Added option to run multiple Python files in separate terminals (#21223)

Closes #21215
#14094

Added the option to assign a dedicated terminal for each Python file:


![image](https://github.com/microsoft/vscode-python/assets/13199757/b01248e4-c826-4de0-b15f-cde959965e68)

package.json

@@ -304,6 +304,12 @@
                 "icon": "$(play)",
                 "title": "%python.command.python.execInTerminalIcon.title%"
             },
+            {
+                "category": "Python",
+                "command": "python.execInNewTerminal",
+                "icon": "$(play)",
+                "title": "%python.command.python.execInNewTerminal.title%"
+            },
             {
                 "category": "Python",
                 "command": "python.debugInTerminal",
@@ -1626,6 +1632,13 @@
                     "title": "%python.command.python.execInTerminalIcon.title%",
                     "when": "false && editorLangId == python"
                 },
+                {
+                    "category": "Python",
+                    "command": "python.execInNewTerminal",
+                    "icon": "$(play)",
+                    "title": "%python.command.python.execInNewTerminal.title%",
+                    "when": "false && editorLangId == python"
+                },
                 {
                     "category": "Python",
                     "command": "python.debugInTerminal",
@@ -1784,6 +1797,12 @@
                     "title": "%python.command.python.execInTerminalIcon.title%",
                     "when": "resourceLangId == python && !isInDiffEditor && !virtualWorkspace && shellExecutionSupported"
                 },
+                {
+                    "command": "python.execInNewTerminal",
+                    "group": "navigation@0",
+                    "title": "%python.command.python.execInNewTerminal.title%",
+                    "when": "resourceLangId == python && !isInDiffEditor && !virtualWorkspace && shellExecutionSupported"
+                },
                 {
                     "command": "python.debugInTerminal",
                     "group": "navigation@1",

package.nls.json

@@ -7,6 +7,7 @@
     "python.command.python.execInTerminal.title": "Run Python File in Terminal",
     "python.command.python.debugInTerminal.title": "Debug Python File",
     "python.command.python.execInTerminalIcon.title": "Run Python File",
+    "python.command.python.execInNewTerminal.title": "Run Python File in Separate Terminal",
     "python.command.python.setInterpreter.title": "Select Interpreter",
     "python.command.python.clearWorkspaceInterpreter.title": "Clear Workspace Interpreter Setting",
     "python.command.python.viewOutput.title": "Show Output",

src/client/common/constants.ts

@@ -44,6 +44,7 @@ export namespace Commands {
     export const Enable_SourceMap_Support = 'python.enableSourceMapSupport';
     export const Exec_In_Terminal = 'python.execInTerminal';
     export const Exec_In_Terminal_Icon = 'python.execInTerminal-icon';
+    export const Exec_In_Separate_Terminal = 'python.execInNewTerminal';
     export const Exec_Selection_In_Django_Shell = 'python.execSelectionInDjangoShell';
     export const Exec_Selection_In_Terminal = 'python.execSelectionInTerminal';
     export const GetSelectedInterpreterPath = 'python.interpreterPath';

src/client/common/terminal/factory.ts

@@ -24,14 +24,14 @@ export class TerminalServiceFactory implements ITerminalServiceFactory {
     ) {
         this.terminalServices = new Map<string, TerminalService>();
     }
-    public getTerminalService(options: TerminalCreationOptions): ITerminalService {
+    public getTerminalService(options: TerminalCreationOptions & { newTerminalPerFile?: boolean }): ITerminalService {
         const resource = options?.resource;
         const title = options?.title;
         let terminalTitle = typeof title === 'string' && title.trim().length > 0 ? title.trim() : 'Python';
         const interpreter = options?.interpreter;
-        const id = this.getTerminalId(terminalTitle, resource, interpreter);
+        const id = this.getTerminalId(terminalTitle, resource, interpreter, options.newTerminalPerFile);
         if (!this.terminalServices.has(id)) {
-            if (this.terminalServices.size >= 1 && resource) {
+            if (resource && options.newTerminalPerFile) {
                 terminalTitle = `${terminalTitle}: ${path.basename(resource.fsPath).replace('.py', '')}`;
             }
             options.title = terminalTitle;
@@ -51,13 +51,19 @@ export class TerminalServiceFactory implements ITerminalServiceFactory {
         title = typeof title === 'string' && title.trim().length > 0 ? title.trim() : 'Python';
         return new TerminalService(this.serviceContainer, { resource, title });
     }
-    private getTerminalId(title: string, resource?: Uri, interpreter?: PythonEnvironment): string {
+    private getTerminalId(
+        title: string,
+        resource?: Uri,
+        interpreter?: PythonEnvironment,
+        newTerminalPerFile?: boolean,
+    ): string {
         if (!resource && !interpreter) {
             return title;
         }
         const workspaceFolder = this.serviceContainer
             .get<IWorkspaceService>(IWorkspaceService)
             .getWorkspaceFolder(resource || undefined);
-        return `${title}:${workspaceFolder?.uri.fsPath || ''}:${interpreter?.path}:${resource?.fsPath || ''}`;
+        const fileId = resource && newTerminalPerFile ? resource.fsPath : '';
+        return `${title}:${workspaceFolder?.uri.fsPath || ''}:${interpreter?.path}:${fileId}`;
     }
 }

src/client/common/terminal/types.ts

@@ -97,7 +97,7 @@ export interface ITerminalServiceFactory {
      * @returns {ITerminalService}
      * @memberof ITerminalServiceFactory
      */
-    getTerminalService(options: TerminalCreationOptions): ITerminalService;
+    getTerminalService(options: TerminalCreationOptions & { newTerminalPerFile?: boolean }): ITerminalService;
     createTerminalService(resource?: Uri, title?: string): ITerminalService;
 }
 

src/client/telemetry/index.ts

@@ -825,6 +825,12 @@ export interface IEventNamePropertyMapping {
          * @type {('command' | 'icon')}
          */
         trigger?: 'command' | 'icon';
+        /**
+         * Whether user chose to execute this Python file in a separate terminal or not.
+         *
+         * @type {boolean}
+         */
+        newTerminalPerFile?: boolean;
     };
     /**
      * Telemetry Event sent when user executes code against Django Shell.

src/client/terminals/codeExecution/codeExecutionManager.ts

@@ -36,25 +36,31 @@ export class CodeExecutionManager implements ICodeExecutionManager {
     }
 
     public registerCommands() {
-        [Commands.Exec_In_Terminal, Commands.Exec_In_Terminal_Icon].forEach((cmd) => {
-            this.disposableRegistry.push(
-                this.commandManager.registerCommand(cmd as any, async (file: Resource) => {
-                    const interpreterService = this.serviceContainer.get<IInterpreterService>(IInterpreterService);
-                    const interpreter = await interpreterService.getActiveInterpreter(file);
-                    if (!interpreter) {
-                        this.commandManager.executeCommand(Commands.TriggerEnvironmentSelection, file).then(noop, noop);
-                        return;
-                    }
-                    const trigger = cmd === Commands.Exec_In_Terminal ? 'command' : 'icon';
-                    await this.executeFileInTerminal(file, trigger)
-                        .then(() => {
-                            if (this.shouldTerminalFocusOnStart(file))
-                                this.commandManager.executeCommand('workbench.action.terminal.focus');
+        [Commands.Exec_In_Terminal, Commands.Exec_In_Terminal_Icon, Commands.Exec_In_Separate_Terminal].forEach(
+            (cmd) => {
+                this.disposableRegistry.push(
+                    this.commandManager.registerCommand(cmd as any, async (file: Resource) => {
+                        const interpreterService = this.serviceContainer.get<IInterpreterService>(IInterpreterService);
+                        const interpreter = await interpreterService.getActiveInterpreter(file);
+                        if (!interpreter) {
+                            this.commandManager
+                                .executeCommand(Commands.TriggerEnvironmentSelection, file)
+                                .then(noop, noop);
+                            return;
+                        }
+                        const trigger = cmd === Commands.Exec_In_Terminal ? 'command' : 'icon';
+                        await this.executeFileInTerminal(file, trigger, {
+                            newTerminalPerFile: cmd === Commands.Exec_In_Separate_Terminal,
                         })
-                        .catch((ex) => traceError('Failed to execute file in terminal', ex));
-                }),
-            );
-        });
+                            .then(() => {
+                                if (this.shouldTerminalFocusOnStart(file))
+                                    this.commandManager.executeCommand('workbench.action.terminal.focus');
+                            })
+                            .catch((ex) => traceError('Failed to execute file in terminal', ex));
+                    }),
+                );
+            },
+        );
         this.disposableRegistry.push(
             this.commandManager.registerCommand(Commands.Exec_Selection_In_Terminal as any, async (file: Resource) => {
                 const interpreterService = this.serviceContainer.get<IInterpreterService>(IInterpreterService);
@@ -87,8 +93,16 @@ export class CodeExecutionManager implements ICodeExecutionManager {
             ),
         );
     }
-    private async executeFileInTerminal(file: Resource, trigger: 'command' | 'icon') {
-        sendTelemetryEvent(EventName.EXECUTION_CODE, undefined, { scope: 'file', trigger });
+    private async executeFileInTerminal(
+        file: Resource,
+        trigger: 'command' | 'icon',
+        options?: { newTerminalPerFile: boolean },
+    ): Promise<void> {
+        sendTelemetryEvent(EventName.EXECUTION_CODE, undefined, {
+            scope: 'file',
+            trigger,
+            newTerminalPerFile: options?.newTerminalPerFile,
+        });
         const codeExecutionHelper = this.serviceContainer.get<ICodeExecutionHelper>(ICodeExecutionHelper);
         file = file instanceof Uri ? file : undefined;
         let fileToExecute = file ? file : await codeExecutionHelper.getFileToExecute();
@@ -110,7 +124,7 @@ export class CodeExecutionManager implements ICodeExecutionManager {
         }
 
         const executionService = this.serviceContainer.get<ICodeExecutionService>(ICodeExecutionService, 'standard');
-        await executionService.executeFile(fileToExecute);
+        await executionService.executeFile(fileToExecute, options);
     }
 
     @captureTelemetry(EventName.EXECUTION_CODE, { scope: 'selection' }, false)

src/client/terminals/codeExecution/terminalCodeExecution.ts

@@ -19,7 +19,7 @@ import { ICodeExecutionService } from '../../terminals/types';
 export class TerminalCodeExecutionProvider implements ICodeExecutionService {
     private hasRanOutsideCurrentDrive = false;
     protected terminalTitle!: string;
-    private replActive = new Map<string, Promise<boolean>>();
+    private replActive?: Promise<boolean>;
     constructor(
         @inject(ITerminalServiceFactory) protected readonly terminalServiceFactory: ITerminalServiceFactory,
         @inject(IConfigurationService) protected readonly configurationService: IConfigurationService,
@@ -29,13 +29,13 @@ export class TerminalCodeExecutionProvider implements ICodeExecutionService {
         @inject(IInterpreterService) protected readonly interpreterService: IInterpreterService,
     ) {}
 
-    public async executeFile(file: Uri) {
+    public async executeFile(file: Uri, options?: { newTerminalPerFile: boolean }) {
         await this.setCwdForFileExecution(file);
         const { command, args } = await this.getExecuteFileArgs(file, [
             file.fsPath.fileToCommandArgumentForPythonExt(),
         ]);
 
-        await this.getTerminalService(file).sendCommand(command, args);
+        await this.getTerminalService(file, options).sendCommand(command, args);
     }
 
     public async execute(code: string, resource?: Uri): Promise<void> {
@@ -48,26 +48,24 @@ export class TerminalCodeExecutionProvider implements ICodeExecutionService {
     }
     public async initializeRepl(resource?: Uri) {
         const terminalService = this.getTerminalService(resource);
-        let replActive = this.replActive.get(resource?.fsPath || '');
-        if (replActive && (await replActive)) {
+        if (this.replActive && (await this.replActive)) {
             await terminalService.show();
             return;
         }
-        replActive = new Promise<boolean>(async (resolve) => {
+        this.replActive = new Promise<boolean>(async (resolve) => {
             const replCommandArgs = await this.getExecutableInfo(resource);
             terminalService.sendCommand(replCommandArgs.command, replCommandArgs.args);
 
             // Give python repl time to start before we start sending text.
             setTimeout(() => resolve(true), 1000);
         });
-        this.replActive.set(resource?.fsPath || '', replActive);
         this.disposables.push(
             terminalService.onDidCloseTerminal(() => {
-                this.replActive.delete(resource?.fsPath || '');
+                this.replActive = undefined;
             }),
         );
 
-        await replActive;
+        await this.replActive;
     }
 
     public async getExecutableInfo(resource?: Uri, args: string[] = []): Promise<PythonExecInfo> {
@@ -83,10 +81,11 @@ export class TerminalCodeExecutionProvider implements ICodeExecutionService {
     public async getExecuteFileArgs(resource?: Uri, executeArgs: string[] = []): Promise<PythonExecInfo> {
         return this.getExecutableInfo(resource, executeArgs);
     }
-    private getTerminalService(resource?: Uri): ITerminalService {
+    private getTerminalService(resource?: Uri, options?: { newTerminalPerFile: boolean }): ITerminalService {
         return this.terminalServiceFactory.getTerminalService({
             resource,
             title: this.terminalTitle,
+            newTerminalPerFile: options?.newTerminalPerFile,
         });
     }
     private async setCwdForFileExecution(file: Uri) {

src/client/terminals/types.ts

@@ -8,7 +8,7 @@ export const ICodeExecutionService = Symbol('ICodeExecutionService');
 
 export interface ICodeExecutionService {
     execute(code: string, resource?: Uri): Promise<void>;
-    executeFile(file: Uri): Promise<void>;
+    executeFile(file: Uri, options?: { newTerminalPerFile: boolean }): Promise<void>;
     initializeRepl(resource?: Uri): Promise<void>;
 }
 

src/test/common/terminals/factory.unit.test.ts

@@ -105,7 +105,7 @@ suite('Terminal Service Factory', () => {
         expect(notSameAsThirdInstance).to.not.equal(true, 'Instances are the same');
     });
 
-    test('Ensure different terminal is returned when using different resources from the same workspace', () => {
+    test('Ensure same terminal is returned when using different resources from the same workspace', () => {
         const file1A = Uri.file('1a');
         const file2A = Uri.file('2a');
         const fileB = Uri.file('b');
@@ -130,6 +130,51 @@ suite('Terminal Service Factory', () => {
         const terminalForFile2A = factory.getTerminalService({ resource: file2A }) as SynchronousTerminalService;
         const terminalForFileB = factory.getTerminalService({ resource: fileB }) as SynchronousTerminalService;
 
+        const terminalsAreSameForWorkspaceA = terminalForFile1A.terminalService === terminalForFile2A.terminalService;
+        expect(terminalsAreSameForWorkspaceA).to.equal(true, 'Instances are not the same for Workspace A');
+
+        const terminalsForWorkspaceABAreDifferent =
+            terminalForFile1A.terminalService === terminalForFileB.terminalService;
+        expect(terminalsForWorkspaceABAreDifferent).to.equal(
+            false,
+            'Instances should be different for different workspaces',
+        );
+    });
+
+    test('When `newTerminalPerFile` is true, ensure different terminal is returned when using different resources from the same workspace', () => {
+        const file1A = Uri.file('1a');
+        const file2A = Uri.file('2a');
+        const fileB = Uri.file('b');
+        const workspaceUriA = Uri.file('A');
+        const workspaceUriB = Uri.file('B');
+        const workspaceFolderA = TypeMoq.Mock.ofType<WorkspaceFolder>();
+        workspaceFolderA.setup((w) => w.uri).returns(() => workspaceUriA);
+        const workspaceFolderB = TypeMoq.Mock.ofType<WorkspaceFolder>();
+        workspaceFolderB.setup((w) => w.uri).returns(() => workspaceUriB);
+
+        workspaceService
+            .setup((w) => w.getWorkspaceFolder(TypeMoq.It.isValue(file1A)))
+            .returns(() => workspaceFolderA.object);
+        workspaceService
+            .setup((w) => w.getWorkspaceFolder(TypeMoq.It.isValue(file2A)))
+            .returns(() => workspaceFolderA.object);
+        workspaceService
+            .setup((w) => w.getWorkspaceFolder(TypeMoq.It.isValue(fileB)))
+            .returns(() => workspaceFolderB.object);
+
+        const terminalForFile1A = factory.getTerminalService({
+            resource: file1A,
+            newTerminalPerFile: true,
+        }) as SynchronousTerminalService;
+        const terminalForFile2A = factory.getTerminalService({
+            resource: file2A,
+            newTerminalPerFile: true,
+        }) as SynchronousTerminalService;
+        const terminalForFileB = factory.getTerminalService({
+            resource: fileB,
+            newTerminalPerFile: true,
+        }) as SynchronousTerminalService;
+
         const terminalsAreSameForWorkspaceA = terminalForFile1A.terminalService === terminalForFile2A.terminalService;
         expect(terminalsAreSameForWorkspaceA).to.equal(false, 'Instances are the same for Workspace A');
 

src/test/terminals/codeExecution/codeExecutionManager.unit.test.ts

@@ -77,12 +77,15 @@ suite('Terminal - Code Execution Manager', () => {
         executionManager.registerCommands();
 
         const sorted = registered.sort();
-        expect(sorted).to.deep.equal([
-            Commands.Exec_In_Terminal,
-            Commands.Exec_In_Terminal_Icon,
-            Commands.Exec_Selection_In_Django_Shell,
-            Commands.Exec_Selection_In_Terminal,
-        ]);
+        expect(sorted).to.deep.equal(
+            [
+                Commands.Exec_In_Separate_Terminal,
+                Commands.Exec_In_Terminal,
+                Commands.Exec_In_Terminal_Icon,
+                Commands.Exec_Selection_In_Django_Shell,
+                Commands.Exec_Selection_In_Terminal,
+            ].sort(),
+        );
     });
 
     test('Ensure executeFileInterTerminal will do nothing if no file is avialble', async () => {
@@ -135,7 +138,10 @@ suite('Terminal - Code Execution Manager', () => {
         const fileToExecute = Uri.file('x');
         await commandHandler!(fileToExecute);
         helper.verify(async (h) => h.getFileToExecute(), TypeMoq.Times.never());
-        executionService.verify(async (e) => e.executeFile(TypeMoq.It.isValue(fileToExecute)), TypeMoq.Times.once());
+        executionService.verify(
+            async (e) => e.executeFile(TypeMoq.It.isValue(fileToExecute), TypeMoq.It.isAny()),
+            TypeMoq.Times.once(),
+        );
     });
 
     test('Ensure executeFileInterTerminal will use active file', async () => {
@@ -164,7 +170,10 @@ suite('Terminal - Code Execution Manager', () => {
             .returns(() => executionService.object);
 
         await commandHandler!(fileToExecute);
-        executionService.verify(async (e) => e.executeFile(TypeMoq.It.isValue(fileToExecute)), TypeMoq.Times.once());
+        executionService.verify(
+            async (e) => e.executeFile(TypeMoq.It.isValue(fileToExecute), TypeMoq.It.isAny()),
+            TypeMoq.Times.once(),
+        );
     });
 
     async function testExecutionOfSelectionWithoutAnyActiveDocument(commandId: string, executionSericeId: string) {