Adopt .editorconfig as single source of truth for code style and add formatting CI gate

.editorconfig

@@ -1,5 +1,327 @@
 root = true
 
+###############################
+# Core EditorConfig Options   #
+###############################
+
+[*]
+indent_style = space
+indent_size = 4
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{xml,csproj,props,targets,slnx,json,yml,yaml}]
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
+
+###############################
+# .NET / C# Code Style        #
+###############################
+
 [*.cs]
+
+#### Organize usings ####
+dotnet_sort_system_directives_first = true
+dotnet_separate_import_directive_groups = false
+
+#### this. and Me. preferences ####
+dotnet_style_qualification_for_field = false:warning
+dotnet_style_qualification_for_property = false:warning
+dotnet_style_qualification_for_method = false:warning
+dotnet_style_qualification_for_event = false:warning
+
+#### Language keywords vs BCL types preferences ####
+dotnet_style_predefined_type_for_locals_parameters_members = true:warning
+dotnet_style_predefined_type_for_member_access = true:warning
+
+#### Parentheses preferences ####
+dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:silent
+dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:silent
+dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:silent
+dotnet_style_parentheses_in_other_operators = never_if_unnecessary:silent
+
+#### Modifier preferences ####
+dotnet_style_require_accessibility_modifiers = for_non_interface_members:warning
+
+#### Expression-level preferences ####
+dotnet_style_object_initializer = true:suggestion
+dotnet_style_collection_initializer = true:suggestion
+dotnet_style_explicit_tuple_names = true:warning
+dotnet_style_prefer_inferred_tuple_names = true:suggestion
+dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion
+dotnet_style_prefer_auto_properties = true:suggestion
+dotnet_style_prefer_conditional_expression_over_assignment = true:suggestion
+dotnet_style_prefer_conditional_expression_over_return = true:suggestion
+dotnet_style_prefer_compound_assignment = true:suggestion
+dotnet_style_prefer_simplified_interpolation = true:suggestion
+dotnet_style_prefer_simplified_boolean_expressions = true:suggestion
+
+#### Null-checking preferences ####
+dotnet_style_coalesce_expression = true:suggestion
+dotnet_style_null_propagation = true:suggestion
+dotnet_style_prefer_is_null_check_over_reference_equality_method = true:warning
+
+#### File header ####
+file_header_template = Copyright (c) GraphZen LLC. All rights reserved.\nLicensed under the GraphZen Community License. See the LICENSE file in the project root for license information.
+
+###############################
+# C# Code Style Rules         #
+###############################
+
+#### var preferences ####
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = true:suggestion
+
+#### Expression-bodied members ####
+csharp_style_expression_bodied_methods = true:suggestion
+csharp_style_expression_bodied_constructors = true:suggestion
+csharp_style_expression_bodied_operators = true:suggestion
+csharp_style_expression_bodied_properties = true:suggestion
+csharp_style_expression_bodied_indexers = true:suggestion
+csharp_style_expression_bodied_accessors = true:suggestion
+csharp_style_expression_bodied_lambdas = true:silent
+csharp_style_expression_bodied_local_functions = true:suggestion
+
+#### Pattern matching preferences ####
+csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
+csharp_style_pattern_matching_over_as_with_null_check = true:suggestion
+csharp_style_prefer_switch_expression = true:suggestion
+csharp_style_prefer_pattern_matching = true:suggestion
+csharp_style_prefer_not_pattern = true:suggestion
+
+#### Null-checking preferences ####
+csharp_style_throw_expression = true:suggestion
+csharp_style_conditional_delegate_call = true:suggestion
+
+#### Modifier preferences ####
+csharp_preferred_modifier_order = public,private,protected,internal,file,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,required,volatile,async:warning
+
+#### Code-block preferences ####
+csharp_prefer_braces = true:warning
+csharp_prefer_simple_using_statement = true:suggestion
+csharp_style_namespace_declarations = file_scoped:warning
+
+#### Expression-level preferences ####
+csharp_prefer_simple_default_expression = true:suggestion
+csharp_style_prefer_local_over_anonymous_function = true:suggestion
+csharp_style_prefer_index_operator = true:suggestion
+csharp_style_prefer_range_operator = true:suggestion
+csharp_style_implicit_object_creation_when_type_is_apparent = true:suggestion
+csharp_style_prefer_tuple_swap = true:suggestion
+csharp_style_prefer_utf8_string_literals = true:suggestion
+csharp_style_deconstructed_variable_declaration = true:suggestion
+csharp_style_inlined_variable_declaration = true:suggestion
+csharp_style_unused_value_assignment_preference = discard_variable:suggestion
+csharp_style_unused_value_expression_statement_preference = discard_variable:silent
+csharp_using_directive_placement = outside_namespace:warning
+
+###############################
+# C# Formatting Rules         #
+###############################
+
+#### New line preferences ####
+csharp_new_line_before_open_brace = all
+csharp_new_line_before_else = true
+csharp_new_line_before_catch = true
+csharp_new_line_before_finally = true
+csharp_new_line_before_members_in_object_initializers = true
+csharp_new_line_before_members_in_anonymous_types = true
+csharp_new_line_between_query_expression_clauses = true
+
+#### Indentation preferences ####
+csharp_indent_case_contents = true
+csharp_indent_switch_labels = true
+csharp_indent_labels = one_less_than_current
+csharp_indent_block_contents = true
+csharp_indent_braces = false
+csharp_indent_case_contents_when_block = true
+
+#### Space preferences ####
+csharp_space_after_cast = false
+csharp_space_after_keywords_in_control_flow_statements = true
+csharp_space_between_parentheses = false
+csharp_space_before_colon_in_inheritance_clause = true
+csharp_space_after_colon_in_inheritance_clause = true
+csharp_space_around_binary_operators = before_and_after
+csharp_space_between_method_declaration_parameter_list_parentheses = false
+csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
+csharp_space_between_method_declaration_name_and_open_parenthesis = false
+csharp_space_between_method_call_parameter_list_parentheses = false
+csharp_space_between_method_call_empty_parameter_list_parentheses = false
+csharp_space_between_method_call_name_and_opening_parenthesis = false
+csharp_space_after_comma = true
+csharp_space_before_comma = false
+csharp_space_after_dot = false
+csharp_space_before_dot = false
+csharp_space_after_semicolon_in_for_statement = true
+csharp_space_before_semicolon_in_for_statement = false
+csharp_space_around_declaration_statements = false
+csharp_space_before_open_square_brackets = false
+csharp_space_between_empty_square_brackets = false
+csharp_space_between_square_brackets = false
+
+#### Wrapping preferences ####
+csharp_preserve_single_line_statements = false
+csharp_preserve_single_line_blocks = true
+
+###############################
+# Naming Conventions           #
+###############################
+
+#### Naming styles ####
+dotnet_naming_style.pascal_case_style.capitalization = pascal_case
+
+dotnet_naming_style.camel_case_style.capitalization = camel_case
+
+dotnet_naming_style.underscore_camel_case_style.capitalization = camel_case
+dotnet_naming_style.underscore_camel_case_style.required_prefix = _
+
+dotnet_naming_style.interface_style.capitalization = pascal_case
+dotnet_naming_style.interface_style.required_prefix = I
+
+dotnet_naming_style.type_parameter_style.capitalization = pascal_case
+dotnet_naming_style.type_parameter_style.required_prefix = T
+
+#### Naming symbols ####
+dotnet_naming_symbols.interface_symbols.applicable_kinds = interface
+dotnet_naming_symbols.interface_symbols.applicable_accessibilities = *
+
+dotnet_naming_symbols.type_parameter_symbols.applicable_kinds = type_parameter
+dotnet_naming_symbols.type_parameter_symbols.applicable_accessibilities = *
+
+dotnet_naming_symbols.type_symbols.applicable_kinds = class, struct, enum, delegate
+dotnet_naming_symbols.type_symbols.applicable_accessibilities = *
+
+dotnet_naming_symbols.method_symbols.applicable_kinds = method
+dotnet_naming_symbols.method_symbols.applicable_accessibilities = *
+
+dotnet_naming_symbols.property_symbols.applicable_kinds = property, event
+dotnet_naming_symbols.property_symbols.applicable_accessibilities = *
+
+dotnet_naming_symbols.public_field_symbols.applicable_kinds = field
+dotnet_naming_symbols.public_field_symbols.applicable_accessibilities = public, internal, protected, protected_internal
+
+dotnet_naming_symbols.private_field_symbols.applicable_kinds = field
+dotnet_naming_symbols.private_field_symbols.applicable_accessibilities = private, private_protected
+
+dotnet_naming_symbols.private_static_readonly_field_symbols.applicable_kinds = field
+dotnet_naming_symbols.private_static_readonly_field_symbols.applicable_accessibilities = private, private_protected
+dotnet_naming_symbols.private_static_readonly_field_symbols.required_modifiers = static, readonly
+
+dotnet_naming_symbols.private_static_field_symbols.applicable_kinds = field
+dotnet_naming_symbols.private_static_field_symbols.applicable_accessibilities = private, private_protected
+dotnet_naming_symbols.private_static_field_symbols.required_modifiers = static
+
+dotnet_naming_symbols.local_symbols.applicable_kinds = local, parameter
+dotnet_naming_symbols.local_symbols.applicable_accessibilities = *
+
+dotnet_naming_symbols.local_function_symbols.applicable_kinds = local_function
+dotnet_naming_symbols.local_function_symbols.applicable_accessibilities = *
+
+dotnet_naming_symbols.const_field_symbols.applicable_kinds = field
+dotnet_naming_symbols.const_field_symbols.applicable_accessibilities = *
+dotnet_naming_symbols.const_field_symbols.required_modifiers = const
+
+dotnet_naming_symbols.namespace_symbols.applicable_kinds = namespace
+dotnet_naming_symbols.namespace_symbols.applicable_accessibilities = *
+
+#### Naming rules ####
+dotnet_naming_rule.interfaces_must_be_prefixed.severity = warning
+dotnet_naming_rule.interfaces_must_be_prefixed.symbols = interface_symbols
+dotnet_naming_rule.interfaces_must_be_prefixed.style = interface_style
+
+dotnet_naming_rule.type_parameters_must_be_prefixed.severity = warning
+dotnet_naming_rule.type_parameters_must_be_prefixed.symbols = type_parameter_symbols
+dotnet_naming_rule.type_parameters_must_be_prefixed.style = type_parameter_style
+
+dotnet_naming_rule.types_must_be_pascal_case.severity = warning
+dotnet_naming_rule.types_must_be_pascal_case.symbols = type_symbols
+dotnet_naming_rule.types_must_be_pascal_case.style = pascal_case_style
+
+dotnet_naming_rule.methods_must_be_pascal_case.severity = warning
+dotnet_naming_rule.methods_must_be_pascal_case.symbols = method_symbols
+dotnet_naming_rule.methods_must_be_pascal_case.style = pascal_case_style
+
+dotnet_naming_rule.properties_must_be_pascal_case.severity = warning
+dotnet_naming_rule.properties_must_be_pascal_case.symbols = property_symbols
+dotnet_naming_rule.properties_must_be_pascal_case.style = pascal_case_style
+
+dotnet_naming_rule.const_fields_must_be_pascal_case.severity = warning
+dotnet_naming_rule.const_fields_must_be_pascal_case.symbols = const_field_symbols
+dotnet_naming_rule.const_fields_must_be_pascal_case.style = pascal_case_style
+
+dotnet_naming_rule.public_fields_must_be_pascal_case.severity = warning
+dotnet_naming_rule.public_fields_must_be_pascal_case.symbols = public_field_symbols
+dotnet_naming_rule.public_fields_must_be_pascal_case.style = pascal_case_style
+
+dotnet_naming_rule.private_static_readonly_fields_must_be_pascal.severity = warning
+dotnet_naming_rule.private_static_readonly_fields_must_be_pascal.symbols = private_static_readonly_field_symbols
+dotnet_naming_rule.private_static_readonly_fields_must_be_pascal.style = pascal_case_style
+
+dotnet_naming_rule.private_static_fields_must_be_underscore_camel.severity = warning
+dotnet_naming_rule.private_static_fields_must_be_underscore_camel.symbols = private_static_field_symbols
+dotnet_naming_rule.private_static_fields_must_be_underscore_camel.style = underscore_camel_case_style
+
+dotnet_naming_rule.private_fields_must_be_underscore_camel.severity = warning
+dotnet_naming_rule.private_fields_must_be_underscore_camel.symbols = private_field_symbols
+dotnet_naming_rule.private_fields_must_be_underscore_camel.style = underscore_camel_case_style
+
+dotnet_naming_rule.locals_must_be_camel_case.severity = warning
+dotnet_naming_rule.locals_must_be_camel_case.symbols = local_symbols
+dotnet_naming_rule.locals_must_be_camel_case.style = camel_case_style
+
+dotnet_naming_rule.local_functions_must_be_pascal_case.severity = warning
+dotnet_naming_rule.local_functions_must_be_pascal_case.symbols = local_function_symbols
+dotnet_naming_rule.local_functions_must_be_pascal_case.style = pascal_case_style
+
+dotnet_naming_rule.namespaces_must_be_pascal_case.severity = warning
+dotnet_naming_rule.namespaces_must_be_pascal_case.symbols = namespace_symbols
+dotnet_naming_rule.namespaces_must_be_pascal_case.style = pascal_case_style
+
+###############################
+# Analyzer Severities          #
+###############################
+
 # IDE0005: Remove unnecessary using directives
 dotnet_diagnostic.IDE0005.severity = warning
+
+# IDE0011: Add braces
+dotnet_diagnostic.IDE0011.severity = warning
+
+# IDE0160/IDE0161: Namespace declaration preferences
+dotnet_diagnostic.IDE0161.severity = warning
+
+# IDE0065: Using directive placement
+dotnet_diagnostic.IDE0065.severity = warning
+
+# IDE0003/IDE0009: this. and Me. preferences
+dotnet_diagnostic.IDE0003.severity = warning
+dotnet_diagnostic.IDE0009.severity = warning
+
+###############################
+# ReSharper Properties         #
+###############################
+
+# Trailing comma in multiline lists
+resharper_trailing_comma_in_multiline_lists = true
+
+# Braces for control flow
+resharper_braces_for_for = required
+resharper_braces_for_foreach = required
+resharper_braces_for_while = required
+
+# Abbreviation overrides (allow AST, QL as valid naming)
+resharper_abbreviations = AST QL
+
+###############################
+# Test Projects                #
+###############################
+
+[test/**/*.cs]
+
+# Disable naming rules for test projects (tests commonly use snake_case for methods, classes, and fields)
+dotnet_diagnostic.IDE1006.severity = none

.gitattributes

@@ -1 +1,4 @@
 * text=auto
+
+*.cs text diff=csharp
+*.sh text eol=lf

.github/workflows/ci.yml

@@ -29,6 +29,9 @@ jobs:
       - name: Build
         run: dotnet build --no-restore --configuration Release
 
+      - name: Check formatting
+        run: dotnet format --verify-no-changes --verbosity diagnostic
+
       - name: Test
         run: dotnet test --no-build --configuration Release --logger "trx;LogFileName=test-results.trx" --collect:"XPlat Code Coverage" --results-directory ./test-results
 

Directory.Build.props

@@ -6,6 +6,9 @@
         <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
         <LangVersion>latest</LangVersion>
         <ImplicitUsings>enable</ImplicitUsings>
+        <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
+        <GenerateDocumentationFile>true</GenerateDocumentationFile>
+        <NoWarn>$(NoWarn);CS1591;CS1587</NoWarn>
     </PropertyGroup>
 
     <ItemGroup>