Create a zip file that only includes files in Git

gitzip.gradle

task srcZip(type:Zip) {
   appendix = 'gitsources'
   from project.projectDir

   doFirst {
        Set excludeList = [relativePath(archivePath).toString()]
        
        def p = "git status --ignored --porcelain .".execute([], project.projectDir)
        def writer = new StringWriter()
        p.consumeProcessOutput(writer, null)
        p.waitFor()
	writer.toString().eachLine { l ->
            def (status,path) = l.split(' ')
	    excludeList << path
	}
        
        exclude {
            String path = it.directory?"${it.path}${File.separator}":it.path             
            excludeList.contains(path)
        }
  }
}