message: Attempt to download and install Unreal Engine.
diff: @@ -16,6 +16,14 @@ jobs:
  - npm run format -- --dry-run -Werror
  - name: Windows + VS2017
  os: windows
  + install:
  + - choco install awscli
  + - choco install 7zip.portable
  + - aws s3 cp s3://cesium-unreal-engine/2021-03-16/UE_4.26.zip .
  + - 7z e UE_4.26.zip "-oC:\Program Files\Epic Games"
  + - del UE_4.26.zip
  + - aws s3 cp s3://cesium-unreal-engine/2021-03-16/Launcher.zip .
  + - 7z e UE_4.Launcher.zip "-oC:\Program Files (x86)\Epic Games"
  before_script:
  - mkdir -p extern/build
  - cd extern/build
  