Revert Layout changes

This reverts commits:
- 974ec92ad6.
- 537e0c12c2.
- 500a3df6e9.

spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/RepackageMojo.java

@@ -42,7 +42,8 @@ import org.apache.maven.shared.artifact.filter.collection.ScopeFilter;
 
 import org.springframework.boot.loader.tools.DefaultLaunchScript;
 import org.springframework.boot.loader.tools.LaunchScript;
-import org.springframework.boot.loader.tools.LayoutType;
+import org.springframework.boot.loader.tools.Layout;
+import org.springframework.boot.loader.tools.Layouts;
 import org.springframework.boot.loader.tools.Libraries;
 import org.springframework.boot.loader.tools.Repackager;
 
@@ -130,7 +131,7 @@ public class RepackageMojo extends AbstractDependencyFilterMojo {
 	 * @since 1.0
 	 */
 	@Parameter
-	private String layout;
+	private LayoutType layout;
 
 	/**
 	 * A list of the libraries that must be unpacked from fat jars in order to run.
@@ -227,7 +228,7 @@ public class RepackageMojo extends AbstractDependencyFilterMojo {
 		repackager.setMainClass(this.mainClass);
 		if (this.layout != null) {
 			getLog().info("Layout: " + this.layout);
-			repackager.setLayout(LayoutType.layout(this.layout));
+			repackager.setLayout(this.layout.layout());
 		}
 		return repackager;
 	}
@@ -308,6 +309,53 @@ public class RepackageMojo extends AbstractDependencyFilterMojo {
 		}
 	}
 
+	/**
+	 * Archive layout types.
+	 */
+	public enum LayoutType {
+
+		/**
+		 * Jar Layout.
+		 */
+		JAR(new Layouts.Jar()),
+
+		/**
+		 * War Layout.
+		 */
+		WAR(new Layouts.War()),
+
+		/**
+		 * Zip Layout.
+		 */
+		ZIP(new Layouts.Expanded()),
+
+		/**
+		 * Dir Layout.
+		 */
+		DIR(new Layouts.Expanded()),
+
+		/**
+		 * Module Layout.
+		 */
+		MODULE(new Layouts.Module()),
+
+		/**
+		 * No Layout.
+		 */
+		NONE(new Layouts.None());
+
+		private final Layout layout;
+
+		public Layout layout() {
+			return this.layout;
+		}
+
+		LayoutType(Layout layout) {
+			this.layout = layout;
+		}
+
+	}
+
 	private static class LoggingRepackager extends Repackager {
 
 		private final Log log;