Purpose¶

You want to isolate domain from infrastructure. Ports (interfaces) live in domain, adapters depend on domain but not vice versa. Each bounded context should only depend on its own domain.

Configuration¶

Using named captures, you can enforce that each bounded context only depends on its own domain:

rules:
  - name: domain-no-infra
    modules: contexts.{context}.domain
    description: Domain must not depend on infrastructure or other contexts
    allow:
      standard_library: [dataclasses, typing, abc]
      third_party: []
      local: [contexts.{context}.domain, shared.domain]

  - name: adapters-depend-on-domain
    modules: contexts.{context}.adapters
    description: Adapters can depend on their own domain but not other contexts
    allow:
      standard_library: ["*"]
      third_party: ["*"]
      local:
        - contexts.{context}.adapters
        - contexts.{context}.domain
        - shared

Result¶

With {context}, contexts.boards.domain can only import from contexts.boards.domain and shared.domain — not from contexts.auth.domain:

contexts/boards/domain/service.py:2
    [domain-no-infra] Domain must not depend on infrastructure or other contexts
    contexts.boards.domain.service → contexts.auth.domain.models (local)

Found 1 violation(s).