add more logging for #13665

src/vs/platform/files/common/files.ts

@@ -467,6 +467,7 @@ export interface IImportResult {
 export interface IFileOperationResult {
 	message: string;
 	fileOperationResult: FileOperationResult;
+	payload?: any;
 }
 
 export enum FileOperationResult {

src/vs/workbench/parts/files/browser/saveErrorHandler.ts

@@ -95,6 +95,15 @@ export class SaveErrorHandler implements ISaveErrorHandler, IWorkbenchContributi
 
 		// Dirty write prevention
 		if ((<IFileOperationResult>error).fileOperationResult === FileOperationResult.FILE_MODIFIED_SINCE) {
+
+			// TODO@Ben remove me once https://github.com/Microsoft/vscode/issues/13665 is resolved
+			if (error.payload) {
+				error.payload.modelValue = model.getValue();
+				error.payload.modelValueLength = error.payload.modelValue.length;
+
+				console.log(JSON.stringify(error.payload));
+			}
+
 			message = this.instantiationService.createInstance(ResolveSaveConflictMessage, model, null);
 		}
 

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

@@ -621,9 +621,26 @@ export class FileService implements IFileService {
 
 						// Find out if content length has changed
 						if (options.etag !== etag(stat.size, options.mtime)) {
+
+							// TODO@Ben remove me once https://github.com/Microsoft/vscode/issues/13665 is resolved
+							let payload: any;
+							if (this.options.verboseLogging) {
+								const contents = fs.readFileSync(absolutePath);
+								const value = contents.toString();
+
+								payload = {
+									diskByteLength: contents.length,
+									diskValueLength: value.length,
+									diskValue: value,
+									options,
+									stat
+								};
+							}
+
 							return TPromise.wrapError(<IFileOperationResult>{
 								message: 'File Modified Since',
-								fileOperationResult: FileOperationResult.FILE_MODIFIED_SINCE
+								fileOperationResult: FileOperationResult.FILE_MODIFIED_SINCE,
+								payload
 							});
 						}
 					}