GP-0: The Visual Studio Code Integration options can now accept 2

optional arguments, allowing a Flatpak installation of VSCode to be
launched by Ghidra (Closes #8442)

Ghidra/Features/Base/src/main/help/help/topics/VSCodeIntegration/VSCodeIntegration.htm

@@ -37,10 +37,26 @@
           <TD valign="top" align="left">Path to a Visual Studio Code executable file. It defaults
           to the most commonly used location on your specific platform.</TD>
         </TR>
+        <TR valign="middle">
+          <TD valign="top" width="200" align="left">Visual Studio Code Argument 1 (optional)</TD>
+          <TD valign="top" align="left">An optional argument to pass to the Visual Studio Code 
+          executable.</TD>
+        </TR>
+        <TR valign="middle">
+          <TD valign="top" width="200" align="left">Visual Studio Code Argument 2 (optional)</TD>
+          <TD valign="top" align="left">An optional argument to pass to the Visual Studio Code 
+          executable.</TD>
+        </TR>
       </TBODY>
     </TABLE>
    </CENTER>
    
+   <P>
+   <IMG src="help/shared/note.yellow.png" alt="">One use of the optional argument fields is to
+   launch a Flatpak installation of Visual Studio Code. In this case, the executable path might be
+   "/usr/bin/flatpak", and the two optional arguments might be "run" and "com.visualstudio.code".
+   </P>
+   
     <H2><A name="VSCodeModuleProject"></A>Create Visual Studio Code Module Project</H2>
     <P>This action creates a new Visual Studio Code project folder which can be used as a convenient
     starting point to develop a new Ghidra module. The new project will be linked against the 

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/vscode/VSCodeIntegrationOptionsPlugin.java

@@ -44,9 +44,21 @@ public class VSCodeIntegrationOptionsPlugin extends Plugin implements Applicatio
 	public static final String PLUGIN_OPTIONS_NAME = "Visual Studio Code Integration";
 
 	public static final String VSCODE_EXE_PATH_OPTION = "Visual Studio Code Executable Path";
-	private static final String VSCODE_EXE_PATH_DESC = "Path to Visual Studio Code executable";
+	private static final String VSCODE_EXE_PATH_DESC = "Full path to Visual Studio Code executable";
 	private static final File VSCODE_EXE_PATH_DEFAULT = getDefaultVSCodeExecutable();
 
+	public static final String VSCODE_ARG1_OPTION =
+		"Visual Studio Code Launch Argument 1 (optional)";
+	private static final String VSCODE_ARG1_DESC =
+		"Optional argument 1 for Visual Studio Code executable";
+	private static final String VSCODE_ARG1_DEFAULT = null;
+
+	public static final String VSCODE_ARG2_OPTION =
+		"Visual Studio Code Launch Argument 2 (optional)";
+	private static final String VSCODE_ARG2_DESC =
+		"Optional argument 2 for Visual Studio Code executable";
+	private static final String VSCODE_ARG2_DEFAULT = null;
+
 	public VSCodeIntegrationOptionsPlugin(PluginTool tool) {
 		super(tool);
 	}
@@ -57,6 +69,10 @@ public class VSCodeIntegrationOptionsPlugin extends Plugin implements Applicatio
 		ToolOptions options = tool.getOptions(PLUGIN_OPTIONS_NAME);
 		options.registerOption(VSCODE_EXE_PATH_OPTION, OptionType.FILE_TYPE,
 			VSCODE_EXE_PATH_DEFAULT, null, VSCODE_EXE_PATH_DESC);
+		options.registerOption(VSCODE_ARG1_OPTION, OptionType.STRING_TYPE,
+			VSCODE_ARG1_DEFAULT, null, VSCODE_ARG1_DESC);
+		options.registerOption(VSCODE_ARG2_OPTION, OptionType.STRING_TYPE,
+			VSCODE_ARG2_DEFAULT, null, VSCODE_ARG2_DESC);
 		options.setOptionsHelpLocation(
 			new HelpLocation("VSCodeIntegration", "VSCodeIntegrationOptions"));
 	}

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/vscode/VSCodeIntegrationPlugin.java

@@ -19,6 +19,7 @@ import java.io.*;
 import java.nio.charset.StandardCharsets;
 import java.util.*;
 
+import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.io.*;
 
 import com.google.gson.*;
@@ -153,6 +154,16 @@ public class VSCodeIntegrationPlugin extends ProgramPlugin implements VSCodeInte
 		return vscodeExecutableFile;
 	}
 
+	@Override
+	public List<String> getVSCodeArguments() {
+		List<String> args = new ArrayList<>();
+		CollectionUtils.addIgnoreNull(args,
+			options.getString(VSCodeIntegrationOptionsPlugin.VSCODE_ARG1_OPTION, null));
+		CollectionUtils.addIgnoreNull(args,
+			options.getString(VSCodeIntegrationOptionsPlugin.VSCODE_ARG2_OPTION, null));
+		return args;
+	}
+
 	@Override
 	public void launchVSCode(File file) {
 		TaskLauncher.launch(new VSCodeLauncherTask(this, file));

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/vscode/VSCodeLauncherTask.java

@@ -59,6 +59,7 @@ class VSCodeLauncherTask extends Task {
 		// location present the user with the options window, and when they close that window, try 
 		// again.
 		File vscodeExecutableFile;
+		List<String> vscodeArgs = vscodeService.getVSCodeArguments();
 		try {
 			vscodeExecutableFile = vscodeService.getVSCodeExecutableFile();
 		}
@@ -93,6 +94,7 @@ class VSCodeLauncherTask extends Task {
 		try {
 			List<String> args = new ArrayList<>();
 			args.add(vscodeExecutableFile.getAbsolutePath());
+			args.addAll(vscodeArgs);
 			args.add("-a");
 			args.add(workspaceFile.getAbsolutePath());
 			args.add(file.getAbsolutePath());

Ghidra/Features/Base/src/main/java/ghidra/app/services/VSCodeIntegrationService.java

@@ -16,6 +16,7 @@
 package ghidra.app.services;
 
 import java.io.*;
+import java.util.List;
 
 import ghidra.framework.options.ToolOptions;
 
@@ -36,6 +37,11 @@ public interface VSCodeIntegrationService {
 	 */
 	public File getVSCodeExecutableFile() throws FileNotFoundException;
 
+	/**
+	 * {@return the Visual Studio Code executable arguments}
+	 */
+	public List<String> getVSCodeArguments();
+
 	/**
 	 * Launches Visual Studio Code
 	 *