Improve flashing error handling

Changelog-entry: Improve flashing error handling
Change-type: patch

lib/gui/app/components/flash-results/flash-results.tsx

@@ -127,12 +127,12 @@ export function FlashResults({
 	};
 } & FlexProps) {
 	const [showErrorsInfo, setShowErrorsInfo] = React.useState(false);
-	const allFailed = results.devices.successful === 0;
+	const allFailed = !skip && results.devices.successful === 0;
 	const someFailed = results.devices.failed !== 0 || errors.length !== 0;
 	const effectiveSpeed = _.round(
 		bytesToMegabytes(
 			results.sourceMetadata.size /
-				(results.bytesWritten / results.averageFlashingSpeed),
+				(results.sourceMetadata.blockmappedSize / results.averageFlashingSpeed),
 		),
 		1,
 	);
@@ -155,7 +155,7 @@ export function FlashResults({
 					<Txt>{middleEllipsis(image, 24)}</Txt>
 				</Flex>
 				<Txt fontSize={24} color="#fff" mb="17px">
-					Flash Complete!
+					Flash {allFailed ? 'Failed' : 'Complete'}!
 				</Txt>
 				{skip ? <Txt color="#7e8085">Validation has been skipped</Txt> : null}
 			</Flex>

lib/gui/app/modules/image-writer.ts

@@ -17,7 +17,7 @@
 import { Drive as DrivelistDrive } from 'drivelist';
 import * as electron from 'electron';
 import * as sdk from 'etcher-sdk';
-import * as _ from 'lodash';
+import { Dictionary } from 'lodash';
 import * as ipc from 'node-ipc';
 import * as os from 'os';
 import * as path from 'path';
@@ -133,6 +133,14 @@ function writerEnv() {
 interface FlashResults {
 	skip?: boolean;
 	cancelled?: boolean;
+	results?: {
+		bytesWritten: number;
+		devices: {
+			failed: number;
+			successful: number;
+		};
+		errors: Error[];
+	};
 }
 
 async function performWrite(
@@ -177,10 +185,12 @@ async function performWrite(
 		});
 
 		ipc.server.on('done', (event) => {
-			event.results.errors = _.map(event.results.errors, (data) => {
+			event.results.errors = event.results.errors.map(
-				return errors.fromJSON(data);
+				(data: Dictionary<any> & { message: string }) => {
-			});
+					return errors.fromJSON(data);
-			_.merge(flashResults, event);
+				},
+			);
+			flashResults.results = event.results;
 		});
 
 		ipc.server.on('abort', () => {
@@ -209,7 +219,7 @@ async function performWrite(
 		const argv = writerArgv();
 
 		ipc.server.on('start', async () => {
-			console.log(`Elevating command: ${_.join(argv, ' ')}`);
+			console.log(`Elevating command: ${argv.join(' ')}`);
 			const env = writerEnv();
 			try {
 				const results = await permissions.elevateCommand(argv, {
@@ -231,11 +241,11 @@ async function performWrite(
 			}
 			console.log('Flash results', flashResults);
 
-			// This likely means the child died halfway through
+			// The flash wasn't cancelled and we didn't get a 'done' event
 			if (
 				!flashResults.cancelled &&
 				!flashResults.skip &&
-				!_.get(flashResults, ['results', 'bytesWritten'])
+				flashResults.results === undefined
 			) {
 				reject(
 					errors.createUserError({

lib/gui/app/pages/main/Flash.tsx

@@ -59,6 +59,27 @@ const getErrorMessageFromCode = (errorCode: string) => {
 	return '';
 };
 
+function notifySuccess(
+	iconPath: string,
+	basename: string,
+	drives: any,
+	devices: { successful: number; failed: number },
+) {
+	notification.send(
+		'Flash complete!',
+		messages.info.flashComplete(basename, drives, devices),
+		iconPath,
+	);
+}
+
+function notifyFailure(iconPath: string, basename: string, drives: any) {
+	notification.send(
+		'Oops! Looks like the flash failed.',
+		messages.error.flashFailure(basename, drives),
+		iconPath,
+	);
+}
+
 async function flashImageToDrive(
 	isFlashing: boolean,
 	goToSuccess: () => void,
@@ -84,20 +105,20 @@ async function flashImageToDrive(
 		if (!flashState.wasLastFlashCancelled()) {
 			const {
 				results = { devices: { successful: 0, failed: 0 } },
+				skip,
+				cancelled,
 			} = flashState.getFlashResults();
-			notification.send(
+			if (!skip && !cancelled) {
-				'Flash complete!',
+				if (results.devices.successful > 0) {
-				messages.info.flashComplete(basename, drives as any, results.devices),
+					notifySuccess(iconPath, basename, drives, results.devices);
-				iconPath,
+				} else {
-			);
+					notifyFailure(iconPath, basename, drives);
+				}
+			}
 			goToSuccess();
 		}
 	} catch (error) {
-		notification.send(
+		notifyFailure(iconPath, basename, drives);
-			'Oops! Looks like the flash failed.',
-			messages.error.flashFailure(path.basename(image.path), drives),
-			iconPath,
-		);
 		let errorMessage = getErrorMessageFromCode(error.code);
 		if (!errorMessage) {
 			error.image = basename;