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Contributing

Thank you for investing your time in contributing to our project! Any contribution you make will be reflected in Chunky; first within our development builds prior to stable release.

Read our Code of Conduct to keep our community approachable and respectable.

In this guide you will get an overview of the contribution workflow from opening an issue, creating a PR, reviewing, and merging the PR.

When contributing to this repository, please consider discussing significant changes you wish to make via an issue or the #tech channel on our Discord server prior to making a change. Correcting spelling or grammar mistakes, or fixing minor bugs are not considered significant. A full rewrite, adding new features, etc. can be considered more significant changes.

New contributor guide

To get an overview of the project, read the README.

Chunky is split into four subprojects:

  • chunky - the core rendering and GUI project
  • lib - common code required by the other projects
  • launcher - the launcher
  • releasetools - tool used for packaging releases

Here are some resources to help you get started with open source contributions:

Getting started

Issues

Create a new issue

If you spot a problem with the docs, search if an issue already exists. If a related issue doesn't exist, you can open a new issue.

Solve an issue

Scan through our existing issues to find one that interests you. You can narrow down the search using labels as filters. If you are not sure where to start we have labelled some issues as good first issues. As a general rule, we don’t assign issues to anyone. If you find an issue to work on, you are welcome to open a PR with a fix. However, we would request that you double-check what PRs are open and whether another contributor is working on an issue already.

Make Changes

Make changes in the UI

Click on the pencil icon at the top right of any text file (code, markdown, etc.) to make small changes such as a typo, sentence fixes, broken links, etc. Please create a pull request for a review.

Make (more significant) changes locally

IntelliJ Community Edition is recommended, get it here

  • You'll want to download JetBrains Toolbox, and download IntelliJ IDEA Community Edition from there
Fork the project to your account

Go to https://github.com/chunky-dev/chunky, click on Fork (usually in the top right)

Clone the project.

with IntelliJ: File -> New -> Project from Version Control

  • In the url put https://github.com/GITHUB_USERNAME/chunky
  • You can also select a location to clone to here.

with GitHub desktop: Clone a repository -> select URL, paste https://github.com/GITHUB_USERNAME/chunky

with CLI: git clone git@github.com:GITHUB_USERNAME/chunky.git or (outdated) git clone https://github.com/GITHUB_USERNAME/chunky

Open the Project

From inside IntelliJ (if you cloned with IntelliJ you can likely skip this step)

  • File -> Open -> Select the first build.gradle file within the cloned folder (You may also select the folder containing the build.gradle file)

You may have to wait some time while IntelliJ indexes the project, and imports it. (The little loading bar in the bottom right)

Select the correct JDK version to use to build the project

Java 17 SDK (e.g. openjdk-17-jdk on Ubuntu):

  • File -> Project Structure -> Project (should be the default)
    • If IntelliJ detected your install: select the SDK dropdown, select a Java 17 JDK install
    • If not: click Edit, then the little + at the top, Add JDK and find your Java 17 JDK install location (select the main jdk folder).
      • Go back to the Project tab, and select the newly added jdk.

Add se.llbit.util.annotation.Nullable and se.llbit.util.annotation.NotNull to the compiler options of Intellij for IntelliSense recommendations

  • File -> Settings -> Build, Execution, Deployment -> Compiler (select it, not the dropdown)
    • Click Configure annotations...
      • In the Nullable tab click the little + to add Nullable (se.llbit.util.annotation)
      • In the NotNull tab click the little + to add NotNull (se.llbit.util.annotation.)
      • Intellij must be restarted to update IntelliSense
Create a new branch for your change

In the bottom right of IntelliJ, there is a New Branch button, by default it will say master, select it, at the top select New Branch, and name it after what you're intending to fix. (ideally something very short, no more than a few words). eg: fix_scene_tab_typo or fix-scene-tab-typo is fine.

  • Make sure the Checkout branch box is checked when creating a new branch (to actually change to it once it's created)
Make your change

Some useful IntelliJ keybindings to help you navigate around:

  • Ctrl + N, Find a file (class) by name
Commit your changes

After making your changes, select the Commit button (looks like a green tick) in the top right Select all the changes you want to make, and add a description of what you changed.

Testing

Prior to making a Pull Request please test your changes. Within IntelliJ, you can build and run Chunky by clicking on the green arrow next to chunky\src\java\se.llbit\chunky\main\Chunky.java:line64 assuming you have got IntelliJ setup correctly. At the time of writing, Chunky's gradlew version is 7.4.

To build Chunky externally, run the gradlew script in the project root directory. Gradle is set-up with a few main tasks:

  • build - Build Chunky, documentation, and run tests.
  • release - Build and save files ready for a release to a Chunky update site. Outputs to build/release
  • buildReleaseJar - Build an installer JAR. Outputs to build/installer
  • docs - Build the documentation. Outputs to build/docs
  • install - Create a publishable maven repository for Chunky core. Outputs to build/maven
  • clean - Cleans the project. Removes old builds.

A custom version can be specified with -PnewVersion="<version>". A custom prerelease tag can be specified with -PprereleaseTag="<tag>". The default version is in the format: {major}.{minor}.{patch}-{tag (DEV)}.{commits since last tag}.g{git hash of commit}

Pull Request

When you're finished with the changes, create a pull request, also known as a PR.

  • Provide a short but descriptive name and for more complex changes an extended description.
  • Don't forget to link PR to issue if you are solving one.
  • Enable the checkbox to allow maintainer edits so the branch can be updated for a merge. Once you submit your PR, a team member will review your proposal. We may ask questions or request for additional information.
  • We may ask for changes to be made before a PR can be merged, either using suggested changes or pull request comments. You can apply suggested changes directly through the UI. You can make any other changes in your fork, then commit them to your branch.
  • As you update your PR and apply changes, mark each conversation as resolved.
  • If you run into any merge issues, checkout this git tutorial to help you resolve merge conflicts and other issues.

If you get stuck at any point along your PR journey, do not hesitate to ask for help or opinions on Discord or in the PR's discussion. We appreciate your contribution and want it to be merged as much as you do. 😉

Your PR is merged!

Congratulations 🎉🎉 The Chunky team thanks you ✨.

Once your PR is merged, your contributions will be publicly available in the next Chunky snapshot and eventually ship in a stable release.

Attribution

This Contributing guide is adapted from the GitHub docs contributing guide.