save participants do not run on shutdown

src/vs/platform/lifecycle/common/lifecycle.ts

@@ -32,6 +32,12 @@ export interface ILifecycleService {
 
 	_serviceBrand: any;
 
+	/**
+	 * A flag indicating if the application is in the process of shutting down. This will be true
+	 * before the onWillShutdown event is fired and false if the shutdown is being vetoed.
+	 */
+	willShutdown: boolean;
+
 	/**
 	 * Fired before shutdown happens. Allows listeners to veto against the
 	 * shutdown.
@@ -47,6 +53,7 @@ export interface ILifecycleService {
 
 export const NullLifecycleService: ILifecycleService = {
 	_serviceBrand: null,
+	willShutdown: false,
 	onWillShutdown: () => ({ dispose() { } }),
 	onShutdown: () => ({ dispose() { } })
 };

src/vs/test/utils/servicesTestUtils.ts

@@ -607,6 +607,8 @@ export class TestLifecycleService implements ILifecycleService {
 
 	public _serviceBrand: any;
 
+	public willShutdown: boolean;
+	
 	private _onWillShutdown = new Emitter<ShutdownEvent>();
 	private _onShutdown = new Emitter<void>();
 

src/vs/workbench/parts/files/common/editors/textFileEditorModel.ts

@@ -17,6 +17,7 @@ import diagnostics = require('vs/base/common/diagnostics');
 import types = require('vs/base/common/types');
 import {IModelContentChangedEvent} from 'vs/editor/common/editorCommon';
 import {IMode} from 'vs/editor/common/modes';
+import {ILifecycleService} from 'vs/platform/lifecycle/common/lifecycle';
 import {ITextFileService, IAutoSaveConfiguration, ModelState, ITextFileEditorModel, ISaveErrorHandler, ISaveParticipant, StateChange} from 'vs/workbench/parts/files/common/files';
 import {EncodingMode, EditorModel} from 'vs/workbench/common/editor';
 import {BaseTextEditorModel} from 'vs/workbench/common/editor/textEditorModel';
@@ -64,6 +65,7 @@ export class TextFileEditorModel extends BaseTextEditorModel implements ITextFil
 		@IModeService modeService: IModeService,
 		@IModelService modelService: IModelService,
 		@IFileService private fileService: IFileService,
+		@ILifecycleService private lifecycleService: ILifecycleService,
 		@IInstantiationService private instantiationService: IInstantiationService,
 		@ITelemetryService private telemetryService: ITelemetryService,
 		@ITextFileService private textFileService: ITextFileService
@@ -441,9 +443,11 @@ export class TextFileEditorModel extends BaseTextEditorModel implements ITextFil
 		// A save participant can still change the model now and since we are so close to saving
 		// we do not want to trigger another auto save or similar, so we block this
 		// In addition we update our version right after in case it changed because of a model change
+		// We DO NOT run any save participant if we are in the shutdown phase and files are being
+		// saved as a result of that.
 		let saveParticipantPromise = TPromise.as(versionId);
 
-		if (TextFileEditorModel.saveParticipant) {
+		if (TextFileEditorModel.saveParticipant && !this.lifecycleService.willShutdown) {
 			saveParticipantPromise = TPromise.as(undefined).then(() => {
 				this.blockModelContentChange = true;
 				return TextFileEditorModel.saveParticipant.participate(this, { isAutoSaved });

src/vs/workbench/services/lifecycle/electron-browser/lifecycleService.ts

@@ -20,6 +20,8 @@ export class LifecycleService implements ILifecycleService {
 	private _onWillShutdown = new Emitter<ShutdownEvent>();
 	private _onShutdown = new Emitter<void>();
 
+	private _willShutdown: boolean;
+
 	constructor(
 		@IMessageService private messageService: IMessageService,
 		@IWindowService private windowService: IWindowService
@@ -27,6 +29,10 @@ export class LifecycleService implements ILifecycleService {
 		this.registerListeners();
 	}
 
+	public get willShutdown(): boolean {
+		return this._willShutdown;
+	}
+
 	public get onWillShutdown(): Event<ShutdownEvent> {
 		return this._onWillShutdown.event;
 	}
@@ -40,8 +46,12 @@ export class LifecycleService implements ILifecycleService {
 
 		// Main side indicates that window is about to unload, check for vetos
 		ipc.on('vscode:beforeUnload', (event, reply: { okChannel: string, cancelChannel: string }) => {
+			this._willShutdown = true;
+
+			// trigger onWillShutdown events and veto collecting
 			this.onBeforeUnload().done(veto => {
 				if (veto) {
+					this._willShutdown = false; // reset this flag since the shutdown has been vetoed!
 					ipc.send(reply.cancelChannel, windowId);
 				} else {
 					this._onShutdown.fire();