LinuxUnrealBuildTool

Linux Unreal Build Tool is a work in progress aimed at enhancing the Unreal Engine development experience on Linux, specifically integrated with Neovim. The plugin offers a simple yet powerful set of commands to streamline common tasks:

Features:

Project Tasks

• Clean: Remove previous build artifacts to ensure a fresh start.
• Build: Compile your project efficiently.
• Rebuild: Clean and build your project in one step.
• Run: Run your Unreal Project file (*.uproject)
• Create New Blank C++ Projects: Quickly set up new C++ projects.
• Install Plugins: Easily manage and install plugins.

Usage

All functionalities are accessible via commands in Neovim, making it an ideal tool for developers who prefer a terminal-based workflow.

Lazyvim:

return {
  {
    "cvusmo/LinuxUnrealBuildTool.nvim",
    event = "VeryLazy",
    config = function()
      require('linuxunrealbuildtool').setup({
        project_path = "/home/bob/path/to/project",
        unreal_engine_path = "/home/bob/path/to/unrealengine"
      })
    end,
  },
}

Navigation:

• Section ᴎ - Before you begin
• Section I - Build from Source
• Section II - Neovim Integration
• Section III

Section ᴎ

This guide is designed to be simple and easy to follow. I would recommend reading each section before you execute any commands. If you don't know what a command does, look at the wiki, ask google, ask a friend, or chatgpt. I'm not responsible if you enter a command and it deletes something.

Contributing

With that out of the way, I'm moving away from IDE's and wanting to develop with neovim. Part of that is creating plugins like this to help make things a bit easier. If you encounter issues or need to install these dependencies on another distribution, or to contribute to the plugin, open an issue:

• Navigate to https://www.github.com/cvusmo/linuxunrealbuildtool.nvim
• Click on the "Issues" tab.
• Click "New issue".
• Fill in the title and provide any relevant information or questions.
• Click "Submit new issue".

Dependencies:

git base-devel clang cmake ispc dotnet-runtime-6.0 neovim bear

Arch:

sudo pacman -S git base-devel clang cmake ispc dotnet-runtime-6.0 

Debian/Ubuntu:

sudo apt update
sudo apt install git build-essential clang cmake ispc dotnet-runtime-6.0

Fedora:

sudo dnf install git @development-tools clang cmake ispc dotnet-runtime-6.0

openSUSE:

sudo zypper install git gcc gcc-c++ make automake cmake clang ispc dotnet-runtime-6.0

Section I

Building Unreal Engine from Source for Linux. Skip this section if you already have built Unreal Engine from source.

Before you follow Section I instructions, please follow the guide from Epic Games on how to get access to Unreal Engine source code: Unreal Engine 5.4 Documentation - How to download source code

1a. check for existing ssh key

ls -al ~/.ssh

1b. if you don't have an ssh key, generate a new ssh key pair

ssh-keygen -t rsa -b 4096 -C "your-email@exmaple.com"

git config --global user.name "Your Name"
git config --global user.email "your_email@example.com"

1c. add ssh key to ssh agent

bash or zsh

eval "$(ssh-agent -s)"
ssh-add ~/.ssh/id_rsa

fish

eval (ssh-agent -c)
ssh-add ~/.ssh/id_rsa

1d. add ssh key to github account

copy ssh key to clipboard using xclip

sudo pacman -S xclip
cat ~/.ssh/id_rsa.pub | xclip -selection clipboard

or

manually copy the key

cat ~/.ssh/id_rsa.pub

1e. add ssh keys to github account

- Log in to your GitHub account.
- Go to **Settings**.
- In the left sidebar, click **SSH and GPG keys**.
- Click **New SSH key**.
- Paste your SSH key into the "Key" field.
- Click **Add SSH key**.

1f. verify ssh connection

ssh -T git@github.com

success

Hi username! You've successfully authenticated, but GitHub does not provide shell access.

2a. clone repo from github for Unreal Engine 5.4

automated:

cd /path/to/where/you/want/to/install/UnrealEngine
./SourceBuild.sh

example:

cd /home/echo/Build/
./SourceBuild.sh

manually:

bash or zsh

git clone -b 5.4 git@github.com:EpicGames/UnrealEngine && cd UnrealEngine

fish

git clone -b 5.4 git@github.com:EpicGames/UnrealEngine; and cd UnrealEngine

2b. build unreal engine from source

./Setup.sh
./GenerateProjectFiles.sh
make -j1

Build error: "Unable to read module manifest"

./Engine/Build/BatchFiles/Linux/Build.sh UnrealEditor Linux Development -clean
./Engine/Build/BatchFiles/Linux/Build.sh UnrealEditor Linux Development

3a. create blank C++ project

cd /home/$USER/PATH/TO/HERE/UnrealEngine/Engine/Binaries/Linux
./UnrealEditor

Section II

Neovim Integration

Commands

Command	Description	Arguments
:LUBT Clean	Cleans the project	<ProjectName>
:LUBT Build	Builds the project	<ProjectName>
:LUBT Rebuild	Rebuilds the project	<ProjectName>
:LUBT Run	Runs the project	<ProjectName>
:LUBT CreateProject	Creates a new project	<ProjectName>
:LUBT InstallPlugins	Installs plugins for the project	<ProjectName>
:LUBT Help	Shows the help message	None