Setup

In order to use the various command line utilities in unreal, you do actually have to build the engine.

It takes a while to do, but it's quite easy.

Steps

Install xcode

Go to https://itunes.apple.com/au/app/xcode/id497799835?mt=12, or search the App store.

It's a free install.

Link your github account

Go to https://www.unrealengine.com/ue4-on-github and follow the steps there.

Automated

Notice that you must first perform steps 1 and 2, above.

If you want to automate this process using this repository, do this:

git clone git@github.com:shadowmint/unreal-mac-setup.git unreal
cd unreal
sh ./setup.sh

Notice that the build process downloads several GB of data, and compiles hundreds of source files. It might take an hour or so.

Otherwise, follow the steps listed below.

Manual

Clone the unreal source code

git clone git@github.com:EpicGames/UnrealEngine.git

Run setup

cd UnrealEngine
sh ./Setup.sh

Generate your project files

sh ./GenerateProjectFiles.sh

Build

xcodebuild -workspace UE4.xcworkspace -scheme UE4

Troubleshooting

Hangs on update...

Registering git hooks... (this will override existing ones!)
Setting up Mono
Checking dependencies (excluding Win32, Win64, Android)...
Updating dependencies:  99% (20986/20998), 3386.0/3409.3 MiB | 0.00 MiB/s...

...make sure your computer isn't set to 'wake for network access' in the power saving settings.