Improve exclude rules

[mr-archano]

Tracked in JIRA by PT-313

Scope of the PR

While integrating v0.1 of the plugin in one of our projects we realised that the exclude directive in the plugin extension is only supporting file patterns, but there is no way to specify an entire source set for instance.

Considerations/Implementation Details

Introduced SourceFilter as thin delegate holding all the exclude rules to be applied to a specific SourceTask. File patterns are supported as well as Files or collections of them, eg:

exclude project.fileTree('src/test/java')
exclude project.file('src/main/java/foo/bar/Constants.java')
exclude project.sourceSets.main.java.srcDirs
exclude '**/*Test.java'

Testing

SourceFilter is fully tested to cover all the scenarios above. A bunch of integration tests have been added for each configurator to validate the exclude functionality in both Java and Android projects.

Thanks to His Groovyness @devisnik for the help with the refactoring of the SourceFilter. It looks waaaaay better than expected ✨ .

[frapontillo]

So is inject some kind of fold?

[mr-archano]

yep. why inject instead of fold or the more popular reduce is beyond me :/

[frapontillo]

HAX so much

[takecare]

😲