Added tool to create timestamps.txt fragment from directory.

This is intended to be used on a directory containing ITS directories.
It recursively walks the tree and generates timestamps entries for
each file based on the file creation date/times.

tools/get-its-dates/src/main/scala/Finder.scala

@@ -0,0 +1,67 @@
+import java.io._
+import java.nio.file._
+import java.nio.file.attribute._
+import java.nio.file.FileVisitResult._
+import java.nio.file.FileVisitOption._
+import java.nio.file.Files
+import java.nio.file.FileSystems
+import java.nio.file.Path
+import java.nio.file.StandardCopyOption._
+import scala.io.Source
+import scala.language.postfixOps
+import scala.util.Try
+import java.time.ZonedDateTime
+import java.time.format.DateTimeFormatter
+import java.time.ZoneId
+import java.time.LocalDateTime
+import java.util.TimeZone
+import java.util.Locale
+import java.time.Instant
+import java.util.Calendar
+import java.time.ZoneOffset
+
+class Finder(showDirs: Boolean, prefix: String) extends SimpleFileVisitor[Path] {
+  val format = DateTimeFormatter.ofPattern("yyyyMMddHHmm.ss")
+  val now: Calendar = Calendar.getInstance()
+  val timeZone: TimeZone = now.getTimeZone()
+  val cal: Calendar = Calendar.getInstance(timeZone, Locale.US)
+
+  override def visitFile(file: Path, attrs: BasicFileAttributes): FileVisitResult = {
+    if (attrs.isRegularFile) {
+      val absolutePath = file.toAbsolutePath.toString
+      val pathToPrint = absolutePath.replace(prefix, "")
+      val attrs =  Files.readAttributes(file, classOf[BasicFileAttributes])
+      val creationDate = attrs.creationTime()
+
+      cal.setTimeInMillis(creationDate.toMillis)
+
+      val dstOffset = cal.get(Calendar.DST_OFFSET)
+      val adjustedCreationDate  = dstOffset  match {
+        case 0 =>
+          creationDate.toMillis()
+        case 3600000 =>
+          creationDate.toMillis() + dstOffset
+        case _ =>
+          creationDate.toMillis()
+      }
+
+      val ldt: LocalDateTime = LocalDateTime.ofEpochSecond(adjustedCreationDate / 1000, 0, ZoneOffset.ofTotalSeconds(cal.get(Calendar.ZONE_OFFSET) / 1000))
+      System.out.println(s"${pathToPrint} ${ldt.format(format)}")
+    }
+    return CONTINUE
+  }
+
+  override def preVisitDirectory(dir: Path, attrs: BasicFileAttributes): FileVisitResult = {
+    if (showDirs)
+      println(s"Processing directory: ${dir.toAbsolutePath()}")
+    return CONTINUE
+  }
+
+  override def visitFileFailed(file: Path, ioe: IOException): FileVisitResult = {
+    System.err.println(ioe)
+    return CONTINUE
+  }
+
+  def done() = {
+  }
+}

tools/get-its-dates/src/main/scala/GetItsDates.scala

@@ -0,0 +1,18 @@
+import java.nio.file._
+
+object GetItsDates extends App {
+  if (this.args.size != 2) {
+    println(s"Syntax is:")
+    println(s"  get-its-datess <root directory> <prefix>")
+  }
+  else {
+    val rootDir = this.args(0)
+    val prefix = this.args(1)
+    val finder = new Finder(false, prefix)
+    Files.walkFileTree(
+      Paths.get(rootDir),
+      finder
+    )
+    finder.done()
+  }
+}