# 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
# https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners#supported-runners-and-hardware-resources
# https://github.com/actions/setup-haskell

name: hledger CI

on:
  push:
    branches: [ master ]
    paths:
      - 'stack*'
      - 'hledger-lib'
      - 'hledger'
      - 'hledger-ui'
      - 'hledger-web'
      - '.github/workflows/*'
      - '!**.md'
      - '!**.1'
      - '!**.5'
      - '!**.info'
      - '!**.txt'
  pull_request:
    branches: [ master ]
    paths:
      - 'stack*'
      - 'hledger-lib'
      - 'hledger'
      - 'hledger-ui'
      - 'hledger-web'
      - '.github/workflows/*'
      - '!**.md'
      - '!**.1'
      - '!**.5'
      - '!**.info'
      - '!**.txt'
  # schedule:
  # - cron: "0 23 * * *"

jobs:
  build:
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        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:

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

    # check out the current branch tip
    - name: Check out
      uses: actions/checkout@v2       # https://github.com/marketplace/actions/checkout

    - name: Install stack (ubuntu)
      if: matrix.os == 'ubuntu-latest'
      # preinstalled
      # curl -L https://get.haskellstack.org/stable/linux-x86_64.tar.gz | tar xz --wildcards --strip-components=1 -C $INSTALLDIR '*/stack'
      run: |
        stack --version

    - name: Install stack (mac)
      if: matrix.os == 'macos-latest'
      # curl --insecure -L https://get.haskellstack.org/stable/osx-x86_64.tar.gz | tar xz --strip-components=1 --include '*/stack' -C $INSTALLDIR
      run: |
        brew install haskell-stack
        stack --version

    - name: Install stack (windows)
      if: matrix.os == 'windows-latest'
      # PowerShell.exe -Command "&{Invoke-WebRequest -OutFile %HOME%\\stack.zip https://get.haskellstack.org/stable/windows-x86_64.zip ; 7z e ${installdir}\\stack.zip -o${installdir} stack.exe }"
      run: |
        curl -skL -o stack.zip http://www.stackage.org/stack/windows-x86_64
        7z x stack.zip -o%HOME% stack.exe
        stack --version

    - name: Install haskell deps
      run: |
        stack --no-terminal --install-ghc $ARGS test --bench --only-dependencies
      env:
        ARGS: ${{ matrix.plan.resolver }}
        # BUILD: ${{ matrix.plan.build }}

    - name: Build
      run: |
        stack --no-terminal $ARGS test --bench --no-run-benchmarks --haddock --no-haddock-deps
      env:
        ARGS: ${{ matrix.plan.resolver }}
        # BUILD: ${{ matrix.plan.build }}