Gradle checkstyle with suppression filter module

build.gradle

//Gist note this is snippet from root build.gradle in project with subprojects

checkstyle {
	// use one common config file for all subprojects
	configFile = project(':').file('config/checkstyle/checkstyle.xml')
	configProperties = [ "suppressionFile" : project(':').file('config/checkstyle/suppressions.xml')]
}

checkstyle.xml

<module name="SuppressionFilter">
  <property name="file" value="${suppressionFile}"/>
</module>

This was so clutch, thanks so much!

I also added a default value so that I could use the same XML file from IntelliJ's checkstyle plugin:

<module name="SuppressionFilter">
	<property name="file" value="${suppressionFile}" default="suppressions.xml"/>
</module>