Code/repo search (#2582)

Indexed search of repository contents (for default branch only)

models/update.go

@@ -263,6 +263,10 @@ func pushUpdate(opts PushUpdateOptions) (repo *Repository, err error) {
 		commits = ListToPushCommits(l)
 	}
 
+	if opts.RefFullName == git.BranchPrefix+repo.DefaultBranch {
+		UpdateRepoIndexer(repo)
+	}
+
 	if err := CommitRepoAction(CommitRepoActionOptions{
 		PusherName:  opts.PusherName,
 		RepoOwnerID: owner.ID,