Custom JaCoCo Gradle Plugin - exclude files in report

Question

I'm new to Gradle and Groovy. I have something like this in my build.gradle file:

jacocoTestReport {
    afterEvaluate {
        classDirectories.setFrom(files(classDirectories.files.collect {
            fileTree(dir: it, exclude: ['aaa/bbb.*', 'ccc/ddd/*',])
        }))
    }
}

Now, I need this in my custom plugin. But I'm not sure how to set these excludes to it. I have something like this:

project.afterEvaluate { p ->
    def reportTask = project.tasks.findByName('jacocoTestReport') as JacocoReport
    reportTask.classDirectories.setFrom(reportTask.classDirectories.files.) // Now what?
}

And I'm stuck here. Can you help me sort this out, please?

EDIT1:

I tried to solve it using patternSet.

println '----------------BEFORE REPORT----------------------'
def patternSet = new PatternSet()
def filesAsString = reportTask.classDirectories.files.collect { file ->
    file.path
}
patternSet.setIncludes(filesAsString)
patternSet.setExcludes(['aaa/bbb.*', 'ccc/ddd/*'])
def excludeFiles = reportTask.classDirectories.asFileTree.matching(patternSet).files
println filesAsString
println excludeFiles
def files = reportTask.classDirectories.asFileTree.minus(excludeFiles)
reportTask.classDirectories.setFrom(files)
println '----------------AFTER REPORT----------------------'
println reportTask.classDirectories.files

Result is not what I expected:

----------------BEFORE REPORT----------------------
[aaa\bbb\build\classes\java\main, aaa\bbb\build\classes\groovy\main, aaa\bbb\build\resources\main]
[]
----------------AFTER REPORT----------------------
[]

No exclude directories at all.

JiKra · Accepted Answer · 2020-07-22T12:32:51.853

So, I somehow solved it.

def ex = ['aaa/bbb/*','ccc/ddd.*','eee/fff/*']
def ft = reportTask.classDirectories.asFileTree.matching {
    ex.each {
        exclude it
    }
}

Don't ask me how Gradle wraps this since it's not a Groovy syntax, but it works. My opinion is that Gradle somehow implements AntlrTask as a pattern matcher since it implements interface 'PatternFilterable' and documentation mentions Ant. I tried to solve it in pure Groovy using PatternSet which is another class implementing PatternFilterable but I haven't succeded.

But the simple exclude 'aaa/bbb/*' works OK. It doesn't take list so I had to do it using forEach cycle. Maybe there is more simple and elegant way and I'll try to play with it but this solution is good enough.

Custom JaCoCo Gradle Plugin - exclude files in report

1 Answers1