An easy way to add CI/CD to your processing project. Be sure to set REPO_NAME_PATH in line 21 first.

processing.yml

name: Processing

on: 
  - push
  - pull_request

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: ifP1/setup-processing@v1.0.2
        with:
          version: 3.5.4
      - name: Building...
        run: processing-java --sketch=$PWD --build
        
  build:
    if: startsWith(github.ref, 'refs/tags/v')
    needs: [test]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: ifP1/setup-processing@v1.0.2
        with:
          version: 3.5.4
      - name: Get file prefix
        id: get_file
        run: echo ::set-output name=PREFIX::${GITHUB_REPOSITORY/${{ github.repository_owner }}\//}-${GITHUB_REF/refs\/tags\//}
      - name: Exporting windows application...
        run: processing-java --sketch=$PWD --output=out/${{steps.get_file.outputs.PREFIX}}-windows --no-java --platform=windows --export
      - name: Exporting linux application...
        run: processing-java --sketch=$PWD --output=out/${{steps.get_file.outputs.PREFIX}}-linux --no-java --platform=linux --export
      - name: Compressing and Packaging...
        run: |
          cd out
          mkdir export
          tar -czvf export/${{steps.get_file.outputs.PREFIX}}-linux.tar.gz ${{steps.get_file.outputs.PREFIX}}-linux/
          zip -r export/${{steps.get_file.outputs.PREFIX}}-windows.zip ${{steps.get_file.outputs.PREFIX}}-windows/
      - name: Upload a Build Artifact
        uses: actions/upload-artifact@v2
        with:
          path: out/export/*

  release:
    needs: [build]
    runs-on: ubuntu-latest
    steps:
      - name: Download a Build Artifact
        uses: actions/download-artifact@v2
      - name: GitHub Release
        uses: softprops/action-gh-release@v0.1.5
        with:
          prerelease: ${{contains(github.ref, '-') || contains(github.ref, 'alpha') || contains(github.ref, 'beta') || contains(github.ref, 'rc')}}
          files: |
            artifact/*
        env:
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}

  deploy:
    if: ${{!contains(github.ref, '-') && !contains(github.ref, 'alpha') && !contains(github.ref, 'beta') && !contains(github.ref, 'rc') && startsWith(github.ref, 'refs/tags/v')}}
    needs: [test]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Generating .txt files
        run: |
          mkdir -p out/txt
          for f in *.pde; do
            cp "$f" "out/txt/${f//.pde/.txt}";
          done
      - name: Upload ftp
        uses: sebastianpopp/ftp-action@releases/v2
        with:
          host: ${{secrets.FTP_HOST}}
          user: ${{secrets.FTP_USER}}
          password: ${{ secrets.FTP_PASSWORD }}
          localDir: "out/txt"
          remoteDir: ${{secrets.FTP_REMOTE_DIR}}