diff --git a/app/src/processing/app/Base.java b/app/src/processing/app/Base.java
index 87b342e53..f00169862 100644
--- a/app/src/processing/app/Base.java
+++ b/app/src/processing/app/Base.java
@@ -1523,35 +1523,39 @@ public class Base {
    * should replace the sketch in the current window, or false when the
    * sketch should open in a new window.
    */
-  protected boolean addSketches(JMenu menu, File folder,
-                                final boolean replaceExisting) throws IOException {
+  protected boolean addSketches(JMenu menu, File folder, final boolean replaceExisting) throws IOException {
     if (folder == null)
       return false;
 
-    // skip .DS_Store files, etc (this shouldn't actually be necessary)
     if (!folder.isDirectory()) return false;
 
-    String[] list = folder.list();
+    File[] files = folder.listFiles();
     // If a bad folder or unreadable or whatever, this will come back null
-    if (list == null) return false;
+    if (files == null) return false;
 
-    // Alphabetize list, since it's not always alpha order
-    Arrays.sort(list, String.CASE_INSENSITIVE_ORDER);
+    // Alphabetize files, since it's not always alpha order
+    Arrays.sort(files, new Comparator<File>() {
+      @Override
+      public int compare(File file, File file2) {
+        return file.getName().compareToIgnoreCase(file2.getName());
+      }
+    });
 
     boolean ifound = false;
 
-    for (String name : list) {
-      if ((name.charAt(0) == '.') ||
-          name.equals("CVS")) continue;
+    for (File subfolder : files) {
+      if (FileUtils.isSCCSOrHiddenFile(subfolder)) {
+        continue;
+      }
 
-      File subfolder = new File(folder, name);
       if (!subfolder.isDirectory()) continue;
 
-      if (addSketchesSubmenu(menu, name, subfolder, replaceExisting))
+      if (addSketchesSubmenu(menu, subfolder.getName(), subfolder, replaceExisting)) {
         ifound = true;
+      }
     }
 
-    return ifound;  // actually ignored, but..
+    return ifound;
   }
 
   private boolean addSketchesSubmenu(JMenu menu, Library lib,
diff --git a/app/src/processing/app/debug/Compiler.java b/app/src/processing/app/debug/Compiler.java
index d9bf5f1f1..7cbba74c5 100644
--- a/app/src/processing/app/debug/Compiler.java
+++ b/app/src/processing/app/debug/Compiler.java
@@ -38,6 +38,7 @@ import processing.app.I18n;
 import processing.app.Preferences;
 import processing.app.Sketch;
 import processing.app.SketchCode;
+import processing.app.helpers.FileUtils;
 import processing.app.helpers.PreferencesMap;
 import processing.app.helpers.ProcessUtils;
 import processing.app.helpers.StringReplacer;
@@ -575,16 +576,19 @@ public class Compiler implements MessageConsumer {
                                              boolean recurse) {
     List<File> files = new ArrayList<File>();
 
-    if (Library.SOURCE_CONTROL_FOLDERS.contains(folder.getName())) {
+    if (FileUtils.isSCCSOrHiddenFile(folder)) {
       return files;
     }
 
-    if (folder.listFiles() == null)
+    File[] listFiles = folder.listFiles();
+    if (listFiles == null) {
       return files;
+    }
 
-    for (File file : folder.listFiles()) {
-      if (file.getName().startsWith("."))
+    for (File file : listFiles) {
+      if (FileUtils.isSCCSOrHiddenFile(file)) {
         continue; // skip hidden files
+      }
 
       if (file.getName().endsWith("." + extension))
         files.add(file);
diff --git a/app/src/processing/app/helpers/FileUtils.java b/app/src/processing/app/helpers/FileUtils.java
index e79da330d..f35a14918 100644
--- a/app/src/processing/app/helpers/FileUtils.java
+++ b/app/src/processing/app/helpers/FileUtils.java
@@ -4,11 +4,14 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
 import java.util.Random;
 import java.util.regex.Pattern;
 
 public class FileUtils {
 
+  private static final List<String> SOURCE_CONTROL_FOLDERS = Arrays.asList("CVS", "RCS", ".git", ".svn", ".hg", ".bzr");
   private static final Pattern BACKSLASH = Pattern.compile("\\\\");
 
   /**
@@ -163,4 +166,8 @@ public class FileUtils {
   public static String getLinuxPathFrom(File file) {
     return BACKSLASH.matcher(file.getAbsolutePath()).replaceAll("/");
   }
+
+  public static boolean isSCCSOrHiddenFile(File file) {
+    return file.isHidden() || file.getName().charAt(0) == '.' || (file.isDirectory() && SOURCE_CONTROL_FOLDERS.contains(file.getName()));
+  }
 }
diff --git a/app/src/processing/app/packages/Library.java b/app/src/processing/app/packages/Library.java
index 4aed14acb..839377448 100644
--- a/app/src/processing/app/packages/Library.java
+++ b/app/src/processing/app/packages/Library.java
@@ -1,5 +1,6 @@
 package processing.app.packages;
 
+import processing.app.helpers.FileUtils;
 import processing.app.helpers.PreferencesMap;
 
 import java.io.File;
@@ -35,7 +36,6 @@ public class Library {
   private static final List<String> OPTIONAL_FILES = Arrays
       .asList(new String[] { "keywords.txt", "library.properties" });
 
-  public static final List<String> SOURCE_CONTROL_FOLDERS = Arrays.asList(new String[]{"CSV", "RCS", ".git", ".svn", ".hq", ".bzr"});
 
   /**
    * Scans inside a folder and create a Library object out of it. Automatically
@@ -77,7 +77,7 @@ public class Library {
     // 3. check if root folder contains prohibited stuff
     for (File file : libFolder.listFiles()) {
       if (file.isDirectory()) {
-        if (SOURCE_CONTROL_FOLDERS.contains(file.getName())) {
+        if (FileUtils.isSCCSOrHiddenFile(file)) {
           System.out.println("WARNING: Ignoring spurious " + file.getName() + " folder in '" + properties.get("name") + "' library");
           continue;
         }
@@ -130,7 +130,7 @@ public class Library {
     res.folder = libFolder;
     res.srcFolder = libFolder;
     res.name = libFolder.getName();
-    res.architectures = Arrays.asList(new String[]{"*"});
+    res.architectures = Arrays.asList("*");
     res.pre15Lib = true;
     return res;
   }