concat templates and use build timestamp as cache invalidator

src/main/script/HTMLConcat.groovy

@@ -0,0 +1,28 @@
+import java.io.File;
+import java.io.IOException;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.lang.SystemUtils;
+
+public class HTMLConcat {
+	public void concat(String source, String prefix, String destination)
+			throws IOException {
+		StringBuilder sb = new StringBuilder();
+		sb.append("<div>");
+		for (File file : new File(source).listFiles()) {
+			if (file.isFile()) {
+				sb.append(SystemUtils.LINE_SEPARATOR);
+				sb.append(String.format(
+						"<script type=\"text/ng-template\" id=\"%s%s\">",
+						prefix, file.getName()));
+				sb.append(SystemUtils.LINE_SEPARATOR);
+				sb.append(FileUtils.readFileToString(file));
+				sb.append(SystemUtils.LINE_SEPARATOR);
+				sb.append("</script>");
+				sb.append(SystemUtils.LINE_SEPARATOR);
+			}
+		}
+		sb.append("</div>");
+		FileUtils.writeStringToFile(new File(destination), sb.toString());
+	}
+}