haskell.yml

name: Haskell CI
# If it's a scheduled (for us: nightly) build, set the name of this run to a static value, so we can identify it easier.
# Otherwise, replicate the default run name: either the PR title if it exists, or the commit message otherwise.
run-name: |
       ${{github.event_name == 'schedule' && 'Haskell CI - NIGHTLY'
         || github.event.pull_request.title == '' && github.event.head_commit.message
         || github.event.pull_request.title}}

on:
  push:
    branches: [ "master", "release/**" ]
  pull_request:
    branches: [ "**" ]
  schedule:
    # "Nightly" builds: Every day at 06:00 UTC
    - cron: '0 6 * * *'
  # for running the workflow manually - useful for branches without PRs, for which jobs don't get ran automatically
  workflow_dispatch:
    inputs:
      nightly:
        description: Run with the same settings as a nightly build
        type: boolean
        default: false

# Cancel running workflows when a new workflow on the same PR or branch is started,
# but put scheduled workflows into their own group
concurrency:
  group: ${{
    format('{0}-{1}{2}',
      github.workflow,
      github.event.pull_request.number || github.ref,
      github.event_name == 'schedule' && '-scheduled' || '')}}
  cancel-in-progress: true

jobs:
  build:
    strategy:
      matrix:
        ghc: ["8.10.7", "9.2.8", "9.6.4", "9.8.2"]
        os: [ubuntu-latest]
      fail-fast: false

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

    env:
      # Modify this value to "invalidate" the cabal cache.
      CABAL_CACHE_VERSION: "2023-07-17"

      # current ref from: 27.02.2022
      SECP256K1_REF: ac83be33d0956faf6b7f61a60ab524ef7d6a473a

      SECP_CACHE_VERSION: "2022-12-30"

    defaults:
      run:
        shell: bash

    steps:
    - uses: actions/checkout@v4

    - name: Install system dependencies
      uses: input-output-hk/actions/base@latest
      with:
        use-sodium-vrf: false # default is true

    - name: Install Haskell
      id: install-haskell
      uses: input-output-hk/actions/haskell@latest
      with:
        ghc-version: ${{ matrix.ghc }}
        cabal-version: latest

    - name: Configure to use libsodium
      run: |
        cat >> cabal.project <<EOF
        package cardano-crypto-praos
          flags: -external-libsodium-vrf
        EOF

    - name: Cabal update
      run: cabal update

    - name: Cabal configure
      run: cabal configure --enable-tests --enable-benchmarks --write-ghc-environment-files=always

    - uses: actions/cache@v4
      if: matrix.os != 'macos-latest'
      name: Cache cabal store
      with:
        path: |
          ${{ steps.install-haskell.outputs.cabal-store }}
        # cache is invalidated upon a change to cabal.project (and/or cabal.project.local), a bump to
        # CABAL_CACHE_VERSION or after a week of inactivity
        key: cache-${{ runner.os }}-${{ matrix.ghc }}-${{ env.CABAL_CACHE_VERSION }}-${{ hashFiles('cabal.project*') }}
        # Restoring attempts are from current branch then master
        restore-keys: |
          cache-${{ runner.os }}-${{ matrix.ghc }}-${{ env.CABAL_CACHE_VERSION }}-${{ hashFiles('cabal.project*') }}

    - name: Check workflow test matrix
      run: cabal build all --dry-run && scripts/check-workflow-test-matrix.hs

    - name: Build dependencies
      run: cabal build all --only-dependencies

    - name: Build
      run: cabal build all

    # Pass working directory to test jobs
    - name: Archive working directory
      run: tar --format pax -cf /var/tmp/state.tar . && mv /var/tmp/state.tar .
    - name: Upload working directory archive
      uses: actions/upload-artifact@v4
      with:
        name: state-${{ matrix.ghc }}-${{ matrix.os }}
        path: state.tar
        overwrite: true
        retention-days: 1

  test:
    needs: build

    strategy:
      matrix:
        package:
        - byron-spec-chain
        - byron-spec-ledger
        - cardano-crypto-wrapper
        - cardano-data
        - cardano-ledger-allegra
        - cardano-ledger-alonzo
        - cardano-ledger-alonzo-test
        - cardano-ledger-api
        - cardano-ledger-babbage
        - cardano-ledger-babbage-test
        - cardano-ledger-binary
        - cardano-ledger-byron
        - cardano-ledger-conformance
        - cardano-ledger-conway
        - cardano-ledger-conway-test
        - cardano-ledger-core
        - cardano-ledger-mary
        - cardano-ledger-shelley
        - cardano-ledger-shelley-ma-test
        - cardano-ledger-shelley-test
        - cardano-ledger-test
        - cardano-protocol-tpraos
        - constrained-generators
        - non-integral
        - set-algebra
        - small-steps
        - vector-map
        ghc: ["8.10.7", "9.2.8", "9.6.4", "9.8.2"]
        os: [ubuntu-latest]
      fail-fast: false

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

    name: ${{ matrix.package }}-${{ matrix.ghc }}-${{ matrix.os }}

    env:
      # Modify this value to "invalidate" the cabal cache.
      CABAL_CACHE_VERSION: "2023-07-17"

      # current ref from: 27.02.2022
      SECP256K1_REF: ac83be33d0956faf6b7f61a60ab524ef7d6a473a

      SECP_CACHE_VERSION: "2022-12-30"

    defaults:
      run:
        shell: bash

    steps:
    - name: Install system dependencies
      uses: input-output-hk/actions/base@latest
      with:
        use-sodium-vrf: false # default is true

    - name: Install Haskell
      id: install-haskell
      uses: input-output-hk/actions/haskell@latest
      with:
        ghc-version: ${{ matrix.ghc }}
        cabal-version: latest

    - name: Set up Ruby 2.7
      uses: ruby/setup-ruby@v1
      with:
        ruby-version: 2.7

    - name: Install cbor-diag and cddl
      run: |
        gem install cddl -v 0.10.3
        gem install cbor-diag

    - name: Download Mainnet Mirror
      run: |
        REF=a31ac75
        {
          curl -L https://github.com/input-output-hk/cardano-mainnet-mirror/tarball/$REF -o mainnet-mirror.tgz
          tar -xzf mainnet-mirror.tgz
          mv input-output-hk-cardano-mainnet-mirror-$REF/epochs .
        } ||
        {
          git clone https://github.com/input-output-hk/cardano-mainnet-mirror
          cd cardano-mainnet-mirror
          git checkout $REF
          mv epochs ..
          cd ..
        }

    - name: Set NIGHTLY environment variable if the job was triggered by the scheduler
      if: "${{ github.event_name == 'schedule'
            || contains(github.event.pull_request.title, 'nightly')
            || github.event_name == 'workflow_dispatch' && github.event.inputs.nightly }}"
      run: |
        echo "NIGHTLY=true" >> $GITHUB_ENV

    # Retrieve working directory from build jobs
    - name: Download working directory archive
      uses: actions/download-artifact@v4
      with:
        name: state-${{ matrix.ghc }}-${{ matrix.os }}
    - name: Unarchive working directory
      run: tar -xf state.tar && rm state.tar

    - uses: actions/cache@v4
      if: matrix.os != 'macos-latest'
      name: Cache cabal store
      with:
        path: |
          ${{ steps.install-haskell.outputs.cabal-store }}
        # cache is invalidated upon a change to cabal.project (and/or cabal.project.local), a bump to
        # CABAL_CACHE_VERSION or after a week of inactivity
        key: cache-${{ runner.os }}-${{ matrix.ghc }}-${{ env.CABAL_CACHE_VERSION }}-${{ hashFiles('cabal.project*') }}
        # Restoring attempts are from current branch then master
        restore-keys: |
          cache-${{ runner.os }}-${{ matrix.ghc }}-${{ env.CABAL_CACHE_VERSION }}-${{ hashFiles('cabal.project*') }}

    - name: Cabal update
      run: cabal update

    - name: Run tests
      run: |
        export CARDANO_MAINNET_MIRROR="$(pwd)/epochs"
        cabal test ${{ matrix.package }}

  complete:
    name: Tests completed
    runs-on: ubuntu-latest
    needs: test
    if: always()
    steps:
    - run: |
        case ${{ needs.test.result }} in
          failure)
            echo 'Some tests failed'
            false;;
          success)
            echo 'All tests completed successfully';;
          *)
            echo 'Tests were ${{ needs.test.result }}';;
        esac

  fourmolu:
    runs-on: ubuntu-latest

    defaults:
      run:
        shell: bash

    strategy:
      fail-fast: false

    steps:
    - uses: actions/checkout@v4

    - name: Install fourmolu
      run: |
        FOURMOLU_VERSION="0.14.0.0"
        mkdir -p "$HOME/.local/bin"
        curl -sL "https://github.com/fourmolu/fourmolu/releases/download/v${FOURMOLU_VERSION}/fourmolu-${FOURMOLU_VERSION}-linux-x86_64" -o "$HOME/.local/bin/fourmolu"
        chmod a+x "$HOME/.local/bin/fourmolu"
        echo "$HOME/.local/bin" >> $GITHUB_PATH

    - name: Run fourmolu
      run: ./scripts/fourmolize.sh

  cabal-format:
    runs-on: ubuntu-latest

    defaults:
      run:
        shell: bash

    strategy:
      fail-fast: false

    steps:
    - uses: actions/checkout@v4
    - name: Format all cabal files
      run: ./scripts/cabal-format.sh

  gen-hie:
    runs-on: ubuntu-latest

    defaults:
      run:
        shell: bash

    strategy:
      fail-fast: false

    steps:
    - name: Cache implicit-hie executable (gen-hie)
      id: cache-gen-hie
      uses: actions/cache@v4
      with:
        path: |
          ~/.cabal/bin/gen-hie
        key: ${{ runner.os }}-cache-gen-hie

    - name: Install gen-hie if not cached
      if: steps.cache-gen-hie.outputs.cache-hit != 'true'
      run: cabal update && cabal install implicit-hie --install-method=copy --overwrite-policy=always

    - name: Add cabal-bin to PATH
      run: echo "$HOME/.cabal/bin" >> $GITHUB_PATH

    - uses: actions/checkout@v4

    - name: Regenerate hie.yaml and confirm that it is in sync
      run: ./scripts/gen-hie.sh

  branch-history:
    name: Check branch history
    runs-on: ubuntu-latest
    if: ${{ github.base_ref != '' && github.head_ref != '' }}
    steps:
    - uses: actions/checkout@v4
    - name: Ensure the branch doesn't contain any merges
      run: |
        git fetch origin ${{ github.base_ref }} ${{ github.head_ref }}
        if git log --merges --oneline --decorate origin/${{ github.base_ref }}..origin/${{ github.head_ref }} | grep .; then
          echo 'Branch must not contain merges'
          false
        fi

  notify-nightly-failure:
    name: Send a slack notification on \#ledger-internal if the nightly build failed
    runs-on: ubuntu-latest
    needs:
      - test
    if: always() && github.event_name == 'schedule' && needs.test.result == 'failure'
    steps:
      - name: Send slack notification
        id: slack
        uses: slackapi/slack-github-action@v1.24.0
        with:
          payload: |
            {
              "blocks": [
                {
                  "type": "section",
                  "text": {
                    "type": "mrkdwn",
                    "text": "Nightly Github Actions build failed: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
                  }
                }
              ]
            }
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK