build.yaml

targets:
  # This setup exists so that the main entrypoint (web/main.dart) gets compiled
  # with dartdevc for debug builds while the worker is compiled with dart2js
  # (since workers don't support the JS moduled emitted by dartdevc).
  # In release builds (`--release` on the CLI), both entrypoints are compiled
  # with dart2js.
  #
  # If you're ok with compiling everything with dart2js, just use
  # `compiler: dartj2s` on the options of the default target and ignore the two
  # additional targets here.
  dart2js_archives:
    auto_apply_builders: false
    dependencies: [":$default", ":worker"]
    builders:
      build_web_compilers:dart2js_archive_extractor:
        enabled: true
  worker:
    auto_apply_builders: false
    dependencies: [":$default"]
    builders:
      build_web_compilers:entrypoint:
        enabled: true
        generate_for:
          - example/web/worker.dart
        options:
          compiler: dart2js
      build_web_compilers:dart2js_archive_extractor:
        enabled: false

  $default:
    builders:
      build_web_compilers:entrypoint:
        generate_for:
          include:
            - "example/web/**"
          # This one is compiled in the other target
          exclude:
            - "example/web/worker.dart"
      # We have a designated target for this step.
      build_web_compilers:dart2js_archive_extractor:
        enabled: false