Squashed 'examples/scala-js/' content from commit 47311ba

git-subtree-dir: examples/scala-js
git-subtree-split: 47311ba693f949f204f27ea9475bb63425fbd4f3

1 files changed, 60 insertions, 0 deletions

diff --git a/tools/shared/src/main/scala/scala/scalajs/tools/classpath/builder/DirTraverser.scala b/tools/shared/src/main/scala/scala/scalajs/tools/classpath/builder/DirTraverser.scala
new file mode 100644
index 0000000..6609b29
--- /dev/null
+++ b/tools/shared/src/main/scala/scala/scalajs/tools/classpath/builder/DirTraverser.scala
@@ -0,0 +1,60 @@
+/*                     __                                               *\
+**     ________ ___   / /  ___      __ ____  Scala.js tools             **
+**    / __/ __// _ | / /  / _ | __ / // __/  (c) 2013-2014, LAMP/EPFL   **
+**  __\ \/ /__/ __ |/ /__/ __ |/_// /_\ \    http://scala-js.org/       **
+** /____/\___/_/ |_/____/_/ | |__/ /____/                               **
+**                          |/____/                                     **
+\*                                                                      */
+
+
+package scala.scalajs.tools.classpath.builder
+
+import scala.scalajs.tools.io._
+import scala.scalajs.tools.jsdep.JSDependencyManifest
+
+import scala.collection.mutable
+
+trait DirTraverser extends ClasspathContentHandler with FileSystem {
+
+  /** Traverses elements, returns a version string */
+  protected def traverseDir(dir: File): String = {
+    val versions = mutable.SortedSet.empty[String]
+
+    recurseDir(dir, "", versions)
+
+    // Construct version
+    CacheUtils.joinVersions(versions.toSeq: _*)
+  }
+
+  /** Recursively adds the Scala.js classpath entries in a directory */
+  private def recurseDir(dir: File, dirPath: String,
+      versions: mutable.SortedSet[String]): Unit = {
+    val files = listFiles(dir)
+    for (file <- files) {
+      val name = getName(file)
+      if (isDirectory(file)) {
+        recurseDir(file, dirPath + name + "/", versions)
+      } else {
+        val path = dirPath + name
+        path match {
+          case JSDependencyManifest.ManifestFileName =>
+            versions += getGlobalVersion(file)
+            val reader = toReader(file)
+            try handleDepManifest(JSDependencyManifest.read(reader))
+            finally reader.close()
+
+          case _ if isJSFile(file) =>
+            versions += getGlobalVersion(file)
+            handleJS(toJSFile(file))
+
+          case _ if isIRFile(file) =>
+            versions += getGlobalVersion(file)
+            handleIR(path, toIRFile(file))
+
+          case _ => // ignore other files
+        }
+      }
+    }
+  }
+
+}