Naive Gradle replacement for Ant <uptodate/> task

UpToDate.groovy

/**
 * Checks if the file at <tt>targetFilePath</tt> has a last modified time later
 * than <tt>srcFilePath</tt>.
 *
 * At the time of writing, the goal of this method was to create a replacement for
 * Apache Ant's <tt>uptodate</tt> task. This is a naive implementation of that
 * task.
 *
 * @param srcFilePath   fully qualified path to source file
 * @param targetPath    fully qualified path to the target
 *
 * @return  <tt>true</tt> if File#lastModified() of target >= File#lastModified() of source
 *
 * @see https://ant.apache.org/manual/Tasks/uptodate.html
 * @see https://github.com/apache/ant/blob/master/src/main/org/apache/tools/ant/taskdefs/UpToDate.java
 */
boolean upToDate(String srcFilePath, String targetFilePath) {
    File srcFile = file(srcFilePath)
    File targetFile = file(targetFilePath)

    boolean current = targetFile.lastModified() >= srcFile.lastModified()

    // Log results
    if (current) { // target is newer
        logger.quiet("File:[${targetFile.getName()}] is newer than [${srcFile.getName()}]")
    }
    else {  // target is older
        if (!srcFile.exists()) {
            logger.quiet("Source file:[${srcFile.exists()}] does not exist")
        }
        if (!targetFile.exists()) {
            logger.quiet("Target file:[${targetFile.getName()}] does not exist")
        }
        if (srcFile.exists() && targetFile.exists()) {
            logger.quiet("File:[${srcFile.getName()}] is newer than [${targetFile.getName()}]")
        }
    }

    return current
}