CI_with_precompile.yml

name: CI with Precompilation
on:
  push:
    branches:
      - master
      - main
  pull_request:
    branches:
      - master
      - main

permissions:
  actions: write  # needed to delete old caches
  contents: read

concurrency:
  # Skip intermediate builds: always.
  # Cancel intermediate builds: only if it is a pull request build.
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}

jobs:
  precompile:
    name: Precompile OrdinaryDiffEq
    runs-on: ubuntu-latest
    timeout-minutes: 60
    steps:
      - uses: actions/checkout@v4
      - uses: julia-actions/setup-julia@v2
        with:
          version: '1.10'
      - uses: julia-actions/cache@v2
        with:
          cache-name: 'precompile-cache'
      - name: Install dependencies
        run: julia --project -e 'using Pkg; Pkg.instantiate()'
      - name: Run precompilation workload
        run: |
          echo "Running precompilation workload with exact test environment settings..."
          julia --project --check-bounds=yes --startup-file=no -e 'using OrdinaryDiffEq; println("Precompilation completed successfully")'
      - name: Verify cache creation
        run: |
          echo "Julia depot structure (compiled artifacts):"
          find ~/.julia -name "*.ji" | head -10 || echo "No .ji files found"
          echo "Julia depot structure (shared libraries):"
          find ~/.julia -name "*.so" | head -5 || echo "No .so files found"
          echo "Cache verification completed"

  test-interface:
    name: Interface Tests
    needs: precompile
    runs-on: ubuntu-latest
    timeout-minutes: 60
    env:
      GROUP: 'InterfaceI'
    steps:
      - uses: actions/checkout@v4
      - uses: julia-actions/setup-julia@v2
        with:
          version: '1.10'
      - uses: julia-actions/cache@v2
        with:
          cache-name: 'precompile-cache'
      - name: Run interface tests
        run: julia --project -e 'using Pkg; Pkg.test()'
        env:
          JULIA_NUM_THREADS: 2

  test-integrators:
    name: Integrator Tests  
    needs: precompile
    runs-on: ubuntu-latest
    timeout-minutes: 60
    env:
      GROUP: 'Integrators'
    steps:
      - uses: actions/checkout@v4
      - uses: julia-actions/setup-julia@v2
        with:
          version: '1.10'
      - uses: julia-actions/cache@v2
        with:
          cache-name: 'precompile-cache'
      - name: Run integrator tests
        run: julia --project -e 'using Pkg; Pkg.test()'
        env:
          JULIA_NUM_THREADS: 2

  test-algorithms:
    name: Algorithm Tests
    needs: precompile
    runs-on: ubuntu-latest
    timeout-minutes: 60
    strategy:
      fail-fast: false
      matrix:
        group: [
          'AlgorithmConvergence1',
          'AlgorithmConvergence2', 
          'AlgorithmConvergence3',
          'AlgorithmConvergence4'
        ]
    env:
      GROUP: ${{ matrix.group }}
    steps:
      - uses: actions/checkout@v4
      - uses: julia-actions/setup-julia@v2
        with:
          version: '1.10'
      - uses: julia-actions/cache@v2
        with:
          cache-name: 'precompile-cache'
      - name: Run algorithm tests
        run: julia --project -e 'using Pkg; Pkg.test()'
        env:
          JULIA_NUM_THREADS: 2

  test-subpackages:
    name: Sub-package Tests
    needs: precompile
    runs-on: ubuntu-latest
    timeout-minutes: 60
    strategy:
      fail-fast: false
      matrix:
        package: [
          'OrdinaryDiffEqTsit5',
          'OrdinaryDiffEqBDF',
          'OrdinaryDiffEqRosenbrock',
          'OrdinaryDiffEqVerner',
          'OrdinaryDiffEqCore'
        ]
    env:
      GROUP: ${{ matrix.package }}
    steps:
      - uses: actions/checkout@v4
      - uses: julia-actions/setup-julia@v2
        with:
          version: '1.10'
      - uses: julia-actions/cache@v2
        with:
          cache-name: 'precompile-cache'
      - name: Run sub-package tests
        run: julia --project -e 'using Pkg; Pkg.test()'
        env:
          JULIA_NUM_THREADS: 2

  test-performance:
    name: Performance Tests
    needs: precompile
    runs-on: ubuntu-latest
    timeout-minutes: 60
    env:
      GROUP: 'Performance'
    steps:
      - uses: actions/checkout@v4
      - uses: julia-actions/setup-julia@v2
        with:
          version: '1.10'
      - uses: julia-actions/cache@v2
        with:
          cache-name: 'precompile-cache'
      - name: Run performance tests
        run: julia --project -e 'using Pkg; Pkg.test()'
        env:
          JULIA_NUM_THREADS: 2

  test-multithreading:
    name: Multithreading Tests
    needs: precompile
    runs-on: ubuntu-latest
    timeout-minutes: 60
    env:
      GROUP: 'Multithreading'
    steps:
      - uses: actions/checkout@v4
      - uses: julia-actions/setup-julia@v2
        with:
          version: '1.10'
      - uses: julia-actions/cache@v2
        with:
          cache-name: 'precompile-cache'
      - name: Run multithreading tests
        run: julia --project -e 'using Pkg; Pkg.test()'
        env:
          JULIA_NUM_THREADS: 4

  coverage:
    name: Coverage
    needs: [test-interface, test-integrators, test-algorithms, test-performance]
    runs-on: ubuntu-latest
    timeout-minutes: 60
    steps:
      - uses: actions/checkout@v4
      - uses: julia-actions/setup-julia@v2
        with:
          version: '1.10'
      - uses: julia-actions/cache@v2
        with:
          cache-name: 'precompile-cache'
      - name: Run coverage tests
        run: julia --project -e 'using Pkg; Pkg.test(coverage=true)'
        env:
          JULIA_NUM_THREADS: 2
      - uses: codecov/codecov-action@v4
        with:
          files: lcov.info
          token: ${{ secrets.CODECOV_TOKEN }}
          fail_ci_if_error: false

  # Optional: Cross-platform testing with shared precompilation
  test-cross-platform:
    name: Cross-platform Tests
    needs: precompile
    runs-on: ${{ matrix.os }}
    timeout-minutes: 60
    strategy:
      fail-fast: false
      matrix:
        os: [windows-latest, macos-latest]
        version: ['1.10']
    env:
      GROUP: 'InterfaceI'
    steps:
      - uses: actions/checkout@v4
      - uses: julia-actions/setup-julia@v2
        with:
          version: ${{ matrix.version }}
      - uses: julia-actions/cache@v2
        with:
          cache-name: 'precompile-cache-${{ matrix.os }}'
      - name: Install and precompile (platform-specific)
        run: |
          julia --project -e 'using Pkg; Pkg.instantiate()'
          julia --project precompile_workload.jl
      - name: Run cross-platform tests
        run: julia --project -e 'using Pkg; Pkg.test()'
        env:
          JULIA_NUM_THREADS: 2