Bubbles chart: documentation

Author: Halleck45

.phpmetrics.yml.dist

@@ -15,4 +15,6 @@ default:
             html:   ./log/phpmetrics.html
             csv:    ./log/phpmetrics.csv
         violations:
-            xml:    ./log/violations.xml
+            xml:    ./log/violations.xml
+        chart:
+            bubbles: ./log/bubbles.svg

README.md

@@ -107,6 +107,8 @@ The file should be a valid yaml file. For example:
             csv:    ./log/phpmetrics.csv
         violations:
             xml:    ./log/violations.xml
+        chart:
+            bubbles: ./log/bubbles.svg
 
     # condition of failure
     failure: average.maintenabilityIndex < 50 or sum.loc > 10000

src/Hal/Application/Command/RunMetricsCommand.php

@@ -64,7 +64,7 @@ protected function configure()
                     'report-json', null, InputOption::VALUE_REQUIRED, 'Path to save detailed report in JSON format. Example: /tmp/report.json'
                 )
                 ->addOption(
-                    'chart-bubbles', null, InputOption::VALUE_REQUIRED, 'Path to save Bubbles chart, in SVG format. Example: /tmp/chart.svg'
+                    'chart-bubbles', null, InputOption::VALUE_REQUIRED, 'Path to save Bubbles chart, in SVG format. Example: /tmp/chart.svg. Graphviz **IS** required'
                 )
                 ->addOption(
                     'level', null, InputOption::VALUE_REQUIRED, 'Depth of summary report', 0