ci.yml

name: ci

on:
  push:
    branches: [master]
  pull_request:

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

defaults:
  run:
    shell: bash

jobs:
  ci:
    if: "!contains(github.event.head_commit.message, '[skip ci]')"
    env:
      GKS_ENCODING: "utf8"
      GKSwstype: "nul"
      JULIA_CONDAPKG_BACKEND: "MicroMamba"
      MPLBACKEND: "agg"
    name: Julia ${{ matrix.version }} - ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.version == 'nightly' }}
    strategy:
      fail-fast: false
      matrix:
        version:
          - '1.6' # LTS (minimal declared julia compat in `Project.toml`)
          - '1.9' # latest stable
        os: [ubuntu-latest, windows-latest, macos-latest]
        arch: [x64]
        include:
          - os: ubuntu-latest
            prefix: xvfb-run  # julia-actions/julia-runtest/blob/master/README.md
          - os: ubuntu-latest
            prefix: xvfb-run
            version:  '1.7' # only test intermediate release on `ubuntu` to spare resources
          - os: ubuntu-latest
            prefix: xvfb-run
            version:  '1.8' # only test intermediate release on `ubuntu` to spare resources
          - os: ubuntu-latest
            prefix: xvfb-run
            version: '~1.10.0-0'  # upcoming julia version, next `rc`
          - os: ubuntu-latest
            prefix: xvfb-run
            version: 'nightly'
            allow_failure: true  # `nightly` often breaks

    steps:
      - uses: actions/checkout@v4

      - name: Ubuntu LaTeX dependencies
        if: startsWith(matrix.os, 'ubuntu')
        run: |
          sudo apt-get -y update
          sudo apt-get -y install gnuplot poppler-utils texlive-{latex-base,latex-extra,luatex} g++
          sudo fc-cache -vr

      - name: Set LD_PRELOAD
        if: startsWith(matrix.os, 'ubuntu')
        run: echo "LD_PRELOAD=$(g++ --print-file-name=libstdc++.so)" >> $GITHUB_ENV

      - uses: julia-actions/setup-julia@latest
        with:
          version: ${{ matrix.version }}
      - uses: julia-actions/cache@v1
      - uses: julia-actions/julia-buildpkg@latest

      - name: Run upstream RecipesBase & RecipesPipeline tests
        shell: julia --project=@. --color=yes {0}
        run: |
          using Pkg
          foreach(("RecipesBase", "RecipesPipeline")) do name
            Pkg.develop(path=name); Pkg.test(name; coverage=true)
          end

      - name: Install conda based matplotlib
        shell: julia --project=@. --color=yes {0}
        run: |
          using Pkg; Pkg.add("CondaPkg")
          using CondaPkg; CondaPkg.resolve()
          libgcc = if Sys.islinux()
            # see discourse.julialang.org/t/glibcxx-version-not-found/82209/8
            # julia 1.8.3 is built with libstdc++.so.6.0.29, so we must restrict to this version (gcc 11.3.0, not gcc 12.2.0)
            # see gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html
            specs = Dict(
              v"3.4.29" => ">=11.1,<12.1",
              v"3.4.30" => ">=12.1,<13.1",
              v"3.4.31" => ">=13.1,<14.1",
              # ... keep this up-to-date with gcc 14
            )[Base.BinaryPlatforms.detect_libstdcxx_version()]
            ("libgcc-ng$specs", "libstdcxx-ng$specs")
          else
            ()
          end
          CondaPkg.PkgREPL.add([libgcc..., "matplotlib"])
          CondaPkg.status()

      - uses: julia-actions/julia-runtest@latest
        timeout-minutes: 60
        with:
          prefix: ${{ matrix.prefix }}  # for `xvfb-run`

      - name: Run downstream tests
        if: startsWith(matrix.os, 'ubuntu')
        shell: xvfb-run julia --project=@. --color=yes {0}
        run: |
          using Pkg
          foreach(("StatsPlots", "GraphRecipes")) do name
            Pkg.activate(tempdir())
            foreach(path -> Pkg.develop(; path), ("RecipesBase", "RecipesPipeline", "."))
            Pkg.add(name); Pkg.test(name; coverage=true)
          end

      - uses: julia-actions/julia-processcoverage@latest
        if: startsWith(matrix.os, 'ubuntu')
        with:
          directories: RecipesBase/src,RecipesPipeline/src,src
      - uses: codecov/codecov-action@v3
        if: startsWith(matrix.os, 'ubuntu')
        with:
          file: lcov.info

  Skip:
    if: contains(github.event.head_commit.message, '[skip ci]')
    runs-on: ubuntu-latest
    steps:
      - name: Skip CI 🚫
        run: echo skip ci