Wrap git_revparse_single

c_src/revparse.c

@@ -0,0 +1,48 @@
+#include <git2.h>
+#include "geef.h"
+#include "repository.h"
+#include "oid.h"
+#include "object.h"
+#include "revparse.h"
+
+ERL_NIF_TERM
+geef_revparse_single(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
+{
+	ErlNifBinary bin, id;
+	geef_repository *repo;
+	geef_object *obj;
+	ERL_NIF_TERM type, term_obj;
+
+	if (!enif_get_resource(env, argv[0], geef_repository_type, (void **) &repo))
+		return enif_make_badarg(env);
+
+	if (!enif_inspect_iolist_as_binary(env, argv[1], &bin))
+		return enif_make_badarg(env);
+
+	if (geef_terminate_binary(&bin) < 0)
+		return geef_oom(env);
+
+	obj = enif_alloc_resource(geef_object_type, sizeof(geef_object));
+	if (!obj)
+		return geef_oom(env);
+
+	if (git_revparse_single(&obj->obj, repo->repo, (char *) bin.data) < 0) {
+		enif_release_binary(&bin);
+		enif_release_resource(obj);
+		return geef_error(env);
+	}
+
+	type = geef_object_type2atom(git_object_type(obj->obj));
+
+	if (geef_oid_bin(&id, git_object_id(obj->obj)) < 0)
+		return geef_oom(env);
+
+
+	term_obj = enif_make_resource(env, obj);
+	enif_release_resource(obj);
+
+	obj->repo = repo;
+	enif_keep_resource(repo);
+
+	return enif_make_tuple4(env, atoms.ok, term_obj, type, enif_make_binary(env, &id));
+}