Add CLI version constraint for packaging

extensions/ql-vscode/src/cli.ts

@@ -1199,6 +1199,11 @@ export class CliVersionConstraint {
    */
   public static CLI_VERSION_WITH_OLD_EVAL_STATS = new SemVer('2.7.4');
 
+  /**
+   * CLI version where packaging was introduced.
+   */
+  public static CLI_VERSION_WITH_PACKAGING = new SemVer('2.6.0');
+
   constructor(private readonly cli: CodeQLCliServer) {
     /**/
   }
@@ -1250,4 +1255,8 @@ export class CliVersionConstraint {
   async supportsOldEvalStats() {
     return this.isVersionAtLeast(CliVersionConstraint.CLI_VERSION_WITH_OLD_EVAL_STATS);
   }
+
+  async supportsPackaging() {
+    return this.isVersionAtLeast(CliVersionConstraint.CLI_VERSION_WITH_PACKAGING);
+  }
 }

extensions/ql-vscode/src/packaging.ts

@@ -1,4 +1,4 @@
-import { CodeQLCliServer } from './cli';
+import { CliVersionConstraint, CodeQLCliServer } from './cli';
 import {
   getOnDiskWorkspaceFolders,
   showAndLogErrorMessage,
@@ -30,6 +30,10 @@ export async function handleDownloadPacks(
   cliServer: CodeQLCliServer,
   progress: ProgressCallback,
 ): Promise<void> {
+  if (!(await cliServer.cliConstraints.supportsPackaging())) {
+    throw new Error(`Packaging commands are not supported by this version of CodeQL. Please upgrade to v${CliVersionConstraint.CLI_VERSION_WITH_PACKAGING
+      } or later.`);
+  }
   progress({
     message: 'Choose packs to download',
     step: 1,
@@ -87,6 +91,10 @@ export async function handleInstallPacks(
   cliServer: CodeQLCliServer,
   progress: ProgressCallback,
 ): Promise<void> {
+  if (!(await cliServer.cliConstraints.supportsPackaging())) {
+    throw new Error(`Packaging commands are not supported by this version of CodeQL. Please upgrade to v${CliVersionConstraint.CLI_VERSION_WITH_PACKAGING
+      } or later.`);
+  }
   progress({
     message: 'Choose packs to install',
     step: 1,

extensions/ql-vscode/src/vscode-tests/cli-integration/packaging.test.ts

@@ -5,7 +5,7 @@ import * as path from 'path';
 
 import * as pq from 'proxyquire';
 
-import { CodeQLCliServer } from '../../cli';
+import { CliVersionConstraint, CodeQLCliServer } from '../../cli';
 import { CodeQLExtensionInterface } from '../../extension';
 import { expect } from 'chai';
 
@@ -40,7 +40,11 @@ describe('Packaging commands', function() {
         'Extension not initialized. Make sure cli is downloaded and installed properly.'
       );
     }
-
+    if (!(await cli.cliConstraints.supportsPackaging())) {
+      console.log(`Packaging commands are not supported on CodeQL CLI v${CliVersionConstraint.CLI_VERSION_WITH_PACKAGING
+        }. Skipping this test.`);
+      this.skip();
+    }
     progress = sandbox.spy();
     quickPickSpy = sandbox.stub(window, 'showQuickPick');
     inputBoxSpy = sandbox.stub(window, 'showInputBox');