Backported OnlyDirs.class

app/src/processing/app/Base.java

@@ -33,6 +33,7 @@
 import processing.app.debug.Compiler;
 import processing.app.debug.Target;
 import processing.app.helpers.FileUtils;
+import processing.app.helpers.filefilters.OnlyDirs;
 import processing.app.tools.ZipDeflater;
 import processing.core.*;
 import static processing.app.I18n._;

app/src/processing/app/helpers/filefilters/OnlyDirs.java

@@ -0,0 +1,42 @@
+/*
+  OnlyDirs - FilenameFilter that accepts only directories (CVS, .svn, 
+  .DS_Store files are excluded as well)
+  Part of the Arduino project - http://www.arduino.cc/
+
+  Copyright (c) 2011 Cristian Maglie
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software Foundation,
+  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+package processing.app.helpers.filefilters;
+
+import java.io.File;
+import java.io.FilenameFilter;
+
+/**
+ * This filter accepts only directories (excluding .DS_Store files, .svn
+ * folders, etc)
+ * 
+ * @author Cristian Maglie
+ */
+public class OnlyDirs implements FilenameFilter {
+
+	public boolean accept(File dir, String name) {
+		if (name.charAt(0) == '.')
+			return false;
+		if (name.equals("CVS"))
+			return false;
+		return new File(dir, name).isDirectory();
+	}
+}