1 files changed, 71 insertions, 0 deletions
diff --git a/odb.go b/odb.go
new file mode 100644
index 0000000..5688080
--- /dev/null
+++ b/odb.go
@@ -0,0 +1,71 @@
+package git
+
+/*
+#cgo pkg-config: libgit2
+#include <git2.h>
+#include <git2/errors.h>
+*/
+import "C"
+import (
+	"unsafe"
+	"reflect"
+	"runtime"
+)
+
+var (
+	OBJ_ANY = C.GIT_OBJ_ANY
+	OBJ_BAD = C.GIT_OBJ_BAD
+	OBJ_COMMIT = C.GIT_OBJ_COMMIT
+	OBJ_TREE = C.GIT_OBJ_TREE
+	OBJ_BLOB = C.GIT_OBJ_BLOB
+	OBJ_TAG = C.GIT_OBJ_TAG
+)
+
+type Odb struct {
+	ptr *C.git_odb
+}
+
+func (v *Odb) Exists(oid *Oid) bool {
+	ret := C.git_odb_exists(v.ptr, oid.toC())
+	return ret != 0
+}
+
+func (v *Odb) Write(data []byte, otype int) (oid *Oid, err error) {
+	oid = new(Oid)
+	hdr := (*reflect.SliceHeader)(unsafe.Pointer(&data))
+	ret := C.git_odb_write(oid.toC(), v.ptr, unsafe.Pointer(hdr.Data), C.size_t(hdr.Len), C.git_otype(otype))
+
+	if ret < 0 {
+		err = LastError()
+	}
+
+	return
+}
+
+func (v *Odb) Read(oid *Oid) (obj *OdbObject, err error) {
+	obj = new(OdbObject)
+	ret := C.git_odb_read(&obj.ptr, v.ptr, oid.toC())
+	if ret < 0 {
+		return nil, LastError()
+	}
+
+	runtime.SetFinalizer(obj, freeOdbObject)
+	return
+}
+
+type OdbObject struct {
+	ptr *C.git_odb_object
+}
+
+func freeOdbObject(obj *OdbObject) {
+	C.git_odb_object_free(obj.ptr)
+}
+
+func (v *OdbObject) Type() int {
+	return int(C.git_odb_object_type(v.ptr))
+}
+
+func (v *OdbObject) Size() int64 {
+	return int64(C.git_odb_object_size(v.ptr))
+}
+