mirror of
https://github.com/octoleo/restic.git
synced 2024-12-13 06:37:54 +00:00
34e67e3510
The code always assumed that the upgrade happens in place. Thus writing the upgrade to a separate file fails, when trying to remove the file stored at that location.
31 lines
730 B
Go
31 lines
730 B
Go
//go:build windows
|
|
// +build windows
|
|
|
|
package selfupdate
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/restic/restic/internal/errors"
|
|
)
|
|
|
|
// Rename (rather than remove) the running version. The running binary will be locked
|
|
// on Windows and cannot be removed while still executing.
|
|
func removeResticBinary(dir, target string) error {
|
|
// nothing to do if the target does not exist
|
|
if _, err := os.Stat(target); errors.Is(err, os.ErrNotExist) {
|
|
return nil
|
|
}
|
|
|
|
backup := filepath.Join(dir, filepath.Base(target)+".bak")
|
|
if _, err := os.Stat(backup); err == nil {
|
|
_ = os.Remove(backup)
|
|
}
|
|
if err := os.Rename(target, backup); err != nil {
|
|
return fmt.Errorf("unable to rename target file: %v", err)
|
|
}
|
|
return nil
|
|
}
|