main.yml

name: Build and Deploy Snapshot
on:
  push:
    branches: ['3.*']
    paths-ignore:
    - "README.md"
    - "release-notes/*"
  pull_request:
    paths-ignore:
    - "README.md"
    - "release-notes/*"
permissions:
  contents: read
  pull-requests: write

jobs:
  build:
    runs-on: 'ubuntu-24.04'
    strategy:
      fail-fast: false
      matrix:
        java_version: ['17', '21', '25']
        include:
          - java_version: '17'
            release_build: 'R'
    env:
      JAVA_OPTS: "-XX:+TieredCompilation -XX:TieredStopAtLevel=1"
    steps:
    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
    - name: Set up JDK
      uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
      with:
        distribution: 'temurin'
        java-version: ${{ matrix.java_version }}
        cache: 'maven'
        server-id: central-snapshots
        server-username: CI_DEPLOY_USERNAME
        server-password: CI_DEPLOY_PASSWORD
        # See https://github.com/actions/setup-java/blob/v2/docs/advanced-usage.md#Publishing-using-Apache-Maven
        # gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }} # Value of the GPG private key to import
        # gpg-passphrase: MAVEN_GPG_PASSPHRASE # env variable for GPG private key passphrase
    - name: Build
      run: ./mvnw -B -q -ff -ntp verify
    - name: Extract project Maven version
      id: projectVersion
      run: echo "version=$(./mvnw org.apache.maven.plugins:maven-help-plugin:3.5.1:evaluate -DforceStdout -Dexpression=project.version -q)" >> $GITHUB_OUTPUT
    - name: Deploy snapshot
      if: ${{ matrix.release_build && github.event_name != 'pull_request' && endsWith(steps.projectVersion.outputs.version, '-SNAPSHOT') }}
      env:
        CI_DEPLOY_USERNAME: ${{ secrets.CENTRAL_DEPLOY_USERNAME }}
        CI_DEPLOY_PASSWORD: ${{ secrets.CENTRAL_DEPLOY_PASSWORD }}
        # MAVEN_GPG_PASSPHRASE: ${{ secrets.MAVEN_GPG_PASSPHRASE }}
      run: ./mvnw -B -q -ff -DskipTests -ntp source:jar deploy
    - name: Generate code coverage
      if: ${{ matrix.release_build }}
      run: ./mvnw -B -q -ff -ntp test jacoco:report
    - name: Publish code coverage
      if: ${{ matrix.release_build && github.event_name != 'pull_request' }}
      uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2 # v6.0.0
      with:
        token: ${{ secrets.CODECOV_TOKEN }}
        files: cbor/target/site/jacoco/jacoco.xml,smile/target/site/jacoco/jacoco.xml,avro/target/site/jacoco/jacoco.xml,protobuf/target/site/jacoco/jacoco.xml,ion/target/site/jacoco/jacoco.xml
        flags: unittests
    - name: Upload coverage report as artifact
      if: ${{ matrix.release_build && github.event_name != 'pull_request' && github.repository == 'FasterXML/jackson-dataformats-binary' }}
      uses: actions/upload-artifact@v7
      with:
        name: jacoco-report
        path: '**/target/site/jacoco/jacoco.csv'
        retention-days: 30
    - name: Download base branch coverage
      if: ${{ matrix.release_build && github.event_name == 'pull_request' }}
      uses: dawidd6/action-download-artifact@v20
      continue-on-error: true
      with:
        workflow: main.yml
        branch: ${{ github.event.pull_request.base.ref }}
        name: jacoco-report
        path: base-coverage/
    - name: Generate coverage comment
      if: ${{ matrix.release_build && github.event_name == 'pull_request' }}
      run: |
        parse_coverage() {
          local col_missed=$1 col_covered=$2
          shift 2
          awk -F',' -v m="$col_missed" -v c="$col_covered" \
            'FNR>1 { total_missed += $m; total_covered += $c }
             END { if (total_missed + total_covered > 0)
                     printf "%.2f", (total_covered * 100.0) / (total_missed + total_covered) }' "$@"
        }

        badge_color() {
          awk -v pct="$1" 'BEGIN{
            if (pct >= 90) print "brightgreen"
            else if (pct >= 80) print "green"
            else if (pct >= 70) print "yellowgreen"
            else if (pct >= 60) print "yellow"
            else if (pct >= 50) print "orange"
            else print "red"
          }'
        }

        compute_delta() {
          awk -v pr="$1" -v base="$2" 'BEGIN{
            delta = pr - base
            if (delta > 0) printf "📈 +%.2f%%", delta
            else if (delta < 0) printf "📉 %.2f%%", delta
            else printf "= 0.00%%"
          }'
        }

        PR_CSV_FILES="cbor/target/site/jacoco/jacoco.csv \
          smile/target/site/jacoco/jacoco.csv \
          avro/target/site/jacoco/jacoco.csv \
          protobuf/target/site/jacoco/jacoco.csv \
          ion/target/site/jacoco/jacoco.csv"

        PR_COVERAGE=$(parse_coverage 4 5 $PR_CSV_FILES)
        PR_BRANCHES=$(parse_coverage 6 7 $PR_CSV_FILES)

        COV_COLOR=$(badge_color "$PR_COVERAGE")
        BR_COLOR=$(badge_color "$PR_BRANCHES")

        COV_BADGE="![${PR_COVERAGE}%](https://img.shields.io/badge/instructions-${PR_COVERAGE}%25-${COV_COLOR})"
        BR_BADGE="![${PR_BRANCHES}%](https://img.shields.io/badge/branches-${PR_BRANCHES}%25-${BR_COLOR})"

        BASE_CSV_FILES=$(find base-coverage -name "jacoco.csv" 2>/dev/null | tr '\n' ' ')

        if [ -n "$BASE_CSV_FILES" ]; then
          BASE_COVERAGE=$(parse_coverage 4 5 $BASE_CSV_FILES)
          BASE_BRANCHES=$(parse_coverage 6 7 $BASE_CSV_FILES)
          COVERAGE_DELTA=$(compute_delta "$PR_COVERAGE" "$BASE_COVERAGE")
          BRANCHES_DELTA=$(compute_delta "$PR_BRANCHES" "$BASE_BRANCHES")
          TABLE_HEADER="| Coverage Type | Coverage | Change |"
          TABLE_SEP="|---|---|---|"
          TABLE_COV="| :memo: Instructions | ${COV_BADGE} | ${COVERAGE_DELTA} |"
          TABLE_BR="| :twisted_rightwards_arrows: Branches | ${BR_BADGE} | ${BRANCHES_DELTA} |"
        else
          TABLE_HEADER="| Coverage Type | Coverage |"
          TABLE_SEP="|---|---|"
          TABLE_COV="| :memo: Instructions | ${COV_BADGE} |"
          TABLE_BR="| :twisted_rightwards_arrows: Branches | ${BR_BADGE} |"
        fi

        {
          echo '## :test_tube: Code Coverage Report'
          echo ''
          echo "$TABLE_HEADER"
          echo "$TABLE_SEP"
          echo "$TABLE_COV"
          echo "$TABLE_BR"
        } > comment-body.txt

        echo "${{ github.event.pull_request.number }}" > pr-number.txt
    - name: Upload PR comment artifact
      if: ${{ matrix.release_build && github.event_name == 'pull_request' }}
      uses: actions/upload-artifact@v7
      with:
        name: pr-coverage-comment
        path: |
          pr-number.txt
          comment-body.txt
        retention-days: 1