syncNotes: Catch the exception outside the StateContainer

The StateContainer doesn't have access to the snackbar.

lib/screens/journal_listing.dart

@@ -49,9 +49,11 @@ class JournalListingScreen extends StatelessWidget {
       ),
       floatingActionButton: createButton,
       body: Center(
-        child: RefreshIndicator(
-          child: Scrollbar(child: buildJournalList(notesFolder)),
-          onRefresh: () async => _syncRepo(context),
+        child: Builder(
+          builder: (context) => RefreshIndicator(
+            child: Scrollbar(child: buildJournalList(notesFolder)),
+            onRefresh: () async => _syncRepo(context),
+          ),
         ),
       ),
       drawer: AppDrawer(),
@@ -59,8 +61,12 @@ class JournalListingScreen extends StatelessWidget {
   }
 
   void _syncRepo(BuildContext context) async {
-    final container = StateContainer.of(context);
-    await container.syncNotes();
+    try {
+      final container = StateContainer.of(context);
+      await container.syncNotes();
+    } catch (e) {
+      showSnackbar(context, e.toString());
+    }
   }
 
   void _newPost(BuildContext context) {

lib/state_container.dart

@@ -68,7 +68,7 @@ class StateContainerState extends State<StateContainer> {
     }
 
     _loadNotes();
-    syncNotes();
+    _syncNotes();
   }
 
   void removeExistingRemoteClone() async {
@@ -87,7 +87,7 @@ class StateContainerState extends State<StateContainer> {
     await appState.notesFolder.loadRecursively();
   }
 
-  Future<void> syncNotes() async {
+  Future<void> syncNotes({bool doNotThrow = false}) async {
     if (!appState.remoteGitRepoConfigured) {
       Fimber.d("Not syncing because RemoteRepo not configured");
       return true;
@@ -112,11 +112,15 @@ class StateContainerState extends State<StateContainer> {
       if (shouldLogGitException(e)) {
         await FlutterCrashlytics().logException(e, stacktrace);
       }
-      showSnackbar(context, e.cause);
+      if (!doNotThrow) rethrow;
     }
     await _loadNotes();
   }
 
+  Future<void> _syncNotes() {
+    return syncNotes(doNotThrow: true);
+  }
+
   void createFolder(NotesFolder parent, String folderName) async {
     var newFolderPath = p.join(parent.folderPath, folderName);
     var newFolder = NotesFolder(parent, newFolderPath);
@@ -126,7 +130,7 @@ class StateContainerState extends State<StateContainer> {
     parent.addFolder(newFolder);
 
     _gitRepo.addFolder(newFolder).then((NoteRepoResult _) {
-      syncNotes();
+      _syncNotes();
     });
   }
 
@@ -135,7 +139,7 @@ class StateContainerState extends State<StateContainer> {
 
     folder.parent.removeFolder(folder);
     _gitRepo.removeFolder(folder.folderPath).then((NoteRepoResult _) {
-      syncNotes();
+      _syncNotes();
     });
   }
 
@@ -146,7 +150,7 @@ class StateContainerState extends State<StateContainer> {
     _gitRepo
         .renameFolder(oldFolderPath, folder.folderPath)
         .then((NoteRepoResult _) {
-      syncNotes();
+      _syncNotes();
     });
   }
 
@@ -155,7 +159,7 @@ class StateContainerState extends State<StateContainer> {
     note.rename(newFileName);
 
     _gitRepo.renameNote(oldNotePath, note.filePath).then((NoteRepoResult _) {
-      syncNotes();
+      _syncNotes();
     });
   }
 
@@ -167,12 +171,17 @@ class StateContainerState extends State<StateContainer> {
     note.move(destFolder);
 
     _gitRepo.moveNote(oldNotePath, note.filePath).then((NoteRepoResult _) {
-      syncNotes();
+      _syncNotes();
     });
   }
 
   void addNote(Note note) {
-    insertNote(0, note);
+    Fimber.d("State Container addNote");
+    note.parent.insert(0, note);
+    note.updateModified();
+    _gitRepo.addNote(note).then((NoteRepoResult _) {
+      _syncNotes();
+    });
   }
 
   void removeNote(Note note) {
@@ -184,23 +193,14 @@ class StateContainerState extends State<StateContainer> {
       // We wait an aritfical amount of time, so that the user has a change to undo
       // their delete operation, and that commit is not synced with the server, till then.
       await Future.delayed(const Duration(seconds: 4));
-      syncNotes();
+      _syncNotes();
     });
   }
 
   void undoRemoveNote(Note note) {
     note.parent.insert(0, note);
     _gitRepo.resetLastCommit().then((NoteRepoResult _) {
-      syncNotes();
-    });
-  }
-
-  void insertNote(int index, Note note) {
-    Fimber.d("State Container insertNote " + index.toString());
-    note.parent.insert(index, note);
-    note.updateModified();
-    _gitRepo.addNote(note).then((NoteRepoResult _) {
-      syncNotes();
+      _syncNotes();
     });
   }
 
@@ -208,7 +208,7 @@ class StateContainerState extends State<StateContainer> {
     Fimber.d("State Container updateNote");
     note.updateModified();
     _gitRepo.updateNote(note).then((NoteRepoResult _) {
-      syncNotes();
+      _syncNotes();
     });
   }
 
@@ -230,7 +230,7 @@ class StateContainerState extends State<StateContainer> {
 
       await _persistConfig();
       _loadNotes();
-      syncNotes();
+      _syncNotes();
 
       setState(() {});
     }();

lib/widgets/sync_button.dart

@@ -5,6 +5,7 @@ import 'package:connectivity/connectivity.dart';
 
 import 'package:gitjournal/appstate.dart';
 import 'package:gitjournal/state_container.dart';
+import 'package:gitjournal/utils.dart';
 
 class SyncButton extends StatefulWidget {
   @override
@@ -59,8 +60,12 @@ class _SyncButtonState extends State<SyncButton> {
   }
 
   void _syncRepo() async {
-    final container = StateContainer.of(context);
-    await container.syncNotes();
+    try {
+      final container = StateContainer.of(context);
+      await container.syncNotes();
+    } catch (e) {
+      showSnackbar(context, e.toString());
+    }
   }
 
   IconData _syncStatusIcon() {