# packcheck-0.7.0
# You can use any of the options supported by packcheck as environment
# variables here.  See https://github.com/composewell/packcheck for all
# options and their explanation.

version: 2

#-----------------------------------------------------------------------------
# Packcheck global environment variables
#-----------------------------------------------------------------------------

env: &env
    environment:
      # ------------------------------------------------------------------------
      # Common options
      # ------------------------------------------------------------------------
      # GHC_OPTIONS: "-Werror"
      # For updating see: https://downloads.haskell.org/~ghcup/
      GHCUP_VERSION: 0.1.20.0
      CABAL_REINIT_CONFIG: "y"
      LC_ALL: "C.UTF-8"

      # ------------------------------------------------------------------------
      # What to build
      # ------------------------------------------------------------------------
      # DISABLE_TEST: "y"
      # DISABLE_BENCH: "y"
      # DISABLE_DOCS: "y"
      # DISABLE_SDIST_BUILD: "y"
      # DISABLE_SDIST_GIT_CHECK: "y"
      # DISABLE_DIST_CHECKS: "y"

      # ------------------------------------------------------------------------
      # stack options
      # ------------------------------------------------------------------------
      # Note requiring a specific version of stack using STACKVER may fail due to
      # github API limit while checking and upgrading/downgrading to the specific
      # version.
      #STACKVER: "1.6.5"
      #STACK_UPGRADE: "y"
      #RESOLVER: "lts-21"
      STACK_YAML: "stack.yaml"

      # ------------------------------------------------------------------------
      # cabal options
      # ------------------------------------------------------------------------
      CABAL_CHECK_RELAX: "y"
      CABAL_HACKAGE_MIRROR: "hackage.haskell.org:http://hackage.fpcomplete.com"
      CABAL_PROJECT: "cabal.project"

      # ------------------------------------------------------------------------
      # Where to find the required tools
      # ------------------------------------------------------------------------
      PATH: /opt/ghc/bin:/sbin:/usr/sbin:/bin:/usr/bin
      #TOOLS_DIR: /opt

      # ------------------------------------------------------------------------
      # Location of packcheck.sh (the shell script invoked to perform CI tests ).
      # ------------------------------------------------------------------------
      # You can either commit the packcheck.sh script at this path in your repo or
      # you can use it by specifying the PACKCHECK_REPO_URL option below in which
      # case it will be automatically copied from the packcheck repo to this path
      # during CI tests. In any case it is finally invoked from this path.
      PACKCHECK: "./packcheck.sh"
      # If you have not committed packcheck.sh in your repo at PACKCHECK
      # then it is automatically pulled from this URL.
      PACKCHECK_GITHUB_URL: "https://raw.githubusercontent.com/composewell/packcheck"
      PACKCHECK_GITHUB_COMMIT: "v0.7.0"

    # ubuntu seems to have better support than debian on CI systems
    docker:
      - image: ubuntu:latest

#-----------------------------------------------------------------------------
# Common utility stuff, not to be modified usually
#-----------------------------------------------------------------------------

preinstall: &preinstall
  run: |
        apt-get update
        # required for https/cache save and restore
        apt-get install -y ca-certificates

        # Alternative way of installing ghc and cabal, directly from
        # haskell.org instead of using ghcup. NOTE: this is for Debian
        # only and is debian release specific.
        # gnupg is required for apt-key to work
        #apt-get install -y gnupg
        #apt-key adv --keyserver keyserver.ubuntu.com  --recv-keys BA3CBA3FFE22B574
        #echo "deb http://downloads.haskell.org/debian buster main" >> /etc/apt/sources.list
        #apt-get update
        #apt-get install -y ghc-8.10.4
        #apt-get install -y cabal-install-3.4

        # required for outbound https for stack and for stack setup
        apt-get install -y netbase xz-utils make
        apt-get install -y zlib1g-dev

        # For ghcup to install ghc
        if test -n "$GHCUP_VERSION"
        then
          apt-get install -y gcc
          apt-get install -y g++
        fi

        # libgmp required by ghc for linking
        apt-get install -y libgmp-dev
        apt-get install -y libtinfo-dev

        # Required by cabal when git URL is specified in project file
        apt-get install -y git

        # Required for and by packcheck
        apt-get install -y curl

        # Get packcheck if needed
        if test ! -e "$PACKCHECK"
        then
          if test -z "$PACKCHECK_GITHUB_COMMIT"
          then
              die "PACKCHECK_GITHUB_COMMIT is not specified."
          fi
          PACKCHECK_URL=${PACKCHECK_GITHUB_URL}/${PACKCHECK_GITHUB_COMMIT}/packcheck.sh
          curl --fail -sL -o "$PACKCHECK" $PACKCHECK_URL || exit 1
          chmod +x $PACKCHECK
        elif test ! -x "$PACKCHECK"
        then
            chmod +x $PACKCHECK
        fi

restore: &restore
  # Needs to happen after installing ca-certificates
  restore_cache:
    key: v1-{{ .Environment.CIRCLE_JOB }}-{{ .Branch }}

save: &save
  save_cache:
      key: v1-{{ .Environment.CIRCLE_JOB }}-{{ .Branch }}
      paths:
        - ~/.local
        - ~/.cabal
        - ~/.stack
        - ~/.ghcup

#-----------------------------------------------------------------------------
# Build matrix
#-----------------------------------------------------------------------------

jobs:
  cabal-ghc-9-8-1:
      <<: *env
      steps:
        - checkout
        - *restore
        - *preinstall
        - run: |
              bash -c "$PACKCHECK cabal GHCVER=9.8.1"
        - *save
  cabal-ghc-9-6-3:
      <<: *env
      steps:
        - checkout
        - *restore
        - *preinstall
        - run: |
              bash -c "$PACKCHECK cabal GHCVER=9.6.3"
        - *save
  cabal-ghc-9-4-8:
      <<: *env
      steps:
        - checkout
        - *restore
        - *preinstall
        - run: |
              bash -c "$PACKCHECK cabal GHCVER=9.4.8"
        - *save
  cabal-ghc-9-2-8:
      <<: *env
      steps:
        - checkout
        - *restore
        - *preinstall
        - run: |
              bash -c "$PACKCHECK cabal GHCVER=9.2.8"
        - *save
  cabal-ghc-9-0-1:
      <<: *env
      steps:
        - checkout
        - *restore
        - *preinstall
        - run: |
              bash -c "$PACKCHECK cabal GHCVER=9.0.1"
        - *save
  cabal-ghc-8-10-7:
      <<: *env
      steps:
        - checkout
        - *restore
        - *preinstall
        - run: |
              bash -c "$PACKCHECK cabal-v2 GHCVER=8.10.7"
        - *save
  stack-lts-21:
      <<: *env
      steps:
        - checkout
        - *restore
        - *preinstall
        - run: |
            bash -c "$PACKCHECK stack RESOLVER=lts-21"
        - *save

workflows:
  version: 2
  build:
    jobs:
      # Uncomment the configs that you want to enable
      - cabal-ghc-9-8-1
      - cabal-ghc-9-6-3
      - cabal-ghc-9-4-8
      - cabal-ghc-9-2-8
      - cabal-ghc-9-0-1
      - cabal-ghc-8-10-7
      - stack-lts-21