---
description: >
  Ensure the right version of Go is installed and set GOPATH to $HOME/go.
steps:
  - run:
      working_directory: ~/
      name: Setup Go
      command: |
        [ -n "$GO_VERSION" ] || { echo "You must set GO_VERSION"; exit 1; }
        # Install Go
        curl -sSLO "https://dl.google.com/go/go${GO_VERSION}.linux-amd64.tar.gz"
        sudo rm -rf /usr/local/go
        sudo tar -C /usr/local -xzf "go${GO_VERSION}.linux-amd64.tar.gz"
        rm -f "go${GO_VERSION}.linux-amd64.tar.gz"
        GOPATH="/go"
        mkdir $GOPATH 2>/dev/null || { sudo mkdir $GOPATH && sudo chmod 777 $GOPATH; }
        echo "export GOPATH='$GOPATH'" >> "$BASH_ENV"
        echo "export PATH='$PATH:$GOPATH/bin:/usr/local/go/bin'" >> "$BASH_ENV"

        echo "$ go version"
        go version