Verify bundle checksum in Liferay Workspace

build.gradle

// Make sure we can use the classes from the Download plugin, like the Verify below
buildscript {
    repositories { jcenter() }
    dependencies { classpath group: "de.undercouch", name: "gradle-download-task", version: "4.0.4" }
}
apply plugin: de.undercouch.gradle.tasks.download.DownloadTaskPlugin

[
        'SHA-256': 'liferay.workspace.bundle.checksum[sha-256]',
        'MD5':     'liferay.workspace.bundle.checksum[md5]',
].each { checksumAlgorithm, expectedSumPropName ->
    // Verify checksum using given algorithm, but only if the project property
    // with the expected checksum was provided
    def expectedSum = findProperty(expectedSumPropName)

    if (expectedSum) {
        def bundleFileName = gradle.liferayWorkspace.bundleUrl.substring(gradle.liferayWorkspace.bundleUrl.lastIndexOf('/') + 1)

        def verifyBundle = tasks.register("verifyBundle${checksumAlgorithm}", Verify) {
            src new File(gradle.liferayWorkspace.bundleCacheDir, bundleFileName)
            algorithm checksumAlgorithm
            checksum expectedSum

            doFirst {
                logger.info "[workspace-extra] Verifying checksum of the used bundle file '${src}', as found in the bundleCacheDir"
            }
        }

        tasks.findByName('downloadBundle').configure {
            finalizedBy verifyBundle
        }
    }
}

Requires:

• Gradle 5.x (because of tasks.register)