ci.yml

name: CI

on:
  push:
  pull_request:
    branches:
      - 'master'

jobs:
  prepare:
    name: Prepare
    runs-on: ubuntu-latest
    outputs:
      trusted: ${{ steps.contains_tag.outputs.retval }}
      matrix_json: ${{ steps.crystal_action.outputs.matrix_json }}
      crystal_version: ${{ steps.crystal_action.outputs.crystal_version }}
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      # It's too slow. Will be re-added when this fix is released:
      # https://github.com/crystal-ameba/github-action/commit/6d139121f94294e33921104408ef98bdd33407c3
      # - name: Lint
      #   uses: crystal-ameba/github-action@v0.6.0
      #   env:
      #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Determine if tag is on trusted branch
        uses: rickstaa/action-contains-tag@0f592a0dd54a67d9af4545f6b6687ee01853d9a7
        id: contains_tag
        with:
          frail: false
          reference: "master"
          tag: "${{ github.ref }}"

      - name: Crystal Action
        id: crystal_action
        run: .github/workflows/crystal_action.rb

  build:
    name: Test & Build
    needs: prepare
    strategy:
      fail-fast: true
      matrix:
        include: ${{ fromJson(needs.prepare.outputs.matrix_json) }}
    runs-on: ${{ matrix.platform }}
    permissions:
      contents: write

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - if: matrix.platform != 'ubuntu-latest' && !endsWith(matrix.platform, '-arm')
        name: Install Crystal
        uses: crystal-lang/install-crystal@v1
        with:
          crystal: ${{ matrix.crystal }}

      - if: matrix.platform != 'ubuntu-latest' && !endsWith(matrix.platform, '-arm')
        name: Test & Build (on runner host)
        run: |
          make clean ci release

      - if: matrix.platform == 'ubuntu-latest' || endsWith(matrix.platform, '-arm')
        name: Test & Build (in alpine)
        uses: addnab/docker-run-action@v3
        with:
          image: 84codes/crystal:${{ matrix.crystal }}-alpine
          options: -v ${{ github.workspace }}:/workspace
          run: |
            cd /workspace && make clean ci release

      - if: startsWith(github.ref, 'refs/tags/') && matrix.crystal == needs.prepare.outputs.crystal_version && needs.prepare.outputs.trusted == 'true'
        name: Compute checksum
        run: |
          shasum -a 256 build/* >checksums.txt

      - if: startsWith(github.ref, 'refs/tags/') && matrix.crystal == needs.prepare.outputs.crystal_version && needs.prepare.outputs.trusted == 'true'
        name: Upload artifacts
        uses: actions/upload-artifact@v3
        with:
          name: sha256-${{ matrix.platform }}
          path: checksums.txt

      - if: startsWith(github.ref, 'refs/tags/') && matrix.crystal == needs.prepare.outputs.crystal_version && needs.prepare.outputs.trusted == 'true'
        name: Draft release
        uses: ncipollo/release-action@v1
        with:
          artifacts: "build/*"
          allowUpdates: true
          draft: true
          updateOnlyUnreleased: false
          generateReleaseNotes: false
          omitBody: true

  release:
    name: Release
    needs: [prepare, build]
    permissions:
      contents: write
    runs-on: ubuntu-latest

    if: startsWith(github.ref, 'refs/tags/') && needs.prepare.outputs.trusted == 'true'
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Download artifacts
        uses: actions/download-artifact@v3

      - name: Generate Release Notes
        run: .github/workflows/release_notes.sh >release.txt

      - name: Finish Release
        uses: ncipollo/release-action@v1
        with:
          allowUpdates: true
          draft: false
          updateOnlyUnreleased: false
          generateReleaseNotes: false
          bodyFile: release.txt
          omitBody: false