Revert "Reliably detect whether shell integration is working" (#22445)

Reverts #22440

It seems reactivating never finishes after this, although this doesn't
repro when debugging the extension, have to investigate further.

Author: Kartik Raj

package.json

@@ -23,8 +23,7 @@
         "testObserver",
         "quickPickItemTooltip",
         "saveEditor",
-        "terminalDataWriteEvent",
-        "terminalExecuteCommandEvent"
+        "terminalDataWriteEvent"
     ],
     "author": {
         "name": "Microsoft Corporation"

src/client/common/application/applicationShell.ts

@@ -39,7 +39,7 @@ import {
     WorkspaceFolderPickOptions,
 } from 'vscode';
 import { traceError } from '../../logging';
-import { IApplicationShell, TerminalDataWriteEvent, TerminalExecutedCommand } from './types';
+import { IApplicationShell, TerminalDataWriteEvent } from './types';
 
 @injectable()
 export class ApplicationShell implements IApplicationShell {
@@ -182,12 +182,4 @@ export class ApplicationShell implements IApplicationShell {
             return new EventEmitter<TerminalDataWriteEvent>().event;
         }
     }
-    public get onDidExecuteTerminalCommand(): Event<TerminalExecutedCommand> | undefined {
-        try {
-            return window.onDidExecuteTerminalCommand;
-        } catch (ex) {
-            traceError('Failed to get proposed API TerminalExecutedCommand', ex);
-            return undefined;
-        }
-    }
 }

src/client/common/application/types.ts

@@ -78,42 +78,8 @@ export interface TerminalDataWriteEvent {
     readonly data: string;
 }
 
-export interface TerminalExecutedCommand {
-    /**
-     * The {@link Terminal} the command was executed in.
-     */
-    terminal: Terminal;
-    /**
-     * The full command line that was executed, including both the command and the arguments.
-     */
-    commandLine: string | undefined;
-    /**
-     * The current working directory that was reported by the shell. This will be a {@link Uri}
-     * if the string reported by the shell can reliably be mapped to the connected machine.
-     */
-    cwd: Uri | string | undefined;
-    /**
-     * The exit code reported by the shell.
-     */
-    exitCode: number | undefined;
-    /**
-     * The output of the command when it has finished executing. This is the plain text shown in
-     * the terminal buffer and does not include raw escape sequences. Depending on the shell
-     * setup, this may include the command line as part of the output.
-     */
-    output: string | undefined;
-}
-
 export const IApplicationShell = Symbol('IApplicationShell');
 export interface IApplicationShell {
-    /**
-     * An event that is emitted when a terminal with shell integration activated has completed
-     * executing a command.
-     *
-     * Note that this event will not fire if the executed command exits the shell, listen to
-     * {@link onDidCloseTerminal} to handle that case.
-     */
-    readonly onDidExecuteTerminalCommand: Event<TerminalExecutedCommand> | undefined;
     /**
      * An [event](#Event) which fires when the focus state of the current window
      * changes. The value of the event represents whether the window is focused.

src/client/terminals/envCollectionActivation/service.ts

@@ -37,7 +37,8 @@ import { TerminalShellType } from '../../common/terminal/types';
 import { OSType } from '../../common/utils/platform';
 import { normCase } from '../../common/platform/fs-paths';
 import { PythonEnvType } from '../../pythonEnvironments/base/info';
-import { IShellIntegrationService, ITerminalEnvVarCollectionService } from '../types';
+import { ITerminalEnvVarCollectionService } from '../types';
+import { ShellIntegrationShells } from './shellIntegration';
 import { ProgressService } from '../../common/application/progressService';
 
 @injectable()
@@ -79,7 +80,6 @@ export class TerminalEnvVarCollectionService implements IExtensionActivationServ
         @inject(IWorkspaceService) private workspaceService: IWorkspaceService,
         @inject(IConfigurationService) private readonly configurationService: IConfigurationService,
         @inject(IPathUtils) private readonly pathUtils: IPathUtils,
-        @inject(IShellIntegrationService) private readonly shellIntegrationService: IShellIntegrationService,
     ) {
         this.separator = platform.osType === OSType.Windows ? ';' : ':';
         this.progressService = new ProgressService(this.shell);
@@ -121,7 +121,7 @@ export class TerminalEnvVarCollectionService implements IExtensionActivationServ
                     this.disposables,
                 );
                 const { shell } = this.applicationEnvironment;
-                const isActive = this.shellIntegrationService.isWorking(shell);
+                const isActive = this.isShellIntegrationActive(shell);
                 const shellType = identifyShellFromShellPath(shell);
                 if (!isActive && shellType !== TerminalShellType.commandPrompt) {
                     traceWarn(`Shell integration is not active, environment activated maybe overriden by the shell.`);
@@ -184,7 +184,7 @@ export class TerminalEnvVarCollectionService implements IExtensionActivationServ
 
         // PS1 in some cases is a shell variable (not an env variable) so "env" might not contain it, calculate it in that case.
         env.PS1 = await this.getPS1(shell, resource, env);
-        const prependOptions = await this.getPrependOptions(shell);
+        const prependOptions = this.getPrependOptions(shell);
 
         // Clear any previously set env vars from collection
         envVarCollection.clear();
@@ -277,7 +277,7 @@ export class TerminalEnvVarCollectionService implements IExtensionActivationServ
                 // PS1 should be set but no PS1 was set.
                 return;
             }
-            const config = await this.shellIntegrationService.isWorking(shell);
+            const config = this.isShellIntegrationActive(shell);
             if (!config) {
                 traceVerbose('PS1 is not set when shell integration is disabled.');
                 return;
@@ -332,8 +332,8 @@ export class TerminalEnvVarCollectionService implements IExtensionActivationServ
         }
     }
 
-    private async getPrependOptions(shell: string): Promise<EnvironmentVariableMutatorOptions> {
-        const isActive = await this.shellIntegrationService.isWorking(shell);
+    private getPrependOptions(shell: string): EnvironmentVariableMutatorOptions {
+        const isActive = this.isShellIntegrationActive(shell);
         // Ideally we would want to prepend exactly once, either at shell integration or process creation.
         // TODO: Stop prepending altogether once https://github.com/microsoft/vscode/issues/145234 is available.
         return isActive
@@ -347,6 +347,21 @@ export class TerminalEnvVarCollectionService implements IExtensionActivationServ
               };
     }
 
+    private isShellIntegrationActive(shell: string): boolean {
+        const isEnabled = this.workspaceService
+            .getConfiguration('terminal')
+            .get<boolean>('integrated.shellIntegration.enabled')!;
+        if (isEnabled && ShellIntegrationShells.includes(identifyShellFromShellPath(shell))) {
+            // Unfortunately shell integration could still've failed in remote scenarios, we can't know for sure:
+            // https://code.visualstudio.com/docs/terminal/shell-integration#_automatic-script-injection
+            return true;
+        }
+        if (!isEnabled) {
+            traceVerbose('Shell integrated is disabled in user settings.');
+        }
+        return false;
+    }
+
     private getEnvironmentVariableCollection(scope: EnvironmentVariableScope = {}) {
         const envVarCollection = this.context.environmentVariableCollection as GlobalEnvironmentVariableCollection;
         return envVarCollection.getScoped(scope);

src/client/terminals/envCollectionActivation/shellIntegration.ts

@@ -0,0 +1,13 @@
+import { TerminalShellType } from '../../common/terminal/types';
+
+/**
+ * This is a list of shells which support shell integration:
+ * https://code.visualstudio.com/docs/terminal/shell-integration
+ */
+export const ShellIntegrationShells = [
+    TerminalShellType.powershell,
+    TerminalShellType.powershellCore,
+    TerminalShellType.bash,
+    TerminalShellType.zsh,
+    TerminalShellType.fish,
+];

src/client/terminals/envCollectionActivation/shellIntegrationService.ts

@@ -12,15 +12,13 @@ import {
     ICodeExecutionHelper,
     ICodeExecutionManager,
     ICodeExecutionService,
-    IShellIntegrationService,
     ITerminalAutoActivation,
     ITerminalEnvVarCollectionService,
 } from './types';
 import { TerminalEnvVarCollectionService } from './envCollectionActivation/service';
 import { IExtensionActivationService, IExtensionSingleActivationService } from '../activation/types';
 import { TerminalDeactivateLimitationPrompt } from './envCollectionActivation/deactivatePrompt';
 import { TerminalIndicatorPrompt } from './envCollectionActivation/indicatorPrompt';
-import { ShellIntegrationService } from './envCollectionActivation/shellIntegrationService';
 
 export function registerTypes(serviceManager: IServiceManager): void {
     serviceManager.addSingleton<ICodeExecutionHelper>(ICodeExecutionHelper, CodeExecutionHelper);
@@ -52,6 +50,5 @@ export function registerTypes(serviceManager: IServiceManager): void {
         IExtensionSingleActivationService,
         TerminalDeactivateLimitationPrompt,
     );
-    serviceManager.addSingleton<IShellIntegrationService>(IShellIntegrationService, ShellIntegrationService);
     serviceManager.addBinding(ITerminalEnvVarCollectionService, IExtensionActivationService);
 }

src/client/terminals/serviceRegistry.ts

@@ -41,8 +41,3 @@ export interface ITerminalEnvVarCollectionService {
      */
     isTerminalPromptSetCorrectly(resource?: Resource): boolean;
 }
-
-export const IShellIntegrationService = Symbol('IShellIntegrationService');
-export interface IShellIntegrationService {
-    isWorking(shell: string): Promise<boolean>;
-}

src/client/terminals/types.ts

@@ -12,6 +12,7 @@ import {
     GlobalEnvironmentVariableCollection,
     ProgressLocation,
     Uri,
+    WorkspaceConfiguration,
     WorkspaceFolder,
 } from 'vscode';
 import {
@@ -37,7 +38,6 @@ import { IInterpreterService } from '../../../client/interpreter/contracts';
 import { PathUtils } from '../../../client/common/platform/pathUtils';
 import { PythonEnvType } from '../../../client/pythonEnvironments/base/info';
 import { PythonEnvironment } from '../../../client/pythonEnvironments/info';
-import { IShellIntegrationService } from '../../../client/terminals/types';
 
 suite('Terminal Environment Variable Collection Service', () => {
     let platform: IPlatformService;
@@ -50,28 +50,29 @@ suite('Terminal Environment Variable Collection Service', () => {
     let applicationEnvironment: IApplicationEnvironment;
     let environmentActivationService: IEnvironmentActivationService;
     let workspaceService: IWorkspaceService;
+    let workspaceConfig: WorkspaceConfiguration;
     let terminalEnvVarCollectionService: TerminalEnvVarCollectionService;
     const progressOptions = {
         location: ProgressLocation.Window,
         title: Interpreters.activatingTerminals,
     };
     let configService: IConfigurationService;
-    let shellIntegrationService: IShellIntegrationService;
     const displayPath = 'display/path';
     const customShell = 'powershell';
     const defaultShell = defaultShells[getOSType()];
 
     setup(() => {
         workspaceService = mock<IWorkspaceService>();
+        workspaceConfig = mock<WorkspaceConfiguration>();
         when(workspaceService.getWorkspaceFolder(anything())).thenReturn(undefined);
         when(workspaceService.workspaceFolders).thenReturn(undefined);
+        when(workspaceService.getConfiguration('terminal')).thenReturn(instance(workspaceConfig));
+        when(workspaceConfig.get<boolean>('integrated.shellIntegration.enabled')).thenReturn(true);
         platform = mock<IPlatformService>();
         when(platform.osType).thenReturn(getOSType());
         interpreterService = mock<IInterpreterService>();
         context = mock<IExtensionContext>();
         shell = mock<IApplicationShell>();
-        shellIntegrationService = mock<IShellIntegrationService>();
-        when(shellIntegrationService.isWorking(anything())).thenResolve(true);
         globalCollection = mock<GlobalEnvironmentVariableCollection>();
         collection = mock<EnvironmentVariableCollection>();
         when(context.environmentVariableCollection).thenReturn(instance(globalCollection));
@@ -107,7 +108,6 @@ suite('Terminal Environment Variable Collection Service', () => {
             instance(workspaceService),
             instance(configService),
             new PathUtils(getOSType() === OSType.Windows),
-            instance(shellIntegrationService),
         );
     });
 
@@ -445,8 +445,8 @@ suite('Terminal Environment Variable Collection Service', () => {
     });
 
     test('Correct track that prompt was set for PS1 if shell integration is disabled', async () => {
-        reset(shellIntegrationService);
-        when(shellIntegrationService.isWorking(anything())).thenResolve(false);
+        reset(workspaceConfig);
+        when(workspaceConfig.get<boolean>('integrated.shellIntegration.enabled')).thenReturn(false);
         when(platform.osType).thenReturn(OSType.Linux);
         const envVars: NodeJS.ProcessEnv = { VIRTUAL_ENV: 'prefix/to/venv', PS1: '(.venv)', ...process.env };
         const ps1Shell = 'bash';

src/test/interpreters/activation/terminalEnvVarCollectionService.unit.test.ts

@@ -13,13 +13,11 @@ import { TerminalCodeExecutionProvider } from '../../client/terminals/codeExecut
 import { TerminalDeactivateLimitationPrompt } from '../../client/terminals/envCollectionActivation/deactivatePrompt';
 import { TerminalIndicatorPrompt } from '../../client/terminals/envCollectionActivation/indicatorPrompt';
 import { TerminalEnvVarCollectionService } from '../../client/terminals/envCollectionActivation/service';
-import { ShellIntegrationService } from '../../client/terminals/envCollectionActivation/shellIntegrationService';
 import { registerTypes } from '../../client/terminals/serviceRegistry';
 import {
     ICodeExecutionHelper,
     ICodeExecutionManager,
     ICodeExecutionService,
-    IShellIntegrationService,
     ITerminalAutoActivation,
     ITerminalEnvVarCollectionService,
 } from '../../client/terminals/types';
@@ -37,7 +35,6 @@ suite('Terminal - Service Registry', () => {
             [ITerminalEnvVarCollectionService, TerminalEnvVarCollectionService],
             [IExtensionSingleActivationService, TerminalIndicatorPrompt],
             [IExtensionSingleActivationService, TerminalDeactivateLimitationPrompt],
-            [IShellIntegrationService, ShellIntegrationService],
         ].forEach((args) => {
             if (args.length === 2) {
                 services