CI.yml

---
name: CI
on:
  pull_request:
  push:
    branches:
      - main
    paths-ignore:
      - "Artifacts.toml"  # Impending package release. Will trigger via `tags`
    tags: ["*"]
concurrency:
  # Skip intermediate builds: on all builds except on the "main" branch.
  # Cancel intermediate builds: only if it is a pull request build.
  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref == 'refs/heads/main' && github.run_number || 0 }}
  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
jobs:
  unpublished:
    name: Artifact Check
    runs-on: ubuntu-latest
    outputs:
      key: ${{ steps.key.outputs.key }}
      tarball_filename: ${{ steps.key.outputs.tarball_filename }}
      content_hash: ${{ steps.key.outputs.content_hash }}
    steps:
      - uses: actions/checkout@v4
      - uses: dorny/paths-filter@v3
        id: filter
        with:
          filters: |
            modified_artifacts_toml:
              - Artifacts.toml
      - name: Check for unpublished artifact
        if: ${{ steps.filter.outputs.modified_artifacts_toml == 'true' }}
        id: key
        shell: julia --color=yes {0}
        run: |
          include(joinpath(pwd(), "gen", "artifacts.jl"))
          (; key, tarball_filename, content_hash) = gh_artifact()
          open(ENV["GITHUB_OUTPUT"], "a") do io
              println(io, "key=$key")
              println(io, "tarball_filename=$tarball_filename")
              println(io, "content_hash=$content_hash")
          end

  test:
    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
    needs: unpublished
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.version == 'nightly' }}
    strategy:
      fail-fast: false
      matrix:
        version:
          - "1.6"  # LTS / Oldest supported version
          - "1"    # Latest release
          - "nightly"
        os:
          - ubuntu-latest
        arch:
          - x64
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0  # Allows checkout of Artifacts.toml from base ref
      - uses: dawidd6/action-download-artifact@v3
        if: ${{ needs.unpublished.outputs.key }}
        id: action-artifact
        with:
          workflow: Update.yaml
          name: ${{ needs.unpublished.outputs.key }}
      - name: Clear cached Overrides.toml
        if: ${{ !needs.unpublished.outputs.key }}
        run: rm -f ~/.julia/artifacts/Overrides.toml
      - name: Create artifacts Overrides.toml
        if: ${{ needs.unpublished.outputs.key }}
        run: |
          set -ex
          tarball_path="$PWD/${{ needs.unpublished.outputs.tarball_filename }}"
          [ -f "$tarball_path" ] || exit 1

          # A valid Artifacts.toml file is required: Pkg.jl issue #2662
          mv Artifacts.toml NewArtifacts.toml
          git checkout origin/${{ github.base_ref }} -- Artifacts.toml

          artifact_dir="$HOME/.julia/artifacts/${{ needs.unpublished.outputs.content_hash }}"
          mkdir -p "$artifact_dir"
          tar xvf "$tarball_path" -C "$artifact_dir"

          # Why doesn't this work?
          # cat > ~/.julia/artifacts/Overrides.toml <<EOF
          # [dc5dba14-91b3-4cab-a142-028a31da12f7]
          # tzjdata = "${{ needs.unpublished.outputs.content_hash }}"
          # EOF

          cat > ~/.julia/artifacts/Overrides.toml <<EOF
          [dc5dba14-91b3-4cab-a142-028a31da12f7]
          tzjdata = "$artifact_dir"
          EOF

          echo "TZJDATA_ARTIFACT_TOML=$PWD/NewArtifacts.toml" | tee -a "$GITHUB_ENV"
          echo "TZJDATA_TARBALL_PATH=$tarball_path" | tee -a "$GITHUB_ENV"
      - name: Debug
        if: ${{ needs.unpublished.outputs.key }}
        run: |
          set -x
          cat ~/.julia/artifacts/Overrides.toml
          cat Artifacts.toml
      - uses: julia-actions/setup-julia@v1
        with:
          version: ${{ matrix.version }}
          arch: ${{ matrix.arch }}
      - uses: julia-actions/cache@v1
      - uses: julia-actions/julia-buildpkg@v1
      - uses: julia-actions/julia-runtest@v1