.credo.exs

%{
  configs: [
    %{
      name: "default",
      files: %{
        included: ["lib/", "src/", "test/", "web/", "apps/"],
        excluded: [~r"/_build/", ~r"/deps/", ~r"/node_modules/"]
      },
      strict: true,
      color: true,
      checks: [
        # Consistency

        {Credo.Check.Consistency.MultiAliasImportRequireUse, false},

        # Design

        {Credo.Check.Design.AliasUsage, false},
        {Credo.Check.Design.DuplicatedCode, [exit_status: 0]},
        {Credo.Check.Design.TagTODO, [exit_status: 0]},
        {Credo.Check.Design.TagFIXME, [exit_status: 0]},

        # Readability

        {Credo.Check.Readability.FunctionNames, []},
        {Credo.Check.Readability.LargeNumbers, []},
        # MaxLineLength is already enforced by formatter
        # credo throws warnings for commented lines, which is just annoying
        {Credo.Check.Readability.MaxLineLength, false},
        {Credo.Check.Readability.ModuleAttributeNames, []},
        {Credo.Check.Readability.ModuleDoc, false},
        {Credo.Check.Readability.ModuleNames, []},
        {Credo.Check.Readability.ParenthesesOnZeroArityDefs, []},
        {Credo.Check.Readability.ParenthesesInCondition, []},
        {Credo.Check.Readability.PredicateFunctionNames, []},
        {Credo.Check.Readability.PreferImplicitTry, []},
        {Credo.Check.Readability.RedundantBlankLines, []},
        {Credo.Check.Readability.StringSigils, []},
        {Credo.Check.Readability.TrailingBlankLine, []},
        {Credo.Check.Readability.TrailingWhiteSpace, []},
        {Credo.Check.Readability.VariableNames, []},
        {Credo.Check.Readability.Semicolons, []},
        {Credo.Check.Readability.SpaceAfterCommas, []},

        # Refactor

        {Credo.Check.Refactor.ABCSize, false},
        {Credo.Check.Refactor.AppendSingleItem, []},
        {Credo.Check.Refactor.DoubleBooleanNegation, []},
        {Credo.Check.Refactor.CondStatements, false},
        {Credo.Check.Refactor.CyclomaticComplexity, []},
        # This should be a product of our common sense and detailed in reviews
        {Credo.Check.Refactor.FunctionArity, false},
        {Credo.Check.Refactor.LongQuoteBlocks, []},
        {Credo.Check.Refactor.MatchInCondition, []},
        {Credo.Check.Refactor.NegatedConditionsInUnless, []},
        {Credo.Check.Refactor.NegatedConditionsWithElse, []},
        {Credo.Check.Refactor.Nesting, []},
        {Credo.Check.Refactor.PipeChainStart, false},
        {Credo.Check.Refactor.UnlessWithElse, []},
        {Credo.Check.Refactor.VariableRebinding, []},

        # Warning

        {Credo.Check.Warning.BoolOperationOnSameValues, []},
        {Credo.Check.Warning.ExpensiveEmptyEnumCheck, []},
        {Credo.Check.Warning.IExPry, []},
        {Credo.Check.Warning.IoInspect, []},
        {Credo.Check.Warning.LazyLogging, []},
        {Credo.Check.Warning.OperationOnSameValues, []},
        {Credo.Check.Warning.OperationWithConstantResult, []},
        {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.RaiseInsideRescue, []},
        {Credo.Check.Warning.MapGetUnsafePass, []}
      ]
    }
  ]
}