64 lines
1.1 KiB
Go
64 lines
1.1 KiB
Go
|
package state
|
||
|
|
|
||
|
|
import (
|
||
|
|
"github.com/hashicorp/terraform/terraform"
|
||
|
|
)
|
||
|
|
|
||
|
|
// BackupState wraps a State that backs up the state on the first time that
|
||
|
|
// a WriteState or PersistState is called.
|
||
|
|
//
|
||
|
|
// If Path exists, it will be overwritten.
|
||
|
|
type BackupState struct {
|
||
|
|
Real State
|
||
|
|
Path string
|
||
|
|
|
||
|
|
done bool
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *BackupState) State() *terraform.State {
|
||
|
|
return s.Real.State()
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *BackupState) RefreshState() error {
|
||
|
|
return s.Real.RefreshState()
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *BackupState) WriteState(state *terraform.State) error {
|
||
|
|
if !s.done {
|
||
|
|
if err := s.backup(); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return s.Real.WriteState(state)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *BackupState) PersistState() error {
|
||
|
|
if !s.done {
|
||
|
|
if err := s.backup(); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return s.Real.PersistState()
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *BackupState) backup() error {
|
||
|
|
state := s.Real.State()
|
||
|
|
if state == nil {
|
||
|
|
if err := s.Real.RefreshState(); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
state = s.Real.State()
|
||
|
|
}
|
||
|
|
|
||
|
|
ls := &LocalState{Path: s.Path}
|
||
|
|
if err := ls.WriteState(state); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
s.done = true
|
||
|
|
return nil
|
||
|
|
}
|