enable cops one by one

[bkleinen]

enable all disabled cops in .rubocop.yml one by one (those at the bottom tend to have less offenses), and fix the offenses. After fixing a few, commit with fixed # , comment here which have been fixed and open a new issue with the remaining ones.

see https://docs.rubocop.org/rubocop/1.64/index.html

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Layout/LineLength: Max: 194 Enabled: false

Metrics/BlockLength: Enabled: false Max: 26

Metrics/ClassLength: Enabled: false Max: 152

Lint/NonAtomicFileOperation: Enabled: false

Metrics/MethodLength: Enabled: false

Style/MixinUsage: Enabled: false

Lint/ConstantDefinitionInBlock: Enabled: false

Style/Documentation: Enabled: false

Metrics/AbcSize: Enabled: false

Naming/MethodParameterName: Enabled: false

Metrics/PerceivedComplexity: Enabled: false

Metrics/CyclomaticComplexity: Enabled: false

Lint/MissingSuper: Enabled: false

Security/Eval: Enabled: false

Style/OptionalBooleanParameter: Enabled: false

Lint/EmptyBlock: Enabled: false

Naming/FileName: Enabled: false

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Style/MultilineBlockChain: Enabled: false

Lint/ShadowingOuterLocalVariable: Enabled: false

Lint/RescueException: Enabled: false

Lint/UnreachableCode: Enabled: false

Lint/UnderscorePrefixedVariableName: Enabled: false

Naming/AccessorMethodName: Enabled: false

Style/ClassVars: Enabled: false

Lint/DuplicateBranch: Enabled: false

Naming/MethodName: Enabled: false

Lint/UnreachableLoop: Enabled: false

Metrics/BlockNesting: Enabled: false

Style/TernaryParentheses: Enabled: false

Naming/VariableNumber: Enabled: false