Run pack bundle in separate process and allow cancelling it

extensions/ql-vscode/src/codeql-cli/cli.ts

@@ -36,6 +36,7 @@ import type { Position } from "../query-server/messages";
 import { LOGGING_FLAGS } from "./cli-command";
 import type { CliFeatures, VersionAndFeatures } from "./cli-version";
 import { ExitCodeError, getCliError } from "./cli-errors";
+import { UserCancellationException } from "../common/vscode/progress";
 
 /**
  * The version of the SARIF format that we are using.
@@ -230,6 +231,15 @@ type RunOptions = {
    * If true, don't print logs to the CodeQL extension log.
    */
   silent?: boolean;
+  /**
+   * If true, run this command in a new process rather than in the CLI server.
+   */
+  runInNewProcess?: boolean;
+  /**
+   * If runInNewProcess is true, allows cancelling the command. If runInNewProcess
+   * is false or not specified, this option is ignored.
+   */
+  token?: CancellationToken;
 };
 
 type JsonRunOptions = RunOptions & {
@@ -438,6 +448,67 @@ export class CodeQLCliServer implements Disposable {
     }
   }
 
+  private async runCodeQlCliInNewProcess(
+    command: string[],
+    commandArgs: string[],
+    description: string,
+    onLine?: OnLineCallback,
+    silent?: boolean,
+    token?: CancellationToken,
+  ): Promise<string> {
+    const codeqlPath = await this.getCodeQlPath();
+
+    const args = command.concat(LOGGING_FLAGS).concat(commandArgs);
+    const argsString = args.join(" ");
+
+    // If we are running silently, we don't want to print anything to the console.
+    if (!silent) {
+      void this.logger.log(`${description} using CodeQL CLI: ${argsString}...`);
+    }
+
+    const process = spawnChildProcess(codeqlPath, args);
+    if (!process || !process.pid) {
+      throw new Error(
+        `Failed to start ${description} using command ${codeqlPath} ${argsString}.`,
+      );
+    }
+
+    let cancellationRegistration: Disposable | undefined = undefined;
+    try {
+      cancellationRegistration = token?.onCancellationRequested((_e) => {
+        tk(process.pid || 0);
+      });
+
+      return await this.handleProcessOutput(process, {
+        handleNullTerminator: true,
+        onListenStart: (process) => {
+          // Write the command followed by a null terminator.
+          process.stdin.write(JSON.stringify(args), "utf8");
+          process.stdin.write(this.nullBuffer);
+        },
+        description,
+        args,
+        silent,
+        onLine,
+      });
+    } catch (e) {
+      // If cancellation was requested, the error is probably just because the process was exited with SIGTERM.
+      if (token?.isCancellationRequested) {
+        void this.logger.log(
+          `The process was cancelled and exited with: ${getErrorMessage(e)}`,
+        );
+        throw new UserCancellationException(
+          `Command ${argsString} was cancelled.`,
+          true, // Don't show a warning message when the user manually cancelled the command.
+        );
+      }
+
+      throw e;
+    } finally {
+      cancellationRegistration?.dispose();
+    }
+  }
+
   private async handleProcessOutput(
     process: ChildProcessWithoutNullStreams,
     {
@@ -714,18 +785,38 @@ export class CodeQLCliServer implements Disposable {
    * @param progressReporter Used to output progress messages, e.g. to the status bar.
    * @param onLine Used for responding to interactive output on stdout/stdin.
    * @param silent If true, don't print logs to the CodeQL extension log.
+   * @param runInNewProcess If true, run this command in a new process rather than in the CLI server.
+   * @param token If runInNewProcess is true, allows cancelling the command. If runInNewProcess
+   *              is false or not specified, this option is ignored.
    * @returns The contents of the command's stdout, if the command succeeded.
    */
   runCodeQlCliCommand(
     command: string[],
     commandArgs: string[],
     description: string,
-    { progressReporter, onLine, silent = false }: RunOptions = {},
+    {
+      progressReporter,
+      onLine,
+      silent = false,
+      runInNewProcess = false,
+      token,
+    }: RunOptions = {},
   ): Promise<string> {
     if (progressReporter) {
       progressReporter.report({ message: description });
     }
 
+    if (runInNewProcess) {
+      return this.runCodeQlCliInNewProcess(
+        command,
+        commandArgs,
+        description,
+        onLine,
+        silent,
+        token,
+      );
+    }
+
     return new Promise((resolve, reject) => {
       // Construct the command that actually does the work
       const callback = (): void => {
@@ -1537,6 +1628,7 @@ export class CodeQLCliServer implements Disposable {
    * @param outputBundleFile The path to the output bundle file.
    * @param outputPackDir The directory to contain the unbundled output pack.
    * @param moreOptions Additional options to be passed to `codeql pack bundle`.
+   * @param token Cancellation token for the operation.
    */
   async packBundle(
     sourcePackDir: string,
@@ -1544,6 +1636,7 @@ export class CodeQLCliServer implements Disposable {
     outputBundleFile: string,
     outputPackDir: string,
     moreOptions: string[],
+    token?: CancellationToken,
   ): Promise<void> {
     const args = [
       "-o",
@@ -1559,6 +1652,10 @@ export class CodeQLCliServer implements Disposable {
       ["pack", "bundle"],
       args,
       "Bundling pack",
+      {
+        runInNewProcess: true,
+        token,
+      },
     );
   }
 

extensions/ql-vscode/src/model-editor/model-evaluator.ts

@@ -75,7 +75,7 @@ export class ModelEvaluator extends DisposableObject {
         ),
       {
         title: "Run model evaluation",
-        cancellable: false,
+        cancellable: true,
       },
     );
   }

extensions/ql-vscode/src/variant-analysis/run-remote-query.ts

@@ -54,6 +54,7 @@ async function generateQueryPack(
   cliServer: CodeQLCliServer,
   qlPackDetails: QlPackDetails,
   tmpDir: RemoteQueryTempDir,
+  token: CancellationToken,
 ): Promise<string> {
   const workspaceFolders = getOnDiskWorkspaceFolders();
   const extensionPacks = await getExtensionPacksToInject(
@@ -148,6 +149,7 @@ async function generateQueryPack(
     bundlePath,
     tmpDir.compiledPackDir,
     precompilationOpts,
+    token,
   );
   const base64Pack = (await readFile(bundlePath)).toString("base64");
   return base64Pack;
@@ -331,7 +333,12 @@ export async function prepareRemoteQueryRun(
   let base64Pack: string;
 
   try {
-    base64Pack = await generateQueryPack(cliServer, qlPackDetails, tempDir);
+    base64Pack = await generateQueryPack(
+      cliServer,
+      qlPackDetails,
+      tempDir,
+      token,
+    );
   } finally {
     await tempDir.remoteQueryDir.cleanup();
   }

extensions/ql-vscode/src/variant-analysis/variant-analysis-manager.ts

@@ -221,42 +221,48 @@ export class VariantAnalysisManager
   }
 
   public async runVariantAnalysisFromPublishedPack(): Promise<void> {
-    return withProgress(async (progress, token) => {
-      progress({
-        maxStep: 7,
-        step: 0,
-        message: "Determining query language",
-      });
+    return withProgress(
+      async (progress, token) => {
+        progress({
+          maxStep: 7,
+          step: 0,
+          message: "Determining query language",
+        });
 
-      const language = await askForLanguage(this.cliServer);
-      if (!language) {
-        return;
-      }
+        const language = await askForLanguage(this.cliServer);
+        if (!language) {
+          return;
+        }
 
-      progress({
-        maxStep: 7,
-        step: 2,
-        message: "Downloading query pack and resolving queries",
-      });
+        progress({
+          maxStep: 7,
+          step: 2,
+          message: "Downloading query pack and resolving queries",
+        });
 
-      // Build up details to pass to the functions that run the variant analysis.
-      const qlPackDetails = await resolveCodeScanningQueryPack(
-        this.app.logger,
-        this.cliServer,
-        language,
-      );
+        // Build up details to pass to the functions that run the variant analysis.
+        const qlPackDetails = await resolveCodeScanningQueryPack(
+          this.app.logger,
+          this.cliServer,
+          language,
+        );
 
-      await this.runVariantAnalysis(
-        qlPackDetails,
-        (p) =>
-          progress({
-            ...p,
-            maxStep: p.maxStep + 3,
-            step: p.step + 3,
-          }),
-        token,
-      );
-    });
+        await this.runVariantAnalysis(
+          qlPackDetails,
+          (p) =>
+            progress({
+              ...p,
+              maxStep: p.maxStep + 3,
+              step: p.step + 3,
+            }),
+          token,
+        );
+      },
+      {
+        title: "Run Variant Analysis",
+        cancellable: true,
+      },
+    );
   }
 
   private async runVariantAnalysisCommand(queryFiles: Uri[]): Promise<void> {