continuous_integration.yml

name: Continuous integration
on: [push, pull_request, workflow_dispatch]

jobs:
  format:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - run: cargo fmt --workspace -- --check

  clippy:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - run: cargo clippy --workspace -- -D warnings

  test:
    # will wait for new cache on push to main branch, otherwise will run straight away with existing cache
    needs: generate_log
    strategy:
      fail-fast: false
      matrix:
        z3version: ['4.8.7', '4.8.17', '4.11.2', '4.12.2', '4.12.4']
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - id: configure-z3-id
      run: echo "z3_v_clean=$(echo "${{ matrix.z3version }}" | sed 's/\./_/g')" >> $GITHUB_OUTPUT
    - uses: actions/cache/restore@v3
      with:
        path: logs
        key: logs-${{ steps.configure-z3-id.outputs.z3_v_clean }}-${{ hashFiles('smt-problems/**/*.smt2') }}
    - id: check-logs-cached
      run: test -d "logs"
    - run: cargo test --workspace -- --nocapture

    # Failure
    - run: tar -czf failing_logs.tar.bz2 logs/
      if: failure()
    - uses: actions/upload-artifact@v3.1.2
      if: failure()
      with:
        name: "logs_z3_v${{ matrix.z3version }}"
        path: failing_logs.tar.bz2


  generate_log:
    # only run this job on push to main branch
    if: (github.event_name == 'push' && github.ref == 'refs/heads/main') || github.event_name == 'workflow_dispatch'
    strategy:
      fail-fast: false
      matrix:
        z3version: ['4.8.7', '4.8.17', '4.11.2', '4.12.2', '4.12.4']

    # for versions of Z3 at least 4.9.0 we need v1.3 of the GitHub action, for older versions of Z3, 1.2.2
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3 # this copies the whole repository
        with:
          fetch-depth: 0 # needed, see GitHub Action "Changed Files"

      - name: Install Z3 for older version
        uses: pavpanchekha/setup-z3@1.2.2 # see GitHub Action "Install Z3"
        if: ${{ matrix.z3version == '4.8.7' || matrix.z3version == '4.8.8' || matrix.z3version == '4.8.9' }}
        with:
          version: ${{ matrix.z3version }}

      - name: Install Z3 for newer version
        uses: pavpanchekha/setup-z3@v1.3 # see GitHub Action "Install Z3"
        if: ${{ !(matrix.z3version == '4.8.7' || matrix.z3version == '4.8.8' || matrix.z3version == '4.8.9') }}
        with:
          version: ${{ matrix.z3version }}

      - name: Configure Z3 version environment variable
        id: configure-z3-id
        run:
          echo "z3_v_clean=$(echo "${{ matrix.z3version }}" | sed 's/\./_/g')" >> $GITHUB_OUTPUT

      - name: Cache log files
        id: cache-log
        uses: actions/cache@v3
        with:
          path: logs
          key: logs-${{ steps.configure-z3-id.outputs.z3_v_clean }}-${{ hashFiles('smt-problems/**/*.smt2') }}
          restore-keys: |
            logs-${{ steps.configure-z3-id.outputs.z3_v_clean }}-

      - name: Run Z3 solver on changed smt2 files and compress
        id: run_z3_and_upload
        run: |
          # Create the 'logs' directory
          test -d "logs" || mkdir "logs"

          # Loop through all files and check that log exists
          for file in smt-problems/**/*.smt2; do
              test -f "$file" || break
              # Get the file hash
              file_hash=$(shasum -a 256 "$file" | cut -d' ' -f1)
              # Get the filename without extension
              base_name=$(basename "${file%.*}")
              # Log file name
              log_file_name="logs/${base_name}_fHash_${file_hash}.log"
              test -f "${log_file_name}" && continue

              rm -f "logs/${base_name}_fHash_*.log"
              echo "Processing $file to $log_file_name"
              # Run Z3 solver for the file and save the log in the 'logs' directory, TODO: `proof=true`?
              z3 trace=true -T:300 trace-file-name=${log_file_name} ./$file > /dev/null || echo "!!! Error processing $file"
          done

      # TODO: not enough permission for this.
      # - name: Delete old cache
      #   run: |
      #     echo "Fetching list of cache key"
      #     cacheKeys=$(gh cache list -R $REPO | cut -f 1)

      #     ## Setting this to not fail the workflow while deleting cache keys.
      #     set +e
      #     for cacheKey in $cacheKeys; do
      #         echo "Deleting $cacheKey"
      #         gh cache delete $cacheKey -R $REPO
      #     done
      #   env:
      #     GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      #     REPO: ${{ github.repository }}