Files
geef/src/geef_object.erl
2013-05-04 00:25:06 +02:00

58 lines
1.6 KiB
Erlang

-module(geef_object).
-ifdef(TEST).
-include_lib("eunit/include/eunit.hrl").
-endif.
-include("geef_records.hrl").
-export([lookup/2, lookup/3, id/1]).
-spec lookup(pid(), oid() | iolist()) -> {ok, object()} | {error, term()}.
lookup(Repo, #oid{oid=Oid}) ->
case geef_repo:lookup_object(Repo, Oid) of
{ok, Type, Handle} ->
{ok, #object{type=Type, handle=Handle}};
{error, Err} ->
{error, Err}
end;
lookup(Repo, Id) ->
lookup(Repo, geef_oid:parse(Id)).
%% As lookup/2, but it asserts that the type is correct
-spec lookup(pid(), oid() | iolist(), atom()) -> {ok, object()} | {error, term()}.
lookup(Repo, Id, Type) ->
case lookup(Repo, Id) of
{ok, Obj = #object{type=Type}} ->
{ok, Obj};
{error, Err} ->
{error, Err}
end.
-spec id(object()) -> {ok, oid()} | {error, term()}.
id(#object{handle=Handle}) ->
case geef_nif:object_id(Handle) of
{ok, Oid} ->
#oid{oid=Oid};
Other ->
Other
end.
-ifdef(TEST).
lookup_test() ->
{ok, Repo} = geef_repo:open(".."),
{ok, #object{type=commit}} = lookup(Repo, geef_oid:parse("b5b68cce8b92ca0e7bd48430617ac10c0f2c2923")),
{ok, #object{type=commit}} = lookup(Repo, "b5b68cce8b92ca0e7bd48430617ac10c0f2c2923"),
{ok, #object{type=commit}} = lookup(Repo, ["b5b68cce8b92ca0e7", "bd48430617ac10c0f2c2923"]),
{ok, #object{type=commit}} = lookup(Repo, <<"b5b68cce8b92ca0e7bd48430617ac10c0f2c2923">>).
id_test() ->
{ok, Repo} = geef_repo:open(".."),
Sha = <<"b5b68cce8b92ca0e7bd48430617ac10c0f2c2923">>,
Id = geef_oid:parse(Sha),
{ok, Commit = #object{type=commit}} = lookup(Repo, Sha),
Id = id(Commit).
-endif.