package commands import ( "bytes" "context" "fmt" "io" "os" "os/exec" "path/filepath" "regexp" "time" "github.com/urfave/cli" "github.com/photoprism/photoprism/internal/config" "github.com/photoprism/photoprism/internal/entity" "github.com/photoprism/photoprism/internal/photoprism" "github.com/photoprism/photoprism/internal/service" "github.com/photoprism/photoprism/pkg/fs" "github.com/photoprism/photoprism/pkg/txt" ) // RestoreCommand configures the backup cli command. var RestoreCommand = cli.Command{ Name: "restore", Usage: "Restores album and index backups", UsageText: `A custom index sql backup FILENAME may be passed as first argument. By default, the backup path is searched.`, Flags: restoreFlags, Action: restoreAction, } var restoreFlags = []cli.Flag{ cli.BoolFlag{ Name: "force, f", Usage: "overwrite existing index", }, cli.BoolFlag{ Name: "albums, a", Usage: "restore album yaml file backups", }, cli.StringFlag{ Name: "albums-path", Usage: "custom album yaml file backup `PATH`", }, cli.BoolFlag{ Name: "index, i", Usage: "restore index sql database backup", }, cli.StringFlag{ Name: "index-path", Usage: "custom index sql database backup `PATH`", }, } // restoreAction restores a database backup. func restoreAction(ctx *cli.Context) error { // Use command argument as backup file name. indexFileName := ctx.Args().First() indexPath := ctx.String("index-path") restoreIndex := ctx.Bool("index") || indexFileName != "" || indexPath != "" albumsPath := ctx.String("albums-path") restoreAlbums := ctx.Bool("albums") || albumsPath != "" if !restoreIndex && !restoreAlbums { for _, flag := range restoreFlags { fmt.Println(flag.String()) } return nil } start := time.Now() conf := config.NewConfig(ctx) _, cancel := context.WithCancel(context.Background()) defer cancel() if err := conf.Init(); err != nil { return err } if restoreIndex { // If empty, use default backup file name. if indexFileName == "" { if indexPath == "" { indexPath = filepath.Join(conf.BackupPath(), conf.DatabaseDriver()) } matches, err := filepath.Glob(filepath.Join(regexp.QuoteMeta(indexPath), "*.sql")) if err != nil { return err } if len(matches) == 0 { log.Errorf("no backup files found in %s", indexPath) return nil } indexFileName = matches[len(matches)-1] } if !fs.FileExists(indexFileName) { log.Errorf("backup file not found: %s", indexFileName) return nil } counts := struct{ Photos int }{} conf.Db().Unscoped().Table("photos"). Select("COUNT(*) AS photos"). Take(&counts) if counts.Photos == 0 { // Do nothing; } else if !ctx.Bool("force") { return fmt.Errorf("use --force to replace exisisting index with %d photos", counts.Photos) } else { log.Warnf("replacing existing index with %d photos", counts.Photos) } log.Infof("restoring index from %s", txt.Quote(indexFileName)) sqlBackup, err := os.ReadFile(indexFileName) if err != nil { return err } entity.SetDbProvider(conf) tables := entity.Entities var cmd *exec.Cmd switch conf.DatabaseDriver() { case config.MySQL, config.MariaDB: cmd = exec.Command( conf.MysqlBin(), "--protocol", "tcp", "-h", conf.DatabaseHost(), "-P", conf.DatabasePortString(), "-u", conf.DatabaseUser(), "-p"+conf.DatabasePassword(), "-f", conf.DatabaseName(), ) case config.SQLite: log.Infoln("dropping existing tables") tables.Drop() cmd = exec.Command( conf.SqliteBin(), conf.DatabaseDsn(), ) default: return fmt.Errorf("unsupported database type: %s", conf.DatabaseDriver()) } // Fetch command output. var out bytes.Buffer var stderr bytes.Buffer cmd.Stdout = &out cmd.Stderr = &stderr stdin, err := cmd.StdinPipe() if err != nil { log.Fatal(err) } go func() { defer stdin.Close() if _, err := io.WriteString(stdin, string(sqlBackup)); err != nil { log.Errorf(err.Error()) } }() // Run backup command. if err := cmd.Run(); err != nil { if stderr.String() != "" { log.Debugln(stderr.String()) log.Warnf("index could not be restored completely") } } } log.Infoln("migrating database") conf.InitDb() if restoreAlbums { service.SetConfig(conf) if albumsPath == "" { albumsPath = conf.AlbumsPath() } if !fs.PathExists(albumsPath) { log.Warnf("albums path %s not found", txt.Quote(albumsPath)) } else { log.Infof("restoring albums from %s", txt.Quote(albumsPath)) if count, err := photoprism.RestoreAlbums(albumsPath, true); err != nil { return err } else { log.Infof("%d albums restored from yaml files", count) } } } elapsed := time.Since(start) log.Infof("backup restored in %s", elapsed) conf.Shutdown() return nil }