The Dart command line tool which helps to improve code quality

Reports:

• Cyclomatic complexity of methods
• Too long methods
• Number of Arguments
• Number of Methods

Output formats:

• Plain terminal
• JSON
• HTML
• Codeclimate

Simple usage:

pub global activate dart_code_metrics
metrics lib

Full usage:

Usage: metrics [options...] <directories>
-h, --help                                             Print this usage information.
-r, --reporter=<console>                               The format of the output of the analysis
                                                       [console (default), json, html, codeclimate]

    --cyclomatic-complexity=<20>                       Cyclomatic complexity threshold
                                                       (defaults to "20")

    --lines-of-code=<50>                               Lines of code threshold
                                                       (defaults to "50")

    --number-of-arguments=<4>                          Number of arguments threshold
                                                       (defaults to "4")

    --root-folder=<./>                                 Root folder
                                                       (defaults to current directory)

    --ignore-files=<{/**.g.dart,/**.template.dart}>    Filepaths in Glob syntax to be ignored
                                                       (defaults to "{/**.g.dart,/**.template.dart}")

    --verbose
    --set-exit-on-violation-level=<warning>            Set exit code 2 if code violations same or higher level than selected are detected
                                                       [noted, warning, alarm]

Use as library

See example/example.dart

Use as analyzer plugin

A plugin for the Dart analyzer library package providing rules support from dart_code_metrics.

Usage

1. Add dependency to pubspec.yaml

   dev_dependencies:
     dart_code_metrics: ^1.5.1

2. Add settings to analysis_options.yaml

   analyzer:
     plugins:
       - dart_code_metrics
   
   dart_code_metrics:
     metrics:
       cyclomatic-complexity: 20
       number-of-arguments: 4
     metrics-exclude:
       - test/**
     rules:
       - newline-before-return
       - no-boolean-literal-compare
       - no-empty-block
       - prefer-trailing-comma-for-collection

Rules

• avoid-preserve-whitespace-false
• binary-expression-operand-order
• double-literal-format
• newline-before-return
• no-boolean-literal-compare
• no-empty-block
• no-magic-number
• prefer-intl-name
• prefer-trailing-comma-for-collection