Update directory-watcher.

Supersedes #466

Author: ckipp01

build.sbt

@@ -213,7 +213,7 @@ lazy val mdoc = project
       "com.googlecode.java-diff-utils" % "diffutils" % "1.3.0",
       "io.get-coursier" % "interface" % V.coursier,
       "com.vladsch.flexmark" % "flexmark-all" % "0.62.2",
-      "io.methvin" % "directory-watcher" % "0.12.0",
+      "io.methvin" % "directory-watcher" % "0.15.0",
       // live reload
       "io.undertow" % "undertow-core" % "2.2.5.Final",
       "org.jboss.xnio" % "xnio-nio" % "3.8.4.Final",

mdoc/src/main/scala-2/mdoc/internal/cli/MainOps.scala

@@ -2,9 +2,8 @@ package mdoc.internal.cli
 
 import com.vladsch.flexmark.parser.Parser
 import io.methvin.watcher.DirectoryChangeEvent
-import java.nio.file.Files
-import java.nio.file.StandardCopyOption
-import java.util.concurrent.Executors
+import io.methvin.watcher.hashing.FileHash
+import io.methvin.watcher.hashing.FileHasher
 import mdoc.Reporter
 import mdoc.internal.BuildInfo
 import mdoc.internal.io.IO
@@ -16,16 +15,18 @@ import mdoc.internal.markdown.LinkHygiene
 import mdoc.internal.markdown.Markdown
 import mdoc.internal.pos.DiffUtils
 import metaconfig.Configured
+
+import java.nio.file.Files
+import java.nio.file.Path
+import java.nio.file.StandardCopyOption
+import java.util.concurrent.Executors
+import scala.collection.concurrent.TrieMap
+import scala.collection.mutable
 import scala.meta.Input
 import scala.meta.internal.io.FileIO
 import scala.meta.internal.io.PathIO
 import scala.meta.io.AbsolutePath
 import scala.util.control.NonFatal
-import io.methvin.watcher.hashing.FileHasher
-import scala.collection.concurrent.TrieMap
-import java.nio.file.Path
-import io.methvin.watcher.hashing.HashCode
-import scala.collection.mutable
 
 final class MainOps(
     context: Context
@@ -185,7 +186,7 @@ final class MainOps(
     }
   }
 
-  val hashes = mutable.Map.empty[Path, HashCode]
+  val hashes = mutable.Map.empty[Path, FileHash]
   def handleWatchEvent(event: DirectoryChangeEvent): Unit = {
     val path = AbsolutePath(event.path())
     settings.toInputFile(path) match {