config.yml

version: 2

jobs:
  build:
    docker:
      - image: circleci/python:3.7.0-stretch-browsers
    steps:
      - checkout

      - run:
          name: Set up environment
          command: |
            echo "export USER=circleci" >> "${BASH_ENV}"
            echo "export PATH=$HOME/.nix-profile/bin:$HOME/bin:$PATH" >> "${BASH_ENV}"

      - run:
          name: Install Bazel
          command: |
            set -x
            export USER=circleci
            VERSION=0.21.0
            INSTALLER=bazel-$VERSION-installer-linux-x86_64.sh
            wget https://github.com/bazelbuild/bazel/releases/download/$VERSION/$INSTALLER
            chmod +x $INSTALLER
            ./$INSTALLER --user

      - run:
          name: Install Nix
          command: |
            sudo mkdir -p /nix
            sudo chown -R circleci /nix
            NIX_RELEASE=2.1.3
            ARCH=x86_64
            wget https://nixos.org/releases/nix/nix-${NIX_RELEASE}/nix-${NIX_RELEASE}-${ARCH}-linux.tar.bz2
            tar -xjvf nix-${NIX_RELEASE}-${ARCH}-linux.tar.bz2
            mkdir -p /nix/var/nix/profiles/per-user/${USER}
            nix-${NIX_RELEASE}-${ARCH}-linux/install

      - run:
          name: Build and test
          command: bazel test --test_output=errors --jobs=2 //...

      - run:
          name: Test some third-party packages
          command: |
              bazel build --jobs=2 \
                  $(for p in $(cat test-packages.txt)
                    do
                       echo @haskell_$p//...
                    done)