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[ANN] Announcing GMetrics 0.3 - Source Code Metrics for Groovy

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[ANN] Announcing GMetrics 0.3 - Source Code Metrics for Groovy

chrismair
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The GMetrics project provides calculation and reporting of size and complexity metrics for Groovy source code. GMetrics provides an Ant Task that scans Groovy source code, applying a set of metrics, and generates an HTML or XML report of the results.

 

GMetrics includes total, average, minimum and maximum values for four metrics:

  • Cyclomatic Complexity  (NEW)
  • ABC Size/Complexity
  • Lines per method
  • Lines per class

Version 0.3 includes:

  • A new SingleSeriesHtmlReportWriter. Creates HTML report for single series (univariate) of metric values.    This single series is specified by a Metric, a level (package, class or method) and a single function (total, average, minimum, maximum). e.g., metric:"ABC", function:"average", level:"method". It also supports other options, e.g. greaterThan:"50", lessThan:"100", sort:"descending", maxResults:"20".

         So, you can create reports such as:

    • Show the average cyclomatic complexity for all classes.
    • Show the top 20 classes by number of source lines.
    • Show all methods with an ABC size/complexity score greater than 30.

 

  • For BasicHtmlReportWriter and XmlReportWriter: Add support for filtering metric values included within the reports by metric name, level ("package", "class" and "method") or function ("total", "average", "minimum" and "maximum"). e.g.,

        metrics="CyclomaticComplexity, ABC"

        levels="CyclomaticComplexity=class,method; ABC=method"

        functions="ABC=average; CyclomaticComplexity=total,maximum"

 

  • Fix: CyclomaticComplexityMetric, AbcComplexityMetric, MethodLineCountMetric: Apply to constructors as well as regular methods.

 

Take a look at a Sample GMetrics Report.

 

Chris Mair

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