Add button to reload window with increase memory limit (#46220)

* adding dialog to reload window with increased memory limit (configurable via new setting)

src/vs/code/electron-main/window.ts

@@ -560,6 +560,7 @@ export class CodeWindow implements ICodeWindow {
 
 		if (cli) {
 			configuration['disable-extensions'] = cli['disable-extensions'];
+			configuration['max-memory'] = cli['max-memory'];
 		}
 
 		configuration.isInitialStartup = false; // since this is a reload

src/vs/workbench/parts/files/browser/editors/textFileEditor.ts

@@ -28,6 +28,7 @@ import { IWorkbenchEditorService } from 'vs/workbench/services/editor/common/edi
 import { IThemeService } from 'vs/platform/theme/common/themeService';
 import { IEditorGroupService } from 'vs/workbench/services/group/common/groupService';
 import { ScrollType } from 'vs/editor/common/editorCommon';
+import { IWindowService } from 'vs/platform/windows/common/windows';
 
 /**
  * An implementation of editor for file system resources.
@@ -48,6 +49,7 @@ export class TextFileEditor extends BaseTextEditor {
 		@IThemeService themeService: IThemeService,
 		@IEditorGroupService editorGroupService: IEditorGroupService,
 		@ITextFileService textFileService: ITextFileService,
+		@IWindowService private windowService: IWindowService
 	) {
 		super(TextFileEditor.ID, telemetryService, instantiationService, storageService, configurationService, themeService, textFileService, editorGroupService);
 
@@ -165,6 +167,18 @@ export class TextFileEditor extends BaseTextEditor {
 					}));
 				}
 
+				if ((<FileOperationError>error).fileOperationResult === FileOperationResult.FILE_EXCEED_MEMORY_LIMIT) {
+					let memoryLimit = this.configurationService.getValue<number>(null, 'files.maxMemoryForLargeFilesMB');
+
+					return TPromise.wrapError<void>(errors.create(toErrorMessage(error), {
+						actions: [
+							new Action('workbench.window.action.reloadWithIncreasedMemoryLimit', nls.localize('reloadWithIncreasedMemoryLimit', "Reload with {0}MB", memoryLimit), null, true, () => {
+								return this.windowService.reloadWindow({ _: [], 'max-memory': memoryLimit }).then(() => true);
+							})
+						]
+					}));
+				}
+
 				// Otherwise make sure the error bubbles up
 				return TPromise.wrapError<void>(error);
 			});

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

@@ -282,6 +282,11 @@ configurationRegistry.registerConfiguration({
 		'files.defaultLanguage': {
 			'type': 'string',
 			'description': nls.localize('defaultLanguage', "The default language mode that is assigned to new files.")
+		},
+		'files.maxMemoryForLargeFilesMB': {
+			'type': 'number',
+			'default': 4096,
+			'description': nls.localize('maxMemoryForLargeFilesMB', "The new limit on memory in MB to be used by the application when trying to open large files. Alternatively, you can launch the application with --max-memory=NEWSIZE.")
 		}
 	}
 });

src/vs/workbench/services/files/node/fileService.ts

@@ -319,7 +319,7 @@ export class FileService implements IFileService {
 			if (typeof stat.size === 'number') {
 				if (stat.size > Math.max(this.environmentService.args['max-memory'] * 1024 * 1024 || 0, MAX_HEAP_SIZE)) {
 					return onStatError(new FileOperationError(
-						nls.localize('fileTooLargeForHeapError', "File size exceeds window memory limit, please try to run code --max-memory=NEWSIZE"),
+						nls.localize('fileTooLargeForHeapError', "File size exceeds window memory limit. Try launching with a higher memory limit"),
 						FileOperationResult.FILE_EXCEED_MEMORY_LIMIT
 					));
 				}
@@ -469,7 +469,7 @@ export class FileService implements IFileService {
 
 						if (totalBytesRead > Math.max(this.environmentService.args['max-memory'] * 1024 * 1024 || 0, MAX_HEAP_SIZE)) {
 							finish(new FileOperationError(
-								nls.localize('fileTooLargeForHeapError', "File size exceeds window memory limit, please try to run code --max-memory=NEWSIZE"),
+								nls.localize('fileTooLargeForHeapError', "File size exceeds window memory limit. Try launching with a higher memory limit"),
 								FileOperationResult.FILE_EXCEED_MEMORY_LIMIT
 							));
 						}