.credo.exs

%{
  configs: [
    %{
      name: "default",
      strict: true,
      files: %{
        included: [
          "lib/",
          "test/"
        ],
        excluded: [
          ~r"/_build/",
          ~r"/deps/",
          ~r"/test/support/"
        ]
      },
      plugins: [],
      requires: [],
      parse_timeout: 5000,
      color: true,
      checks: %{
        enabled: [
          # Consistency
          {Credo.Check.Consistency.ExceptionNames, []},
          {Credo.Check.Consistency.LineEndings, []},
          {Credo.Check.Consistency.ParameterPatternMatching, []},
          {Credo.Check.Consistency.SpaceAroundOperators, []},
          {Credo.Check.Consistency.SpaceInParentheses, []},
          {Credo.Check.Consistency.TabsOrSpaces, []},
          {Credo.Check.Consistency.UnusedVariableNames, [force: :anonymous]},

          # Design
          {Credo.Check.Design.AliasUsage,
           [priority: :normal, if_nested_deeper_than: 2, if_called_more_often_than: 1]},
          {Credo.Check.Design.DuplicatedCode, [priority: :normal]},
          {Credo.Check.Design.TagTODO, [priority: :normal]},
          {Credo.Check.Design.TagFIXME, []},

          # Readability
          {Credo.Check.Readability.AliasOrder, []},
          {Credo.Check.Readability.FunctionNames, []},
          {Credo.Check.Readability.LargeNumbers, [only_greater_than: 99_999]},
          {Credo.Check.Readability.MaxLineLength, [priority: :normal, max_length: 120]},
          {Credo.Check.Readability.ModuleAttributeNames, []},
          {Credo.Check.Readability.ModuleDoc, []},
          {Credo.Check.Readability.ModuleNames, []},
          {Credo.Check.Readability.ParenthesesInCondition, []},
          {Credo.Check.Readability.ParenthesesOnZeroArityDefs, []},
          {Credo.Check.Readability.PipeIntoAnonymousFunctions, []},
          {Credo.Check.Readability.PredicateFunctionNames, []},
          {Credo.Check.Readability.PreferImplicitTry, []},
          {Credo.Check.Readability.RedundantBlankLines, []},
          {Credo.Check.Readability.Semicolons, []},
          {Credo.Check.Readability.SeparateAliasRequire, []},
          {Credo.Check.Readability.SingleFunctionToBlockPipe, []},
          {Credo.Check.Readability.SinglePipe, []},
          {Credo.Check.Readability.SpaceAfterCommas, []},
          {Credo.Check.Readability.Specs, [priority: :high]},
          {Credo.Check.Readability.StrictModuleLayout, []},
          {Credo.Check.Readability.StringSigils, []},
          {Credo.Check.Readability.TrailingBlankLine, []},
          {Credo.Check.Readability.TrailingWhiteSpace, []},
          {Credo.Check.Readability.UnnecessaryAliasExpansion, []},
          {Credo.Check.Readability.VariableNames, []},
          {Credo.Check.Readability.WithCustomTaggedTuple, []},
          {Credo.Check.Readability.WithSingleClause, []},

          # Refactoring
          {Credo.Check.Refactor.Apply, []},
          {Credo.Check.Refactor.CondStatements, []},
          {Credo.Check.Refactor.CyclomaticComplexity, [max_complexity: 9]},
          {Credo.Check.Refactor.DoubleBooleanNegation, []},
          {Credo.Check.Refactor.FilterCount, []},
          {Credo.Check.Refactor.FilterFilter, []},
          {Credo.Check.Refactor.FunctionArity, [max_arity: 5]},
          {Credo.Check.Refactor.LongQuoteBlocks, []},
          {Credo.Check.Refactor.MapJoin, []},
          {Credo.Check.Refactor.MatchInCondition, []},
          {Credo.Check.Refactor.IoPuts, []},
          {Credo.Check.Refactor.ModuleDependencies,
           [
             priority: :low,
             max_deps: 20,
             files: %{excluded: [~r"/type_mapper\.ex$", ~r"/filter_builder\.ex$"]}
           ]},
          {Credo.Check.Refactor.NegatedConditionsInUnless, []},
          {Credo.Check.Refactor.NegatedConditionsWithElse, []},
          {Credo.Check.Refactor.NegatedIsNil, []},
          {Credo.Check.Refactor.Nesting, [max_nesting: 3]},
          {Credo.Check.Refactor.PassAsyncInTestCases, []},
          {Credo.Check.Refactor.PipeChainStart, [priority: :normal]},
          {Credo.Check.Refactor.RedundantWithClauseResult, []},
          {Credo.Check.Refactor.RejectReject, []},
          {Credo.Check.Refactor.UnlessWithElse, []},
          {Credo.Check.Refactor.UtcNowTruncate, []},
          {Credo.Check.Refactor.WithClauses, []},

          # Warnings
          {Credo.Check.Warning.ApplicationConfigInModuleAttribute, []},
          {Credo.Check.Warning.BoolOperationOnSameValues, []},
          {Credo.Check.Warning.Dbg, []},
          {Credo.Check.Warning.ExpensiveEmptyEnumCheck, []},
          {Credo.Check.Warning.IExPry, []},
          {Credo.Check.Warning.IoInspect, []},

          {Credo.Check.Warning.LeakyEnvironment, []},
          {Credo.Check.Warning.MapGetUnsafePass, []},
          {Credo.Check.Warning.MissedMetadataKeyInLoggerConfig, []},
          {Credo.Check.Warning.MixEnv, []},
          {Credo.Check.Warning.OperationOnSameValues, []},
          {Credo.Check.Warning.OperationWithConstantResult, []},
          {Credo.Check.Warning.RaiseInsideRescue, []},
          {Credo.Check.Warning.SpecWithStruct, []},
          {Credo.Check.Warning.UnsafeExec, []},
          {Credo.Check.Warning.ForbiddenModule,
           [modules: [{IO, "Use Logger instead of IO"}], files: %{excluded: [~r"/test/"]}]},
          {Credo.Check.Warning.UnsafeToAtom, []},
          {Credo.Check.Warning.UnusedEnumOperation, []},
          {Credo.Check.Warning.UnusedFileOperation, []},
          {Credo.Check.Warning.UnusedKeywordOperation, []},
          {Credo.Check.Warning.UnusedListOperation, []},
          {Credo.Check.Warning.UnusedPathOperation, []},
          {Credo.Check.Warning.UnusedRegexOperation, []},
          {Credo.Check.Warning.UnusedStringOperation, []},
          {Credo.Check.Warning.UnusedTupleOperation, []},
          {Credo.Check.Warning.WrongTestFileExtension, []}
        ],
        disabled: [
          # Disabled - formatter handles these
          {Credo.Check.Readability.BlockPipe, []},
          {Credo.Check.Readability.ImplTrue, []},
          {Credo.Check.Readability.MultiAlias, []},
          {Credo.Check.Readability.NestedFunctionCalls, []},
          {Credo.Check.Readability.OnePipePerLine, []},

          # Disabled - not compatible with Elixir >= 1.7.0
          {Credo.Check.Warning.LazyLogging, []},

          # Disabled - not applicable to this project
          {Credo.Check.Refactor.VariableRebinding, []}
        ]
      }
    }
  ]
}