Add Object.oid to get the raw object id

pygit2.c

@@ -959,9 +959,15 @@ Object_dealloc(Object* self)
 }
 
 static PyObject *
-Object_get_type(Object *self)
+Object_get_oid(Object *self)
 {
-    return PyInt_FromLong(git_object_type(self->obj));
+    const git_oid *oid;
+
+    oid = git_object_id(self->obj);
+    if (!oid)
+        Py_RETURN_NONE;
+
+    return PyString_FromStringAndSize(oid->id, GIT_OID_RAWSZ);
 }
 
 static PyObject *
@@ -976,6 +982,12 @@ Object_get_sha(Object *self)
     return git_oid_to_py_str(oid);
 }
 
+static PyObject *
+Object_get_type(Object *self)
+{
+    return PyInt_FromLong(git_object_type(self->obj));
+}
+
 static PyObject *
 Object_read_raw(Object *self)
 {
@@ -1007,8 +1019,9 @@ cleanup:
 }
 
 static PyGetSetDef Object_getseters[] = {
-    {"type", (getter)Object_get_type, NULL, "type number", NULL},
+    {"oid", (getter)Object_get_oid, NULL, "object id", NULL},
     {"sha", (getter)Object_get_sha, NULL, "hex SHA", NULL},
+    {"type", (getter)Object_get_type, NULL, "type number", NULL},
     {NULL}
 };
 

test/test_blob.py

@@ -29,6 +29,7 @@
 
 from __future__ import absolute_import
 from __future__ import unicode_literals
+from binascii import b2a_hex
 import unittest
 
 import pygit2
@@ -44,6 +45,9 @@ class BlobTest(utils.BareRepoTestCase):
 
     def test_read_blob(self):
         blob = self.repo[BLOB_SHA]
+        self.assertEqual(blob.sha, BLOB_SHA)
+        sha = b2a_hex(blob.oid).decode('ascii')
+        self.assertEqual(sha, BLOB_SHA)
         self.assertTrue(isinstance(blob, pygit2.Blob))
         self.assertEqual(pygit2.GIT_OBJ_BLOB, blob.type)
         self.assertEqual(b'a contents\n', blob.data)