package commands import ( "context" "fmt" "os" "os/signal" "strconv" "syscall" "time" "github.com/sevlyar/go-daemon" "github.com/urfave/cli" "github.com/photoprism/photoprism/internal/auto" "github.com/photoprism/photoprism/internal/mutex" "github.com/photoprism/photoprism/internal/photoprism" "github.com/photoprism/photoprism/internal/server" "github.com/photoprism/photoprism/internal/session" "github.com/photoprism/photoprism/internal/workers" "github.com/photoprism/photoprism/pkg/clean" "github.com/photoprism/photoprism/pkg/fs" ) // StartCommand registers the start cli command. var StartCommand = cli.Command{ Name: "start", Aliases: []string{"up"}, Usage: "Starts the web server", Flags: startFlags, Action: startAction, } // startFlags specifies the start command parameters. var startFlags = []cli.Flag{ cli.BoolFlag{ Name: "detach-server, d", Usage: "detach from the console (daemon mode)", EnvVar: "PHOTOPRISM_DETACH_SERVER", }, cli.BoolFlag{ Name: "config, c", Usage: "show config", }, } // startAction starts the web server and initializes the daemon. func startAction(ctx *cli.Context) error { conf, err := InitConfig(ctx) if err != nil { return err } if ctx.IsSet("config") { fmt.Printf("Name Value\n") fmt.Printf("detach-server %t\n", conf.DetachServer()) fmt.Printf("http-host %s\n", conf.HttpHost()) fmt.Printf("http-port %d\n", conf.HttpPort()) fmt.Printf("http-mode %s\n", conf.HttpMode()) return nil } if conf.HttpPort() < 1 || conf.HttpPort() > 65535 { log.Fatal("server port must be a number between 1 and 65535") } // Pass this context down the chain. cctx, cancel := context.WithCancel(context.Background()) // Initialize the index database. conf.InitDb() // Check if the daemon is running, if not, initialize the daemon. dctx := new(daemon.Context) dctx.LogFileName = conf.LogFilename() dctx.PidFileName = conf.PIDFilename() dctx.Args = ctx.Args() if !daemon.WasReborn() && conf.DetachServer() { conf.Shutdown() cancel() if pid, ok := childAlreadyRunning(conf.PIDFilename()); ok { log.Infof("daemon already running with process id %v\n", pid) return nil } child, err := dctx.Reborn() if err != nil { log.Fatal(err) } if child != nil { if !fs.Overwrite(conf.PIDFilename(), []byte(strconv.Itoa(child.Pid))) { log.Fatalf("failed writing process id to %s", clean.Log(conf.PIDFilename())) } log.Infof("daemon started with process id %v\n", child.Pid) return nil } } if conf.ReadOnly() { log.Infof("config: read-only mode enabled") } // Start web server. go server.Start(cctx, conf) if count, err := photoprism.RestoreAlbums(conf.AlbumsPath(), false); err != nil { log.Errorf("restore: %s", err) } else if count > 0 { log.Infof("%d albums restored", count) } // Start background workers. session.Monitor(time.Hour) workers.Start(conf) auto.Start(conf) // Wait for signal to initiate server shutdown. quit := make(chan os.Signal) signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM) <-quit // Stop all background activity. auto.Stop() workers.Stop() session.Shutdown() mutex.CancelAll() log.Info("shutting down...") cancel() if err := dctx.Release(); err != nil { log.Error(err) } // Finally, close the DB connection after a short grace period. time.Sleep(2 * time.Second) conf.Shutdown() return nil }