# Github Actions config
# Based on https://gist.github.com/mstksg/11f753d891cee5980326a8ea8c865233
# ("Currently not working for cabal-install >= 3")
# Based on https://raw.githubusercontent.com/commercialhaskell/stack/stable/doc/travis-complex.yml

# ref:
# https://help.github.com/en/actions
# https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners#supported-runners-and-hardware-resources
# https://github.com/actions/cache
# https://help.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows
# https://github.com/sdras/awesome-actions
# http://www.btellez.com/posts/triggering-github-actions-with-webhooks.html

name: hledger CI

on:
  push:
    branches: [ master ]
  # pull_request:
  #   branches: [ master ]
  # schedule:
  # - cron: "0 23 * * *"

jobs:
  build:
    strategy:
      matrix:
        # os runners: https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners#supported-runners-and-hardware-resources
        os: [ubuntu-latest, macos-latest, windows-latest]
        # use this to specify what resolvers and ghc to use
        plan:
        # - { build: stack, resolver: "--resolver lts-9"  }    # ghc-8.0.2
        # - { build: stack, resolver: "--resolver lts-11"  }   # ghc-8.2.2
        # - { build: stack, resolver: "--resolver lts-12"  }   # ghc-8.4.4
        ## - { build: stack, resolver: "--resolver lts-13"  }  redundant because lts-14 checks ghc-8.6 already
        # - { build: stack, resolver: "--resolver lts-14"  }   # ghc-8.6.5
        - { build: stack, resolver: "--resolver lts-15"  }   # ghc-8.8.2
        # - { build: stack, resolver: "--resolver nightly" }
        # - { build: stack, resolver: ""                   }
        # - { build: cabal, ghc: 8.0.2, cabal-install: "2.0"  }   # setup-haskell only supports cabal-install 2.0 and higher
        # - { build: cabal, ghc: 8.2.2, cabal-install: "2.0"  }
        # - { build: cabal, ghc: 8.4.4, cabal-install: "2.2"  }
        # - { build: cabal, ghc: 8.6.5, cabal-install: "2.4"  }
        # - { build: cabal, ghc: 8.8.1, cabal-install: "2.4"  }   # currently not working for >= 3.0
        # use this to include any dependencies from OS package managers
        include: []
        # - os: macos-latest
        #   brew: anybrewdeps
        # - os: ubuntu-latest
        #   apt-get: happy libblas-dev liblapack-dev

        # exclude:
        # - os: macos-latest
        #   plan:
        #     build: cabal

    runs-on: ${{ matrix.os }}

    steps:

    # cf https://github.com/actions/cache/blob/master/examples.md#haskell---cabal
    - uses: actions/cache@v1
      name: Cache ~/.stack
      with:
        path: ~/.stack
        key: ${{ runner.os }}-stack
        #key: ${{ runner.os }}-${{ matrix.resolver }}-stack

    - uses: actions/cache@v1           # https://github.com/marketplace/actions/cache
      name: Cache ~/.local/bin
      with:
        path: ~/.local/bin
        key: ${{ runner.os }}-local-bin

    # - name: Install OS Packages
    #   uses: mstksg/get-package@v1   # https://github.com/marketplace/actions/get-package
    #   with:
    #     apt-get: ${{ matrix.apt-get }}
    #     brew: ${{ matrix.brew }}

    - uses: actions/checkout@v2       # https://github.com/marketplace/actions/checkout

    # install stack
    # doesn't support windows, https://github.com/mstksg/setup-stack/issues/5
    # - name: Setup stack
    #   uses: mstksg/setup-stack@v1     # https://github.com/marketplace/actions/setup-stack
    # ubuntu has stack preinstalled
    # on mac can get it with brew:
    - if: matrix.os == 'macos-latest'
      run: brew install haskell-stack
    # on windows can get it this way:
    - if: matrix.os == 'windows-latest'
      run: |
        set -ex
        curl -skL -ostack.zip http://www.stackage.org/stack/windows-x86_64
        7z x stack.zip stack.exe
        stack --version
        set +ex

    # - name: Setup cabal-install
    #   uses: actions/setup-haskell@v1
    #   with:
    #     ghc-version: ${{ matrix.plan.ghc }}
    #     cabal-version: ${{ matrix.plan.cabal-install }}
    #   if: matrix.plan.build == 'cabal'

    - name: Install dependencies
      run: |
        set -ex
        case "$BUILD" in
          stack)
            stack --no-terminal --install-ghc $ARGS test --bench --only-dependencies
            ;;
          cabal)
            cabal --version
            cabal update
            PACKAGES=$(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
            ;;
        esac
        set +ex
      env:
        ARGS: ${{ matrix.plan.resolver }}
        BUILD: ${{ matrix.plan.build }}

    - name: Build
      run: |
        set -ex
        case "$BUILD" in
          stack)
            stack --no-terminal $ARGS test --bench --no-run-benchmarks --haddock --no-haddock-deps
            ;;
          cabal)
            PACKAGES=$(stack --install-ghc query locals | grep '^ *path' | sed 's@^ *path:@@')
            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 --log=/dev/stdout
              fi
              cd $ORIGDIR
            done
            ;;
        esac
        set +ex
      env:
        ARGS: ${{ matrix.plan.resolver }}
        BUILD: ${{ matrix.plan.build }}