snapshot.yml

name: "Publish: manual OR automatic snapshot"

# If images are given (separated by spaces), then they are assumed to be produced by
# Maven and have release and dev tags.

on:
  workflow_dispatch:
  workflow_call:
    inputs:
      images:
        description: 'Images to push'
        required: false
        type: string
  push:
    branches:
      - 'main'

jobs:
  snapshot:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout latest code
        uses: actions/checkout@v3

      - name: Setup Java & Maven
        uses: actions/setup-java@v3
        with:
          java-version: 17
          distribution: 'temurin'
          cache: 'maven'
          server-id: ossrh
          server-username: MAVEN_USERNAME
          server-password: MAVEN_PASSWORD
          gpg-private-key: ${{ secrets.MAVEN_GPG_KEY }}
          gpg-passphrase: MAVEN_GPG_PASSPHRASE

      - name: Get project version from POM
        id: project_version
        run: echo "VERSION=`mvn help:evaluate -Dexpression=project.version -q -DforceStdout`" >> $GITHUB_OUTPUT

      # Only execute for -SNAPSHOT versions
      - name: Publish SNAPSHOT
        if: ${{ endsWith(steps.project_version.outputs.version, '-SNAPSHOT') }}
        run: mvn -B -ntp clean deploy
        env:
          MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
          MAVEN_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
          MAVEN_GPG_PASSPHRASE: ${{ secrets.MAVEN_GPG_PASSPHRASE }}

      - name: Login to GHCR
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Push Docker images to GHCR
        run: |
          for name in ${{ inputs.images }}
          do
            docker push $name:${{ steps.project_version.outputs.version }}
          done