.credo.exs

%{
  configs: [
    %{
      name: "default",
      files: %{
        included: ["lib/", "test/"],
        excluded: [~r"/_build/", ~r"/deps/"]
      },
      plugins: [],
      requires: [],
      strict: true,
      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, []},

          # ── Design ───────────────────────────────────────────────────
          {Credo.Check.Design.SkipTestWithoutComment, []},
          {Credo.Check.Design.TagFIXME, []},
          {Credo.Check.Design.TagTODO, [exit_status: 0]},

          # ── Readability ──────────────────────────────────────────────
          {Credo.Check.Readability.AliasOrder, []},
          {Credo.Check.Readability.FunctionNames, []},
          {Credo.Check.Readability.ImplTrue, []},
          {Credo.Check.Readability.LargeNumbers, []},
          {Credo.Check.Readability.MaxLineLength, [max_length: 120]},
          {Credo.Check.Readability.ModuleAttributeNames, []},
          {Credo.Check.Readability.ModuleDoc, []},
          {Credo.Check.Readability.ModuleNames, []},
          {Credo.Check.Readability.OnePipePerLine, []},
          {Credo.Check.Readability.ParenthesesInCondition, []},
          {Credo.Check.Readability.ParenthesesOnZeroArityDefs, []},
          {Credo.Check.Readability.PipeIntoAnonymousFunctions, []},
          {Credo.Check.Readability.PredicateFunctionNames, []},
          {Credo.Check.Readability.RedundantBlankLines, []},
          {Credo.Check.Readability.Semicolons, []},
          {Credo.Check.Readability.SpaceAfterCommas, []},
          {Credo.Check.Readability.Specs, []},
          {Credo.Check.Readability.TrailingBlankLine, []},
          {Credo.Check.Readability.TrailingWhiteSpace, []},
          {Credo.Check.Readability.UnnecessaryAliasExpansion, []},
          {Credo.Check.Readability.VariableNames, []},
          {Credo.Check.Readability.WithSingleClause, []},

          # ── Refactor ─────────────────────────────────────────────────
          {Credo.Check.Refactor.AppendSingleItem, []},
          {Credo.Check.Refactor.Apply, []},
          {Credo.Check.Refactor.CaseTrivialMatches, []},
          {Credo.Check.Refactor.CondStatements, []},
          {Credo.Check.Refactor.CyclomaticComplexity, [max_complexity: 10]},
          {Credo.Check.Refactor.DoubleBooleanNegation, []},
          {Credo.Check.Refactor.FilterCount, []},
          {Credo.Check.Refactor.FilterFilter, []},
          {Credo.Check.Refactor.FilterReject, []},
          {Credo.Check.Refactor.FunctionArity, [max_arity: 5]},
          {Credo.Check.Refactor.MapJoin, []},
          {Credo.Check.Refactor.MapMap, []},
          {Credo.Check.Refactor.NegatedConditionsInUnless, []},
          {Credo.Check.Refactor.NegatedConditionsWithElse, []},
          {Credo.Check.Refactor.Nesting, [max_nesting: 3]},
          {Credo.Check.Refactor.PerceivedComplexity, [max_complexity: 10]},
          {Credo.Check.Refactor.RedundantWithClauseResult, []},
          {Credo.Check.Refactor.RejectFilter, []},
          {Credo.Check.Refactor.RejectReject, []},
          {Credo.Check.Refactor.UnlessWithElse, []},
          {Credo.Check.Refactor.WithClauses, []},

          # ── Warning ──────────────────────────────────────────────────
          {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.MapGetUnsafePass, []},
          {Credo.Check.Warning.MixEnv, []},
          {Credo.Check.Warning.OperationOnSameValues, []},
          {Credo.Check.Warning.RaiseInsideRescue, []},
          {Credo.Check.Warning.SpecWithStruct, []},
          {Credo.Check.Warning.StructFieldAmount, []},
          {Credo.Check.Warning.UnsafeExec, []},
          {Credo.Check.Warning.UnsafeToAtom, []},
          {Credo.Check.Warning.UnusedEnumOperation, []},
          {Credo.Check.Warning.UnusedFileOperation, []},
          {Credo.Check.Warning.UnusedKeywordOperation, []},
          {Credo.Check.Warning.UnusedListOperation, []},
          {Credo.Check.Warning.UnusedMapOperation, []},
          {Credo.Check.Warning.UnusedPathOperation, []},
          {Credo.Check.Warning.UnusedRegexOperation, []},
          {Credo.Check.Warning.UnusedStringOperation, []},
          {Credo.Check.Warning.UnusedTupleOperation, []},
          {Credo.Check.Warning.WrongTestFileExtension, []},

          # ── Disabled (with reason) ───────────────────────────────────
          # AliasUsage - Too noisy for this codebase structure
          {Credo.Check.Design.AliasUsage, false},
          # LongQuoteBlocks - Maude commands can be lengthy
          {Credo.Check.Refactor.LongQuoteBlocks, false},
          # StrictModuleLayout - Allows flexibility in module organization
          {Credo.Check.Readability.StrictModuleLayout, false},
          # SinglePipe - Single-element pipes are common for readability in data transformations
          {Credo.Check.Readability.SinglePipe, false},
          # PipeChainStart - Regex.scan/run results are commonly piped
          {Credo.Check.Refactor.PipeChainStart, false},
          # PreferImplicitTry - Explicit try can be clearer for error handling
          {Credo.Check.Readability.PreferImplicitTry, false},
          # LazyLogging - Not compatible with Elixir >= 1.7.0
          {Credo.Check.Warning.LazyLogging, false},
          {Credo.Check.Consistency.UnusedVariableNames, [force: :anonymous]}
        ]
      }
    }
  ]
}