func ShortenOids(ids []*Oid, minlen int) (int, error) {
shorten := C.git_oid_shorten_new(C.size_t(minlen))
if shorten == nil {
panic("Out of memory")
}
defer C.git_oid_shorten_free(shorten)
var ret C.int
for _, id := range ids {
buf := make([]byte, 41)
C.git_oid_fmt((*C.char)(unsafe.Pointer(&buf[0])), id.toC())
buf[40] = 0
ret = C.git_oid_shorten_add(shorten, (*C.char)(unsafe.Pointer(&buf[0])))
if ret < 0 {
return int(ret), LastError()
}
}
return int(ret), nil
}
func (os *OidShorten) Free() {
C.git_oid_shorten_free(os.git_oid_shorten)
}