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package git
/*
#cgo pkg-config: libgit2
#include <git2.h>
#include <git2/errors.h>
*/
import "C"
import (
"unsafe"
"reflect"
"runtime"
)
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, (*OdbObject).Free)
return
}
type OdbObject struct {
ptr *C.git_odb_object
}
func (v *OdbObject) Free() {
runtime.SetFinalizer(v, nil)
C.git_odb_object_free(v.ptr)
}
func (object *OdbObject) Id() (oid *Oid) {
return newOidFromC(C.git_odb_object_id(object.ptr))
}
func (object *OdbObject) Len() (len uint64) {
return uint64(C.git_odb_object_size(object.ptr))
}
func (object *OdbObject) Data() (data []byte) {
var c_blob unsafe.Pointer = C.git_odb_object_data(object.ptr)
var blob []byte
len := int(C.git_odb_object_size(object.ptr))
sliceHeader := (*reflect.SliceHeader)((unsafe.Pointer(&blob)))
sliceHeader.Cap = len
sliceHeader.Len = len
sliceHeader.Data = uintptr(c_blob)
return blob
}
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