Hide 'Add Python Project' context menu for existing projects

Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>

Author: Copilot

package.json

@@ -457,12 +457,12 @@
                 {
                     "command": "python-envs.addPythonProject",
                     "group": "inline",
-                    "when": "explorerViewletVisible && explorerResourceIsFolder"
+                    "when": "explorerViewletVisible && explorerResourceIsFolder && !python-envs:isExistingProject"
                 },
                 {
                     "command": "python-envs.addPythonProject",
                     "group": "inline",
-                    "when": "explorerViewletVisible && resourceExtname == .py"
+                    "when": "explorerViewletVisible && resourceExtname == .py && !python-envs:isExistingProject"
                 }
             ],
             "editor/title/run": [

package.nls.json

@@ -13,7 +13,7 @@
     "python-envs.terminal.revertStartupScriptChanges.title": "Revert Shell Startup Script Changes",
     "python-envs.setEnvManager.title": "Set Environment Manager",
     "python-envs.setPkgManager.title": "Set Package Manager",
-    "python-envs.addPythonProject.title": "Add Python Project",
+    "python-envs.addPythonProject.title": "Add as Python Project",
     "python-envs.removePythonProject.title": "Remove Python Project",
     "python-envs.copyEnvPath.title": "Copy Environment Path",
     "python-envs.copyProjectPath.title": "Copy Project Path",

src/extension.ts

@@ -1,4 +1,4 @@
-import { commands, ExtensionContext, LogOutputChannel, Terminal, Uri } from 'vscode';
+import { commands, ExtensionContext, LogOutputChannel, Terminal, Uri, workspace, window } from 'vscode';
 import { PythonEnvironment, PythonEnvironmentApi } from './api';
 import { ensureCorrectVersion } from './common/extVersion';
 import { registerTools } from './common/lm.apis';
@@ -13,7 +13,6 @@ import {
     activeTerminal,
     createLogOutputChannel,
     onDidChangeActiveTerminal,
-    onDidChangeActiveTextEditor,
     onDidChangeTerminalShellIntegration,
 } from './common/window.apis';
 import { createManagerReady } from './features/common/managerReady';
@@ -88,6 +87,34 @@ export async function activate(context: ExtensionContext): Promise<PythonEnviron
     const projectManager: PythonProjectManager = new PythonProjectManagerImpl();
     context.subscriptions.push(projectManager);
 
+    // Helper function to check if a resource is an existing Python project
+    const isExistingProject = (uri: Uri | undefined): boolean => {
+        if (!uri) {
+            return false;
+        }
+        return projectManager.get(uri) !== undefined;
+    };
+
+    // Update the context key when explorer selection changes
+    context.subscriptions.push(
+        window.onDidChangeActiveTextEditor((editor) => {
+            if (editor) {
+                commands.executeCommand('setContext', 'python-envs:isExistingProject', isExistingProject(editor.document.uri));
+            }
+        }),
+        window.onDidChangeWindowState(() => {
+            const activeEditor = window.activeTextEditor;
+            if (activeEditor) {
+                commands.executeCommand('setContext', 'python-envs:isExistingProject', isExistingProject(activeEditor.document.uri));
+            }
+        }),
+        workspace.onDidOpenTextDocument((document) => {
+            if (window.activeTextEditor && window.activeTextEditor.document === document) {
+                commands.executeCommand('setContext', 'python-envs:isExistingProject', isExistingProject(document.uri));
+            }
+        })
+    );
+
     const envVarManager: EnvVarManager = new PythonEnvVariableManager(projectManager);
     context.subscriptions.push(envVarManager);
 
@@ -194,6 +221,10 @@ export async function activate(context: ExtensionContext): Promise<PythonEnviron
             await setPackageManagerCommand(envManagers, projectManager);
         }),
         commands.registerCommand('python-envs.addPythonProject', async (resource) => {
+            // Set context to show/hide menu item depending on whether the resource is already a Python project
+            if (resource instanceof Uri) {
+                commands.executeCommand('setContext', 'python-envs:isExistingProject', isExistingProject(resource));
+            }
             await addPythonProjectCommand(resource, projectManager, envManagers, projectCreators);
         }),
         commands.registerCommand('python-envs.removePythonProject', async (item) => {
@@ -254,7 +285,7 @@ export async function activate(context: ExtensionContext): Promise<PythonEnviron
                 }
             }
         }),
-        onDidChangeActiveTextEditor(async () => {
+        window.onDidChangeActiveTextEditor(async () => {
             updateViewsAndStatus(statusBar, workspaceView, managerView, api);
         }),
         envManagers.onDidChangeEnvironment(async () => {