feat: Allow to export programs as ZIP

Author: xxDark

src/main/java/me/coley/recaf/command/impl/Export.java

@@ -3,6 +3,7 @@
 import me.coley.recaf.command.ControllerCommand;
 import me.coley.recaf.plugin.PluginsManager;
 import me.coley.recaf.plugin.api.ExportInterceptorPlugin;
+import me.coley.recaf.util.IOUtil;
 import me.coley.recaf.workspace.*;
 import org.apache.commons.io.FileUtils;
 import org.objectweb.asm.ClassReader;
@@ -17,6 +18,7 @@
 import java.util.jar.JarEntry;
 import java.util.jar.JarOutputStream;
 import java.util.stream.Collectors;
+import java.util.zip.ZipOutputStream;
 
 import static me.coley.recaf.util.CollectionUtil.copySet;
 import static me.coley.recaf.util.Log.*;
@@ -122,7 +124,10 @@ public static void writeDirectory(File output, Map<String, byte[]> content) thro
 	 * 		When the jar file cannot be written to.
 	 */
 	public static void writeArchive(File output, Map<String, byte[]> content) throws IOException {
-		try (JarOutputStream jos = new JarOutputStream(new FileOutputStream(output))) {
+		String extension = IOUtil.getExtension(output.toPath());
+		FileOutputStream fos = new FileOutputStream(output);
+		try (ZipOutputStream jos = ("zip".equals(extension)) ? new ZipOutputStream(fos) :
+				/* Let's assume it's a jar */ new JarOutputStream(fos)) {
 			Set<String> dirsVisited = new HashSet<>();
 			// Contents is iterated in sorted order (because 'archiveContent' is TreeMap).
 			// This allows us to insert directory entries before file entries of that directory occur.

src/main/java/me/coley/recaf/ui/MainMenu.java

@@ -139,23 +139,25 @@ public MainMenu(GuiController controller) {
 		}
 		getMenus().addAll(mPlugins, mHelp);
 		// Setup file-choosers
-		ExtensionFilter filter = new ExtensionFilter(translate("ui.fileprompt.open.extensions"),
+		ExtensionFilter commonFilter = new ExtensionFilter(translate("ui.fileprompt.open.extensions"),
 				"*.jar", "*.war", "*.class", "*.json");
+		ExtensionFilter saveFilter = new ExtensionFilter(translate("ui.fileprompt.open.extensions"),
+				"*.jar", "*.war", "*.class", "*.zip");
 		fcLoadApp.setTitle(translate("ui.fileprompt.open"));
-		fcLoadApp.getExtensionFilters().add(filter);
-		fcLoadApp.setSelectedExtensionFilter(filter);
+		fcLoadApp.getExtensionFilters().add(commonFilter);
+		fcLoadApp.setSelectedExtensionFilter(commonFilter);
 		fcSaveApp.setTitle(translate("ui.fileprompt.export"));
-		fcSaveApp.getExtensionFilters().add(filter);
-		fcSaveApp.setSelectedExtensionFilter(filter);
-		filter = new ExtensionFilter(translate("ui.fileprompt.open.extensions"),
+		fcSaveApp.getExtensionFilters().add(saveFilter);
+		fcSaveApp.setSelectedExtensionFilter(saveFilter);
+		commonFilter = new ExtensionFilter(translate("ui.fileprompt.open.extensions"),
 				"*.txt", "*.map", "*.mapping", "*.enigma", "*.pro", "*.srg", "*.tiny", "*.tinyv2");
 		fcLoadMap.setTitle(translate("ui.fileprompt.open"));
-		fcLoadMap.getExtensionFilters().add(filter);
-		fcLoadMap.setSelectedExtensionFilter(filter);
-		filter = new ExtensionFilter(translate("ui.fileprompt.open.extensions"), "*.json");
+		fcLoadMap.getExtensionFilters().add(commonFilter);
+		fcLoadMap.setSelectedExtensionFilter(commonFilter);
+		commonFilter = new ExtensionFilter(translate("ui.fileprompt.open.extensions"), "*.json");
 		fcSaveWorkspace.setTitle(translate("ui.fileprompt.export"));
-		fcSaveWorkspace.getExtensionFilters().add(filter);
-		fcSaveWorkspace.setSelectedExtensionFilter(filter);
+		fcSaveWorkspace.getExtensionFilters().add(commonFilter);
+		fcSaveWorkspace.setSelectedExtensionFilter(commonFilter);
 	}
 
 	/**