Ensure we match envs and python extensions (#74)

Author: karthiknadig

src/common/extVersion.ts

@@ -0,0 +1,20 @@
+import { PYTHON_EXTENSION_ID } from './constants';
+import { getExtension } from './extension.apis';
+import { traceError } from './logging';
+
+export function ensureCorrectVersion() {
+    const extension = getExtension(PYTHON_EXTENSION_ID);
+    if (!extension) {
+        return;
+    }
+
+    const version = extension.packageJSON.version;
+    const parts = version.split('.');
+    const major = parseInt(parts[0]);
+    const minor = parseInt(parts[1]);
+    if (major >= 2024 && minor >= 23) {
+        return;
+    }
+    traceError('Incompatible Python extension. Please update `ms-python.python` to version 2024.23 or later.');
+    throw new Error('Incompatible Python extension. Please update `ms-python.python` to version 2024.23 or later.');
+}

src/extension.ts

@@ -55,6 +55,7 @@ import { EnvVarManager, PythonEnvVariableManager } from './features/execution/en
 import { StopWatch } from './common/stopWatch';
 import { sendTelemetryEvent } from './common/telemetry/sender';
 import { EventNames } from './common/telemetry/constants';
+import { ensureCorrectVersion } from './common/extVersion';
 
 export async function activate(context: ExtensionContext): Promise<PythonEnvironmentApi> {
     const start = new StopWatch();
@@ -63,6 +64,8 @@ export async function activate(context: ExtensionContext): Promise<PythonEnviron
     const outputChannel: LogOutputChannel = createLogOutputChannel('Python Environments');
     context.subscriptions.push(outputChannel, registerLogger(outputChannel));
 
+    ensureCorrectVersion();
+
     // Setup the persistent state for the extension.
     setPersistentState(context);