publish_to_maven_central.yml

# This workflow will build a Java project with Maven and publish artifact to Maven Central (https://search.maven.org)
#
# After deploy to https://s01.oss.sonatype.org finished, manual steps is required :
# - Go to: https://s01.oss.sonatype.org/#stagingRepositories
# - Check upload and if all is right, "Close" corresponding Staging Repository
# - "Release" corresponding Staging Repository
# - Wait some hours and then check availability of release on Maven central: https://search.maven.org/search?q=g:io.ecocode
#
# Additional information:
# - https://docs.github.com/en/actions/publishing-packages/publishing-java-packages-with-maven#publishing-packages-to-the-maven-central-repository
# - https://blogs.itemis.com/en/github-actions-releasing-artifacts-into-maven-central

name: Publish to Maven Central

on:
  workflow_dispatch:

jobs:
  publish:
    name: Deploy to Maven central
    runs-on: ubuntu-latest

    steps:
      # Checks out a copy of project's repository.
      - name: Checkout
        uses: actions/checkout@v3

      # Sets up the Java JDK, and also configures the Maven `settings.xml` file to add authentication for the
      # `ossrh` repository using the `OSSRH_USERNAME` and `OSSRH_TOKEN` environment variables.
      - name: Set up Maven Central Repository
        uses: actions/setup-java@v3
        with:
          java-version: '11'
          distribution: 'adopt'
          server-id: 'ossrh'  # must match the serverId configured for the nexus-staging-maven-plugin in `pom.xml`
          server-username: OSSRH_USERNAME
          server-password: OSSRH_TOKEN
          gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }} # Substituted with the value stored in the referenced secret
          gpg-passphrase: MAVEN_GPG_PASSPHRASE # Env var that holds the key's passphrase

      - name: Cache Maven packages
        uses: actions/cache@v1
        with:
          path: ~/.m2
          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
          restore-keys: ${{ runner.os }}-m2

      # Runs the Maven command to publish to the `ossrh` repository.
      # The `OSSRH_USERNAME` environment variable will be set with the contents of your `OSSRH_USERNAME` secret,
      # and the `OSSRH_TOKEN` environment variable will be set with the contents of your `OSSRH_TOKEN` secret.
      - name: Publish package
        run: mvn --batch-mode deploy -Pmaven-central-publishing
        env:
          OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
          OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
          MAVEN_GPG_PASSPHRASE: ${{ secrets.MAVEN_GPG_PASSPHRASE }}