Only do a git push if one has commits to push

This is the first use of my pure Dart implementation of Git. Hurray!
Now hopefully, I can slowly get rid of git_bindings entirely.

lib/core/git_repo.dart

@@ -11,6 +11,8 @@ import 'package:gitjournal/core/notes_folder_fs.dart';
 import 'package:gitjournal/settings.dart';
 import 'package:gitjournal/utils/logger.dart';
 
+import 'package:dart_git/git.dart' as git;
+
 class NoteRepoResult {
   bool error;
   String noteFilePath;
@@ -148,6 +150,14 @@ class GitNoteRepository {
   }
 
   Future<void> push() async {
+    // Only push if we have something we need to push
+    try {
+      var repo = await git.GitRepository.load(gitDirPath);
+      if ((await repo.canPush()) == false) {
+        return;
+      }
+    } catch (_) {}
+
     try {
       await _gitRepo.push();
     } on GitException catch (ex) {

pubspec.lock

@@ -71,6 +71,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.5"
+  buffer:
+    dependency: transitive
+    description:
+      name: buffer
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.6"
   charcode:
     dependency: transitive
     description:
@@ -120,6 +127,15 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.16.1"
+  dart_git:
+    dependency: "direct main"
+    description:
+      path: "."
+      ref: HEAD
+      resolved-ref: "121c514cb5960afaa2dcef09a0e5c285b23cc1e2"
+      url: "https://github.com/GitJournal/dart_git.git"
+    source: git
+    version: "0.0.1"
   device_info:
     dependency: "direct main"
     description:
@@ -327,6 +343,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.4"
+  ini:
+    dependency: transitive
+    description:
+      name: ini
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
   intl:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -30,6 +30,9 @@ dependencies:
   page_transition: "^1.1.5"
   provider: ^3.2.0
   git_bindings: ^0.0.12
+  dart_git:
+    git: https://github.com/GitJournal/dart_git.git
+    #path: /Users/vishesh/src/gitjournal/dart_git
   fetch_app_logs: ^0.0.3
   flutter_runtime_env: ^0.0.2
   yaml_serializer: ^0.0.5