haskell.yml

name: Build and Test
on:
  push:
    branches: [ master ]

env:
  project-cabal-file: trie-simple.cabal

jobs:
  generate-matrix:
    name: "Generate matrix from cabal"
    outputs: 
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    runs-on: ubuntu-latest
    steps:
      - name: Extract the tested GHC versions
        id: set-matrix
        uses: kleidukos/get-tested@v0.1.7.0
        with:
          cabal-file: ${{ env.project-cabal-file }}
          ubuntu-version: "latest"
          version: 0.1.7.0
  tests:
    name: ${{ matrix.ghc }} on ${{ matrix.os }}
    needs: generate-matrix
    runs-on: ${{ matrix.os }}
    strategy:
      matrix: ${{ fromJSON(needs.generate-matrix.outputs.matrix) }}
    steps:
      - uses: actions/checkout@v4

      - name: Setup Haskell
        uses: haskell-actions/setup@v2.7.1
        with:
          ghc-version: ${{ matrix.ghc }}
          cabal-version: '3.10'
      
      - name: Restore build and dependency cache
        uses: actions/cache/restore@v4
        id: restore-build-cache
        with:
          key: build-${{ matrix.os }}-${{ matrix.ghc }}-${{ hashFiles(env.project-cabal-file) }}
          restore-keys: |
            build-${{ matrix.os }}-${{ matrix.ghc }}-
          path: |
            ~/.cabal/config
            ~/.cabal/packages
            ~/.cabal/store
            dist-newstyle
      
      - name: (debug) ls cache dir
        run: |
          echo "---- global cache ----"
          ls ~/.cabal/store/ghc-${{ matrix.ghc }}/ || echo ":P)"
          echo "---- local cache ----"
          ls dist-newstyle/packagedb/ghc-${{ matrix.ghc }}/ || echo ":P)"
      
      - name: Build dependencies
        run: |
          cabal update
          cabal v2-build all --enable-tests --enable-benchmarks --only-dependencies
      
      - name: Build
        run: cabal v2-build all --enable-tests --enable-benchmarks
      
      - name: Run test
        run: cabal v2-test all

      - name: (debug) ls cache dir
        run: |
          echo "---- global cache ----"
          ls ~/.cabal/store/ghc-${{ matrix.ghc }}/ || echo ":P)"
          echo "---- local cache ----"
          ls dist-newstyle/packagedb/ghc-${{ matrix.ghc }}/ || echo ":P)"
      
      - uses: actions/cache/save@v4
        if: always()
        with:
          key: ${{ steps.restore-build-cache.outputs.cache-primary-key }}
          path: |
            ~/.cabal/config
            ~/.cabal/packages
            ~/.cabal/store
            dist-newstyle