Add Repository#RevParseSingle.

revparse.go

@@ -58,3 +58,20 @@ func (r *Repository) RevParse(spec string) (*RevSpec, error) {
 
 	return newRevSpecFrom(ptr, r), nil
 }
+
+func (r *Repository) RevParseSingle(spec string) (Object, error) {
+	cspec := C.CString(spec)
+	defer C.free(unsafe.Pointer(cspec))
+
+	var obj *C.git_object
+
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ecode := C.git_revparse_single(&obj, r.ptr, cspec)
+	if ecode != 0 {
+		return nil, MakeGitError(ecode)
+	}
+
+	return allocObject(obj, r), nil
+}

revparse_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 )
 
-func TestRevParseSingle(t *testing.T) {
+func TestRevParse(t *testing.T) {
 	repo := createTestRepo(t)
 	defer os.RemoveAll(repo.Workdir())
 
@@ -17,6 +17,18 @@ func TestRevParseSingle(t *testing.T) {
 	checkObject(t, revSpec.From(), commitId)
 }
 
+func TestRevParseSingle(t *testing.T) {
+	repo := createTestRepo(t)
+	defer os.RemoveAll(repo.Workdir())
+
+	commitId, _ := seedTestRepo(t, repo)
+
+	obj, err := repo.RevParseSingle("HEAD")
+	checkFatal(t, err)
+
+	checkObject(t, obj, commitId)
+}
+
 func checkObject(t *testing.T, obj Object, id *Oid) {
 	if obj == nil {
 		t.Fatalf("bad object")