Method Uninstall

internal/instructions/install.go:178–207

Uninstall removes the link/copy CAM placed (when safe) and deletes the row.

(ctx context.Context, installID int64)

// Uninstall removes the link/copy CAM placed (when safe) and deletes the row.
func (s *Store) Uninstall(ctx context.Context, installID int64) error {
	if err := s.Init(ctx); err != nil {
		return err
	}
	db, err := s.open()
	if err != nil {
		return err
	}
	defer db.Close()

	var ins Install
	var instructionID int64
	var created string
	err = db.QueryRowContext(ctx, `SELECT id, instruction_id, app, level, project_dir, target_path, link_kind, created_at FROM instruction_installs WHERE id = ?`, installID).
		Scan(&ins.ID, &instructionID, &ins.App, &ins.Level, &ins.ProjectDir, &ins.TargetPath, &ins.LinkKind, &created)
	if err != nil {
		// Idempotent: nothing to remove.
		return nil
	}

	var name string
	if nerr := db.QueryRowContext(ctx, `SELECT name FROM instructions WHERE id = ?`, instructionID).Scan(&name); nerr == nil {
		removeInstalledFile(ins, managedFilePath(name))
	}

	if _, err := db.ExecContext(ctx, `DELETE FROM instruction_installs WHERE id = ?`, installID); err != nil {
		return fmt.Errorf("instructions: delete install: %w", err)
	}
	return nil
}

// removeInstalledFile deletes the installed file only when CAM can prove it owns
// it: a symlink pointing at managedFile, or a copy whose content still matches.