Calc/Check CRC32 (and store in xattr)

import java.util.concurrent.*
import net.filebot.hash.*

def threadPoolSize = Runtime.getRuntime().availableProcessors()
def executor = Executors.newFixedThreadPool(threadPoolSize)

executor.invokeAll(args.getFiles{ it.isVideo() }.collect{ f ->
    return {
        def attr_hash = f.xattr['crc32']
        def calc_hash = VerificationUtilities.computeHash(f, HashType.SFV)

        println "$attr_hash $calc_hash $f"

        if (attr_hash == null) {
            log.warning "set xattr crc32 for [$f]"
            f.xattr['crc32'] = calc_hash
        } else if (attr_hash != calc_hash) {
            log.warning "crc32 mismatch (expected $attr_hash, actual: $calc_hash) for [$f]"
        }
    }
})*.get()