analysis_options.yaml

analyzer:
 strong-mode:
   implicit-casts: false
 errors:
   unused_element: error
   unused_import: error
   unused_local_variable: error
   dead_code: error

   # Allow importing .template.dart files without an analyzer error.
   uri_has_not_been_generated: ignore

   # The noise of deprecations isn't worth the effort.
   deprecated_member_use: ignore
linter:
  rules:
    - avoid_empty_else
    - avoid_init_to_null
    - avoid_null_checks_in_equality_operators
    - await_only_futures
    - camel_case_types
    - cancel_subscriptions
    - control_flow_in_finally
    - directives_ordering
    - empty_catches
    - empty_constructor_bodies
    - empty_statements
    - hash_and_equals
    - iterable_contains_unrelated_type
    - library_names
    - library_prefixes
    - list_remove_unrelated_type
    - only_throw_errors
    - overridden_fields
    - package_api_docs
    - package_names
    - package_prefixed_library_names
    - prefer_final_fields
    - prefer_is_not_empty
    - slash_for_doc_comments
    - test_types_in_equals
    - throw_in_finally
    - type_init_formals
    - unnecessary_brace_in_string_interps
    - unrelated_type_equality_checks
    - valid_regexps