name: CI

on:
  push:
    branches:
      - '*'
    paths:
      - 'test/**'
      - 'pysr/**'
      - '.github/workflows/**'
      - 'setup.py'
      - 'Project.toml'
  pull_request:
    branches:
      - '*'
    paths:
      - 'test/**'
      - 'pysr/**'
      - '.github/workflows/**'
      - 'setup.py'
      - 'Project.toml'

jobs:
  test:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        julia-version: ['1.5.0', '1.6.1', '1.7.1']
        python-version: ['3.7', '3.8', '3.9']
        os: [ubuntu-latest]
    
    steps:
      - uses: actions/checkout@v1.0.0
      - name: "Set up Julia"
        uses: julia-actions/setup-julia@v1.6.0
        with:
          version: ${{ matrix.julia-version }}
      - name: "Change package server"
        shell: bash
        env:
            JULIA_PKG_SERVER: ""
        run: |
            julia -e 'using Pkg; Pkg.Registry.add("General")'
      - name: "Cache dependencies"
        uses: actions/cache@v1 # Thanks FromFile.jl
        env:
          cache-name: cache-artifacts
        with:
          path: ~/.julia/artifacts
          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
          restore-keys: |
            ${{ runner.os }}-build-${{ env.cache-name }}-
            ${{ runner.os }}-build-
            ${{ runner.os }}-
      - name: "Set up Python"
        uses: actions/setup-python@v1
        with:
          python-version: ${{ matrix.python-version }}
      - name: "Install PySR"
        run: |
            python -m pip install --upgrade pip
            pip install -r requirements.txt
            python setup.py install
            python -c 'import pysr; pysr.install()'
      - name: "Install Coverage tool"
        run: pip install coverage coveralls
      - name: "Run tests"
        run: coverage run --source=pysr --omit='*/feynman_problems.py' -m unittest test.test
        shell: bash
      - name: "Install JAX"
        run: pip install jax jaxlib # (optional import)
        shell: bash
      - name: "Run JAX tests"
        run: coverage run --append --source=pysr --omit='*/feynman_problems.py' -m unittest test.test_jax
        shell: bash
      - name: "Install Torch"
        run: pip install torch # (optional import)
        shell: bash
      - name: "Run Torch tests"
        run: coverage run --append --source=pysr --omit='*/feynman_problems.py' -m unittest test.test_torch
        shell: bash
      - name: Coveralls
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          COVERALLS_FLAG_NAME: ${{ matrix.test-name }}
          COVERALLS_PARALLEL: true
        run: coveralls --service=github
  coveralls:
    name: Indicate completion to coveralls.io
    needs: test
    runs-on: ubuntu-latest
    container: python:3-slim
    steps:
      - name: Finished
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
            pip install coveralls
            coveralls --finish