analysis_options for Flutter

analysis_options.yaml

# based on https://github.com/flutter/flutter/blob/master/analysis_options.yaml

analyzer:
  strong-mode:
    implicit-dynamic: false
  errors:
    missing_required_param: warning
    missing_return: warning
    todo: ignore
    sdk_version_async_exported_from_core: ignore

linter:
  rules:
    - always_declare_return_types
    - always_put_control_body_on_new_line
    - always_require_non_null_named_parameters
    # - always_specify_types # we love type inference
    - annotate_overrides
    # - avoid_as # this options is too strict
    - avoid_bool_literals_in_conditional_expressions
    - avoid_classes_with_only_static_members
    - avoid_empty_else
    - avoid_field_initializers_in_const_classes
    - avoid_function_literals_in_foreach_calls
    - avoid_init_to_null
    - avoid_null_checks_in_equality_operators
    - avoid_relative_lib_imports
    - avoid_renaming_method_parameters
    - avoid_return_types_on_setters
    - avoid_returning_null_for_void
    - avoid_slow_async_io
    - avoid_types_as_parameter_names
    - avoid_types_on_closure_parameters # we love type inference
    - avoid_unused_constructor_parameters
    - avoid_void_async
    - await_only_futures
    - camel_case_types
    - cancel_subscriptions
    - close_sinks
    - control_flow_in_finally
    - directives_ordering
    - empty_catches
    - empty_constructor_bodies
    - empty_statements
    # - flutter_style_todos # this options is too strict
    - hash_and_equals
    - implementation_imports
    - iterable_contains_unrelated_type
    - library_names
    - library_prefixes
    - list_remove_unrelated_type
    - no_adjacent_strings_in_list
    - no_duplicate_case_values
    - non_constant_identifier_names
    - omit_local_variable_types # we love type inference
    - overridden_fields
    - package_api_docs
    - package_names
    - package_prefixed_library_names
    - parameter_assignments # we prefer immutability
    - prefer_adjacent_string_concatenation
    - prefer_asserts_in_initializer_lists
    - prefer_collection_literals
    - prefer_conditional_assignment
    - prefer_const_constructors
    - prefer_const_constructors_in_immutables
    - prefer_const_declarations
    - prefer_const_literals_to_create_immutables
    - prefer_contains
    - prefer_equal_for_default_values
    - prefer_final_fields
    - prefer_final_locals
    - prefer_foreach
    - prefer_generic_function_type_aliases
    - prefer_if_null_operators
    - prefer_initializing_formals
    - prefer_inlined_adds
    - prefer_is_empty
    - prefer_is_not_empty
    - prefer_iterable_whereType
    - prefer_single_quotes
    - prefer_spread_collections
    - prefer_typing_uninitialized_variables
    - prefer_void_to_null
    - recursive_getters
    - slash_for_doc_comments
    - sort_constructors_first
    - sort_pub_dependencies
    - sort_unnamed_constructors_first
    - test_types_in_equals
    - throw_in_finally
    - type_init_formals
    - unnecessary_brace_in_string_interps
    - unnecessary_const
    - unnecessary_getters_setters
    - unnecessary_new
    - unnecessary_null_aware_assignments
    - unnecessary_null_in_if_null_operators
    - unnecessary_overrides
    - unnecessary_parenthesis
    - unnecessary_statements
    - unnecessary_this
    - unrelated_type_equality_checks
    - use_full_hex_values_for_flutter_colors
    - use_rethrow_when_possible
    - valid_regexps