Pass a signature to LibGit2Sharp Commits. Closes #722

Related to libgit2/libgit2sharp#1163

Without a signature param, Commit throws an exception if no username is found, but BuildSignature returns "unknown" if no username is found. Fixes the crash by passing BuildSignature's results to each commit action.

Author: rubberduck203

Rubberduck.SourceControl/GitProvider.cs

@@ -152,12 +152,12 @@ public override IRepository InitVBAProject(string directory)
                     repo.Stage(stat.FilePath);
                 }
 
-                //If the user hasn't set up their name, this could throw an exception.
-                //There may be other situations in which this could occur, but I'm not sure what they are right now.
-                //Todo: consider a more specific exception that inherits from SourceControlException.
                 try
                 {
-                    repo.Commit("Intial Commit");
+                    //The default behavior of LibGit2Sharp.Repo.Commit is to throw an exception if no signature is found,
+                    // but BuildSignature() does not throw if a signature is not found, it returns "unknown" instead.
+                    // so we pass a signature that won't throw along to the commit.
+                    repo.Commit("Intial Commit", GetSignature());
                 }
                 catch(LibGit2SharpException ex)
                 {
@@ -250,7 +250,10 @@ public override void Commit(string message)
         {
             try
             {
-                _repo.Commit(message);
+                //The default behavior of LibGit2Sharp.Repo.Commit is to throw an exception if no signature is found,
+                // but BuildSignature() does not throw if a signature is not found, it returns "unknown" instead.
+                // so we pass a signature that won't throw along to the commit.
+                _repo.Commit(message, GetSignature());
             }
             catch (LibGit2SharpException ex)
             {