larksuite-cli/internal/selfupdate/updater_unix.go

// Copyright (c) 2026 Lark Technologies Pte. Ltd.
// SPDX-License-Identifier: MIT

//go:build !windows

package selfupdate

// PrepareSelfReplace is a no-op on Unix.
// Unix allows overwriting a running executable via inode semantics.
func (u *Updater) PrepareSelfReplace() (restore func(), err error) {
	return func() {}, nil
}

// CleanupStaleFiles is a no-op on Unix (no .old files are created).
func (u *Updater) CleanupStaleFiles() {}

// CanRestorePreviousVersion reports whether PrepareSelfReplace created a
// restorable backup for the current update attempt.
func (u *Updater) CanRestorePreviousVersion() bool {
	if u.RestoreAvailableOverride != nil {
		return u.RestoreAvailableOverride()
	}
	return u.backupCreated
}