build.yml

name: Java Build SNAPSHOT and push to Maven Central
# 

on: 
  workflow_dispatch:
  push:
    branches:
      - main
      #- develop

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: setup JDK 1.8
        uses: actions/setup-java@v1
        with:
          java-version: 1.8
          server-id: ossrh
          server-username: MAVEN_USERNAME
          server-password: MAVEN_PASSWORD
          gpg-private-key: ${{ secrets.OSSRH_GPG_SECRET_KEY}}
          gpg-passphrase: MAVEN_GPG_PASSPHRASE

      - name: Cache Maven packages
        uses: actions/cache@v2
        with:
          path: ~/.m2
          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
          restore-keys: ${{ runner.os }}-m2
      - name: Build and publish package
        run: mvn -B package deploy
        env:
          MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
          MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
          MAVEN_GPG_PASSPHRASE: ${{ secrets.OSSRH_GPG_SECRET_KEY_PASSWORD }}