ci.yml

name: CI
on:
  push:
    branches:
      - master
    paths-ignore:
      - 'docs/**'
      - '*.md'
  pull_request:
    types:
      - opened
      - synchronize
    paths-ignore:
      - 'docs/**'
      - '*.md'
jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        cabal: ["3.10.1.0"]
        ghc: ["9.2", "9.4" , "9.6" , "9.8"]
    env:
      CONFIG: "--enable-tests"
    steps:
      - uses: actions/checkout@v4
      - uses: haskell-actions/setup@v2
        id: setup-haskell-cabal
        with:
          ghc-version:   ${{ matrix.ghc }}
          cabal-version: ${{ matrix.cabal }}
          cabal-update:  true
      - name: Configure
        run: cabal configure $CONFIG
      - name: Ensure buildability with GHC-shipped versions of dependencies
        # Fix all GHC-shipped libraries to their installed version.
        # This list is a superset of libraries that are actually used during the build,
        # but this does not matter, as it does not entail that all these libraries are built.
        run: |
          cat >> cabal.project.local <<EOF
          constraints:  Cabal              installed
          constraints:  Cabal-syntax       installed
          constraints:  array              installed
          constraints:  base               installed
          constraints:  binary             installed
          constraints:  bytestring         installed
          constraints:  containers         installed
          constraints:  deepseq            installed
          constraints:  directory          installed
          constraints:  exceptions         installed
          constraints:  filepath           installed
          constraints:  ghc                installed
          constraints:  ghc-bignum         installed
          constraints:  ghc-boot           installed
          constraints:  ghc-boot-th        installed
          constraints:  ghc-compact        installed
          constraints:  ghc-heap           installed
          constraints:  ghc-prim           installed
          constraints:  ghci               installed
          constraints:  haskeline          installed
          constraints:  hpc                installed
          constraints:  integer-gmp        installed
          constraints:  libiserv           installed
          constraints:  mtl                installed
          constraints:  parsec             installed
          constraints:  pretty             installed
          constraints:  process            installed
          constraints:  rts                installed
          constraints:  semaphore-compat   installed
          constraints:  stm                installed
          constraints:  system-cxx-std-lib installed
          constraints:  template-haskell   installed
          constraints:  terminfo           installed
          constraints:  text               installed
          constraints:  time               installed
          constraints:  transformers       installed
          constraints:  unix               installed
          constraints:  xhtml              installed
          EOF
      - name: Construct the build plan
        run: cabal build --dry-run
        # The dry-run generates the build plan 'dist-newstyle/cache/plan.json'.
        # The freeze file is not suitable for a cache key as it contains the hackage timestamp,
        # which updates for every run of this action (via `cabal update`).
      - uses: actions/cache@v3
        env:
          key: ${{ runner.os }}-ghc-${{ steps.setup-haskell-cabal.outputs.ghc-version }}-cabal-${{ steps.setup-haskell-cabal.outputs.cabal-version }}
        with:
          path: |
            ${{ steps.setup-haskell-cabal.outputs.cabal-store }}
            dist-newstyle
          key:          ${{ env.key }}-plan-${{ hashfiles('dist-newstyle/cache/plan.json') }}
          restore-keys: ${{ env.key }}-
      - run: cabal build --dependencies-only
      - run: cabal build
      - run: cabal test
      - run: cabal haddock
      - run: cabal sdist