From 2b0ea71890c168498a671dc09327f0a66358c8f0 Mon Sep 17 00:00:00 2001
From: Chris Henson <chenson42@gmail.com>
Date: Tue, 13 Oct 2015 12:58:01 -0400
Subject: [PATCH] exclude target directory

---
 symmetric-assemble/common.gradle | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/symmetric-assemble/common.gradle b/symmetric-assemble/common.gradle
index 8b69446580..c4bd4b964b 100644
--- a/symmetric-assemble/common.gradle
+++ b/symmetric-assemble/common.gradle
@@ -36,12 +36,38 @@ allprojects {
         }
     }
     
+    eclipse.project.file.withXml { provider ->
+      ignoreDerivedResources(provider.asNode())
+    }
+    
     ext {
         majorMinorVersion = version.substring(0, version.indexOf(".", version.indexOf(".")+ 1))
     }
     
 }
 
+def ignoreDerivedResources(projectDescription, directories = ["build", "target", "test-output"]) {
+  def count = directories.count { file(it).exists() }
+  if (count > 0) {
+    def filter = projectDescription
+      .appendNode("filteredResources")
+      .appendNode("filter")
+    filter.appendNode("id", System.currentTimeMillis().toString().trim())
+    filter.appendNode("type", "26")
+    filter.appendNode("name")
+    def matcher = filter.appendNode("matcher")
+    matcher.appendNode("id", "org.eclipse.ui.ide.orFilterMatcher")
+    def arguments = matcher.appendNode("arguments")
+    directories.each {
+      if (file(it).exists()) {
+        def dirMatcher = arguments.appendNode("matcher")
+        dirMatcher.appendNode("id", "org.eclipse.ui.ide.multiFilter")
+        dirMatcher.appendNode("arguments", "1.0-projectRelativePath-matches-false-false-${it}")
+      }
+    }
+  }
+}  
+
 subprojects { subproject ->
 
     apply plugin:'license-report'