Generating a third-party license report in Android Studio

build.gradle

ext {
    PATH_TO_SCRIPT = '../scripts/collect_licenses.py'
    PATH_TO_SOURCE_ROOT = 'src'
    PATH_TO_ANOTHER_SOURCE_ROOT = '../libraries/MyLibrary/src'
}

task generateLicenseReport(type:Exec) {
    def script = file(PATH_TO_SCRIPT)
    def sourceRoot = file(PATH_TO_SOURCE_ROOT)
    def anotherSourceRoot = file(PATH_TO_ANOTHER_SOURCE_ROOT)
    standardOutput = file('src/main/assets/licenses.html').newOutputStream()
    commandLine 'python', script.absolutePath,
            sourceRoot.absolutePath, anotherSourceRoot.absolutePath
}