Refactor generate method and add dry-run support

Modified the generate method to return a String instead of printing directly, enabling better output handling. Introduced a dry-run option in the main method to preview generated output without writing to a file.

Author: ddemiral

src/main/java/com/chaoticsomeone/ModInfGen/ModuleInfoGenerator.java

@@ -28,7 +28,7 @@ public ModuleInfoGenerator() {
 		this(false);
 	}
 
-	public void generate() {
+	public String generate() {
 		moduleInfo = gson.fromJson(readJsonString(configFilePath), ModuleInfo.class);
 
 		try {
@@ -37,10 +37,12 @@ public void generate() {
 			moduleInfo.expandRoot();
 			moduleInfo.scanForModules();
 
-			System.out.println(generateModuleInfoContent(moduleInfo));
+			return generateModuleInfoContent(moduleInfo);
 		} catch (IllegalArgumentException e) {
 			e.printStackTrace();
 		}
+
+		return null;
 	}
 
 	public void generateTemplate() {
@@ -197,21 +199,37 @@ private void setCollapseWhitespaces(boolean collapseWhitespaces) {
 		this.collapseWhitespaces = collapseWhitespaces;
 	}
 
+	private File getOutputFile() {
+		return new File(moduleInfo.getSourceRoot(), "module-info.java");
+	}
+
 	public static void main(String[] args) {
 		ModuleInfoGenerator generator = new ModuleInfoGenerator(false);
+
 		boolean doGenerate = true;
+		boolean isDryRun = false;
 
 		for (String arg : args) {
 			if (arg.equalsIgnoreCase("-w")) {
 				generator.setCollapseWhitespaces(true);
 			} else if (arg.equalsIgnoreCase("-n")) {
 				generator.generateTemplate();
 				doGenerate = false;
+			} else if (arg.equalsIgnoreCase("--dry-run")) {
+				isDryRun = true;
 			}
 		}
 
 		if (doGenerate) {
-			generator.generate();
+			String output = generator.generate();
+
+			if (!isDryRun) {
+				try (BufferedWriter bw = new BufferedWriter(new FileWriter(generator.getOutputFile()))) {
+					bw.write(output);
+				} catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
 		}
 	}
 }

src/main/java/module-info.java

@@ -1,5 +1,18 @@
+// This is a test header comment
+
 module com.chaoticsomeone.ModInfGen {
+	// Dependencies are below	
 	requires com.google.gson;
+	
+	// These modules are exported	
 	exports com.chaoticsomeone.ModInfGen;
+	exports com.chaoticsomeone.ModInfGen.model;
+	
+	// These modules are opened to reflection	
 	opens com.chaoticsomeone.ModInfGen.model to com.google.gson;
-}
+	
+	// These are the legacy lines	
+	opens com.chaoticsomeone.ModInfGen to com.google.gson;
+}
+
+// This is the closing comment