jobs:
- job: ${{ parameters.name }}
  pool:
    vmImage: ${{ parameters.vmImage }}
  strategy:
    matrix:
      stack-def:
        BUILD: stack
        STACK_YAML: stack.yaml
      stack-lts-9:
        BUILD: stack
        STACK_YAML: stack-lts-9.yaml
        ARGS: "--resolver lts-9"
      stack-lts-11:
        BUILD: stack
        STACK_YAML: stack.yaml
        ARGS: "--resolver lts-11"
      stack-lts-12:
        BUILD: stack
        STACK_YAML: stack.yaml
        ARGS: "--resolver lts-12"
      stack-lts-13:
        BUILD: stack
        STACK_YAML: stack.yaml
        ARGS: "--resolver lts-13"
      stack-persistent-2-9:
        BUILD: stack
        STACK_YAML: stack-persistent-2-9.yaml
        ARGS: ""
      stack-persistent-2-10:
        BUILD: stack
        STACK_YAML: stack-persistent-2-10.yaml
        ARGS: ""
      cabal-8.0.2:
        BUILD: cabal
        GHCVER: 8.0.2
        CABALVER: 1.24
      cabal-8.2.2:
        BUILD: cabal
        GHCVER: 8.2.2
        CABALVER: 2.0
      cabal-8.4.4:
        BUILD: cabal
        GHCVER: 8.4.4
        CABALVER: 2.2
      cabal-8.6.5:
        BUILD: cabal
        GHCVER: 8.6.5
        CABALVER: 2.4
      nightly:
        BUILD: stack
        ARGS: "--resolver nightly"
      pedantic:
        BUILD: pedantic
        STACK_YAML: stack.yaml
    maxParallel: 6
  steps:
  - script: |
      export STACK_ROOT="$(Build.SourcesDirectory)"/.stack-root;
      mkdir -p ~/.local/bin
      curl -L https://get.haskellstack.org/stable/linux-x86_64.tar.gz | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
      case "$BUILD" in
        cabal)
          sudo add-apt-repository -y ppa:hvr/ghc
          sudo apt-get update
          sudo apt-get install cabal-install-$CABALVER ghc-$GHCVER
          # See note here: https://github.com/haskell-CI/haskell-ci#alex--happy-with-ghc--78
          if [ "$GHCVER" = "head" ] || [ "${GHCVER%.*}" = "7.8" ] || [ "${GHCVER%.*}" = "7.10" ]; then
            sudo apt-get install happy-1.19.4 alex-3.1.3
            export PATH=/opt/alex/3.1.3/bin:/opt/happy/1.19.4/bin:$PATH
          else
            sudo apt-get install happy alex
          fi
          export PATH=$HOME/.local/bin:/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$PATH
          cabal --version
          cabal update
          PACKAGES=$(stack --install-ghc query locals | grep '^ *path' | sed 's@^ *path:@@')
          cabal install --only-dependencies --enable-tests --enable-benchmarks --force-reinstalls --ghc-options=-O0 --reorder-goals --max-backjumps=-1 $CABALARGS $PACKAGES
          ;;
        *)
          export PATH=$HOME/.local/bin:$PATH
          stack --install-ghc $ARGS test --bench --only-dependencies
          ;;
      esac
      set -ex
      case "$BUILD" in
        cabal)
          cabal install --enable-tests --enable-benchmarks --force-reinstalls --ghc-options=-O0 --reorder-goals --max-backjumps=-1 $CABALARGS $PACKAGES

          ORIGDIR=$(pwd)
          for dir in $PACKAGES
          do
            cd $dir
            cabal check || [ "$CABALVER" == "1.16" ]
            cabal sdist
            PKGVER=$(cabal info . | awk '{print $2;exit}')
            SRC_TGZ=$PKGVER.tar.gz
            cd dist
            tar zxfv "$SRC_TGZ"
            cd "$PKGVER"
            cabal configure --enable-tests --ghc-options -O0
            cabal build
            if [ "$CABALVER" = "1.16" ] || [ "$CABALVER" = "1.18" ]; then
              cabal test
            else
              cabal test --show-details=streaming
            fi
            cd $ORIGDIR
          done
          ;;
        *)
          stack $ARGS test --bench --no-run-benchmarks --haddock --no-haddock-deps
          ;;
      esac
      set +ex
    env:
      OS_NAME: ${{ parameters.os }}
    displayName: 'Installation ${{parameters.os}} & Test'