Function surgeryFreelistRebuildFunc

cmd/bbolt/command/command_surgery_freelist.go:79–111

(srcDBPath string, cfg surgeryBaseOptions)

}

func surgeryFreelistRebuildFunc(srcDBPath string, cfg surgeryBaseOptions) error {
	// Ensure source file exists.
	fi, err := checkSourceDBPath(srcDBPath)
	if err != nil {
		return err
	}

	// make sure the freelist isn't present in the file.
	meta, err := readMetaPage(srcDBPath)
	if err != nil {
		return err
	}
	if meta.IsFreelistPersisted() {
		return ErrSurgeryFreelistAlreadyExist
	}

	if err := common.CopyFile(srcDBPath, cfg.outputDBFilePath); err != nil {
		return fmt.Errorf("[freelist rebuild] copy file failed: %w", err)
	}

	// bboltDB automatically reconstruct & sync freelist in write mode.
	db, err := bolt.Open(cfg.outputDBFilePath, fi.Mode(), &bolt.Options{NoFreelistSync: false})
	if err != nil {
		return fmt.Errorf("[freelist rebuild] open db file failed: %w", err)
	}
	err = db.Close()
	if err != nil {
		return fmt.Errorf("[freelist rebuild] close db file failed: %w", err)
	}

	fmt.Fprintf(os.Stdout, "The freelist was successfully rebuilt.\n")
	return nil
}