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Excellent

Excellent detects commonly regarded bad code snippets like empty rescue blocks etc. It combines roodi (http://github.com/martinjandrews/roodi), most checks of reek ("http://github.com/kevinrutherford/reek “:http://github.com/kevinrutherford/reek), flog (”http://github.com/seattlerb/flog ":http://github.com/seattlerb/flog) and also adds some Rails specific checks.

Contributions are very welcome!

Checks

Excellent has the following checks:

• AbcMetricMethodCheck – reports methods with an ABC metric score that is higher than the threshold.
• AssignmentInConditionalCheck – reports conditionals that test an assignment.
• CaseMissingElseCheck – reports case statements that don’t have an else clause.
• ClassLineCountCheck – reports classes which have more lines than the threshold.
• ClassNameCheck – reports classes with bad names.
• ControlCouplingCheck – reports methods that check the value of a parameter to decide which execution path to take.
• CyclomaticComplexityBlockCheck – reports blocks with a cyclomatic complexity metric score that is higher than the threshold.
• CyclomaticComplexityMethodCheck – reports methods with a cyclomatic complexity metric score that is higher than the threshold.
• DuplicationCheck – reports duplicated code.
• EmptyRescueBodyCheck – reports empty rescue blocks.
• FlogBlockCheck – reports blocks with a Flog metric score that is higher than the threshold.
• FlogClassCheck – reports classes with a Flog metric score that is higher than the threshold.
• FlogMethodCheck – reports methods with a Flog metric score that is higher than the threshold.
• ForLoopCheck – reports code that uses for loops.
• MethodLineCountCheck – reports methods which have more lines than the threshold.
• MethodNameCheck – reports methods with bad names.
• ModuleLineCountCheck – reports modules which have more lines than the threshold.
• ModuleNameCheck – reports modules with bad names.
• NestedIteratorsCheck – reports nested iterators.
• ParameterNumberCheck – reports method and blocks that have more parameters than the threshold.
• SingletonVariableCheck – reports class variables.

Rails specific Checks

Excellent also has some checks specific to Ruby on Rails:

• AttrAccessibleCheck – reports ActiveRecord models that do not specify attr_accessible.
• AttrProtectedCheck – reports ActiveRecord models that specify attr_protected.