tests-r-via-nix.yaml

# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
on:
  push:
    branches: [main, master]
  pull_request:
    branches: [main, master]

name: devtools-tests-via-r-nix

permissions:
  contents: read

jobs:
  devtools_test:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [macos-latest, ubuntu-latest]
    env:
      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}

    steps:
      - uses: actions/checkout@v4

      - uses: cachix/install-nix-action@v25
        with:
          nix_path: nixpkgs=https://github.com/rstats-on-nix/nixpkgs/archive/refs/heads/r-daily.tar.gz

      - uses: cachix/cachix-action@v14
        with:
          name: rstats-on-nix
      
      - name: devtools::test() via nix-shell
        run: nix-shell --pure -p cacert nix R rPackages.covr rPackages.codetools rPackages.xml2 rPackages.sys rPackages.devtools --run "Rscript -e 'devtools::test()'"
      #- name: Test coverage
      #  run: nix-shell --pure -p nix git cacert R rPackages.covr rPackages.codetools rPackages.sys rPackages.xml2 rPackages.testthat --run "Rscript -e 'covr::codecov()' "

      - name: Show testthat output
        if: always()
        run: |
          ## --------------------------------------------------------------------
          find ${{ runner.temp }}/package -name 'testthat.Rout*' -exec cat '{}' \; || true
        shell: bash

      - name: Upload test results
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: coverage-test-failures
          path: ${{ runner.temp }}/package