handle no git repo case

app/js/index.js

@@ -6,6 +6,10 @@
 		$('.js-container').html(gitlit.templates.main({files: files}));
 	});
 
+	ipcRenderer.on('isNoGitLfsRepo', (event, repoDir) => {
+		$('.js-container').html(gitlit.templates.isNoGitLfsRepo({repoDir: repoDir}));
+	});
+
 	ipcRenderer.on('notification', (event, notification) => {
 		if (notification.message) {
 			var notice = PNotify.alert({

app/js/templates.js

@@ -38,5 +38,10 @@ gitlit.templates = {
 				Refresh
 			</a>
 		</div>
-		`)
+	`),
+	isNoGitLfsRepo: ejs.compile(`
+		<div class="alert alert-danger">
+			<%= repoDir %> is not a git lfs repo.
+		</div>
+	`)
 };

app/main.js

@@ -103,12 +103,16 @@ function createWindow() {
 		getLfsFileList(repoDir, (err, files) => {
 			if (err) {
 				console.error(err);
-				process.exit(1);
+
+				win.webContents.send('isNoGitLfsRepo', repoDir);
+				return;
 			}
 			getLfsLocks(repoDir, (err, lockedFiles) => {
 				if (err) {
 					console.error(err);
-					process.exit(1);
+
+					win.webContents.send('isNoGitLfsRepo', repoDir);
+					return;
 				}
 				let allFiles = [];