")
}

Remember to replace xxx above to the latest version id of Plume Config(starts with v). You can check the versions on Modrinth, or just copy the latest release tag on GitHub, they are the same.

Demonstration

example.toml

# This is a comment
# at the top of the file

# An integer
integer = 1 # Int
# A boolean
bool = false

[abc]
# Multi-line
# comment
s = "string" # String | A String Comment
d = 1.0

[def]
# A color
# Which is under supported
color = 0xff000000

Usage

An example class is available: Example.java.

When you're readily implemented, you'll find it's easy to use, thanks to all the annotations and instance-based methods.

Instance

First of all, declare a ConfigFile instance:

public class MyModInitializer {
    public static final ConfigFile CONFIG = new ConfigFile("my_modid", "my_config.toml"); // There are other constructors available, see javadoc for more
}

Then, design your own config class:

public class MyConfig {
    // Keep reading...
}

@Option

In the class, when you want to declare a field as an option, just use the annotation @Option:

@Option // You can write them before the field, or...
public String s = "string";

private static @Option int integer = 1; // ...after the modifier
// An option field can be either public or private, but not protected
// An option field can also be final, but it's not recommended and the value won't change

s = "string"
integer = 1

The default key of an option is the field name, in the rest of the document you will know the way to change the key.

The annotation @Option is also used to add additional information to the option, for example, a different key:

@Option(key = "different_key")
public String s = "string";

different_key = "string"

You cannot use duplicate keys in the same file, Plume Config will not check that, but may crash or cause unexpected behavior.

In special cases, multi-line string contents will be in multi-line format:

@Option
public String s = "Multi-\nline\\\nString!"

s = """
Multi
line\
String!"""

You can also add a name and a comment to an option:

@Option(name = "String", comment = "A String Comment")
public String s = "string";

@Option(key = "integer", name = "Integer")
private static int i = 1;

s = "string" # String | A String Comment
integer = 1 # Integer

@Comment

Beside the @Option annotation, you can also use the @Comment annotation to append comments to fields:

@Comment("Commented")
@Comment("By two")
public @Option String s = "String";

@Comment(value = "Also commented", newLine = LineBreak.BEFORE)
private @Option static int i = 12345;

s = "String"
# Commented
# By two
i = 12345

# Also commented

@Comment annotations only work when the target field is already annotated by @Option.

It is fine to use as many @Comment annotations as you want, each will take a line.

The enum class LineBreak can be used to define the behaviour of the line breaks.

The @Comment annotations can not only be used on fields, but also be used before class definations.

@Comment("This is a comment")
@Comment(value = "at the top of the file", newLine = LineBreak.AFTER)
public class MyConfig {
	//...
}

# This is a comment
# at the top of the file

@Category

One of the main features of TOML is categories(work as dotted keys), and Plume Config also supports it by using the @Category annotation:

public @Option String uncat="Uncategorized";

@Comment("Categorized comment")
@Category("abc")
public @Option String cat="Categorized";

uncat = "Uncategorized"

[abc]
cat = "Categorized"
# Categorized comment

The order of the fields is not important, Plume Config will sort them automatically by categories.

That's how it works. Now write some configs into your class:

import java.awt.*;

@Comment("This file controls your player behaviour in game", newLine = LineBreak.AFTER)
public class MyConfig {
	@Option(key = "player_name", name = "Player Name", comment = "Your name in the game")
	public String playerName = "Sigma";

	@Option(comment = "Health bar length")
	public double health = 1.0;

	@Comment("Don't change this unless in development environment")
	@Category("misc")
	@Option(comment = "Your only identity")
	public int identity = Color.BLACK;
	
	@Option(key = "streaming_switch", comment = "Toggle streaming mode")
	public boolean streamingSwitch = false;
}

Run your mod as you load your config instance:

public class MyModInitializer implements ModInitializer {
    public static final ConfigFile CONFIG = new ConfigFile("my_modid", "my_config.toml");
    public static final MyConfig CONFIG_INSTANCE = new MyConfig();

    @Override
    public void onInitialize() {
        // Don't worry about nonexistent files, Plume Config will create them.
        CONFIG_INSTANCE = CONFIG.load(MyConfig.class); // Insert your config class to let Plume Config know what to load.
    }
}

Your config file(run/config/my_modid/my_config.toml) will look like this:

# This file controls your player behaviour in game

player_name = "Sigma" # Player Name | Your name in the game
health = 1.0 # Health bar length
streaming_switch = false # Toggle streaming mode

[misc]
identity = 0xff000000 # Your only identity in the map
# Don't change this unless in development environment

In your code, make sure everytime you load your mod, you read your config first.

Now, just access the fields as usual:

public class MyModInitializer implements ModInitializer {
    public static final ConfigFile CONFIG = new ConfigFile("my_modid", "my_config.toml");
    public static final MyConfig CONFIG_INSTANCE = new MyConfig();

    @Override
    public void onInitialize() {
        CONFIG_INSTANCE = CONFIG.load(MyConfig.class);
		
	// They are good now
        System.out.println(CONFIG_INSTANCE.playerName);
        System.out.println(CONFIG_INSTANCE.health);
        System.out.println(CONFIG_INSTANCE.identity);
        System.out.println(CONFIG_INSTANCE.streamingSwitch);

	CONFIG_INSTANCE.playerName = "Lambda";
	CONFIG_INSTANCE.identity = Color.RED;

	// Don't forget to save your config after changes!
        CONFIG.save(CONFIG_INSTANCE); // Now don't insert MyConfig.class, instead, use the config instance.
    }
}

Pretty cool, right? Plume Config may not supporting all toml features now, but we are always making everything better. Just watch our project if you are interested in the progress!

License

Plume Config is licensed under the GNU Public License.