message: remove homebrew and install gsutil manually
diff: @@ -50,16 +50,12 @@ jobs:
  - name: MacOS
  os: osx
  osx_image: xcode10.2
  - addons:
  - homebrew:
  - update: true
  - casks:
  - - google-cloud-sdk
  install:
  - python -m pip install --upgrade pip
  - pip3 install --upgrade pip
  - pip3 install awscli
  - - /usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/install.sh
  + - curl https://storage.googleapis.com/pub/gsutil.tar.gz --output gsutil.tar.gz
  + - tar xfz gsutil.tar.gz -C $HOME
  before_script:
  - mkdir -p extern/build
  - cd extern/build
  