Avoid deprecated scala.App

Author: xuwei-k

test/utils/GitFileRepositoryPerformanceTest.scala

@@ -9,81 +9,83 @@ import org.apache.commons.io.IOUtils
 import scala.concurrent.duration.Duration
 import java.util.concurrent.atomic.AtomicLong
 
-object GitFileRepositoryPerformanceTest extends App {
+object GitFileRepositoryPerformanceTest {
+  def main(args: Array[String]): Unit = {
 
-  // Performance test should be performed on the actual Play git repository.
-  // Substitute here with the path to your own git repository to run this test.
-  val repo     = new PlayGitRepository(new File("data/main"))
-  val basePath = "documentation/manual"
+    // Performance test should be performed on the actual Play git repository.
+    // Substitute here with the path to your own git repository to run this test.
+    val repo     = new PlayGitRepository(new File("data/main"))
+    val basePath = "documentation/manual"
 
-  // First, find all the files that we might want to look up
-  val tags     = repo.allTags
-  val allFiles = tags.flatMap { case (_, ref) =>
-    repo.listAllFilesInPath(ref, basePath).map((ref, _))
-  }
-  // Filter markdown files
-  val allMarkdown = allFiles.filter(_._2.endsWith(".md")).toIndexedSeq
-  println("Testing with " + allMarkdown.size + " markdown files")
+    // First, find all the files that we might want to look up
+    val tags     = repo.allTags
+    val allFiles = tags.flatMap { case (_, ref) =>
+      repo.listAllFilesInPath(ref, basePath).map((ref, _))
+    }
+    // Filter markdown files
+    val allMarkdown = allFiles.filter(_._2.endsWith(".md")).toIndexedSeq
+    println("Testing with " + allMarkdown.size + " markdown files")
 
-  def runTest(threads: Int, seconds: Long) = {
-    @volatile var running      = true
-    val findFileWithNameTiming = new AtomicLong()
-    val loadFileTiming         = new AtomicLong()
-    val tasks                  = Future.sequence(for (i <- 0 to threads) yield {
-      Future {
-        var markdownLoaded = 0
+    def runTest(threads: Int, seconds: Long) = {
+      @volatile var running      = true
+      val findFileWithNameTiming = new AtomicLong()
+      val loadFileTiming         = new AtomicLong()
+      val tasks                  = Future.sequence(for (i <- 0 to threads) yield {
+        Future {
+          var markdownLoaded = 0
 
-        while (running) {
-          // Get a random markdown file
-          val (ref, file) = allMarkdown(Random.nextInt(allMarkdown.size))
-          // Strip the path off it, this is how requests come in
-          val name = file.drop(file.lastIndexOf('/') + 1)
-          // Find and then load it
-          val fileRepo = new GitFileRepository(repo, ref, Some(basePath))
+          while (running) {
+            // Get a random markdown file
+            val (ref, file) = allMarkdown(Random.nextInt(allMarkdown.size))
+            // Strip the path off it, this is how requests come in
+            val name = file.drop(file.lastIndexOf('/') + 1)
+            // Find and then load it
+            val fileRepo = new GitFileRepository(repo, ref, Some(basePath))
 
-          def findFileWithName(name: String) = {
-            val start  = System.nanoTime()
-            val result = fileRepo.findFileWithName(name)
-            findFileWithNameTiming.addAndGet(System.nanoTime() - start)
-            result
-          }
+            def findFileWithName(name: String) = {
+              val start  = System.nanoTime()
+              val result = fileRepo.findFileWithName(name)
+              findFileWithNameTiming.addAndGet(System.nanoTime() - start)
+              result
+            }
 
-          def loadFile(path: String) = {
-            val start  = System.nanoTime()
-            val result = fileRepo.loadFile(path)(IOUtils.toString(_, "utf-8"))
-            loadFileTiming.addAndGet(System.nanoTime() - start)
-            result
-          }
+            def loadFile(path: String) = {
+              val start  = System.nanoTime()
+              val result = fileRepo.loadFile(path)(IOUtils.toString(_, "utf-8"))
+              loadFileTiming.addAndGet(System.nanoTime() - start)
+              result
+            }
 
-          markdownLoaded += findFileWithName(name).flatMap(loadFile).map(_ => 1).getOrElse(0)
+            markdownLoaded += findFileWithName(name).flatMap(loadFile).map(_ => 1).getOrElse(0)
+          }
+          markdownLoaded
         }
-        markdownLoaded
-      }
-    })
+      })
 
-    Thread.sleep(seconds * 1000)
-    println("Stopping tests...")
-    running = false
-    val loaded = Await.result(tasks, Duration.Inf).reduce((a, b) => a + b)
+      Thread.sleep(seconds * 1000)
+      println("Stopping tests...")
+      running = false
+      val loaded = Await.result(tasks, Duration.Inf).reduce((a, b) => a + b)
 
-    println("Loaded " + loaded + " files in " + seconds + " seconds")
-    println("That's " + (loaded / seconds) + " files a second")
-    println(s"Total time spent finding markdown files: ${findFileWithNameTiming.get() / 1000000}ms")
-    println(s"Total time spent loading markdown files: ${loadFileTiming.get() / 1000000}ms")
-  }
+      println("Loaded " + loaded + " files in " + seconds + " seconds")
+      println("That's " + (loaded / seconds) + " files a second")
+      println(s"Total time spent finding markdown files: ${findFileWithNameTiming.get() / 1000000}ms")
+      println(s"Total time spent loading markdown files: ${loadFileTiming.get() / 1000000}ms")
+    }
 
-  println()
-  println("Test run 1:")
-  println()
-  runTest(10, 10)
+    println()
+    println("Test run 1:")
+    println()
+    runTest(10, 10)
 
-  println()
-  println("Test run 2:")
-  println()
-  runTest(10, 10)
+    println()
+    println("Test run 2:")
+    println()
+    runTest(10, 10)
 
-  println()
-  println("Test run 3:")
-  println()
-  runTest(10, 10)
+    println()
+    println("Test run 3:")
+    println()
+    runTest(10, 10)
+  }
 }