Namespace the records

This makes it useful for users of the bindings. The naming is the same
as the module to allow elixir to treat the records in much the same
way as its native module/record hybrid.

src/geef_index.erl

@@ -39,20 +39,20 @@ write(Pid) ->
     gen_server:call(Pid, write).
 
 %% @doc Write out the index's contents to its the repository.
--spec write_tree(pid()) -> {ok, oid()} | {error, term()}.
+-spec write_tree(pid()) -> {ok, geef_oid()} | {error, term()}.
 write_tree(Pid) ->
     gen_server:call(Pid, write_tree).
 
 %% @doc Write out the index's contents to the given repository
--spec write_tree(pid(), pid()) -> {ok, oid()} | {error, term()}.
+-spec write_tree(pid(), pid()) -> {ok, geef_oid()} | {error, term()}.
 write_tree(Pid, Repo) ->
     gen_server:call(Pid, {write_tree, Repo}).
 
-read_tree(Pid, #object{type=tree, handle=TreeHandle}) ->
+read_tree(Pid, #geef_object{type=tree, handle=TreeHandle}) ->
     gen_server:call(Pid, {read_tree, TreeHandle}).
 
 %% @doc Add an entry to the index
--spec add(pid(), index_entry()) -> ok | {error, term()}.
+-spec add(pid(), geef_index_entry()) -> ok | {error, term()}.
 add(Pid, Entry) ->
     gen_server:call(Pid, {add, Entry}).
 
@@ -83,12 +83,12 @@ handle_call(write, _From, State = #state{handle=Handle}) ->
     {reply, Reply, State};
 handle_call(write_tree, _From, State = #state{handle=Handle}) ->
     {ok, Oid} = geef_nif:index_write_tree(Handle),
-    Reply = #oid{oid=Oid},
+    Reply = #geef_oid{oid=Oid},
     {reply, Reply, State};
 handle_call({write_tree, Repo}, _From, State = #state{handle=Handle}) ->
     RepoHandle = geef_repo:handle(Repo),
     {ok, Oid} = geef_nif:index_write_tree(Handle, RepoHandle),
-    Reply = {ok, #oid{oid=Oid}},
+    Reply = {ok, #geef_oid{oid=Oid}},
     {reply, Reply, State};
 handle_call(clear, _From, State = #state{handle=Handle}) ->
     Reply = geef_nif:index_clear(Handle),