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Use NIO Files.getLastModifiedTime for hashing

This commit is contained in:
Eugene Yokota 2018-04-05 04:22:16 -04:00
parent 04d6a8b44c
commit ad3692b2df
1 changed files with 12 additions and 1 deletions
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13
main-actions/src/main/scala/sbt/compiler/Eval.scala
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@ -509,11 +509,22 @@ private[sbt] object Eval {
if (f.isDirectory)
(f listFiles classDirFilter) foreach { x =>
fileModifiedHash(x, digester)
} else digester.update(bytes(IO.getModifiedTimeOrZero(f)))
} else digester.update(bytes(JavaMilli.getModifiedTimeOrZero(f)))
digester.update(bytes(f.getAbsolutePath))
}
// This uses NIO instead of the JNA-based IO.getModifiedTimeOrZero for speed
object JavaMilli {
import java.nio.file.{ Files, NoSuchFileException }
def getModifiedTimeOrZero(f: File): Long =
try {
Files.getLastModifiedTime(f.toPath).toMillis
} catch {
case e: NoSuchFileException => 0L
}
}
def fileExistsBytes(f: File): Array[Byte] =
bytes(f.exists) ++
bytes(f.getAbsolutePath)