GDScript Docs Maker

Docs Maker is a set of tools to convert documentation you write inside your code to an online or offline code reference in the markdown format.

If you make plugins or a framework for Godot, GDScript Docs Maker will help you save a lot of time documenting your code.

It creates documents following Godot's built-in class reference. You can see an example with our Godot Steering Toolkit documentation

Table of Contents

• Installing
• Getting Started
  • Writing your code reference
  • Generating the markdown files
• Hugo output
• The manual way
  • Converting JSON

Note: This program requires Godot 3.2+ and Python 3.7+ to work.

Installing

You can install the GDScript Docs Maker python package with pip:

# On Linux and MacOS:
python3 -m pip install gdscript_docs_maker

# On Windows, if you installed Python 3.7+, you can use:
python -m pip install gdscript_docs_maker

Although to use the shell script that simplifies creating the reference, generate_reference, you need to clone this repository. More on that below.

Getting Started

In this section, you will learn to use the program to generate a code reference quickly.

This involves two steps. You need to:

1. Write docstrings inside your GDScript code.
2. Use one of the shell programs that ships with this add-on.

Writing your code reference

Docstring or doc-comments in GDScript don't have any special markup.

You can document classes, properties, and functions with comment blocks placed on the line before their definition:

# A linear and angular amount of acceleration.
class_name GSTTargetAcceleration


# Linear acceleration
var linear: = Vector3.ZERO
# Angular acceleration
var angular: = 0.0


# Resets the accelerations to zero
func reset() -> void:
	linear = Vector3.ZERO
	angular = 0.0

If you need long docstrings, you can use multiple commented lines:

# A specialized steering agent that updates itself every frame so the user does
# not have to using a KinematicBody2D
# category: Specialized agents
extends GSAISpecializedAgent
class_name GSAIKinematicBody2DAgent

Generating the markdown files

We wrote two shell scripts to automate the steps in generating a code reference: ./generate_reference for Linux or MacOS, and ./generate_reference.bat for Windows.

Use either of them to quickly generate your code reference:

Generate a code reference from GDScript
Usage:
generate_reference $project_directory [options]

Required arguments:

$project_directory -- path to your Godot project directory.
This directory or one of its subdirectories should contain a
project.godot file.

Flags:

-h/--help             -- Display this help message.
-o/--output-directory -- directory path to output the documentation into.
-f/--format           -- Either `markdown` or `hugo`. If `hugo`, the output document includes a TOML front-matter at the top. Default: `markdown`.
-a/--author           -- If --format is `hugo`, controls the author property in the TOML front-matter.

To use them:

• You need to clone this repository or download the source code from a stable release.
• You need godot to be available on the system PATH variable.

Hugo output

You can output markdown files for hugo, the static website engine.

To do so, call GDScript docs maker with the --format hugo option. You can use two extra flags with this:

--date YYYY-MM-DD, the date in iso format, if you want the documents to have a date other than today. Default: datetime.date.today()
--author author_id, the id of the author on your hugo website, to assign an the author for the documents. Default: ""

Here's how I generate the Godot Steering Toolkit's documentation. This command outputs the class reference straight into the website:

python3 -m gdscript_docs_maker $HOME/Repositories/godot-steering-toolkit/project/reference.json --format hugo --author razoric --path $HOME/Repositories/website/content/docs/godot-steering-toolkit/reference/classes/

The manual way

If you want to generate the JSON and convert it manually, there are three steps involved:

1. Copying the GDScript files ./godot-scripts/Collector.gd and ./godot-scripts/ReferenceCollectorCLI.gd or ./godot-scripts/ReferenceCollectorCLI.gd to your Godot 3.2 project.
2. Running the GDScript code with Godot, either from the editor (ReferenceCollector.gd) or by calling Godot from the command line (ReferenceCollectorCLI.gd).
3. Running gdscript_docs_maker on the reference.json file that Godot generated in the previous step.

Note: to parse and collect data from GDScript code, we rely on the GDScript language server that's new in Godot 3.2.

Converting JSON

Call the gdscript-docs-maker package directly using the python -m option:

Usage: gdscript_docs_maker [-h] [-p PATH] [-v] [--dry-run] files [files ...]

Merges or converts json data dumped by Godot's GDScript language server to
create a code reference.

positional arguments:
  files                 A list of paths to JSON files.

optional arguments:
  -h, --help            Show this help message and exit.
  -p PATH, --path PATH  Path to the output directory.
  -v, --verbose         Set the verbosity level. For example, -vv sets the
                        verbosity level to 2. Default: 0.
  --dry-run             Run the script without creating
                        files and folders. For debugging purposes.

The program takes a list of JSON files. For example, we generate the code reference of our AI framework Godot Steering Toolkit like so with the shell:

python -m gdscript-docs-maker ~/Repositories/godot-steering-toolkit/src/reference.json