Fix #42402

src/vs/workbench/parts/output/browser/media/open_log_file.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><polygon fill="#656565" points="10,2 7.414,2 8.414,3 9,3 9,3.586 9,4 9,4.414 9,6 12,6 12,13 4,13 4,8 3,8 3,14 13,14 13,5"/><polygon fill="#00539C" points="5,1 3,1 5,3 1,3 1,5 5,5 3,7 5,7 8,4"/></svg>
\ No newline at end of file

src/vs/workbench/parts/output/browser/media/open_log_file_inverse.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><polygon fill="#C5C5C5" points="10,2 7.414,2 8.414,3 9,3 9,3.586 9,4 9,4.414 9,6 12,6 12,13 4,13 4,8 3,8 3,14 13,14 13,5"/><polygon fill="#75BEFF" points="5,1 3,1 5,3 1,3 1,5 5,5 3,7 5,7 8,4"/></svg>
\ No newline at end of file

src/vs/workbench/parts/output/browser/media/output.css

@@ -29,3 +29,12 @@
 .hc-black .monaco-workbench .output-action.output-scroll-unlock {
 	background: url('output_unlock_inverse.svg') center center no-repeat;
 }
+
+.monaco-workbench .output-action.open-log-file {
+	background: url('open_log_file.svg') center center no-repeat;
+}
+
+.vs-dark .monaco-workbench .output-action.open-log-file,
+.hc-black .monaco-workbench .output-action.open-log-file {
+	background: url('open_log_file_inverse.svg') center center no-repeat;
+}

src/vs/workbench/parts/output/browser/outputActions.ts

@@ -7,7 +7,7 @@
 import { TPromise } from 'vs/base/common/winjs.base';
 import * as nls from 'vs/nls';
 import { IAction, Action } from 'vs/base/common/actions';
-import { IOutputService, OUTPUT_PANEL_ID, IOutputChannelRegistry, Extensions as OutputExt, IOutputChannelIdentifier } from 'vs/workbench/parts/output/common/output';
+import { IOutputService, OUTPUT_PANEL_ID, IOutputChannelRegistry, Extensions as OutputExt, IOutputChannelIdentifier, COMMAND_OPEN_LOG_VIEWER } from 'vs/workbench/parts/output/common/output';
 import { SelectActionItem } from 'vs/base/browser/ui/actionbar/actionbar';
 import { IPartService } from 'vs/workbench/services/part/common/partService';
 import { IPanelService } from 'vs/workbench/services/panel/common/panelService';
@@ -18,6 +18,8 @@ import { IThemeService } from 'vs/platform/theme/common/themeService';
 import { IContextViewService } from 'vs/platform/contextview/browser/contextView';
 import { Registry } from 'vs/platform/registry/common/platform';
 import { groupBy } from 'vs/base/common/arrays';
+import { ICommandService } from 'vs/platform/commands/common/commands';
+import URI from 'vs/base/common/uri';
 
 export class ToggleOutputAction extends TogglePanelAction {
 
@@ -157,3 +159,35 @@ export class SwitchOutputActionItem extends SelectActionItem {
 		this.setOptions(options, Math.max(0, selected), separatorIndex !== -1 ? separatorIndex : void 0);
 	}
 }
+
+export class OpenLogOutputFile extends Action {
+
+	public static readonly ID = 'workbench.output.action.openLogOutputFile';
+	public static readonly LABEL = nls.localize('openInLogViewer', "Open Log File");
+
+	private disposables: IDisposable[] = [];
+
+	constructor(
+		@ICommandService private commandService: ICommandService,
+		@IOutputService private outputService: IOutputService
+	) {
+		super(OpenLogOutputFile.ID, OpenLogOutputFile.LABEL, 'output-action open-log-file');
+		this.outputService.onActiveOutputChannel(this.update, this, this.disposables);
+		this.update();
+	}
+
+	private update(): void {
+		const logFile = this.getActiveLogChannelFile();
+		this.enabled = !!logFile;
+	}
+
+	public run(): TPromise<any> {
+		return this.commandService.executeCommand(COMMAND_OPEN_LOG_VIEWER, this.getActiveLogChannelFile());
+	}
+
+	private getActiveLogChannelFile(): URI {
+		const channel = this.outputService.getActiveChannel();
+		const identifier = channel ? this.outputService.getChannels().filter(c => c.id === channel.id)[0] : null;
+		return identifier ? identifier.file : null;
+	}
+}

src/vs/workbench/parts/output/browser/outputPanel.ts

@@ -19,7 +19,7 @@ import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
 import { EditorInput, EditorOptions } from 'vs/workbench/common/editor';
 import { AbstractTextResourceEditor } from 'vs/workbench/browser/parts/editor/textResourceEditor';
 import { OUTPUT_PANEL_ID, IOutputService, CONTEXT_IN_OUTPUT } from 'vs/workbench/parts/output/common/output';
-import { SwitchOutputAction, SwitchOutputActionItem, ClearOutputAction, ToggleOutputScrollLockAction } from 'vs/workbench/parts/output/browser/outputActions';
+import { SwitchOutputAction, SwitchOutputActionItem, ClearOutputAction, ToggleOutputScrollLockAction, OpenLogOutputFile } from 'vs/workbench/parts/output/browser/outputActions';
 import { IThemeService } from 'vs/platform/theme/common/themeService';
 import { IEditorGroupService } from 'vs/workbench/services/group/common/groupService';
 import { ITextFileService } from 'vs/workbench/services/textfile/common/textfiles';
@@ -55,7 +55,8 @@ export class OutputPanel extends AbstractTextResourceEditor {
 			this.actions = [
 				this.instantiationService.createInstance(SwitchOutputAction),
 				this.instantiationService.createInstance(ClearOutputAction, ClearOutputAction.ID, ClearOutputAction.LABEL),
-				this.instantiationService.createInstance(ToggleOutputScrollLockAction, ToggleOutputScrollLockAction.ID, ToggleOutputScrollLockAction.LABEL)
+				this.instantiationService.createInstance(ToggleOutputScrollLockAction, ToggleOutputScrollLockAction.ID, ToggleOutputScrollLockAction.LABEL),
+				this.instantiationService.createInstance(OpenLogOutputFile)
 			];
 
 			this.actions.forEach(a => {

src/vs/workbench/parts/output/common/output.ts

@@ -61,6 +61,8 @@ export const MAX_OUTPUT_LENGTH = 10000 /* Max. number of output lines to show in
 
 export const CONTEXT_IN_OUTPUT = new RawContextKey<boolean>('inOutput', false);
 
+export const CONTEXT_ACTIVE_LOG_OUTPUT = new RawContextKey<boolean>('activeLogOutput', false);
+
 export const IOutputService = createDecorator<IOutputService>(OUTPUT_SERVICE_ID);
 
 /**

src/vs/workbench/parts/output/electron-browser/output.contribution.ts

@@ -12,8 +12,8 @@ import { KeybindingsRegistry, IKeybindings } from 'vs/platform/keybinding/common
 import { registerSingleton } from 'vs/platform/instantiation/common/extensions';
 import { IWorkbenchActionRegistry, Extensions as ActionExtensions } from 'vs/workbench/common/actions';
 import { OutputService, LogContentProvider } from 'vs/workbench/parts/output/electron-browser/outputServices';
-import { ToggleOutputAction, ClearOutputAction } from 'vs/workbench/parts/output/browser/outputActions';
-import { OUTPUT_MODE_ID, OUTPUT_MIME, OUTPUT_PANEL_ID, IOutputService, CONTEXT_IN_OUTPUT, LOG_SCHEME, COMMAND_OPEN_LOG_VIEWER, LOG_MODE_ID, LOG_MIME } from 'vs/workbench/parts/output/common/output';
+import { ToggleOutputAction, ClearOutputAction, OpenLogOutputFile } from 'vs/workbench/parts/output/browser/outputActions';
+import { OUTPUT_MODE_ID, OUTPUT_MIME, OUTPUT_PANEL_ID, IOutputService, CONTEXT_IN_OUTPUT, LOG_SCHEME, COMMAND_OPEN_LOG_VIEWER, LOG_MODE_ID, LOG_MIME, CONTEXT_ACTIVE_LOG_OUTPUT } from 'vs/workbench/parts/output/common/output';
 import { PanelRegistry, Extensions, PanelDescriptor } from 'vs/workbench/browser/panel';
 import { CommandsRegistry, ICommandHandler } from 'vs/platform/commands/common/commands';
 import { ContextKeyExpr } from 'vs/platform/contextkey/common/contextkey';
@@ -168,6 +168,18 @@ registerAction({
 	}
 });
 
+registerAction({
+	id: 'workbench.action.openActiveLogOutputFile',
+	title: nls.localize('openActiveLogOutputFile', "View: Open Active Log Output File"),
+	menu: {
+		menuId: MenuId.CommandPalette,
+		when: CONTEXT_ACTIVE_LOG_OUTPUT
+	},
+	handler(accessor) {
+		accessor.get(IInstantiationService).createInstance(OpenLogOutputFile).run();
+	}
+});
+
 CommandsRegistry.registerCommand(COMMAND_OPEN_LOG_VIEWER, function (accessor: ServicesAccessor, file: URI) {
 	if (file) {
 		const editorService = accessor.get(IWorkbenchEditorService);

src/vs/workbench/parts/output/electron-browser/outputServices.ts

@@ -16,7 +16,7 @@ import { IInstantiationService } from 'vs/platform/instantiation/common/instanti
 import { IStorageService, StorageScope } from 'vs/platform/storage/common/storage';
 import { Registry } from 'vs/platform/registry/common/platform';
 import { EditorOptions } from 'vs/workbench/common/editor';
-import { IOutputChannelIdentifier, IOutputChannel, IOutputService, Extensions, OUTPUT_PANEL_ID, IOutputChannelRegistry, OUTPUT_SCHEME, OUTPUT_MIME, MAX_OUTPUT_LENGTH, LOG_SCHEME, LOG_MIME } from 'vs/workbench/parts/output/common/output';
+import { IOutputChannelIdentifier, IOutputChannel, IOutputService, Extensions, OUTPUT_PANEL_ID, IOutputChannelRegistry, OUTPUT_SCHEME, OUTPUT_MIME, MAX_OUTPUT_LENGTH, LOG_SCHEME, LOG_MIME, CONTEXT_ACTIVE_LOG_OUTPUT } from 'vs/workbench/parts/output/common/output';
 import { OutputPanel } from 'vs/workbench/parts/output/browser/outputPanel';
 import { IPanelService } from 'vs/workbench/services/panel/common/panelService';
 import { IModelService } from 'vs/editor/common/services/modelService';
@@ -40,6 +40,7 @@ import { binarySearch } from 'vs/base/common/arrays';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
 import { Schemas } from 'vs/base/common/network';
 import { ILifecycleService } from 'vs/platform/lifecycle/common/lifecycle';
+import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
 
 const OUTPUT_ACTIVE_CHANNEL_KEY = 'output.activechannel';
 
@@ -439,6 +440,7 @@ export class OutputService extends Disposable implements IOutputService, ITextMo
 		@ITelemetryService private telemetryService: ITelemetryService,
 		@ILogService private logService: ILogService,
 		@ILifecycleService private lifecycleService: ILifecycleService,
+		@IContextKeyService private contextKeyService: IContextKeyService,
 	) {
 		super();
 		this.activeChannelIdInStorage = this.storageService.get(OUTPUT_ACTIVE_CHANNEL_KEY, StorageScope.WORKSPACE, null);
@@ -510,21 +512,24 @@ export class OutputService extends Disposable implements IOutputService, ITextMo
 		this.channels.set(channelId, channel);
 		if (this.activeChannelIdInStorage === channelId) {
 			this.activeChannel = channel;
-			this.onDidPanelOpen(this.panelService.getActivePanel());
+			this.onDidPanelOpen(this.panelService.getActivePanel())
+				.then(() => this._onActiveOutputChannel.fire(channelId));
 		}
 	}
 
-	private onDidPanelOpen(panel: IPanel): void {
+	private onDidPanelOpen(panel: IPanel): TPromise<void> {
 		if (panel && panel.getId() === OUTPUT_PANEL_ID) {
 			this._outputPanel = <OutputPanel>this.panelService.getActivePanel();
 			if (this.activeChannel) {
-				this.doShowChannel(this.activeChannel, true);
+				return this.doShowChannel(this.activeChannel, true);
 			}
 		}
+		return TPromise.as(null);
 	}
 
 	private onDidPanelClose(panel: IPanel): void {
 		if (this._outputPanel && panel.getId() === OUTPUT_PANEL_ID) {
+			CONTEXT_ACTIVE_LOG_OUTPUT.bindTo(this.contextKeyService).set(false);
 			this._outputPanel.clearInput();
 		}
 	}
@@ -577,13 +582,17 @@ export class OutputService extends Disposable implements IOutputService, ITextMo
 		}
 	}
 
-	private doShowChannel(channel: IOutputChannel, preserveFocus: boolean): void {
+	private doShowChannel(channel: IOutputChannel, preserveFocus: boolean): TPromise<void> {
 		if (this._outputPanel) {
-			this._outputPanel.setInput(this.createInput(channel), EditorOptions.create({ preserveFocus: preserveFocus }));
-			if (!preserveFocus) {
-				this._outputPanel.focus();
-			}
+			CONTEXT_ACTIVE_LOG_OUTPUT.bindTo(this.contextKeyService).set(channel instanceof FileOutputChannel);
+			return this._outputPanel.setInput(this.createInput(channel), EditorOptions.create({ preserveFocus: preserveFocus }))
+				.then(() => {
+					if (!preserveFocus) {
+						this._outputPanel.focus();
+					}
+				});
 		}
+		return TPromise.as(null);
 	}
 
 	private isChannelShown(channel: IOutputChannel): boolean {