.github/workflows/maven.yaml

name: Publish snapshot icu4j.jar to GH Maven
on:
  release:
    types: [created]
  workflow_dispatch:
    # To trigger the Env Test workflow manually, follow the instructions in
    # https://docs.github.com/en/actions/managing-workflow-runs/manually-running-a-workflow

env:
  SHARED_MVN_ARGS: '--show-version'

permissions:
  contents: read

jobs:
  publish:
    runs-on: ubuntu-22.04  # Updated in BRS
    permissions:
      packages: write
    outputs:
      version: ${{ steps.mvn-proj-version.outputs.version }}
      version-type: ${{ steps.mvn-proj-version-type.outputs.version-type }}
    steps:
      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493 # v4.1.1
      - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
        with:
          distribution: 'temurin'
          java-version: '11'
      - name: Store Maven project version
        id: mvn-proj-version
        run: |
          cd icu4j
          version="`mvn help:evaluate -Dexpression=project.version -q -DforceStdout`"
          echo "version=$version"  # debug/info logging for our own purposes, before sending to Github
          echo "version=$version" >> "$GITHUB_OUTPUT"
      # Set version-type=snapshot for tags that contain SNAPSHOT,
      # as well as for unicode-org-internal artifacts with a dash like `icu4j-for-cldr`.
      - name: Assess Maven version release/snapshot
        id: mvn-proj-version-type
        run: |
          if echo "${{ steps.mvn-proj-version.outputs.version }}" | grep -E "\-|SNAPSHOT"
          then echo "version-type=snapshot" >> "$GITHUB_OUTPUT"
          else echo "version-type=release" >> "$GITHUB_OUTPUT"
          fi
      - name: Prevent manual deployment attempts of full release
        if: github.event_name == 'workflow_dispatch' && steps.mvn-proj-version-type.outputs.version-type == 'release'
        run: |
          echo "Manual deployments of publishing artifacts should only be attempted for snapshot versions"
          exit 1;
      - name: Build artifacts (icu4j)
        run: |
          cd icu4j
          mvn ${SHARED_MVN_ARGS} clean install -DskipTests -DskipIT -P with_sources
      # For snapshot versions, publish icu4j
      - name: Deploy to Github (snapshot version)
        if: steps.mvn-proj-version-type.outputs.version-type == 'snapshot'
        run: |
          echo Github Ref ${GITHUB_REF} @ ${GITHUB_SHA};
          cd icu4j
          mvn deploy ${SHARED_MVN_ARGS} \
            -pl :icu4j,:icu4j-root \
            -DaltDeploymentRepository=github::https://maven.pkg.github.com/${GITHUB_REPOSITORY} \
            -P with_sources
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
# Note: can use 0.0.0-${GITHUB_SHA} as the version for hash-based.
# i.e. build on every commit