rojo-rbx/rojo

Sync rbxmx-format Roblox models bi-directionally between the filesystem and Roblox Studio
Package libraries and plugins into rbxmx files from the command line

Installation

Rojo has two components:

The command line interface (CLI), written in Rust
The Roblox Studio plugin, written in Lua

To install the command line tool, there are two options:

Cargo, if you have Rust installed
- Use cargo install rojo -- Rojo will be available with the rojo command
Download a pre-built Windows binary from the GitHub releases page

Usage

For more help, use rojo help.

New Project

Just create a new folder and tell Rojo to initialize it!

mkdir my-new-project
cd my-new-project

rojo init

Rojo will create an empty project in the directory.

The default project looks like this:

{
  "name": "my-new-project",
  "servePort": 8000,
  "partitions": {}
}

Start Dev Server

To create a server that allows the Rojo Studio plugin to access your project, use:

rojo serve

The tool will tell you whether it found an existing project. You should then be able to connect and use the project from within Roblox Studio!

Migrating an Existing Roblox Project

Bi-directional script syncing is on the roadmap for Rojo this year, but isn't implemented.

In the mean-time, manually migrating scripts is probably the best route forward.

Syncing into Roblox

In order to sync code into Roblox, you'll need toadd one or more partitions to your configuration. A partition tells Rojo how to map directories on your filesystem to Roblox objects.

Each entry in the partitions map has a unique name, a filesystem path, and the full name of the Roblox object to sync into.

For example, if you want to map your src directory to an object named My Cool Game in ReplicatedStorage, you could use this configuration:

{
  "name": "rojo",
  "servePort": 8000,
  "partitions": {
    "game": {
      "path": "src",
      "target": "ReplicatedStorage.My Cool Game"
    }
  }
}

The path parameter is relative to the project file.

The target parameter is a path to a Roblox object to link the partition to, starting at game. If any objects don't exist along the way, Rojo will try to create them.

Any objects in a partition may be wiped away by Rojo after syncing! If this is not desired, use multiple, smaller partitions.

Run rojo serve in the directory containing this project, then press the "Sync In" or "Toggle Polling" buttons in the Roblox Studio plugin to sync into your game.

Sync Details

The structure of files and diectories on the filesystem are preserved when syncing into game.

Creation of Roblox instances follows a simple set of rules. The first rule that matches the file name is chosen:

File Name	Instance Type	Notes
`*.server.lua`	`Script`	`Source` will contain the file's contents
`*.client.lua`	`LocalScript`	`Source` will contain the file's contents
`*.lua`	`ModuleScript`	`Source` will contain the file's contents
`*.model.json`	Varies	See the example below
`*`	`StringValue`	`Value` will contain the file's contents

Any directories on the filesystem will turn into Folder objects.

Any directory containing one of these files will instead be a ModuleScript, Script, LocalScript containing the directory's contents:

init.lua
init.server.lua
init.client.lua

For example, this file tree:

my-game
- init.client.lua
- foo.lua

Will turn into these instances in Roblox:

my-game (LocalScript with source from my-game/init.client.lua)
- foo (ModuleScript with source from my-game/foo.lua)

*.model.json files are intended as a simple way to represent non-script Roblox instances on the filesystem until rbxmx and rbxlx support is implemented in Rojo.

JSON Model files are fairly strict, with every property being required. They generally look like this:

{
  "Name": "hello",
  "ClassName": "Model",
  "Children": [
    {
      "Name": "Some Part",
      "ClassName": "Part",
      "Children": [],
      "Properties": {}
    },
    {
      "Name": "Some StringValue",
      "ClassName": "StringValue",
      "Children": [],
      "Properties": {
        "Value": {
          "Type": "String",
          "Value": "Hello, world!"
        }
      }
    }
  ],
  "Properties": {}
}

Inspiration

There are lots of other tools that sync scripts into Roblox or provide other tools for working with Roblox places.

Here are a few, if you're looking for alternatives or supplements to Rojo:

I also have a couple tools that Rojo intends to replace:

rbxfs, which has been deprecated by Rojo
rbxpacker, which is still useful

Contributing

Pull requests are welcome!

The master branch of both repositories have tests running on Travis for every commit and pull request. The test suite on master should always pass!

The Rojo and Rojo Plugin repositories should stay in sync with eachother, so that the current master of each repository can be used together.

License

Rojo is available under the terms of the MIT license. See LICENSE.md for details.