Parallel Brotli Compression in a Github Actions Workflow

github-action-example.yml

# Ubuntu machines have 2 cores, but larger runners can have a lot more
# parallel will auto use number of virtual cores
# brotli, and parallel are both available out of the box on github's ubuntu machines   

jobs:
  build-assets:
    steps:
      - uses: actions/checkout@v3

      # - name: Build
      # some step which creates your `dist`

      - name: CompressFiles
        working-directory: dist
        run: |
          for v in $(tr ',' '\n' <<< "$FILE_EXT")
          do
            find . -maxdepth 4 -type f -name "*.$v" -print | parallel brotli -f -q 11 {}
          done
        env:
          # basically everything but PNG/JPEG,WEBP etc. since images have better per-format compression
          FILE_EXT: 'js,css,html,svg,txt,json,eot,ttf,woff,woff2,pdf,csv,wasm,mem,res,xod,aspx'