add run command to load strategies from config file

cmd/run.go

@@ -0,0 +1,84 @@
+package cmd
+
+import (
+	"context"
+	"syscall"
+
+	"github.com/pkg/errors"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+
+	"github.com/c9s/bbgo/cmd/cmdutil"
+	"github.com/c9s/bbgo/pkg/bbgo"
+	"github.com/c9s/bbgo/pkg/config"
+	"github.com/c9s/bbgo/pkg/slack/slacklog"
+)
+
+var errSlackTokenUndefined = errors.New("slack token is not defined.")
+
+func init() {
+	runCmd.Flags().String("config", "", "strategy config file")
+	runCmd.Flags().String("since", "", "pnl since time")
+	RootCmd.AddCommand(runCmd)
+}
+
+var runCmd = &cobra.Command{
+	Use:   "run",
+	Short: "run strategies",
+
+	// SilenceUsage is an option to silence usage when an error occurs.
+	SilenceUsage: true,
+
+	RunE: func(cmd *cobra.Command, args []string) error {
+		configFile, err := cmd.Flags().GetString("config")
+		if err != nil {
+			return err
+		}
+
+		if len(configFile) == 0 {
+			return errors.New("--config option is not given")
+		}
+
+		userConfig, err := config.Load(configFile)
+		if err != nil {
+			return err
+		}
+
+		ctx, cancel := context.WithCancel(context.Background())
+		defer cancel()
+
+		slackToken := viper.GetString("slack-token")
+		if len(slackToken) == 0 {
+			return errSlackTokenUndefined
+		}
+
+		log.AddHook(slacklog.NewLogHook(slackToken, viper.GetString("slack-error-channel")))
+
+		db, err := cmdutil.ConnectMySQL()
+		if err != nil {
+			return err
+		}
+
+		environ := bbgo.NewDefaultEnvironment(db)
+		trader := bbgo.NewTrader(environ)
+
+		for _, entry := range userConfig.ExchangeStrategies {
+			for _, mount := range entry.Mounts {
+				trader.AttachStrategyOn(mount, entry.Strategy)
+			}
+		}
+
+		for _, strategy := range userConfig.CrossExchangeStrategies {
+			trader.AttachCrossExchangeStrategy(strategy)
+		}
+
+		err = trader.Run(ctx)
+		if err != nil {
+			return err
+		}
+
+		cmdutil.WaitForSignal(ctx, syscall.SIGINT, syscall.SIGTERM)
+		return err
+	},
+}