chore: added CI and linter rules

.github/workflows/ci.yml

@@ -0,0 +1,18 @@
+name: CI
+on: push
+
+jobs:
+  flutter_test:
+    name: Run flutter test and analyze
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: "12.x"
+      - uses: subosito/flutter-action@v1
+        with:
+          channel: "stable"
+      - run: flutter pub get
+      - run: flutter analyze
+      - run: flutter test

analysis_options.yaml

@@ -4,25 +4,166 @@
 # The issues identified by the analyzer are surfaced in the UI of Dart-enabled
 # IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
 # invoked from the command line by running `flutter analyze`.
-
-# The following line activates a set of recommended lints for Flutter apps,
-# packages, and plugins designed to encourage good coding practices.
 include: package:flutter_lints/flutter.yaml
 
-linter:
-  # The lint rules applied to this project can be customized in the
-  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
-  # included above or to enable additional rules. A list of all available lints
-  # and their documentation is published at https://dart.dev/lints.
-  #
-  # Instead of disabling a lint rule for the entire project in the
-  # section below, it can also be suppressed for a single line of code
-  # or a specific dart file by using the `// ignore: name_of_lint` and
-  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
-  # producing the lint.
-  rules:
-    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
-    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
-
 # Additional information about this file can be found at
 # https://dart.dev/guides/language/analysis-options
+linter:
+  rules:
+    always_use_package_imports: true
+    avoid_empty_else: true
+    avoid_relative_lib_imports: true
+    avoid_slow_async_io: true
+    avoid_type_to_string: true
+    avoid_types_as_parameter_names: true
+    close_sinks: true
+    comment_references: true
+    control_flow_in_finally: true
+    discarded_futures: true
+    empty_statements: true
+    hash_and_equals: true
+    collection_methods_unrelated_type: true
+    literal_only_boolean_expressions: true
+    no_adjacent_strings_in_list: true
+    no_duplicate_case_values: true
+    prefer_void_to_null: true
+    test_types_in_equals: true
+    throw_in_finally: true
+    unnecessary_statements: true
+    unrelated_type_equality_checks: true
+    unsafe_html: true
+    valid_regexps: true
+    always_declare_return_types: true
+    always_put_control_body_on_new_line: true
+    annotate_overrides: true
+    avoid_bool_literals_in_conditional_expressions: true
+    avoid_catching_errors: true
+    avoid_classes_with_only_static_members: true
+    avoid_double_and_int_checks: true
+    avoid_equals_and_hash_code_on_mutable_classes: true
+    avoid_escaping_inner_quotes: true
+    avoid_field_initializers_in_const_classes: true
+    avoid_final_parameters: true
+    avoid_function_literals_in_foreach_calls: true
+    avoid_implementing_value_types: true
+    avoid_init_to_null: true
+    avoid_js_rounded_ints: true
+    avoid_multiple_declarations_per_line: true
+    avoid_null_checks_in_equality_operators: true
+    avoid_positional_boolean_parameters: true
+    avoid_private_typedef_functions: true
+    avoid_redundant_argument_values: true
+    avoid_renaming_method_parameters: true
+    avoid_return_types_on_setters: true
+    avoid_returning_null_for_void: true
+    avoid_returning_this: true
+    avoid_setters_without_getters: true
+    avoid_shadowing_type_parameters: true
+    avoid_single_cascade_in_expression_statements: true
+    avoid_unused_constructor_parameters: true
+    avoid_void_async: true
+    await_only_futures: true
+    camel_case_extensions: true
+    camel_case_types: true
+    cast_nullable_to_non_nullable: true
+    conditional_uri_does_not_exist: true
+    constant_identifier_names: true
+    curly_braces_in_flow_control_structures: true
+    deprecated_consistency: true
+    directives_ordering: true
+    do_not_use_environment: true
+    empty_catches: true
+    empty_constructor_bodies: true
+    eol_at_end_of_file: true
+    exhaustive_cases: true
+    file_names: true
+    flutter_style_todos: true
+    implementation_imports: true
+    join_return_with_assignment: true
+    leading_newlines_in_multiline_strings: true
+    library_names: true
+    library_prefixes: true
+    library_private_types_in_public_api: true
+    no_leading_underscores_for_library_prefixes: true
+    no_leading_underscores_for_local_identifiers: true
+    no_runtimeType_toString: true
+    non_constant_identifier_names: true
+    noop_primitive_operations: true
+    null_check_on_nullable_type_parameter: true
+    null_closures: true
+    only_throw_errors: true
+    overridden_fields: true
+    package_prefixed_library_names: true
+    parameter_assignments: true
+    prefer_adjacent_string_concatenation: true
+    prefer_asserts_in_initializer_lists: true
+    prefer_asserts_with_message: true
+    prefer_collection_literals: true
+    prefer_conditional_assignment: true
+    prefer_constructors_over_static_methods: true
+    prefer_final_fields: true
+    prefer_final_in_for_each: true
+    prefer_final_locals: true
+    prefer_for_elements_to_map_fromIterable: true
+    prefer_foreach: true
+    prefer_function_declarations_over_variables: true
+    prefer_generic_function_type_aliases: true
+    prefer_if_elements_to_conditional_expressions: true
+    prefer_if_null_operators: true
+    prefer_initializing_formals: true
+    prefer_inlined_adds: true
+    prefer_int_literals: true
+    prefer_interpolation_to_compose_strings: true
+    prefer_is_empty: true
+    prefer_is_not_empty: true
+    prefer_is_not_operator: true
+    prefer_iterable_whereType: true
+    prefer_mixin: true
+    prefer_null_aware_method_calls: true
+    prefer_null_aware_operators: true
+    prefer_spread_collections: true
+    prefer_typing_uninitialized_variables: true
+    provide_deprecation_message: true
+    recursive_getters: true
+    sized_box_shrink_expand: true
+    slash_for_doc_comments: true
+    tighten_type_of_initializing_formals: true
+    type_annotate_public_apis: true
+    type_init_formals: true
+    unawaited_futures: true
+    unnecessary_await_in_return: true
+    unnecessary_brace_in_string_interps: true
+    unnecessary_const: true
+    unnecessary_constructor_name: true
+    unnecessary_getters_setters: true
+    unnecessary_lambdas: true
+    unnecessary_late: true
+    unnecessary_new: true
+    unnecessary_null_aware_assignments: true
+    unnecessary_null_aware_operator_on_extension_on_nullable: true
+    unnecessary_null_in_if_null_operators: true
+    unnecessary_nullable_for_final_variable_declarations: true
+    unnecessary_overrides: true
+    unnecessary_parenthesis: true
+    unnecessary_raw_strings: true
+    unnecessary_string_escapes: true
+    unnecessary_string_interpolations: true
+    unnecessary_this: true
+    unnecessary_to_list_in_spreads: true
+    use_colored_box: true
+    use_decorated_box: true
+    use_enums: true
+    use_function_type_syntax_for_parameters: true
+    use_if_null_to_convert_nulls_to_bools: true
+    use_is_even_rather_than_modulo: true
+    use_named_constants: true
+    use_raw_strings: true
+    use_rethrow_when_possible: true
+    use_setters_to_change_properties: true
+    use_string_buffers: true
+    use_test_throws_matchers: true
+    use_to_and_as_if_applicable: true
+    void_checks: true
+    depend_on_referenced_packages: true
+    package_names: true
+    secure_pubspec_urls: true