build.yml

name: Build

on:
  push:
    branches:
      - main
  pull_request:
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
  cancel-in-progress: true

jobs:
  build:
    name: Build
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os:
          - macos-latest
          - macos-13
          - ubuntu-latest
        test-java-version:
          - 8
          - 11
          - 17
          - 21
        # macos-latest drops support for java 8 temurin. Run java 8 on macos-13. Run java 11, 17, 21 on macos-latest.
        exclude:
          - os: macos-latest
            test-java-version: 8
          - os: macos-13
            test-java-version: 11
          - os: macos-13
            test-java-version: 17
          - os: macos-13
            test-java-version: 21

    steps:
      - uses: actions/checkout@v3

      - id: setup-java-test
        name: Set up Java ${{ matrix.test-java-version }} for tests
        uses: actions/setup-java@v3
        with:
          distribution: temurin
          java-version: ${{ matrix.test-java-version }}

      - id: setup-java
        name: Set up Java for build
        uses: actions/setup-java@v3
        with:
          distribution: temurin
          java-version: 17

      - name: build
        uses: gradle/gradle-build-action@v2
        with:
          arguments: |
            build
            -PtestJavaVersion=${{ matrix.test-java-version }}
            -Porg.gradle.java.installations.paths=${{ steps.setup-java-test.outputs.path }},${{ steps.setup-java.outputs.path }}

      - name: generate
        # Skip running on macos-latest which doesn't have docker
        if: matrix.os == 'ubuntu-latest'
        uses: gradle/gradle-build-action@v2
        with:
          arguments: |
            generateSemanticConventions --console=plain
      # Run spotless after generate to format generated code
      - name: spotless
        uses: gradle/gradle-build-action@v2
        with:
          arguments: |
            spotlessApply

      - name: Check for diff
        run: |
          # need to "git add" in case any generated files did not already exist
          # select files from both /semconv and /semconv-incubating
          git add semconv**
          if git diff --cached --quiet
          then 
            echo "No diff detected."
          else 
            echo "Diff detected - did you run './gradlew generateSemanticConventions spotlessApply'?"
            echo $(git diff --cached --name-only)
            echo $(git diff --cached)
            exit 1
          fi

  markdown-link-check:
    # release branches are excluded to avoid unnecessary maintenance
    if: ${{ !startsWith(github.ref_name, 'release/') }}
    uses: ./.github/workflows/reusable-markdown-link-check.yml

  misspell-check:
    # release branches are excluded to avoid unnecessary maintenance
    if: ${{ !startsWith(github.ref_name, 'release/') }}
    uses: ./.github/workflows/reusable-misspell-check.yml

  required-status-check:
    # markdown-link-check is not required so pull requests are not blocked if external links break
    # misspell-check is not required so pull requests are not blocked if the misspell dictionary is
    # updated
    needs:
      - build
    runs-on: ubuntu-latest
    if: always()
    steps:
      - if: |
          needs.build.result != 'success'
        run: exit 1