Use proper user info in commits

lib/git.py

@@ -73,10 +73,8 @@ class Git:
         committer=None,
         committer_email=None,
         committer_time=None,
-        allow_empty=False,
     ):
         """Add all the files and create a new commit in the current HEAD"""
-        assert allow_empty or self.is_dirty()
 
         if not committer:
             committer = self.committer if self.committer else self.user
@@ -85,33 +83,20 @@ class Git:
             )
             committer_time = committer_time if committer_time else user_time
 
-        try:
+        if self.is_dirty():
             self.repo.index.add_all()
-        except pygit2.GitError as e:
-            if not allow_empty:
-                raise e
 
         self.repo.index.write()
         author = pygit2.Signature(user, user_email, int(user_time.timestamp()))
         committer = pygit2.Signature(
             committer, committer_email, int(committer_time.timestamp())
         )
-        if not parents:
-            try:
-                parents = [self.repo.head.target]
-            except pygit2.GitError as e:
-                parents = []
-                if not allow_empty:
-                    raise e
 
         tree = self.repo.index.write_tree()
         return self.repo.create_commit(
             "HEAD", author, committer, message, tree, parents
         )
 
-    def merge_abort(self):
-        self.repo.state_cleanup()
-
     def last_commit(self):
         try:
             return self.repo.head.target